Extensions cost in Durham
2026 prices for County Durham · North East
Extensions in Durham typically costs between £27,000 and £108,000, with most homeowners landing near £67,500. Local pricing sits about 10% below the UK average. Consistently the lowest labour rates in England, with a high proportion of pre-1945 terraced stock.
£27,000 – £108,000
UK average £2,200 per m² · Durham index 90
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Extensions prices in Durham by finish level
| FINISH LEVEL | DURHAM COST | WHAT'S INCLUDED |
|---|---|---|
| Budget | £27,000 – £40,500 | Entry-level materials, existing layout retained |
| Mid-range | £39,000 – £58,500 | Better fittings, some layout change |
| Premium | £52,500 – £79,000 | High-specification materials and full redesign |
£37,125
About 55% of a typical Durham job, at North East day rates.
£30,375
Materials pricing is broadly national — this is where specification, not location, drives your total.
What affects extensions cost in Durham
A World Heritage core with tight conservation control, surrounded by former pit-village terraces. Student HMO conversions make up a large share of local renovation work.
- Drainage runs needing diversion
- Party wall agreements with neighbours
- Poor ground conditions requiring deeper foundations
Rules in Durham
Building control and planning applications for extensions work in Durham go through Durham County Council. Confirm before booking whether your property sits in a conservation area, is listed, or is covered by an Article 4 direction — each removes permitted development rights and changes the approval route.
Serving DH1, DH6, DH7 and the surrounding County Durham area.
Find vetted trades near DurhamExtensions in Durham: common questions
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