Cost to Build a Single Storey Extension in Harpenden

Single storey extension cost in Harpenden - Sort by rates or availability

Extension builder estimates (based on hourly rates) to build a single storey extension in Harpenden

Estimates for single storey extension near Harpenden

"Single storey extension" - AL4, job posted 09/09/26

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Location in UK	Hourly Rate	Daily Rate
Single Storey Extension near Harpenden	£86	£316
Single Storey Extension near St Albans	£63	£289
Single Storey Extension near Luton	£41	£278
Single Storey Extension near Hatfield	£64	£284
Single Storey Extension near Hemel Hempstead	£42	£270
Single Storey Extension near Welwyn Garden City	£42	£268
Single Storey Extension near Dacorum	£42	£269
Single Storey Extension near Hitchin	£43	£283
Single Storey Extension near Dunstable	£41	£272
Single Storey Extension near Stevenage	£44	£282

Estimates for common extension builder jobs in Harpenden;

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.