Builders in Newbury
AA Contractor builds house extensions, loft conversions, structural alterations, and full home renovations across Newbury and the surrounding West Berkshire area. The team handles structural calculations, building regulations submissions, and building control sign off under one contract, so homeowners deal with one point of contact from the first site visit to the completion certificate.
With 20 years of residential building experience across Berkshire, AA Contractor works on Victorian terraces in East Fields, 1930s semis in Wash Common, period properties near Northbrook Street, and newer family homes off the A343 Andover Road corridor. Projects are delivered with a written scope of works, staged payments, and a fixed programme agreed before any work begins.
House Extensions in Newbury
AA Contractor builds rear extensions, side return extensions, double-storey extensions, and wraparound extensions on residential properties across Newbury, West Berkshire.
The type that suits your home depends on how the property was built and what you want to gain. Here is how each one works on Newbury’s housing stock.
Rear Extensions
A single-storey rear extension is the most common project on Newbury’s Victorian terraces and 1930s semis. It adds a kitchen-diner, utility room, or family room at the back of the house without touching the footprint of the upper floor.
Under permitted development, a semi-detached or terraced property in Newbury can extend up to 3 metres from the original rear wall without a planning application to West Berkshire Council. Detached houses can go up to 4 metres. The prior approval (neighbour consultation) scheme, administered by West Berkshire Council at their offices on Market Street, RG14 5LD, extends those limits to 6 metres and 8 metres respectively, provided neighbours raise no valid objection within 21 days of notification.
Properties within or adjacent to the Newbury Town Centre Conservation Area, which was first designated in March 1971 and covers parts of Northbrook Street, Bartholomew Street, and the wharf area along the Kennet and Avon Canal, are subject to additional design requirements. A full planning application may be required in those cases.
AA Contractor carries out house extensions across Newbury from initial groundworks through to building control sign off, handling structural calculations, party wall notices, and trades coordination under one contract.
Side Return Extensions
Victorian and Edwardian properties in East Fields, and along roads like York Road and Andover Road, often have a narrow side passage between the rear of the house and the boundary wall. A side return extension fills that passage and opens up the ground floor, typically adding 10 to 15 square metres to the kitchen area.
This type of extension works with Newbury’s terraced housing rather than against it. The roof is usually a flat or glazed structure to bring light in from above. Because the extension sits within the original footprint of the plot, it often falls under permitted development, though the proximity to the boundary wall triggers the Party Wall etc. Act 1996 in most cases.
Double-Storey Extensions
A double-storey extension adds ground floor space and a first floor room above it. For families in Newbury who need both a larger living area and an extra bedroom, it offers better value per square metre than two separate projects because the foundations and roof span both floors.
Double-storey extensions at the rear of a property are sometimes permitted development, but the eaves and ridge height, proximity to boundaries, and relationship to the principal elevation all affect eligibility. AA Contractor reviews each property individually before confirming the permitted development position.
Wraparound Extensions
A wraparound combines a rear extension with a side return, creating a large L-shaped or open plan ground floor. It is popular on the 1930s detached and semi-detached properties in Wash Common and the Speen area, where plot widths are more generous than on the Victorian terraces closer to the town centre.
Wraparound extensions almost always require a full planning application to West Berkshire Council because they affect more than one elevation of the property. AA Contractor prepares the planning drawings and supporting documents as part of the project.
What Every Extension in Newbury Involves
Regardless of type, every house extension in Newbury built by AA Contractor goes through the same stages. Groundworks and foundations are specified according to the ground conditions on your plot. Wash Common sits on the Bagshot Formation, a sand and gravel deposit, while the East Fields area closer to the River Kennet floodplain has clay subsoil. The two behave differently under load and require different foundation depths and types.
All structural work, including RSJ installation where walls are removed to open up the extension into the existing house, is calculated by a chartered structural engineer registered with the Institution of Structural Engineers or the Institution of Civil Engineers. The calculations are submitted to BCS, the building control partnership between West Berkshire Council, the Royal Borough of Windsor and Maidenhead, and Wokingham Borough Council, with a building notice before work begins.
A completion certificate from BCS is issued when the work passes final inspection. This certificate is required when the property is sold.
Home Renovations in Newbury
AA Contractor carries out full home renovations, open plan reconfigurations, and period property refurbishments across Newbury residential properties.
