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Extensions: completed project by Grand Innovations
Extensions · Sutton

House Extensions in Sutton.

Housing in Sutton covers a wide span of dates. The High Street and the central area are mostly Victorian, 1930s styles including art deco and moderne appear too, and the London County Council built the St Helier estate between 1928 and 1936, with the part outside Merton lying in Sutton and Carshalton. In Cheam, 38.2% of homes are detached and 23% semi-detached, which can leave room at the side as well as the rear. Sutton Garden Suburb, begun between 1912 and 1914 to Frederick Cavendish Pearson's plans, has controls of its own.

Read our house extension cost guide

Request Your Free Cost Proposal

Tell us about your Sutton project. We reply within 24 hours to arrange a free site visit, then send an 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

Our focus in Sutton.

Any application goes to the London Borough of Sutton, whose Design of Residential Extensions SPD, adopted on 9 October 2006, suggests rear extensions of no more than 2.7 metres for terraced houses and up to 3 metres, at most 3.5 metres, for semi-detached houses. In Sutton Garden Suburb, an Article 4 direction confirmed in 2007 means extensions, roof alterations, porches and other external changes need permission, and a 1984 direction does the same for extensions, dormer windows and other roof alterations on certain properties across the borough. Green Belt makes up 13.8% of the borough, in Cuddington to the south-west and Woodcote to the south. The council's rules for your address are checked before the design is drawn, and the work is set out in a free, itemised Cost Proposal.

As a design-and-build company we take on a limited number of projects at a time, so that every one gets the attention it deserves. If you are planning work on your Sutton home, we would like to hear about it.

The Grand Standard

  • 10% deposit, then weekly billing for completed work
  • One team from design to completion
  • Planning & building control managed for you
Local facts · Sutton

How far we are

13 miles

from our base in New Haw, measured in a straight line.

Planning in Sutton

Homes in Sutton fall under London Borough of Sutton (opens the council's website in a new tab). Its conservation areas here include Sutton Town Centre High Street Crossroads, Sutton Garden Suburb, Cheam Village, Carshalton Village and Wrythe Green.

We confirm the route for your house (Permitted Development, prior approval or a planning application) before you commit.

Local Knowledge · London

Building in Sutton

Every service we offer in Sutton, its planning authority and nearby towns, on one page.

More about building in Sutton

Local housing stock

Victorian houses near the High Street · 1930s houses, some art deco · Sutton Garden Suburb houses · St Helier estate homes · Detached and semi-detached houses in Cheam

Expertise & Standards

What we deliver in Sutton.

  • 01

    Single-Storey Rear

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

  • 02

    Double-Storey

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

  • 03

    Wrap-Around

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

  • 04

    Side-Return

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

  • 05

    Kitchen-Diner Extensions

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

  • 06

    Lantern Roofs & Glazing

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

Greenwich Rear Extension & Kitchen
Case Study · Greenwich, London

Greenwich Rear Extension & Kitchen

The Challenge

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.

Our Solution

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.

Extension, Kitchen & Bathroom
View this project
House Extensions in Sutton FAQs

Your questions, answered.

Your Cost Proposal

Measured first, then itemised.

Every Sutton project begins with a free consultation and a fully itemised Cost Proposal. We take a 10% deposit three weeks before the start date, then bill weekly for completed, signed-off work.

Read our house extension cost guide

Transform your Sutton home.

Tell us about your Sutton project and we'll arrange a free, no-obligation consultation, followed by a clear, itemised Cost Proposal, usually within 24 hours.

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, then weekly billing for completed work
Free proposal within 24 hours
Fully insured & accredited
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
CallFree Cost Proposal