Blog

Realistic contingency percentages, what actually drives up costs, staged payment schedules, snagging, and why the cheapest quote can be the costliest.

Full plans versus building notice, mandatory inspections, completion certificates, and the real risks of skipping approval on an extension.

The size limits for extensions, lofts and outbuildings under permitted development, and when a lawful development certificate is worth getting.

Checking FMB and TrustMark credentials, getting quotes and references, insurance minimums, and staged payments that avoid rogue-trader risk.

Rooflight, dormer, hip-to-gable and mansard conversions compared by cost and structural work, plus building regulations and party wall basics.

A practical breakdown of single and double-storey extension prices per square metre, VAT, professional fees, and how much region changes the total.