Extension Builder in Kingston upon Thames
17 vetted extension builders covering Kingston upon Thames. Post your job free and compare responses directly - no obligation.
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Building and renovation work in Kingston upon Thames
Kingston upon Thames, part of the Royal Borough of Kingston upon Thames, is known for a medieval market-town street pattern around All Saints Church, Victorian villas in Surbiton Hill Park, and Vernacular Revival red-brick houses on Richmond Road. Its proximity to All Saints Church and Kingston Market Place and good transport links via Kingston station, served by National Rail continue to make it a popular place for homeowners to invest in renovation and extension projects rather than move - keeping steady demand for reliable, quality extension building work in the area.
With the Kingston Old Town and Richmond Road conservation areas - 26 in total across the borough covering parts of Kingston upon Thames, planning and conservation requirements are a real factor in extension building work here - work that would be straightforward elsewhere can need extra care, matching materials, or formal planning consent locally. Homeowners in Kingston upon Thames increasingly look for tradespeople who understand that local context, rather than a generic, one-size-fits-all quote.
What to expect from a extension builder in Kingston upon Thames
Extensions typically need either planning permission or a Lawful Development Certificate confirming permitted development rights, plus building control approval throughout.
As with any trade, it's worth asking to see proof of insurance and relevant qualifications before work starts, checking recent examples of similar jobs, and getting the scope of work agreed in writing - see our guide on questions to ask before hiring below.
Typical project costs in Kingston upon Thames
How to Choose a Builder in Kingston upon Thames
A practical checklist for picking a trustworthy builder if you live in Kingston upon Thames.
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House Extension Cost in Kingston upon Thames: 2026 Price Guide
Single and double-storey extension costs in Kingston upon Thames, and the local factors that move the price.
Kitchen Extension Planning Permission in Kingston upon Thames
Do you need planning permission for a kitchen extension in Kingston upon Thames? Permitted development limits and local conservation area rules explained.
Loft Conversion & Dormer Planning Permission in Kingston upon Thames
Do you need planning permission for a loft conversion or dormer in Kingston upon Thames? Roof volume limits, party walls and conservation area rules explained.
Hiring safely in Kingston upon Thames
A few things worth checking before you agree to any quote:
Frequently asked questions
How much does a extension builder cost in Kingston upon Thames?
A single-storey extension typically costs from around £1,800 per m² for a standard finish, before architect fees, planning application fees, and building control sign-off - which usually add another £3,000-£8,000. Get a ballpark for your own project with our free extension cost calculator.
How do I know a extension builder in Kingston upon Thames is trustworthy?
Every builder on builderfinder.uk is manually checked before their profile goes live - we match their photo ID to their face, verify their UK proof of address, and check their trades and insurance. You can also see their reviews and completed jobs on their profile, and look for the Verified badge, or a Companies House Verified badge if they're a limited company.
Do I need planning permission for extension building work in Kingston upon Thames?
It depends on the specific job, but it's a real question to ask locally: the Kingston Old Town and Richmond Road conservation areas - 26 in total across the borough cover parts of Kingston upon Thames, and work that would be permitted development elsewhere can need formal planning consent here, or need to match existing materials and style. Always check with the Royal Borough of Kingston upon Thames's planning department, or ask your builder to confirm before work starts.
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