Read Christian's full reviewWe spoke to a number of companies about designing and building our loft extension, one of whom wanted to put a box on the back and another said the existing room configuration would make it too hard to do! Leigh and Sarah had great vision for what could be achieved and worked with the architect to…

Areas covered
Loft conversions, extensions and renovations in Reigate and Banstead
Surrey Build Group designs and builds loft conversions, extensions and alterations across Reigate and Banstead, including Reigate, Redhill, Banstead, Horley and Tadworth. One team designs, engineers and builds your project, with your agreed build cost locked in when you appoint us.
Local knowledge
Building in Reigate and Banstead
Reigate's historic town centre sits beneath Reigate Hill and the North Downs, with the grounds of Reigate Castle and the lake at Priory Park close by. To the north, Banstead and its downs mark the edge of the borough, while Horley in the south sits beside Gatwick Airport.
Victorian villas around Reigate and Redhill, interwar semis in Banstead and Tadworth, and newer family homes in Horley all lend themselves to dormer lofts, hip to gable conversions and kitchen extensions. Reigate has several conservation areas, which we account for from your first meeting.
What we do
Our services in Reigate and Banstead
Every service is designed, engineered and built by our own team for homes across Reigate and Banstead.
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Loft conversions in Reigate and Banstead
Velux, dormer, hip to gable and mansard lofts, plus bungalows expanded upwards, designed and engineered in house.
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Extensions in Reigate and Banstead
Single and double storey, side return and wraparound extensions, with open plan kitchens built around steels.
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Design and build in Reigate and Banstead
In house architects and structural engineers working with our own build team, under one contract.
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Structural alterations in Reigate and Banstead
Knock throughs, steel beams, chimney breast removal and new openings, designed by our structural engineer.
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Garage conversions in Reigate and Banstead
Integral and attached garage conversions into offices, bedrooms and family rooms, plus detached garage renovations.
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Project management in Reigate and Banstead
A dedicated site crew, project manager and project coordinator running your build, with daily updates in your client portal.
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Under one roof
Why Reigate and Banstead homeowners choose us
A streamlined, comprehensive service supporting you through the whole journey, from concept to completion. The people who design your home work beside the people who build it, so nothing gets lost between consultants and contractors.
Read Nigel's full reviewWe are delighted with our new loft space. From our enquiry right through to completion of the project, Leigh and the team have been responsive and supportive, delivering a light and bright bedroom and bathroom which has exceeded our expectations. Leigh's design vision coupled with site manager…
Read Emma's full reviewWe recently had a loft conversion and large extension completed by Surrey Build Group, and I honestly couldn’t recommend them more highly. From the very first visit, Leigh was incredibly knowledgeable. He took the time to clearly explain what was possible in terms of the build, as well as what…
Our work
Recent projects by our team
Open larger photoAlbert Road, Ashford TW15
Open larger photoAlbert Road, Ashford TW15
Open larger photoAshenden, Guildford GU2
Questions
Building in Reigate and Banstead: common questions
Do you cover Reigate and Banstead and the surrounding area?
Yes. We work across Reigate and Banstead, including Reigate, Redhill, Banstead, Horley, Merstham, covering the RH1, RH2, RH6, KT20, SM7, CR5 postcodes, and we serve homeowners across all Surrey postcodes.
Do I need planning permission for a loft conversion or extension in Reigate and Banstead?
Many loft conversions and single storey rear extensions fall under permitted development, but conservation areas, flats and larger projects need planning permission. Applications for Reigate and Banstead homes are decided by the local planning authority, currently Reigate and Banstead Borough Council, and we prepare and submit everything on your behalf.
How much does a loft conversion or extension cost in Reigate and Banstead?
We price every project after a survey, because the size, structure and finish of each home is different. When you appoint us, your agreed build cost is locked in, protecting you from unexpected costs during the build.
Nearby areas we cover

Project Kick Start Meeting
Ready to talk about your project?
Book your Project Kick Start Meeting. We will talk through your plans, explain what is possible and follow up with a design and a fixed build price.
- In house architects and structural engineers
- Your build cost locked in when you appoint us
- A dedicated site crew, project manager and project co-ordinator
Prefer to talk? Call 0203 603 9777 or email hello@surreybuild.co.uk.
