Cost to build an outbuilding in Welwyn

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Outbuilding cost in Welwyn

Outbuilding costs in Welwyn range from the cheapest of £9,920 (MA Gower based in AL6) to the dearest of £10,536 (R. Newman Construction based in AL4), 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 Welwyn by posting a job with HaMuch and we will send it to extension builders.

"Outbuilding" - SG2, job posted 06/01/26

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Location in UK	Hourly Rate	Daily Rate
Outbuilding near Welwyn Garden City	£42	£269
Outbuilding near Hertford	£46	£290
Outbuilding near Hatfield	£42	£266
Outbuilding near Stevenage	£44	£282
Outbuilding near Harpenden	£45	£282
Outbuilding near Hitchin	£43	£283
Outbuilding near East Hertfordshire	£44	£289
Outbuilding near Ware	£47	£296
Outbuilding near St Albans	£43	£272
Outbuilding near North Hertfordshire	£44	£283

Estimates for common extension builder jobs in Welwyn;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.