Full Renovations
A full renovation covers every part of a property from top to bottom. In Newbury, this most often happens on Victorian terraces in East Fields that have been bought as a project, or on older properties near the town centre that have not been updated since the 1970s or 1980s.
AA Contractor produces a written scope of works before any project begins. The scope lists every stage, what work is included, what materials are specified, and what the payment milestone is for that stage. There are no lump sum contracts and no open-ended agreements. Payments are tied to physical progress on site.
Open Plan Reconfigurations
Removing the wall between the front reception room and the rear kitchen to create an open plan ground floor is one of the most requested renovation projects in Newbury. It is also the project where corners are most frequently cut by other builders, because the internal wall in a Victorian or 1930s property is almost always load-bearing.
The internal walls in Newbury’s Victorian terraces, particularly those built in the East Fields area during the last quarter of the 19th century, are solid 9-inch brick with lime mortar bedjoints. Removing them requires a rolled steel joist sized by a structural engineer, padstones specified for the bearing capacity of the lime mortar, a building notice to BCS, and a site inspection by a BCS inspector before the beam is concealed in the ceiling.
AA Contractor coordinates the structural engineer, the BCS submission, and the installation. The completion certificate is in place at the end of the project.
Period Property Renovation
Newbury has a large number of Victorian and Edwardian properties on roads including York Road, London Road, and the streets running off Andover Road. Many of them retain original features: coving, ceiling roses, sash windows, tiled hallway floors, and panelled front doors. A renovation that ignores these features loses the character that makes the property worth buying in the first place.
AA Contractor works with traditional materials where the property requires them. Lime mortar for pointing and patching, breathable paints for solid brick walls that need to release moisture, matching red brick for any new brickwork, and traditional sash window repairs rather than replacement with uPVC.
AA Contractor carries out full home renovations in Newbury with a written scope of works, staged payments, and single-point project management — covering structural alterations, building control coordination through BCS, and period material specifications on Victorian and Edwardian properties across West Berkshire.
Loft Conversions in Newbury
AA Contractor builds Velux, dormer, hip-to-gable, and mansard loft conversions on residential properties across Newbury, Berkshire.
Velux Conversions
A Velux conversion keeps the existing roof structure and installs roof windows to bring in light. It is the least expensive type and the fastest to build. It works on properties where the existing head height between the ridge and the floor joists already meets or exceeds 2.2 metres without any roof modification.
Velux conversions in Newbury almost always fall under permitted development, meaning no planning application to West Berkshire Council is required. Building regulations from BCS still apply, covering the structural adequacy of the new floor, the fire escape provision, and the insulation standard under Part L of the Building Regulations.
Dormer Conversions
A dormer projects vertically from the slope of the existing roof and creates a box structure with straight walls and a flat or shallow pitch roof. It is the most common loft conversion type across Newbury’s Victorian and 1930s semi-detached properties because it creates a full-height room rather than a cramped attic space.
Most rear dormer conversions in Newbury fall under permitted development: the volume addition must not exceed 40 cubic metres for terraced houses or 50 cubic metres for semi-detached and detached houses, and the dormer must not face the principal elevation of the property. Properties within the Newbury Town Centre Conservation Area, or those on roads visible from the Kennet and Avon Canal National Trail, may have additional planning considerations.
Structural requirements include new floor joists (typically 47 by 220mm C24 graded timber) to carry the new floor load, a dormer frame tied back to the existing roof structure, and a fire escape window or alternative arrangement under Part B of the Building Regulations. The Party Wall etc. Act 1996 applies where the dormer sits adjacent to a shared party wall, which includes most terraced and semi-detached properties along roads like Essex Street, Carnegie Road, and Bartholomew Street.
Hip-to-Gable Conversions
On the 1930s detached and semi-detached properties in Wash Common and Greenham, the roof slopes on all four sides, which limits the usable floor area in a Velux or standard dormer conversion. A hip-to-gable conversion replaces one sloping side with a vertical gable end, creating significantly more usable space.
Hip-to-gable work affects the roofline visible from the street. Whether it requires planning permission depends on which elevation is changed and whether the property is in or near a conservation area. AA Contractor reviews this before committing to the design.
What Every Loft Conversion in Newbury Requires
Building regulations apply to every loft conversion, regardless of permitted development status. BCS inspects the structural stage, the pre-plaster stage, and the final stage before issuing the completion certificate. A party wall notice must be served on adjoining owners a minimum of two months before work begins on semi-detached and terraced properties. AA Contractor coordinates both.
