
House Extensions in Reigate.
In Reigate, an extension is rarely the only thing a house needs. Much of the town's housing is Victorian, Edwardian or inter-war, and by the time a family decides to add space, the kitchen is tired, the wiring dates from an earlier refurbishment and the ground floor is divided in a way that no longer suits how anyone lives. The question we are most often asked here is not how to extend, but whether to extend and renovate at the same time.
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Tell us about your Reigate project. We respond within 24 hours with a clear, itemised proposal.
Specialist focus in Reigate.
Usually the answer is yes, and it is less disruptive to plan both together than to do them years apart. The steelwork that opens the back of the house, the new drainage runs and the rewiring for a larger kitchen are all easier to install while the rear wall is open than after the new room has been plastered and decorated. We plan the extension and the renovation as one programme, sequenced so that the parts of the house you are living in are disturbed for as short a time as possible.
As a premium 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 Reigate home, we would love to hear about it.
The Grand Standard
- Transparent weekly billing, no large deposits
- One team from design to completion
- Planning & building control managed for you
Planning authority
Reigate and Banstead Borough Council
We handle applications, party wall agreements and building regulations on your behalf.
Local housing stock
Period townhouses · Victorian villas · 1930s detached homes · modern family houses
Also serving nearby
What we deliver in Reigate.
- 01
One Programme, Not Two Projects
Extension, structural alterations, kitchen, services and finishes are planned and priced as a single piece of work. Trades are sequenced so nothing is installed only to be disturbed a month later, and you deal with one team from the first visit to handover.
- 02
Period and Inter-War Houses
Older Reigate houses often have solid walls, suspended timber floors and ceiling heights that differ from room to room. Joining a new structure to that fabric properly, with matched floor levels, compatible materials and damp-proofing that meets the old walls correctly, is where an extension succeeds or quietly fails.
- 03
Sloping Plots Below the Downs
Reigate sits at the foot of the North Downs and many gardens rise or fall away from the back of the house. A change in level can mean retaining walls, deeper foundations or steps down to the garden, and it is far better to establish this on the first visit than to discover it once excavation has begun.
- 04
Planning & Conservation
Parts of Reigate fall within conservation areas, where permitted development rights may be restricted and a more considered design is generally expected. We establish the position for your address with Reigate and Banstead Borough Council before design work begins, and manage the application and building control process throughout.

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.
Your questions, answered.
Your Cost Proposal
Measured first, then itemised.
Every Reigate project begins with a free consultation and a fully itemised Cost Proposal, and with weekly billing you only ever pay for completed, signed-off work.
Read our house extension cost guideTransform your Reigate home.
Tell us about your Reigate project and we'll arrange a free, no-obligation consultation, followed by a clear, itemised Cost Proposal, usually within 24 hours.
“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.”