Outbuilding cost in B21
Outbuildings are the perfect way to add extra space to your property when you need a bit of quiet from the main house. Whether it's for a garden office, gym or workshop, an outbuilding can add value to your home and increase your quality of life.
Outbuilding costs in B21 range from the cheapest of £8960 (FIVE OAKS BUILDING LTD based in DY4) to the dearest of £10800 (TG Building Services & Son based in B71), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in B21 by posting a job with HaMuch and we will send it to extension builders.
Estimates for common extension builder jobs in B21;
| Job | Estimate |
| Underpinning a house | £17124 |
| Build a two storey extension | £87436 |
| Build a timber frame extension | £25624 |
| Install a swimming pool | £80624 |
| Cost to build a single storey extension | £42486 |
| Cost to build a side return extension | £33274 |
| Install an RSJ | £1824 |
| Build an outbuilding | £9624 |
| Build a mansard loft conversion | £51624 |
| Cost of a loft conversion | £30228 |
| Build a kitchen extension | £41624 |
| Build a hip to gable loft conversion | £41624 |
| Build a granny annexe | £86624 |
| Build a garden office | £9624 |
| Convert a garage | £15624 |
| Build a new garage | £18124 |
| Build a flat roof extension | £21624 |
| Build a dormer loft conversion | £41624 |
| Lay a concrete foundation | £5874 |
| Convert a bungalow loft | £28624 |
| Basement conversion cost | £33274 |