House Extensions
Need more space without moving? At Ashmere we build single-storey and double-storey extensions for homeowners across Kent, Essex and South London. We’re a family-run team, so you deal directly with the people doing the work, from the first visit to handover.
What we build
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Rear and side-return extensions
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Single-storey and double-storey extensions
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Wraparound extensions
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Kitchen-diner and family-room extensions
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Garage conversions
What’s included
We look after the whole project, including:
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Coordinating design and drawings with our architect or yours
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Help with planning, permitted development checks and building regulations
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Groundworks and foundations
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Structure, roofing and weatherproofing
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Electrics, plumbing and heating
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Plastering, flooring and finishing
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A final walk-round and snagging, with aftercare
How it works
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Free site visit. We look at the space and talk through your ideas.
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Clear quote. You get an itemised price, so you know what’s included.
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Plans and approvals. We help arrange drawings, planning and building regulations.
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The build. We agree a schedule up front and update you regularly.
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Handover. We walk through the finished work together and fix any snags.
Timescales and costs
A typical single-storey extension takes around 8-16 weeks once on site, and larger or double-storey projects take longer. Prices depend on size, design and ground conditions, so we always quote after seeing your property.
Our recent work
Frequently asked questions
Do I need planning permission?
Many single-storey rear extensions can go ahead under permitted development, but there are size limits and extra rules in conservation areas and for listed buildings. We’ll check with your local council and advise you.
Do I need building regulations approval?
Yes. We’ll help arrange it and make sure the work meets the standards.
Will I need to move out?
Usually not. We keep disruption down and protect the rest of your home.
Do you handle party wall agreements?
We can advise and coordinate with a party wall surveyor if your neighbours are affected.
Are you insured?
Yes. Certificates are available on request.
Ready to talk?
Tell us what you have in mind and we’ll arrange a free, no-obligation site visit. Call 07532 385169 or fill in the below form
