Range from the cheapest single storey extension £51,320 (PDL Property Solutions based in SM7) to the dearest single storey extension £55,000 (CONSTRUCTION EXPRESS based in SM7).
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 Banstead by posting a job with HaMuch and we will send it to extension builders in Banstead.

"Single storey extension"
WORCESTER
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Epsom | £37 | £236 |
| Single Storey Extension near Reigate & Banstead | £36 | £235 |
| Single Storey Extension near Tadworth | £36 | £234 |
| Single Storey Extension near Ewell | £37 | £235 |
| Single Storey Extension near Sutton | £37 | £234 |
| Single Storey Extension near Merton | £38 | £236 |
| Single Storey Extension near Caterham | £37 | £235 |
| Single Storey Extension near Reigate | £36 | £238 |
| Single Storey Extension near Redhill | £36 | £236 |
| Single Storey Extension near Croydon | £37 | £233 |