A dormer loft conversion in Newbury adds a full-height bedroom and en suite to Victorian and 1930s semi-detached properties, typically falling under permitted development — no planning application required — though building regulations, structural calculations, and a party wall notice are required in every case. Indicative cost range: £25,000 (Velux) to £65,000+ (hip-to-gable). All types require BCS building control sign off.
Garden Rooms and Home Offices in Newbury
AA Contractor builds fully insulated garden rooms and home offices in Newbury, handling the concrete or screw-pile base, timber frame, cladding, insulation, glazing, and electrical connection under one contract.
Newbury’s housing market supports strong demand for garden offices. Properties in Wash Common, Speen, and the Greenham Common development area regularly have rear gardens large enough for a standalone structure. Many homeowners now treat a garden office as a permanent workspace rather than a seasonal shed.
Planning Rules for Garden Rooms in Newbury
Most garden rooms in Newbury fall under permitted development. The key conditions are: single storey only, maximum height of 2.5 metres if the structure is within 2 metres of a boundary, and the total footprint of all outbuildings must not exceed 50 percent of the garden area. Properties within the Newbury Town Centre Conservation Area, or on the fringes of the North Wessex Downs National Landscape, may require a planning application to West Berkshire Council.
Building regulations approval is generally not required for garden rooms under 30 square metres of floor area, provided the structure is built substantially of combustible materials and is at least one metre from a boundary. Where the garden office includes sleeping accommodation, or exceeds 30 square metres, building regulations apply.
What AA Contractor Builds Into a Garden Office
The foundation type depends on the subsoil. Wash Common’s sand and gravel geology suits screw piles, which minimise excavation and drainage disruption. East Fields’ clay soil requires a concrete slab with adequate depth to avoid frost heave.
The structure is a timber frame, with wall, floor, and roof insulation specified for year-round use. Berkshire winters are wet rather than severe, but an uninsulated garden room becomes unusable between October and March. AA Contractor specifies insulation values that maintain a comfortable working temperature without excessive heating costs.
Electrical supply runs as a dedicated circuit from the house consumer unit, trenched underground to the garden room. The cable is armoured and buried at the depth required by Part P of the Building Regulations. Internal fit-out includes data conduit, lighting, and sockets positioned for a functional workspace.
Optional additions: underfloor heating, bifold or French doors, WC annexe, and kitchenette. Garden rooms built by AA Contractor in Newbury typically fall under permitted development and include concrete or screw-pile foundation, full insulation, double-glazed doors, and a dedicated electrical circuit — creating a year-round workspace without disrupting the main house.
Landscaping and Outdoor Work in Newbury
AA Contractor installs patios, block paving driveways, retaining walls, and decking for residential properties across Newbury, West Berkshire.
Patios
Newbury’s most popular patio materials are natural stone, porcelain, and Indian sandstone. Each requires a correct sub-base to perform over Berkshire’s wet winters. AA Contractor installs a minimum of 100mm of compacted MOT Type 1 hardcore below the bedding mortar, which prevents the surface settling or lifting as the ground moves through seasonal moisture changes.
Properties near the River Kennet, including those along the towpath corridor between the Kennet and Avon Canal and Victoria Park, need drainage channels to prevent surface water pooling in low-lying gardens. AA Contractor specifies and installs drainage as part of the patio project.
Block Paving Driveways
Replacing a front garden with a hardstanding driveway in Newbury requires attention to permitted development rules. Under the Highways Act 2003, resurfacing a front garden over a certain size with an impermeable surface requires planning permission. Permeable block paving, pattern imprinting, or gravel avoids this requirement and is now the standard AA Contractor recommends for front garden work in Newbury.
Retaining Walls
Wash Common sits on a plateau above the Newbury town centre. Properties on Kiln Road, Newtown Road, and the roads off Essex Street have rear gardens that slope significantly. Where the level difference exceeds 600mm, a retaining wall is required to create a usable flat area.
AA Contractor builds retaining walls in masonry and concrete block. Walls over one metre require structural calculations. Drainage behind the wall is specified to prevent hydrostatic pressure building up, which is the most common cause of retaining wall failure in Berkshire’s clay-rich subsoils.
