House Extensions in Tunbridge Wells, Tonbridge, Sevenoaks & Beyond
Create the space you need without moving. From bright kitchen–diner extensions to two-storey additions with new bedrooms, we design, manage and build extensions that feel seamless with your home and deliver real, long-term value.
Working across Tunbridge Wells, Tonbridge, Sevenoaks and the wider West Kent / East Sussex area, we handle everything from early design ideas and budgets to structural work, finishes and sign-off. Whether it’s a side return in a Victorian terrace, a wraparound on a family semi, or a contemporary rear extension, our local team makes the process clear and stress-free.
Design & Build Extension Specialists in West Kent
As a trusted main contractor, we coordinate the entire build under one roof. Everything from consultation, planning, schedules, trades and quality control. All so you don’t have to. We regularly deliver single-storey rear and side returns, wraparounds, two-storey extensions, over-garage builds or even regular garage conversions to open up more space in homes without extending.
Our long-standing network of suppliers and trades keeps projects on time and on budget. With 150+ 5-star reviews and repeat clients across West Kent, you can expect clear communication, tidy sites and a high-quality finish from start to finish. See our latest feedback on Checkatrade.
Planning, Permissions & Building Regulations All Handled
Extensions often touch planning, conservation constraints (common in Tunbridge Wells & Sevenoaks), Party Wall matters and structural approvals. We guide you through drawings, submissions and Building Control, and liaise with your architect or recommend one of our trusted partners to keep decisions quick and compliant.
You’ll get itemised quotes, a defined programme and regular updates throughout, so you always know what’s happening and when.
Smart Extension Ideas That Add Value
We specialise in light-filled, practical layouts: open-plan kitchen–diners with island seating, utility/boot rooms, snug spaces, home offices and improved storage. Expect thoughtful details, rooflights, bifold or sliding doors, energy-efficient glazing, underfloor heating, acoustics and integrated lighting. All the touches that make everyday living easier.
Need finishing trades too? We deliver complete packages including kitchen installations, wood flooring, bespoke carpentry and landscaping to tie everything together.
Why Choose Brooks & Co Developments for Your Extension
As your house refurbishment contractor, no matter what your end goal is for your property we will always go above and beyond to deliver your dream outcome.
Perhaps you're redesigning your entire home for open-plan living or want to add new walls, doors or even a new kitchen. No matter your renovation requirements we're here to help and have the team to make it happen.
Our professional, qualified, and insured friendly teams carry out all home refurbishment and renovation work. Surveying your home also helps us advise on any planning permission requirements, structural work, or building regulations considerations.
Extension Services
- Single-storey rear & side-return extensions
- Wraparound & two-storey extensions
- Over-garage & porch extensions
- Garage Conversions
- Structural alterations (RSJs/steelwork) & reconfiguration
- Kitchen refurbishments & utility/boot rooms
- Bathrooms, plumbing & electrics
- Roofing, rooflights, windows & doors
- Plastering, decorating & finishing
- Wood flooring & carpentry
Testimonials
I used Sam and his team previously to fit a kitchen for me and recently we moved house and have used him to refurbish our new property. Brooks & Co Developments did an incredible job the first time and once again they have not disappointed! He project managed the whole job, from plastering bathrooms to fitting flooring etc We were provided with an extremely in-depth and detailed quotation at the beginning and was kept informed of progression throughout. I have recommended Brooks & Co Developments to everyone I know and will continue to do so. Amazing Job Again!
My wife and I were very impressed with how everyone worked and the quality of the finished project. Sam Brooks and his team took on our investment rental project from the design submitted by architects.. Sam acted as project manager liaising with the electrician, plumber, floor fitter and decorator to cover the parts of the project Everyone involved worked well together, were always polite, was extremely tidy and followed the laid down schedule. Really cannot fault anything. Highly recommended
Book a consultation
Tell us about your extension plans in Tunbridge Wells, Tonbridge or Sevenoaks and we’ll provide guidance, options and a clear, itemised quote.
