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Builders in Teddington: Loft Conversions, Extensions & Renovations

Looking for a builder in Teddington? Crest Projects designs and builds loft conversions, house extensions and renovations for the Victorian streets around the station, the High Street and Bushy Park, with over 20 years of experience.

  • Over 20 years of experience
  • Design, approvals and build under one team
  • Written, itemised estimates
Aerial view of a rear house extension with bi-fold doors and patio, by Crest Projects, builders serving Teddington

Who are the best builders in Teddington for loft conversions and extensions?

Crest Projects is a West London building company that carries out loft conversions, house extensions and full renovations for homeowners in Teddington TW11. We manage design, Richmond Council approvals, Party Wall notices and the build under one team, with over 20 years of experience. Call 020 8088 8281 to arrange a site visit and written estimate.

Updated October 2026

Loft conversion builders in Teddington

Teddington is popular with families who value its village feel, river and Bushy Park, and who often prefer to improve their home rather than move. A loft conversion is a sensible way to add a bedroom and bathroom. Our loft conversion builders in Teddington design the layout, handle structural calculations and approvals, and build to Building Regulations. Because so much of Teddington is covered by Richmond Council's conservation areas, we check the planning position before any drawings are drawn.

Types of loft conversion in Teddington

On Teddington's Victorian terraces, rear dormers dominate because they add the most usable space with the least change to the front of the house. Rooflight schemes suit homes with good height, and mansards are uncommon, especially near the High Street and Park Road conservation areas.

Illustration of a house with rooflight (Velux) loft conversion windows set into the existing roof

Rooflight (Velux) conversions

Roof windows added without changing the roof shape.

Illustration of a house with a rear dormer loft conversion

Rear dormer loft conversions

Full-height space at the back of the roof.

Illustration of a house with a hip-to-gable loft conversion

Hip-to-gable loft conversions

Straightens a sloping side roof for a larger room.

Illustration of a house with a mansard loft conversion

Mansard loft conversions

Steep-sided, flat-roofed. Needs planning permission.

Loft conversions by property type

Illustration of a terraced house, a common property type for loft conversions

Terraced houses

The mid to late Victorian terraces around Teddington station suit rear dormers. Party Wall notices are normally needed, and roof changes visible from the street need extra care in conservation areas.

Illustration of a semi-detached house, a common property type for loft conversions

Semi-detached houses

Edwardian and 1930s semis towards Fulwell and Udney Park are good candidates for a hip-to-gable and rear dormer combination that adds a full extra floor.

Illustration of a detached house, a property type suited to larger loft conversions

Detached houses

Larger detached homes near Bushy Park and Teddington Lock have scope for bigger dormers, though conservation area and tree considerations still apply.

Is your Teddington loft suitable for conversion?

  • Roof structure: original cut roofs on Victorian terraces convert more easily than modern trussed roofs.
  • Head height: around 2.2 metres from floor to ridge is the usual starting point.
  • Conservation area: check whether your street falls in the Park Road, Teddington Lock or Teddington High Street conservation areas.
  • Neighbouring conversions: a street full of existing dormers can set a helpful precedent, though each home is assessed on its own merits.

See our loft conversion service

House extension builders in Teddington

Teddington's terraced streets often have narrow side passages and small rear kitchens, so a side-return or rear extension can transform how the house lives. Our house extension builders in Teddington build single-storey rear, side-return and wraparound extensions, taking care of foundations, steelwork, roofing and glazing, with careful design where a property sits in a conservation area.

Rear extension with glazed doors to a landscaped garden in Hanwell, West London
Rear extension, Hanwell
Open-plan extension with rooflights and sliding doors to the garden
Open-plan extension with rooflights
Rear extension to a Victorian terraced house in Northfields, West London
Rear extension, Northfields

Teddington is close to the Thames, so we check Environment Agency flood maps and ground conditions at the start. We also plan deliveries and skips around its narrower residential streets and the busy High Street.

See our house extension service

Home renovation and refurbishment in Teddington

Many Teddington homes have been lived in for decades and benefit from rewiring, replumbing and a new layout. We carry out whole-house renovations and individual kitchens and bathrooms, coordinating all trades under one team so you deal with a single point of contact.

Renovated open-plan kitchen and dining space with herringbone floor and rooflights
Kitchen and dining renovation
Kitchen extension with rooflights, exposed brick and white shaker units
Kitchen extension with rooflights
Renovated terraced house and rear garden in Hampton, West London
Renovation, Hampton
  • Full house renovation: strip-out, structural changes, services and finishes managed as one project. House renovation
  • Kitchen renovation: layout changes, new services, fitting and finishing. Kitchen renovation
  • Bathroom renovation: waterproofing, tiling, plumbing and fitting. Bathroom renovation

Why Teddington homes need an experienced local builder

Teddington's housing is a layered mix. Richmond Council's appraisal describes a tightly packed grid of mid to late Victorian streets around the railway station, 18th-century villas along parts of Park Road, and later Edwardian and interwar homes spreading out towards Fulwell and Hampton Wick. Each period brings different walls, roofs and foundations.

