Modern House Extensions in Hayes.
With the evolution of Hayes into a major West London hub, homeowners are increasingly looking to maximize their property's potential. A rear or side-extension is the most effective way to add space and value without leaving the area.
Request Your Free Cost Proposal
Tell us about your Hayes project. We respond within 24 hours with a clear, itemised proposal.
Specialist focus in Hayes.
Grand Innovations delivers high-quality house extensions in Hayes, specializing in open-plan kitchen-diners and ground-floor reconfigurations. We understand the local Hayes housing stock and the specific planning framework of Hillingdon Council. Our extensions are designed to be 'growth-ready', providing the flexible space your family needs for the future.
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 Hayes 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
1930s semis · detached houses · Victorian villas
Also serving nearby
What we deliver in Hayes.
- 01
Rear & Wraparound Extensions
Transforming small kitchens into expansive multi-use family hubs with significant architectural impact.
- 02
Bi-fold & Glazing Integration
Using large-scale glazing to connect your Hayes home seamlessly to the outdoor space.
- 03
Kitchen-Diner Design
Full-service design and build from the foundations up to the final kitchen installation.
- 04
Permitted Development Expertise
Navigating Hillingdon's planning rules to maximize your extension size while minimizing red tape.
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 Hayes 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 Hayes home.
Tell us about your Hayes 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.”