top of page
white exterior of building with black doors

House Extensions – Seamless Designs, Clapham

Binding quotations for financial peace. Fully managed extension process. Certified safety inspections included.

Call now to discuss your extension plans!

40 Years Of Extension Expertise

Tailored Designs For Every Lifestyle

Compliance With All Building Regulations

Expand Your Home With Expert Extensions

Prestige Building Design Ltd specialises in creating stunning house extensions that transform properties in Clapham, South East London, and across London. Whether you’re dreaming of a larger kitchen, a new living area, or a dedicated workspace, we bring your vision to life with precision and care. Extensions not only add valuable space but also significantly enhance the value and functionality of your home. With our team’s 40 years of experience, you can trust us to deliver results that exceed expectations.

house extension under construction

A Fully Managed Extension Service

From the initial planning stages to the final inspection, we handle every aspect of your house extension, home renovation, and loft conversion projects. Our team guides you through obtaining permissions and consents, ensuring all work complies with current regulations. Once construction is complete, Prestige Building Design Ltd arrange for Local Council inspections and provides all necessary gas and electricity safety certifications, ensuring a smooth and stress-free process.

under construction extension building

Seamless House Extensions Designed Around Your Home

Our house extensions are designed to seamlessly blend with your existing property, enhancing both aesthetics and functionality. With a focus on quality craftsmanship and meticulous attention to detail, we ensure every project is completed to the highest standards. Our transparent pricing and commitment to customer satisfaction make us a trusted choice for homeowners across Clapham and London.

Warren and his team have been with us for over a year now, first building our extension and then retained for additional work around the house. The quality of work is high, the pricing is very competitive and the team are a pleasure to have around. I am pleased we hired Warren and do not hesitate to recommend him.

Expand Your Living Space With Expert House Extensions

Call now to start your house extension journey with us!

Modern Sunroom or conservatory extending into the garden

Contact Us

134 Stonhouse Street,

London, SW4 6BG

Business Hours

Monday – Friday: 08:00 - 17:00

Saturday: 08:00 - 13:00

Sunday: Closed

Connect With Us

  • Google Business Profile
Review us on Yell logo

PRESTIGE BUILDING DESIGN LIMITED, registered as a limited company in England and Wales under company number: 11290796.
Registered Company Address: 134 Stonhouse Street, Clapham, London, United Kingdom, SW4 6BG.

​

Terms of Use | Privacy & Cookie Policy | Trading Terms

© 2026. The content on this website is owned by us and our licensors. Do not copy any content (including images) without our consent.

bottom of page