Practical guidance on Permitted Development and householder projects in England — what the rules allow, what they limit, and what it means for your drawings.
Start with the PD guideOur detailed guidance pages, organised by the kind of project you are planning.
Permitted Development rulesThe limits that apply to each type of householder project.View articles 
ExtensionsSingle storey rear, side and two storey rear extensions.View articles 
Lofts and roofsLoft conversions, dormers and roof alterations.View articles 
Garden buildingsOutbuildings, garden rooms and garages.View articles 
Around the housePorches, conservatories, windows and doors.View articles 
Boundaries and outsideFences, walls, gates, patios and driveways.View articles From our Permitted Development and planning article library.
Outbuildings must stay under 4m ridge height, 2.5m eaves, and 3m if flat-roofed. Every height and size limit explained — including the 2m boundary rule.
Garden rooms are usually permitted development under Part 1, Class E — but size, height and position all matter. Here are the full rules and when you need planning permission.
A hip-to-gable loft conversion is usually permitted development on detached and semi-detached houses. Learn the PD rules, volume limits, and typical costs for 2025.
Most kitchen extensions are permitted development under the 4m/3m rule. Roof options, bifold doors, the 8m scheme, and typical costs explained.
Basement extensions usually need planning permission. Converting an existing cellar may not. Rules, London policies, Party Wall Act, and typical costs.
Wraparound extensions combine rear and side extensions in an L-shape. Most need planning permission. When they can be PD and how to get them approved.
PERMITTED HOMEOWNER GUIDES
Our illustrated, practical guides help you understand the rules, explore design options and budget with confidence — before you commit to building work.
Explore all guides
Rules, design options, costs and next steps.
View guide
Rules, design options, costs and next steps.
View guide
Rules, design options, costs and next steps.
View guide
Rules, design options, costs and next steps.
View guide
Rules, design options, costs and next steps.
View guide
Rules, design options, costs and next steps.
View guide
Rules, design options, costs and next steps.
View guide
Rules, design options, costs and next steps.
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Maximize your property’s footprint with precision and ease. Permitted provides complete design for Permitted Development Rights. Our packages are designed around the Permitted Development limits, so many projects can proceed without a full planning application.
PERMITTED is operated by Yorkshire Property Design Services Limited, registered in England and Wales under company number 12698267.
Registered office: Ground Floor, Techno Centre, Station Road, Horsforth, Leeds, LS18 5BJ
Business contact address: Wira House, Ground Floor, Suite 5, Ring Road, West Park, Leeds, LS16 6EB