AA Contractor installs patios, block paving, retaining walls, and decking across Newbury — specifying the correct sub-base and drainage for West Berkshire’s clay and gravel subsoil, and using permeable paving for front driveways to comply with the Highways Act 2003.
Painting and Decorating in Newbury
AA Contractor’s painting and decorating team works on interior and exterior residential projects across Newbury, from full property redecoration to exterior masonry on period properties.
Interior Decorating
Preparation is the difference between a finish that lasts five years and one that fails in eighteen months. AA Contractor’s decorators fill, sand, seal, and prime every surface before any paint is applied. Period properties in East Fields and on London Road often have plaster walls that have been painted many times over decades. The decorators assess the surface condition before quoting, so the specification matches what the wall actually needs rather than what a quick coat covers up.
Newbury’s Victorian solid brick walls, particularly on north-facing elevations, can hold moisture internally. Painting them with standard vinyl emulsion traps that moisture and causes the paint to peel within a year. Breathable paints, including clay-based, silicate, or lime-wash formulations, allow the wall to release moisture and maintain the finish. AA Contractor specifies the correct paint type for the substrate rather than using a standard product across every job.
Original period features, including coving, cornices, ceiling roses, and panelled doors, are prepared and painted with care. No masking tape is left on coving plaster, which damages the surface when removed. Cutting in is done by hand.
Exterior Decorating
Exterior timber on Newbury properties, including fascia boards, soffit, bargeboards, and sash window frames, deteriorates faster than most homeowners expect. Paint failure starts where moisture enters the end grain of the timber at joints and mitre cuts. AA Contractor strips, primes the end grain, applies undercoat, and finishes with at least two coats of exterior gloss or micro-porous paint. The difference in lifespan between a correctly prepared exterior finish and a surface-coated one is three to five years.
Exterior masonry on Newbury’s red brick properties is painted with weather-resistant masonry paint. Two full coats applied when the surface temperature is above 5 degrees Celsius and no frost is forecast within 48 hours. AA Contractor schedules exterior work around the Berkshire weather calendar, which means most exterior projects run between April and October.
AA Contractor’s painting and decorating service in Newbury covers interior and exterior decoration, using breathable lime-compatible paint on period solid brick walls, weather-resistant masonry paint on exterior elevations, and precise period detail preparation on Newbury’s Victorian and Edwardian housing stock.
Structural Alterations in Newbury
AA Contractor carries out load-bearing wall removal, RSJ installation, chimney breast removal, and floor strengthening on residential properties across Newbury, West Berkshire.
Load-Bearing Wall Removal and RSJ Installation
In Newbury’s Victorian and Edwardian properties, the internal wall between the front reception room and the rear kitchen is almost always load-bearing. It carries the floor joists above it, the wall above that, and sometimes a chimney stack. Removing it without the correct structural support causes the floor above to sag and the brickwork above to crack, sometimes catastrophically.
The process AA Contractor follows is this: a chartered structural engineer visits the property, assesses what the wall carries, and calculates the RSJ size needed to replace it. The RSJ, properly known as a rolled steel joist or universal beam, spans the opening on two padstones — blocks of dense concrete or engineering brick that transfer the load from the beam into the walls on either side. In Newbury’s pre-1920 solid brick properties, the padstone specification must account for the lower bearing capacity of lime mortar compared to modern cement mortar.
AA Contractor submits a building notice to BCS before starting. BCS inspects the structural stage before the beam is concealed, and again at completion. The completion certificate is issued when BCS is satisfied. This paperwork is essential when the property is sold.
Chimney Breast Removal
Many Victorian properties on roads like Carnegie Road, Bartholomew Street, and the streets running through East Fields have chimney breasts projecting into the reception rooms and bedrooms. Removing a chimney breast on the ground floor requires supporting the chimney stack above it through to the roof. AA Contractor takes the chimney breast back to the flue, installs structural support to the stack, and makes good the ceiling and floor. Building regulations and a BCS inspection apply.
Floor Strengthening
When a loft conversion is added to a Victorian or Edwardian property, the existing floor joists between the loft and the floor below are often undersized by modern standards. They were designed for a cold unoccupied loft, not a habitable bedroom. AA Contractor sisters new joists alongside the existing ones to bring the floor up to the structural requirement for a habitable room.
Structural alterations in Newbury — including RSJ installation, load-bearing wall removal, and chimney breast removal — require structural engineer calculations, a building notice to BCS, and a site inspection before the beam is concealed. AA Contractor coordinates all three stages so the completion certificate is in place when the work finishes. The certificate is required when the property is sold.