Key conservation areas locally include Park Road (south of the centre, bounded by the railway and Bushy Park), Teddington Lock, and High Street Teddington, which includes residential streets such as Manor Road, Cambridge Road and Waldegrave Road. Roofs, windows and front elevations in these areas are controlled more tightly.

Our experience across the London Borough of Richmond upon Thames means we know what its planning officers expect for materials, trees and neighbours, which keeps your project on schedule.

Teddington's tight Victorian grid near the station means houses sit close together, with shared walls and short rear gardens. Good planning around neighbours, scaffolding and deliveries makes a real difference to how smoothly a project runs, and we treat it as part of the design rather than an afterthought.

Aerial view of a rear house extension with bi-fold doors and patio, built by Crest Projects
Rear extension with bi-fold doors

Do you need planning permission to build in Teddington?

Many loft conversions and single-storey rear extensions in Teddington can go ahead under permitted development, but its conservation areas restrict those rights. Use the table as a guide and confirm your address with Richmond Council.

Planning and permitted development guide for common building projects in Teddington
ProjectPermitted developmentPlanning permission needed
Loft conversion (rear dormer)Often yes, within volume limits (40 m³ terraced, 50 m³ semi-detached or detached)Yes, in conservation areas such as Park Road or Teddington Lock, or if limits are exceeded
Single-storey rear extensionOften yes, up to 3 m (terraced or semi) or 4 m (detached), or 6 m / 8 m through prior approvalYes, if larger, in a conservation area, or if height and materials rules are exceeded
Side-return extensionSometimes, if single storey and within width and height limitsOften yes, especially in conservation areas or where it wraps around the rear
Kitchen or bathroom renovationYes, internal work does not need planningNo, though Building Regulations apply and a listed-building check may be needed

General guidance only. Rules depend on your property, location and any Article 4 direction. We check this for you before design starts.

Which project suits your Teddington home?

Teddington's mix of Victorian, Edwardian and interwar housing shapes which projects work best. Use this as a starting point, and we will confirm after a site visit.

Popular building projects by property type in Teddington
Property typeWhere you find itPopular projects
Victorian terraceStreets around Teddington station, Waldegrave RoadRear dormer loft, side-return extension, kitchen refit
Edwardian housePark Road, Udney Park RoadLoft conversion, rear extension, whole-house renovation
Interwar semi-detached houseFulwell, Hampton WickHip-to-gable loft, rear extension, kitchen and bathroom refits
Period villaPark Road, Teddington LockCareful renovation, sympathetic rear extension

Building in a Teddington conservation area

Richmond Council has designated several conservation areas in Teddington, including Park Road, High Street Teddington and Teddington Lock. Always check your address before ordering drawings.

  • Park Road (Conservation Area 22) covers Victorian streets around the station and older villas, with Bushy Park to the south.
  • High Street Teddington (Conservation Area 37) includes the High Street plus roads such as Manor Road, Cambridge Road and Waldegrave Road.
  • Teddington Lock (Conservation Area 27) is next to the High Street area and the river, where design and materials are controlled closely.
  • Trees are protected in conservation areas, so you must notify the council before cutting or pruning, which can affect extension layouts.

We review your address against Richmond Council's conservation area maps before design starts, so you know early what is realistic.

What affects the cost of building work in Teddington?

No two Teddington projects cost the same. The main factors are:

  • Project type: a rear dormer, a side-return extension and a whole-house renovation have very different scopes.
  • Age of the house: Victorian terraces near the station often need more structural work than 1930s semis.
  • Approvals: planning, structural engineering, Party Wall surveyors and Building Control fees.
  • Ground and flood conditions: closeness to the Thames can mean extra groundwork and flood-resilient design.
  • Access: narrow streets and parking restrictions affect deliveries and skip placement.

Try our online cost calculator for a starting figure, or ask us for a written estimate.

How to choose a builder in Teddington

Searching for a builder in Teddington brings up directories, aggregators and many firms. Whoever you choose, check these points first:

  • Conservation area experience: ask whether they have worked in the Park Road, High Street or Teddington Lock areas.
  • Ask about terrace experience: tight Victorian streets need careful scaffold and delivery planning.
  • Check conservation area knowledge: a builder should know whether Park Road, High Street or Teddington Lock affects you.
  • Ask about Bushy Park fringe trees: mature trees near the park can influence foundations and extension layout.
  • Confirm flood checks: properties closer to the Thames may need flood-aware design.
  • Insurance: ask to see public liability cover.
  • Written estimate: an itemised scope, not a lump sum.

