Extension Builder in Kensington
We don't have a extension builder listed in Kensington yet.
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Building and renovation work in Kensington
Kensington, part of the Royal Borough of Kensington and Chelsea, is known for Edwardian mansion blocks, white stucco terraces, and single-family townhouses spanning styles from early Georgian speculative developments through to the present day. Its proximity to Kensington Palace and Kensington Gardens and good transport links via High Street Kensington and Notting Hill Gate stations, and the Circle and District lines 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 Kensington Palace and Kensington Court conservation areas - 38 in total, covering nearly three-quarters of the borough covering parts of Kensington, 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 Kensington 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 Kensington
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 Kensington
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Kitchen Extension Planning Permission in Kensington
Do you need planning permission for a kitchen extension in Kensington? Permitted development limits and local conservation area rules explained.
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Hiring safely in Kensington
A few things worth checking before you agree to any quote:
Frequently asked questions
How much does a extension builder cost in Kensington?
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 Kensington 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 Kensington?
It depends on the specific job, but it's a real question to ask locally: the Kensington Palace and Kensington Court conservation areas - 38 in total, covering nearly three-quarters of the borough cover parts of Kensington, 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 Kensington and Chelsea's planning department, or ask your builder to confirm before work starts.
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