Cost of a two storey extension in Dorchester
A two storey extension is a great way to add extra space to your home, adding value to your property. But how much does it cost to build a double storey extension in Dorchester?
Costs range from £86800 (Poundbury Build and Maintenance based in DT1) to £89896 (Ashlar Historic Building Repairs based in DT6), but these are just estimates. The best way to compare costs is to get real quotes from real builders.
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Estimates for common extension builder jobs in Dorchester;
| Job | Estimate |
| Underpinning a house | £17333 |
| Build a two storey extension | £87749 |
| Build a timber frame extension | £25833 |
| Install a swimming pool | £80833 |
| Cost to build a single storey extension | £46659 |
| Cost to build a side return extension | £35621 |
| Install an RSJ | £2033 |
| Build an outbuilding | £9833 |
| Build a mansard loft conversion | £51833 |
| Cost of a loft conversion | £32184 |
| Build a kitchen extension | £41833 |
| Build a hip to gable loft conversion | £41833 |
| Build a granny annexe | £86833 |
| Build a garden office | £9833 |
| Convert a garage | £15833 |
| Build a new garage | £18333 |
| Build a flat roof extension | £21833 |
| Build a dormer loft conversion | £41833 |
| Lay a concrete foundation | £6083 |
| Convert a bungalow loft | £28833 |
| Basement conversion cost | £35621 |