House Extensions in Beckenham.
In Beckenham, space is at a premium, and an extension deserves careful design and execution. Whether you're planning a side-return expansion to a Victorian terrace or a rear extension to a semi-detached home, Grand Innovations delivers extensions that feel like a natural part of your building's history.
Read our house extension cost guideRequest Your Free Cost Proposal
Tell us about your Beckenham project. We reply within 24 hours to arrange a free site visit, then send an itemised Cost Proposal.
Our focus in Beckenham.
Our approach is to use specialised materials and precision engineering to ensure your extension suits the character of your Beckenham home. We handle the entire process from first concept to final handover.
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 Beckenham 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
Planning authority
London Borough of Bromley
We handle applications, party wall agreements and building regulations on your behalf.
Local housing stock
Victorian villas · Edwardian semis · modern apartments · 1930s detached houses
Also serving nearby
What we deliver in Beckenham.
- 01
Single & Double Storey Additions
Adding space to your Beckenham home with well-engineered single and double-storey extensions.
- 02
Matching the Existing House
Matching period brickwork and detailing so your extension sits naturally with the house.
- 03
Glazing
Installing high-performance glazing that brings plenty of light into your new Beckenham extension.
- 04
End-to-End Project Management
Managing all Bromley planning applications and specialist trades, with weekly billing for completed work.
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 Beckenham 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 guideTransform your Beckenham home.
Tell us about your Beckenham 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.”