Practical, London-specific guidance on extensions, costs, and planning. Written by architects with real project data.
Everything you need to know about building without planning permission in London. Borough-specific rules, Article 4 directions, and instant PD checker.
Actual extension costs from 5,000+ London projects. Ground floor, loft, side return costs by borough with free calculator.
Everything about side return extensions in London. Average costs £55k-85k, planning vs PD, kitchen integration, and real examples.
Complete guide to loft conversions in London. Dormer, hip-to-gable, mansard costs. Building regulations, planning permission, and timeline.
Single and two-storey rear extensions in London. Costs, PD limits, design options, and planning requirements with real project data.
Extension options for London terraced houses. PD limits, party walls, side returns, wrap-around extensions, and cost breakdowns.
Building in conservation areas. Restricted PD rights, planning requirements, materials, costs, and getting approval in 600+ London areas.
Complete guide to building regs for extensions. Structural, fire safety, insulation, ventilation requirements. Costs and inspection stages.
Everything about Party Wall Act. When required, the process, costs (£700-1,500 per side), timeline, and handling neighbour disputes.
Two-storey extension guide. Costs £130k-150k, planning permission, design considerations, structural requirements, and timeline.
Extension options for semi-detached houses. PD limits, rear and side extensions, loft conversions, costs, and one-side party walls.
Kitchen extension guide. Open-plan layouts, bi-fold doors, lighting, costs £75k-120k. Rear, side return, and wrap-around options.
Complete extension timeline from design to completion. 6-12 months typical. Planning, building regs, party wall, construction stages.
Honest comparison of traditional architects vs online services like Multiply. Costs, design quality, when to use each approach.
Get an instant cost estimate with our free calculator, or check if you need planning permission.