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.
The Larger Home Extension Scheme allows single-storey rear extensions up to 8m (detached) or 6m with neighbour notification. How the process works and what neighbours can object to.
Two-storey rear extensions always need planning permission — they are not permitted development. How the application works, the 45-degree rule, and design considerations.
Land can be used for events, festivals, film shoots and markets for up to 28 days per year without planning permission under Part 4 Class B.
The use classes system determines when a change of use needs planning permission. Complete guide to Class E, residential classes, and sui generis uses.
Converting an office to flats uses Class MA since 2021. Learn the Prior Approval process, Article 4 Direction exclusions, and how it replaced Class O.
Part 20 permits one or two additional storeys on houses and commercial buildings with Prior Approval. How Class AA, Class A, and the commercial classes work.
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
