Extension builder estimates (based on hourly rates) to build a single storey extension in Covent Garden
Range from the cheapest single storey extension £46960 (HouseUP based in WC2H) to the dearest single storey extension £48880 (ORO Projects based in WC2H).
Comparing extension builders estimates for fitting a downstairs toilet gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to build a single storey extension in Covent Garden by posting a job with HaMuch and we will send it to extension builders in Covent Garden.
Estimates for common extension builder jobs in Covent Garden;
| Job | Estimate |
| Underpinning a house | £17407 |
| Build a two storey extension | £87860 |
| Build a timber frame extension | £25907 |
| Install a swimming pool | £80907 |
| Cost to build a single storey extension | £48138 |
| Cost to build a side return extension | £36452 |
| Install an RSJ | £2107 |
| Build an outbuilding | £9907 |
| Build a mansard loft conversion | £51907 |
| Cost of a loft conversion | £32877 |
| Build a kitchen extension | £41907 |
| Build a hip to gable loft conversion | £41907 |
| Build a granny annexe | £86907 |
| Build a garden office | £9907 |
| Convert a garage | £15907 |
| Build a new garage | £18407 |
| Build a flat roof extension | £21907 |
| Build a dormer loft conversion | £41907 |
| Lay a concrete foundation | £6157 |
| Convert a bungalow loft | £28907 |
| Basement conversion cost | £36452 |