Whole-house renovations
A full renovation of your Cotswold home, room by room, to one design.
See whole-house renovationsHouse extensions across the Cotswolds
Extra space, built in stone and oak
We design and build house extensions across the Cotswolds, in stone, oak and timber that sit easily beside your existing home, from first drawing to handover.
- FMB member
- LABC Award winner 2023
- 10-year structural warranty
LABC Award winner 2023
Building Excellence Awards, 2023
What's included
Every extension, one team
From planning drawings to the last coat of paint, one team designs, builds and finishes your extension.
Design & planning
We draw your extension, handle planning permission and party wall matters, and agree the design before any work starts.
Traditional materials
Cotswold stone, oak framing and reclaimed timber, matched to your existing house and the local vernacular.
Structural building work
Foundations, walls, roof and structural openings, built to current regulations by our own site team.
Kitchens & joinery fit-out
Bespoke joinery, kitchens and finishes completed in-house, so the extension is ready to live in at handover.
How it works
From first drawing to handover
How an extension moves from first conversation to finished room.
- 1
Initial consultation
We visit your home, discuss how you live and what the extension needs to do.
- 2
Design & planning
We prepare drawings and submit for planning permission, with party wall matters handled alongside.
- 3
Fixed-scope build
Our own site team builds the extension, in traditional materials matched to your house.
- 4
Handover
Kitchens, joinery and finishing completed, so the extension is ready to live in.
Our standing
Proof points that matter
What sets our name on the work: membership, awards and warranty, stated plainly.
10 yrStructural
10-year structural warranty
A 10-year structural warranty covers our new-build structural work, built to last.
Federation of Master Builders member
We are members of the Federation of Master Builders.
LABC Award winner 2023
Our work won the LABC Building Excellence Awards in 2023, judged on design and craftsmanship.
Common questions
Questions about house extensions
What Cotswold homeowners ask before they start.
Planning an extension?
Call 01632 960417, Mon–Fri 8am–5.30pm, or request a free quote.
Do we need planning permission for an extension in the Cotswolds?
Most extensions need planning permission, particularly in Areas of Outstanding Natural Beauty and conservation areas common across the Cotswolds. We handle the application and liaise with the planning officer on your behalf.
Will the extension match our existing stone house?
Yes. We build in Cotswold stone, oak and reclaimed timber, matched to your existing walls, roofline and window detailing so the extension reads as part of the original house.
Who manages the build, from drawings to finish?
One team. We design the extension, manage planning and party wall matters, build the structure and complete the kitchens and joinery, so you deal with one point of contact throughout.
Do you handle party wall agreements with neighbours?
Yes, we handle party wall matters alongside the planning application, before building work starts.
What areas do you cover?
We design and build extensions across the Cotswolds, working from our base in Cirencester, Gloucestershire.
What warranty applies to new-build structural work?
New-build structural work carries a 10-year structural warranty, covering the structural elements of your new build.
More from Oak & Stone
Other services we offer
One team, across every stage of your home.
New-build homes
Design-led new homes, built in stone and timber, with a 10-year structural warranty.
See new-build homes
Barn conversions
Barns converted into characterful homes, with original timber and stonework retained.
See all services
Ready to start?
Talk to us about your extension
Call Oak & Stone Builders, Mon–Fri 8am–5.30pm, or request a free quote online.
01632 960417Mon–Fri 8am–5.30pm