Superior House Extensions in Keston.
In Keston, where spacious plots are the norm, a well-designed extension is the ultimate way to enhance your living environment. Grand Innovations delivers extensions in Keston that are designed to complement the area's diverse architectural heritage.
Request Your Free Cost Proposal
Tell us about your Keston project. We respond within 24 hours with a clear, itemised proposal.
Specialist focus in Keston.
We specialize in creating light-filled rear and side expansions that feature architectural glazing and high-specification kitchen-diners. We handle every aspect from Bromley planning applications to the final decorative finish, ensuring your new space adds both functional joy and significant value to your Keston home.
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 Keston 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
London Borough of Bromley
We handle applications, party wall agreements and building regulations on your behalf.
Local housing stock
Large detached homes · period cottages · luxury villas
Also serving nearby
What we deliver in Keston.
- 01
Bespoke Design Expertise
Designing expansions that maximize internal light and views of Keston's unique natural and historic landscapes.
- 02
Architectural Symmetry
Using premium materials and precision matching to ensure your extension feels like an original Keston home feature.
- 03
High-Concept Social Hubs
Creating expansive open-plan kitchen-living environments with gourmet stone surfaces and custom cabinetry in Keston.
- 04
Elite Turnkey Delivery
Managing all trades and regulatory approvals under our signature weekly billing framework in Keston.
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
Surveyed first, then itemised.
Every Keston 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.
Transform your Keston home.
Tell us about your Keston 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.”