Home Improvement Planning Tools
Everything you need to plan a home improvement project with confidence — cost guides, planning permission information, project checklists and free quotes from vetted local builders.
How Much Will Your Project Cost?
Real price data across 519 UK towns — not national averages. Each guide includes per-type breakdowns, worked examples and a free quote tool.
Per m² rates, regional pricing, worked budgets, planning overview.
All 4 conversion types, headroom guide, suitability by property type.
Per linear metre rates, supply-vs-fit guide, all spec levels.
All bathroom types, wet room guide, worked cost examples.
Cost guides for roofing and driveways coming soon. Roofing prices and driveway prices are available on the service pages.
Planning Permission & Regulations
Understanding planning requirements before you start can save months of delay and thousands in abortive costs.
Permitted Development, full planning, conservation areas, listed buildings — what needs permission and what doesn't.
The government's official planning portal — check if your project needs permission and apply online.
GOV.UK guidance on Building Regulations approval — required for all extensions, loft conversions and structural work.
Before You Start Any Building Project
✅ Getting Quotes — What to Have Ready
✅ Checking a Builder — Before You Hire
Find Vetted Builders in Your Town
Every builder in the BestBuilders network has been verified for insurance, qualifications and genuine customer reviews.