How a Teddington building project works with Crest Projects

  1. Site visit and brief

    We visit your Teddington home, listen to what you want, check access and parking around Teddington Village or Park Road, and survey the existing structure.

  2. Design and approvals

    Drawings, structural calculations, a check against London Borough of Richmond upon Thames planning rules and conservation areas, Party Wall notices and Building Regulations.

  3. Written estimate

    An itemised estimate with scope, programme and payment stages.

  4. Build

    A dedicated team manages the works, keeps you updated and keeps neighbours in Teddington Lock informed.

  5. Handover

    Final inspection, snagging, certificates and Building Control sign-off.

Local builders across Teddington TW11 and nearby

We work throughout Teddington TW11, including:

  • Teddington Village
  • Park Road
  • Teddington Lock
  • Udney Park
  • Fulwell
  • Hampton Wick
  • Bushy Park fringe
  • Waldegrave Road

Also building nearby

See our work on the projects page, read about Crest Projects, explore our property investment service or get a starting figure from the cost calculator.

Find Crest Projects near Teddington

Crest Projects Ltd
128a Boston Rd, London W7 2HJ
020 8088 8281
info@crestprojects.co.uk

Our office is on Boston Road in Hanwell, West London, a straightforward drive from Teddington. View our Google Business Profile to see our location, photos and reviews.

Builders in Teddington: frequently asked questions

How much does a builder in Teddington cost?

Teddington costs depend on whether you are converting a Victorian terrace near the station or renovating a larger house nearer the park, and on conservation area requirements. We give a written, itemised estimate after a site visit, and our online cost calculator gives a first figure.

Which parts of Teddington are in a conservation area?

Richmond Council has designated several, including Park Road, Teddington Lock and High Street Teddington. High Street Teddington includes residential roads such as Manor Road, Cambridge Road and Waldegrave Road. Check the council's maps for your exact address. We do this before design starts.

Do I need planning permission for a loft conversion in Teddington?

Many Teddington loft conversions fall under permitted development, within volume limits, but not in conservation areas or where limits are exceeded. Roof extensions on the front slope need planning permission. A lawful development certificate from Richmond Council confirms your position.

What is the best extension for a Victorian terrace near Teddington station?

A side-return extension, often combined with a rear extension, is popular because it widens a narrow kitchen and brings in light. A rear extension alone may be simpler where the side passage is shared. The best option depends on plot width, neighbours and the planning position.

Do trees affect extension plans in Teddington?

They can. Trees in conservation areas are protected, and you must give the council six weeks' notice before cutting or pruning most of them. Roots and canopy also affect where foundations can go. We include tree considerations in early design so the layout is realistic.

Is flood risk a concern for building work in Teddington?

Parts of Teddington near the Thames sit in Environment Agency flood zones, which can affect extension levels and basements. Check the Environment Agency flood map for your address. Where it applies, we design with flood resilience in mind and talk through the options.

Do you handle party wall agreements in Teddington?

Yes. Teddington's Victorian streets are densely built, so almost every loft conversion or side-return extension touches a shared wall or boundary. A Party Wall Act 1996 notice is normally needed. We serve notices, agree the schedule of condition and keep neighbours up to date.

Which Teddington areas do you cover?

We cover all of Teddington TW11, including Teddington Village, Park Road, Teddington Lock, Udney Park, Fulwell and Hampton Wick, plus neighbouring areas such as Twickenham, Hampton and Richmond.

Does living near Bushy Park affect building work?

Not directly, but mature trees and larger plots near the park can influence foundation design and extension layouts, and some streets sit in conservation areas. We survey trees and check designations early so your plans fit the site.

Can you extend a house on Park Road or Waldegrave Road?

Often, yes, but both fall within conservation areas, so design, materials and roof changes need care. A rear extension is usually the most achievable option. We prepare drawings that respect the street and talk through the planning position before you commit.

How do I get a quote from Crest Projects?

Call 020 8088 8281, email info@crestprojects.co.uk or use the enquiry form on our contact page. Tell us your Teddington address, the work you have in mind and your budget range. We then arrange a site visit, discuss options and send a written estimate.

Planning building work in Teddington?

Speak to a builder with over 20 years of experience. Tell us about your Teddington project and we will arrange a site visit and written estimate.

Crest Projects Ltd, 128a Boston Rd, London W7 2HJ
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