Range from the cheapest single storey extension £39,000 (Andy's carpets & Vinyl services based in HP12) to the dearest single storey extension £71,000 (Bantry Construction Limited based in HP10).
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 Wycombe by posting a job with HaMuch and we will send it to extension builders in Wycombe.

"Single storey extension"
HIGH WYCOMBE
"Single storey extension side extention with bathroom and two velux windows 5mx3.2m single story rear extention for dinner 2.6m x 3.5 m "
HP11
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Single Storey Extension near Wycombe | £34 | £234 |
| Single Storey Extension near High Wycombe | £34 | £237 |
| Single Storey Extension near Hazlemere | £34 | £235 |
| Single Storey Extension near Maidenhead | £36 | £236 |
| Single Storey Extension near Chesham | £36 | £237 |
| Single Storey Extension near Gerrards Cross | £37 | £244 |
| Single Storey Extension near South Oxfordshire | £32 | £229 |
| Single Storey Extension near Aylesbury | £36 | £236 |
| Single Storey Extension near Slough | £36 | £238 |
| Single Storey Extension near Caversham | £33 | £229 |