New Builds and Self-Build in Newbury
AA Contractor manages new build and self-build residential projects across Newbury and the West Berkshire area, from groundworks through to building control completion certificate.
The West Berkshire Local Plan Review 2023 to 2041, adopted by West Berkshire Council in June 2025, allocates new residential sites across the Newbury and Thatcham area. These include land at Bath Road in Speen, Coley Farm off Stoney Lane, and land off Greenham Road. Self-build plots in the West Berkshire area are registered on the council’s self-build register.
Foundations and Groundworks
The foundation type depends on what the ground does under load. Wash Common’s sand and gravel sits on the Bagshot Formation and behaves predictably. The East Fields area and the land closer to the River Kennet has clay and alluvial deposits that swell and shrink with moisture. A ground investigation is often carried out before foundations are specified for a new build on an unfamiliar Newbury plot.
AA Contractor builds strip, trench fill, and raft foundations depending on the ground conditions and the structural engineer’s recommendation.
Building Regulations and Planning
New builds in Newbury require a full planning application to West Berkshire Council at their Market Street offices. The planning application fee in England is £578 to £648 depending on the number of dwellings. A separate full plans application is submitted to BCS for building regulations. BCS inspects at foundation level, damp proof course, structural frame, pre-plaster, and completion.
New build construction in Newbury must comply with Approved Document L 2021 (Conservation of Fuel and Power), which requires significantly better insulation and airtightness than was standard before 2021. In practice, this means thicker wall insulation, triple-glazed or high-specification double-glazed windows, and mechanical ventilation with heat recovery in well-sealed properties. AA Contractor works with architects who design to Part L from the outset rather than retrofitting compliance at the end.
Costs
New build construction costs in the South East of England run between £2,300 and £3,000 per square metre of gross internal floor area at standard specification in 2025, based on data from the Royal Institution of Chartered Surveyors Building Cost Information Service. This is the build cost only. Land, planning fees, architect fees of 8 to 15 percent of build cost, structural engineer fees, and connection to utilities are additional. VAT on new build residential construction is zero-rated, which is a significant financial advantage compared to renovation work.
AA Contractor manages new build projects in Newbury from groundworks through to BCS completion certificate, specifying foundations for West Berkshire’s varied ground conditions and using Berkshire red brick to meet local planning character requirements under the West Berkshire Local Plan 2023 to 2041.
Maintenance Work in Newbury
AA Contractor carries out maintenance and repair work on residential properties across Newbury, including plastering, carpentry, kitchen fitting, bathroom renovation, and general building repairs.
Plastering and Rendering
Newbury’s Victorian and Edwardian properties have lime plaster walls. Lime plaster is softer than modern gypsum plaster, it cracks in a different pattern, and it cannot be patched successfully with gypsum plaster because the two materials have different movement rates. AA Contractor matches lime mortar for period property repairs rather than applying a modern patch that cracks out within a year.
External render on Newbury properties, particularly on 1930s properties with pebbledash or smooth render, fails when water penetrates the crack between the render and the brickwork. AA Contractor hacks off failed render back to the brick, treats the surface, and applies a sand and cement or lime-based render coat with the correct mix for the property’s exposure level.
Carpentry and Joinery
Door hanging, skirting board installation, architrave fitting, and staircase repairs are carried out by AA Contractor’s carpentry team. On period properties in Newbury, matching the profile of existing Victorian skirting or reproducing a specific architrave detail requires a router and a skilled hand rather than standard off-the-shelf mouldings from a builders’ merchant.
Kitchen and Bathroom Fitting
AA Contractor installs kitchens and bathrooms as a standalone service or as part of a larger renovation contract. Supply and fit or fit only from the homeowner’s supply. Bathroom tiling, waterproofing to Part C of the Building Regulations, sanitaryware installation, and connection to existing plumbing.
Landlord and Rental Property Maintenance
West Berkshire has 26,487 private renters across 11,440 private rented homes, according to the 2021 Census. Newbury’s rental market, particularly in the streets around the town centre and along the Andover Road corridor, requires regular between-tenancy refurbishment to maintain the condition of the property. AA Contractor works with Newbury landlords on planned maintenance schedules and reactive repairs.
