House extensions & lofts in Guildford
From town-centre period houses to village properties on the fringes, we design and build extensions, lofts and remodels across the GU postcodes. Our Surrey portfolio includes a Weybridge extension and a Claygate new-build — same team, fixed itemised price.
- Postcode GU1
- County Surrey
- Service Design & build
- Free quote 2 min online
What we deliver in Guildford
Every street sits differently — a period terrace, a post-war semi, a modern infill. We shape the recommendation around your actual house, its planning context and how you want to live.
From period-house rear extensions in town to large additions on suburban and village plots, Guildford's range of homes suits a wide spread of extension work.
Loft conversions add bedrooms and en-suites to Guildford's family homes, in town and in the surrounding villages.
Guildford's larger plots and village settings make new-builds and replacement dwellings genuinely viable — we run them from feasibility to handover.
SERVICE 01 House extensions in Guildford
Single-storey, double-storey, side-return and wrap-around extensions — designed, planned and built by one in-house team.
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SERVICE 02 Loft conversions in Guildford
Dormer, mansard, hip-to-gable and L-shape lofts — full-height ceilings, proper staircases, en-suites.
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SERVICE 03 New builds in Guildford
Ground-up homes on infill plots, demolition-and-rebuild, and small multi-unit schemes.
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Common Guildford questions
Things you might need to know about building in Guildford.
Do I need planning permission for an extension in Guildford?
Many extensions in Guildford fall under permitted development. Where a full application is needed, it goes to Guildford Borough Council — we assess your property type, the council's restrictions and any conservation status on the first visit, and handle the application ourselves.
How long does a project in Guildford typically take?
From first consultation to handover: 6–9 months for a single-storey extension or loft, 9–14 months for double-storey or wrap-around. We give you a tighter estimate after the survey.
Are there conservation areas in Guildford?
Several streets in Guildford Borough Council's area fall within conservation areas that restrict materials and detailing. We check your exact address against the register on the first visit, and we have approved schemes in conservation areas nearby.
What is a typical extension cost in Guildford?
Build cost in this part of Surrey runs £2,500–£4,000 per square metre for a finished extension including kitchen and finishes. Our calculator gives a personalised estimate.
Other Surrey neighbourhoods
We deliver projects across the borough — same team, same pricing, same fixed-price contract.
Ready to start your Guildford project?
Get an instant estimate in 2 minutes — no callbacks, no commitment. Or talk to a real person on 0800 0432 333.