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 Epsom and Ewell
Surrey Build Group designs and builds loft conversions, extensions and alterations across Epsom and Ewell, including Epsom town, Ewell, Stoneleigh and Langley Vale. One team designs, engineers and builds your project, with your agreed build cost locked in from the day you appoint us.
Local knowledge
Building in Epsom and Ewell
Epsom Downs Racecourse has hosted the Derby since 1780, and the borough's green edges include Nonsuch Park, once the grounds of Henry VIII's Nonsuch Palace. Stoneleigh and Ewell are known for long streets of 1930s semis, while the older centre of Epsom has Georgian and Victorian houses within its conservation areas.
The 1930s semis of Stoneleigh and Ewell are textbook hip to gable loft conversions, often paired with a rear dormer and an ensuite. We also extend and remodel period homes around Epsom town centre, where conservation area rules shape what can be built.
What we do
Our services in Epsom and Ewell
Every service is designed, engineered and built by our own team for homes across Epsom and Ewell.
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Loft conversions in Epsom and Ewell
Velux, dormer, hip to gable and mansard lofts, plus bungalows expanded upwards, designed and engineered in house.
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Extensions in Epsom and Ewell
Single and double storey, side return and wraparound extensions, with open plan kitchens built around steels.
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Design and build in Epsom and Ewell
In house architects and structural engineers working with our own build team, under one contract.
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Structural alterations in Epsom and Ewell
Knock throughs, steel beams, chimney breast removal and new openings, designed by our structural engineer.
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Garage conversions in Epsom and Ewell
Integral and attached garage conversions into offices, bedrooms and family rooms, plus detached garage renovations.
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Project management in Epsom and Ewell
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 Epsom and Ewell 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 photoAshenden, Guildford GU2
Open larger photoMead House, Bramley GU5
Open larger photoMead House, Bramley GU5
Questions
Building in Epsom and Ewell: common questions
Do you cover Epsom and Ewell and the surrounding area?
Yes. We work across Epsom and Ewell, including Epsom, Ewell, Stoneleigh (part), Langley Vale, covering the KT17, KT18, KT19 postcodes, and we serve homeowners across all Surrey postcodes.
Do I need planning permission for a loft conversion or extension in Epsom and Ewell?
Many loft conversions and single storey rear extensions fall under permitted development, but conservation areas, flats and larger projects need planning permission. Applications for Epsom and Ewell homes are decided by the local planning authority, currently Epsom and Ewell Borough Council, and we prepare and submit everything on your behalf.
How much does a loft conversion or extension cost in Epsom and Ewell?
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.