AA Contractor carries out maintenance work across Newbury residential properties, from period lime plaster repairs in Victorian East Fields terraces to full bathroom and kitchen refurbishments in Wash Common family homes, and between-tenancy renovations for West Berkshire landlords.
Planning Permission and Building Regulations in Newbury
Planning and building regulations are the part of any building project that homeowners find most confusing. This section covers what the rules actually are for Newbury residential properties.
The Local Planning Authority
West Berkshire Council is the Local Planning Authority for Newbury. Their planning service is based at the Council Offices on Market Street, Newbury, RG14 5LD, and handles all planning applications, permitted development queries, and pre-application advice for the West Berkshire district. The planning service email is planapps@westberks.gov.uk and the telephone number is 01635 519111.
The West Berkshire Local Plan Review 2023 to 2041 was adopted in June 2025 and sets new policies for development across the district, including updated requirements for energy efficiency and sustainable drainage on new planning applications.
Building Control in Newbury
Building control in Newbury is handled by BCS, a shared building control service between West Berkshire Council, the Royal Borough of Windsor and Maidenhead, and Wokingham Borough Council. BCS carries out structural inspections at key stages of every project and issues the completion certificate when the work passes final inspection.
A completion certificate is a legal document. It confirms the work was carried out to building regulations standard and it is required as part of the conveyancing process when a property is sold. Any extension, loft conversion, or structural alteration carried out without building control notification creates a problem for the seller when the property changes hands.
The Party Wall etc. Act 1996
The Party Wall etc. Act 1996 covers England and Wales and applies to any building work that affects a shared wall, or to excavations within 3 to 6 metres of a neighbouring property boundary. On Newbury’s semi-detached and terraced streets, this means the Act applies to most extension projects, most loft conversions, and all chimney breast removals.
A party wall notice must be served on the adjoining owner a minimum of two months before work begins. The neighbour can agree to the works, appoint the building owner’s surveyor as an agreed surveyor, or appoint their own surveyor. In Newbury, local chartered building surveyors including RMA Surveyors in Berkshire and Mursell and Company in Thatcham regularly act for both building owners and adjoining owners on party wall matters. AA Contractor coordinates the notice process so it does not delay the build programme.
Permitted Development in Newbury
Permitted development rights allow homeowners to carry out certain types of work without a planning application. The limits for common projects are:
- 1Rear extensions: 3 metres from the original rear wall for semi-detached and terraced houses. 4 metres for detached houses. The prior approval scheme extends these to 6 metres and 8 metres provided neighbours do not raise a valid objection.
- 2Loft conversions: 40 cubic metres additional volume for terraced houses. 50 cubic metres for semi-detached and detached houses. The addition must not face the principal elevation.
- 3Garden rooms and outbuildings: single storey, maximum 2.5 metres height within 2 metres of a boundary, total outbuildings must not exceed 50 percent of the garden area.
These limits do not apply to listed buildings. Properties within or adjacent to the Newbury Town Centre Conservation Area, or within any of West Berkshire’s 52 other conservation areas, may have permitted development rights restricted by Article 4 Directions issued by West Berkshire Council.
Not sure where your project stands?
AA Contractor reviews your permitted development eligibility and planning obligations on every free site visit — at no charge.
Book a Free Site VisitWhy Newbury Homeowners Work With AA Contractor
There are specific reasons why homeowners in Newbury ask AA Contractor back for a second or third project, and why they refer neighbours. None of them are about marketing.
20 Years of Residential Building in Berkshire
AA Contractor, trading as A and A Master Contractor Ltd, has delivered residential building projects across Berkshire for 20 years. That length of time in one area means the team has worked on most of the property types in Newbury: the Victorian terraces in East Fields, the 1930s semis in Wash Common, the Edwardian semis on York Road, the post-war properties in Greenham, and the newer detached houses in the developments off the A343. Each property type has its own structural characteristics, its own material requirements, and its own planning context. Experience across all of them means the team identifies problems before they become cost overruns.
Written Scope on Every Project
Every AA Contractor project starts with a written scope of works. The scope lists every stage of the build, what work is included at each stage, what materials are specified by type and grade, and what the payment milestone is for that stage. If something changes during the build, a written variation is agreed before the cost changes. There are no surprises at the end of a job.
Building Control Coordination
AA Contractor prepares and submits building notices to BCS for every project that requires building regulations approval. The team coordinates the BCS inspection schedule, ensures the site is ready for inspection at the right stage, and collects the completion certificate at the end of the project. Homeowners do not need to deal with BCS directly unless they want to.
