Add more space and boost your property’s value with bespoke house extensions in London, delivered by experienced specialists offering tailored build solutions and expert project management.

EXPERT INSIGHTS

London House Extension Knowledge Base

Comprehensive, research-backed guides on planning laws, 2026 build costs per m², permitted development, and party wall legislation in London.

Planning Permission in London for Extensions and Renovations
Planning & Regulations
By London Planning Team • 7 min read

Planning Permission vs Permitted Development for London Extensions

Learn the exact rules for 3m, 6m, and 8m rear extensions, Article 4 directions in conservation areas, and Lawful Development Certificates.

House Extension Costs London
Costs & Budgeting
By Quantity Surveyor Team • 8 min read

House Extension Costs in London: 2026 Budget Planning & Cost Breakdown

Detailed cost analysis covering single-storey vs double-storey extensions, steel beam prices, groundworks, fit-outs, and contingency budgets.

Party Wall Agreements London
Legal & Compliance
By Party Wall Surveyor Team • 6 min read

Party Wall Agreements in London: When You Need One & Timeline

Step-by-step guide to the Party Wall etc. Act 1996, serving Section 2 notices, schedules of condition, and managing neighbour consents cleanly.