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Design and build · London

House Extensions
in Richmond

House extensions in Richmond, designed and built by one team from our base in New Haw, about 11 miles away.

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Greenwich Rear Extension & Kitchen, Greenwich, London
Our workExtension, kitchen & bathroom, Greenwich, London

  • 10 to 14 weeks

    to build a single-storey rear extension

  • Richmond upon Thames

    Borough Council decides planning

  • Conservation areas

    Central Richmond, Richmond Green, Richmond Riverside and others

  • 11 miles

    from our base in New Haw

Building in Richmond

What shapes an extension here

House extensions for Richmond's houses

The right extension in Richmond depends on the house and its street. The 1870s two-storey terraces of The Alberts may suit a single-storey rear or side-return extension, while the interwar semi-detached houses between Lower and Upper Richmond Road may take a rear extension, and sometimes a double-storey one, depending on neighbours and the plot. Georgian terraces around Richmond Green and on Richmond Hill, many of them listed, need an extension that works with the building's character, and a listed house will usually need listed building consent for one. Build times are typically 10 to 14 weeks for a single-storey rear extension and 16 to 24 weeks for double-storey or wrap-around work.

Planning your extension

Article 4 directions on named streets, among them Dynevor Road and The Vineyard (St. Matthias, Richmond), St Mary's Grove and Townshend Terrace (Sheen Road, Richmond) and Shaftesbury Road and Lower Mortlake Road (Kew Foot Road), mean extensions and additions there can need permission even where they would otherwise be Permitted Development. The House Extensions and External Alterations SPD, adopted on 1 June 2015, and the Richmond and Richmond Hill Village Planning Guidance SPD, adopted on 7 June 2016, guide design. Metropolitan Open Land runs along part of the Thames edge, around Asgill House and Trumpeters House, and an extension in Flood Zone 2 or 3 needs a declaration on floor levels. Where an application is needed, a decision on a standard one usually takes 8 to 13 weeks.

What we build

House extensions we design and build

House extensions

  1. Single-Storey Rear

    Push out into the garden to create a bright kitchen-diner or family room, often achievable under Permitted Development.

  2. Double-Storey

    Add space across two floors at once, gaining extra living space below and a bedroom or bathroom above.

  3. Wrap-Around

    Combine a rear and side-return extension into one L-shaped footprint for a dramatic increase in ground-floor space.

  4. Side-Return

    Reclaim the narrow, underused alley beside Victorian and Edwardian homes to widen and flood the rear with light.

  5. Kitchen-Diner Extensions

    Open the back of the house into a single sociable hub built around cooking, dining and family life.

  6. Lantern Roofs & Glazing

    Roof lanterns, rooflights, bi-fold and sliding doors that pour daylight deep into the new space.

Greenwich Rear Extension & Kitchen, Greenwich, London

Our nearest finished extension

Greenwich Rear Extension & Kitchen

Greenwich, London · about 13 miles from Richmond

The brief

Opening the rear of a 1930s semi into one room meant removing a load-bearing wall between the existing kitchen and the new extension, on a site where a narrow side passage was the only route for materials in and spoil out. The new ground-floor shower room also had to be formed within the existing rear lobby, well away from the original layout's plumbing.

What we built

The structural opening was formed with a steel beam cased into a shallow flush bulkhead that follows the line of the removed wall, keeping the ceiling clean and the sightline from kitchen to garden completely open. Deliveries were sequenced in small daily loads through the side passage to keep the neighbouring boundary clear, and services for the new shower room were routed within the extension's floor build-up so no boxing-in was needed in the finished rooms.

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Extension FAQs

Questions we get asked here

Straight answers on house extensions in Richmond.

Sometimes, depending on the house and street. Fewer extensions qualify as Permitted Development inside a conservation area, and on streets with an Article 4 direction, such as several in the St. Matthias, Richmond and Sheen Road, Richmond conservation areas, the council says extensions and additions are among the changes that can need permission. Each house's route is confirmed before design.

Free Cost Proposal

Planning an extension in Richmond?

Tell us about the project. We'll arrange a free site visit, then send a clear, itemised Cost Proposal.

Step 1 of 2 · About your project

A rough idea is fine. It helps us plan the right scope with you.

So we can check the project is in our service area.

Takes 30 seconds · No obligation · Free proposal within 24 hours

Prefer to talk? Call 01932 950158
  • 10% deposit, due three weeks before the start date
  • Weekly billing for completed, signed-off work
  • One team from first drawings to completion
Rather talk it through? 01932 950158
“The attention to detail and absolute financial transparency provided by Grand Innovations completely redefined our expectations of what a home renovation could be. High standard of work, the extension is beautiful and has added so much value onto our home. Really appreciated the weekly billing, rather than a big amount upfront.”
Adrienne C. · Home extension
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