Structural Engineer Network
RSJ calculations, loft conversion structural packs, and foundation design require a chartered structural engineer. AA Contractor works with engineers registered with the Institution of Structural Engineers or the Institution of Civil Engineers. The structural calculations are submitted with the building control application. This is not optional on structural work, but many builders either skip it or hand it over to the homeowner to arrange.
Period Property Knowledge
Lime mortar, solid 9-inch brick, suspended timber floors, and lime plaster behave differently from modern construction materials. Getting the specification wrong on a Newbury Victorian property causes damp, cracking, and failed finishes. AA Contractor specifies the correct materials from the start of the project rather than discovering the problem after the work is done.
Ready to get started?
AA Contractor offers a free site visit with no obligation. Get a written, itemised estimate within five working days.
Book a Free Site Visit +44 7487 294195Our Process — From First Call to Completion Certificate
Every AA Contractor project in Newbury follows the same six stages. The process is the same whether the project is a single-storey rear extension or a full home renovation.
- 1
Site Visit
AA Contractor visits the property. The visit covers what the homeowner wants to achieve, what the property’s structure requires, whether the project falls under permitted development or needs a planning application, whether the Party Wall etc. Act 1996 applies, and whether any conservation area constraints are relevant. No charge.
- 2
Written Estimate
A written, itemised estimate is produced within five working days of the site visit. Every stage of the build is costed separately. Materials are specified by type and grade. A payment schedule tied to defined build milestones is included. The homeowner knows the total cost before committing.
- 3
Regulatory Submissions
Where a planning application is needed, AA Contractor prepares the drawings and supporting documents and submits to West Berkshire Council. A building notice is submitted to BCS before work begins. Party wall notices are served on adjoining owners. The minimum two-month party wall notice period is built into the programme from day one.
- 4
Structural Engineer
For extensions, loft conversions, and structural alterations, a chartered structural engineer produces calculations for the building control submission. RSJ sizes, padstone specifications, floor load calculations, and loft floor joist designs are confirmed before any structural work begins.
- 5
Build
The project begins on the agreed start date. AA Contractor coordinates all trades from the same point of contact. BCS inspects at key structural stages, including foundations, the structural beam before it is concealed, and pre-plaster. All site work operates under the Health and Safety at Work Act 1974 and the Construction (Design and Management) Regulations 2015.
- 6
Completion Certificate
BCS carries out the final inspection. The completion certificate is issued when the work passes. AA Contractor hands over the full documentation pack: building notice, inspection records, structural calculations, and the certificate. These documents are required for any future property sale.
AA Contractor’s process in Newbury runs from a free site visit through structural engineer calculations, building notice submission to BCS, build, and staged inspections — ending with a completion certificate that is required when the property is sold. Every stage is documented in writing from day one.
Areas Covered Across West Berkshire
AA Contractor’s primary service area is Newbury, RG14. The team also works across the surrounding West Berkshire towns and villages.
Newbury (RG14)
Victorian East Fields terraces along Carnegie Road and Essex Street, 1930s semis in Wash Common off the Andover Road, period properties near Northbrook Street and the Kennet and Avon Canal, and modern family homes in the Greenham Common developments.
Thatcham (RG18)
Adjacent to Newbury to the east along the A4 Bath Road. Mix of post-war and modern estates. Extensions and kitchen renovations are the most requested projects.
Hungerford (RG17)
West Berkshire market town on the A4 Kennet valley route. Period properties with stone and brick construction. Extensions and renovations on older residential stock.
Kingsclere (RG20)
Village on the boundary of West Berkshire and Hampshire. Period property renovation and extension work. West Berkshire planning rules apply to the majority of the village.
Hermitage (RG18)
Village east of Newbury on the edge of the North Wessex Downs. Mix of older and newer housing. Extensions, general building, and maintenance work.
Woolton Hill (RG20)
South West Berkshire village. Larger plots, extensions, garden rooms, and new build work on rural residential properties.
Frequently Asked Questions — Builders in Newbury
Check how long the builder has worked in Newbury specifically, whether they provide a written scope and itemised estimate, how they handle building control coordination, and whether they have worked on your property type. Ask to see evidence of completion certificates from comparable projects. AA Contractor provides a free site visit and written estimate before any commitment.
