Build Team

Business Details

Trusted Home Extension Specialists in London

Established to address the growing demand for high-quality home extensions in London, Build Team has become a trusted partner for over 1,600 homeowners. Our dedicated team of architectural designers and build specialists delivers seamless end-to-end solutions, from initial concept to final construction. We prioritise transparent pricing structures, fixed-fee design packages, and a unique payment-in-arrears model to protect client investments.

With a three-year structural guarantee on all projects, we combine technical expertise with exceptional project management to ensure stress-free renovations. Our commitment to excellence is demonstrated through detailed case studies, virtual 3D tours of completed projects, and a proven track record of navigating complex planning requirements in conservation areas.

Services

Ground Floor Extension Loft Conversion Side Return Extension Kitchen Extension Wraparound Extension Rear Extension Party Wall Service Design Consultation Build Management 3D Visualisation

Highlights and features

We offer fixed fee design packages with transparent costings
Our team provides a structural guarantee for 3 years
Experienced design and build management from start to finish
Payment in arrears protects your investment throughout the project
Specialist knowledge of London planning regulations and conservation areas

What people say

Clear pricing structures Efficient build management Strong communication Stress-free experience High-end product

Website

Update Listing

Services

Ground Floor Extension

Create additional living space with our bespoke ground floor extensions. Our team handles all aspects from planning permission to final construction, ensuring seamless integration with your existing property. Ideal for expanding kitchens, living areas or creating dedicated workspaces.

Loft Conversion

Transform unused loft space into functional rooms while adding value to your property. We specialise in dormer, mansard and hip-to-gable conversions, complete with structural reinforcement and building regulation compliance.

Side Return Extension

Maximise your property's footprint with side return extensions. Our designs optimise natural light and flow between indoor and outdoor spaces, often incorporating modern glazing solutions and energy-efficient materials.

Design Consultation

Access expert design advice through our complimentary 30-minute consultations. Our RIBA-registered architects provide tailored solutions, feasibility assessments, and cost estimates to match your specific requirements and budget.

3D Visualisation

Experience your proposed extension through immersive 3D visualisations. This service allows clients to explore design options virtually, making informed decisions about layouts, materials and spatial relationships before construction begins.

Questions

What types of extensions do you specialise in?

We specialise in ground floor extensions, loft conversions, side return extensions, wraparound extensions, and rear extensions across London.

How does your payment system work?

We use a payment-in-arrears model where payments are made after completion of each project stage to protect client investments.

Do you provide structural guarantees?

Yes, all our projects include a three-year structural guarantee covering major structural defects.

How can I get an initial cost estimate?

Use our online quote calculator to receive a detailed cost estimate in under 60 seconds based on your property details and extension requirements.

What areas do you cover?

We primarily serve London boroughs including SW9, SE22, KT1, and SE26, with select projects across Greater London.

Reviews (6)

Write a Review

Helen N.

Jan 15, 2022 Report

Build Team got our planning application for a double storey extension completed and approved quickly. We initially used a different builder but Build Team help us out really quickly when our first builder left us in the lurch. They did a really great job and Mauro was polite and helpful throughout. I would highly recommend Build Team for both planning and building work

Nick Mather

Nov 11, 2021 Report

Went with Build Team as a previous project fell through and from the start they were supportive and honoured some previous agreements. We didn't know where to start with planning and design and Build Team took care of the whole process for us. David the designer had lots of knowledge and was able to tell us what was achievable for the budget, and was very responsive with changes and alterations to the design. They submitted all the documents to building control/council etc which was ideal. At the build stage, the quote was competitive and Sean Kember the Build Manager brought the team round for

Chris Bishop

Jul 09, 2021 Report

First impressions were positive and the architect came up with ideas that hadnt even crossed my mind , so from a design perspective on paper was very positive. He was also happy to book time in to speak to my next door neighbours who had some concerns
There were a couple of problems when the build start including the discovery of a main sewer pipe which put the project back a bit and consumed all my contingency Funds. The fact that this could happen and I was told was not unusual could have been highlighted much more effectively at the beginning of the project and I had to rethink finances

Georgina Hills

Jun 09, 2021 Report

We went with Build Team for design and build of our ground floor return extension and loft extension. We were overall pleased with our experience of Build Team and it gave us protection and reassurance when undertaking such a large project with relatively little prior experience of building work. We were extremely pleased with the building contractors, who delivered the project on time and to a very high standard. Build Team supported when a few minor issues with neighbours arose, and that was very reassuring.

David Stocks

Nov 20, 2018 Report

We engaged Build Team to design our loft conversion and ground floor extension. We have been extremely satisfied with the quality of their service. Like many design and build companies, they created the drawings, and helped us get through planning permission successfully. But what really stood out was the quality of the service they provided after the fact. A few months after we had the completed drawings and had paid, we ran into an issue with our build. Build Team created an entirely new set of drawings for us, which solved the problem, and got us back through planning permission. There's just

Yasmine Charafeddine

Apr 17, 2017 Report

Why to use Build Team form a cynic whose build has just been signed off: 1) When looking for builders, all the friends I spoke to about their build confirmed that in the end they could not recommend their builders. 2) Build Team have the best builders. Artan and his team (particularly Nick and Bash) were some of the most polite and hardworking people I've met. I cannot say enough good things about them, and nor unbelievably, can my neighbours! They are passionate about whatthey do and their attention to detail is faultless. If there 'had' somehow been a problem I would have the comfort that Build