Thornbury designs and builds a small number of custom homes each year, working closely with each family from the first site walk to the last coat of oil on the floors.
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We start with the light, the trees and the slope of the ground, then design a house that belongs to them. Every detail is drawn before it is built, and every builder on site has seen the drawing.
Design and construction under one roof, so nothing gets lost between the architect and the crew.
We limit how many homes we build at once so our people are on your site, not spread thin.
Timber, stone, steel and lime plaster, chosen to age well rather than look new forever.




We walk the land with you, listen to how you live, and write a clear brief together.
Sketches, models and full drawings, with costs checked at every stage.
Our own carpenters lead the work, with weekly site visits and plain-language updates.
A walk-through, a care guide for every material, and a visit back after the first season.



Share a little about the site and what you hope to build. We'll reply with next steps and a time to walk it together.
No. Many clients come to us while choosing a site, and we're happy to walk a few with you before you decide.
Design and approvals often take several months, and construction follows. We'll give you a realistic schedule once we understand the site and brief.
Yes. We regularly build from other architects' drawings and bring our construction knowledge in early.
We price the project in stages and check the numbers at every design milestone, so there are no surprises when building starts.
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