A single-storey rear extension in Newbury costs between £36,000 and £75,000 depending on size and specification. South East build costs run £1,800 to £2,500 per square metre, according to the Federation of Master Builders 2025 guidance. A double-storey extension costs £90,000 to £120,000 at standard specification. These figures cover build cost only. Architect, structural engineer, planning application, and party wall surveyor fees are additional.
Most single-storey rear extensions in Newbury fall under permitted development — no planning application to West Berkshire Council is required. Semi-detached and terraced houses can extend up to 3 metres, or 6 metres under the prior approval scheme. Detached houses can go to 4 metres, or 8 metres under prior approval. Properties within or adjacent to the Newbury Town Centre Conservation Area may need a full planning application. Building regulations approval from BCS is always required.
A single-storey rear extension takes 10 to 16 weeks from groundworks start. Groundworks and foundations take 2 to 3 weeks. Structural frame and roof take 2 to 3 weeks. First and second fix trades take 3 to 4 weeks. Finishes take 2 weeks. The pre-build programme — planning, building notice, structural engineer calculations, and the minimum two-month party wall notice period — adds to the total timeline.
A party wall agreement (formally a Party Wall Award) is produced under the Party Wall etc. Act 1996 when building work affects a shared wall or excavations come within 3 to 6 metres of a neighbouring property boundary. Most semi-detached and terraced extensions and loft conversions in Newbury require one. A notice must be served a minimum of two months before work starts. AA Contractor coordinates this with your appointed party wall surveyor.
A Velux loft conversion in Newbury costs £25,000 to £35,000. A dormer costs £40,000 to £60,000. A hip-to-gable conversion costs £45,000 to £65,000. All loft conversions require building regulations approval from BCS regardless of permitted development status. Party wall notices are required for semi-detached and terraced properties. Timescale for a dormer: 6 to 12 weeks on site.
The Newbury Town Centre Conservation Area, designated in March 1971 and covering parts of Northbrook Street, Bartholomew Street, and the canal wharf area, imposes additional design requirements on extensions and alterations. West Berkshire Council may restrict permitted development rights within it through Article 4 Directions. Contact the planning service at planapps@westberks.gov.uk or 01635 519111 for a pre-application query.
Most garden rooms under 30 square metres do not require building regulations approval, provided they are single storey, built substantially of combustible materials, and at least one metre from a boundary. If the garden room includes sleeping accommodation or exceeds 30 square metres, building regulations apply. Planning permission is generally not required if the structure meets permitted development conditions. AA Contractor confirms both before every garden room project.
Removing a load-bearing wall requires a structural engineer’s assessment, a rolled steel joist sized for the opening, padstones specified for the wall’s bearing capacity, a building notice to BCS before work begins, and a BCS inspection before the beam is concealed. A completion certificate is issued at the end. This applies to all Newbury property types. In pre-1920 solid brick properties, the lime mortar bedjoints require specific padstone calculations.
Yes. Newbury has Grade I, II*, and II listed buildings including properties on Northbrook Street, at St Bartholomew’s, and along the canal wharf. Any works to a listed building require Listed Building Consent from West Berkshire Council in addition to any planning permission. AA Contractor specifies appropriate traditional materials, including lime mortar, matching brick, and heritage glazing, and liaises with West Berkshire Council’s conservation officers throughout.
AA Contractor provides a free site visit followed by a written, itemised estimate. Each stage of the build is costed separately. Materials are specified by type and grade. A payment schedule tied to defined build milestones is included. Planning application fees, structural engineer fees, and party wall surveyor fees are identified separately so the total project cost is clear from the start. No open-ended contracts and no verbal agreements.
AA Contractor’s primary service area is Newbury, RG14. The team also works across Thatcham, Hungerford, Kingsclere, Burghclere, Hermitage, and Woolton Hill in West Berkshire, and across the wider Berkshire area including Reading, Windsor, Maidenhead, and Slough for larger projects. Contact AA Contractor for a free site visit at any of these locations.
Get a Free Written Estimate
AA Contractor visits your Newbury property, reviews permitted development eligibility and party wall obligations, then provides a written estimate with an itemised cost breakdown and a payment schedule tied to build stages.
Phone: +44 7487 294195 | WhatsApp available | Online enquiry form at aacontractor.co.uk
20 years across West Berkshire | Written scope on every project | Building control coordination included