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Permitted Development drawings

See what you could build without a planning application.

Professional, builder-ready drawing packages for extensions, lofts, porches, garages, garden rooms and more — designed to Permitted Development parameters and supplied as sold.

A house with a glazed single storey rear extension built under Permitted Development
Permitted Development — the basics

Build more.
Without the usual
planning application.

Permitted Development rights allow certain types of work to a house without making a normal planning application — provided your project and property meet the relevant rules.

Check what you could build

No jargon. No guesswork. Understand the rules before choosing your drawings.

So, what actually is Permitted Development?

Permitted Development — usually shortened to PD — is a set of planning rights that allows certain building work to be carried out without applying for planning permission through the normal process.

That can include certain:

Single storey rear extension illustrationRear extensions
Single storey side extension illustrationSide extensions
Two storey rear extension illustrationTwo-storey extensions
Loft conversion with rear dormer illustrationLoft conversions
Front porch illustrationPorches
Detached garage and garden buildings illustrationGarages & garden buildings
Detached garden room illustrationGarden rooms
Conservatory illustrationConservatories
The important bit:

Permitted Development doesn’t mean anything goes. Each type of development has limits covering things such as size, height, position and, in some cases, materials.

Planning permission isn’t the same as Permitted Development.

Normal planning application

Your council considers the proposed development through the planning application process.

Permitted Development

The principle of the development is already granted by legislation — but only when all of the relevant limitations and conditions are satisfied.

Stay within the rules — your project may not require a normal planning application.
A house extended under Permitted Development

Three things determine what you can build.

Whether you can use Permitted Development rights depends on three key factors. All three need to be considered together.

01
Your property

House type, the original dwellinghouse, previous extensions and alterations.

02
Your location

Conservation areas, listed status, Article 4 Directions, planning conditions and other restrictions can affect PD rights.

03
Your project

Where it sits, how far it projects, its height, width, roof form and other class-specific requirements.

That’s why we start with your property — not with a generic extension.
The original dwellinghouse shown in grey with later extensions shown in green

The green doesn’t mean “automatically approved”.

It means:

“This is the type of development that may be possible under Permitted Development when the relevant rules are satisfied.”

PERMITTED HOMEOWNER GUIDES

Planning a home project?
Start with a £15 guide.

Our illustrated, practical guides help you understand the rules, explore design options and budget with confidence — before you commit to building work.

  • Porch Guide — £15 illustrated PDF guide by PERMITTED
    Porch Guide

    Rules, design options, costs and next steps.

    View guide
  • Garage Guide — £15 illustrated PDF guide by PERMITTED
    Garage Guide

    Rules, design options, costs and next steps.

    View guide
  • Garden Room Guide — £15 illustrated PDF guide by PERMITTED
    Garden Room Guide

    Rules, design options, costs and next steps.

    View guide
  • Rear Extension Guide — £15 illustrated PDF guide by PERMITTED
    Rear Extension Guide

    Rules, design options, costs and next steps.

    View guide
  • Side Extension Guide — £15 illustrated PDF guide by PERMITTED
    Side Extension Guide

    Rules, design options, costs and next steps.

    View guide
  • Conservatory Guide — £15 illustrated PDF guide by PERMITTED
    Conservatory Guide

    Rules, design options, costs and next steps.

    View guide
  • Two Storey Rear Guide — £15 illustrated PDF guide by PERMITTED
    Two Storey Rear Guide

    Rules, design options, costs and next steps.

    View guide
  • Loft Conversion Guide — £15 illustrated PDF guide by PERMITTED
    Loft Conversion Guide

    Rules, design options, costs and next steps.

    View guide
8 project-specific guidesClear, jargon-free explanations£15 off matching drawing packages

Before you rely on PD, check:

01

Is it a house?

Householder PD rights aren’t the same for flats and maisonettes.

02

Have PD rights been restricted?

Planning conditions or an Article 4 Direction can remove rights that would otherwise exist.

03

Has the house already been extended?

Previous development can affect what’s left available, particularly where rules refer to the original dwellinghouse.

04

Is the property or area specially protected?

Listed buildings and designated land can introduce additional restrictions.

Not sure?

YPDS can review your property and advise on what may be possible.

Get expert advice

Know what you want
to build?

We’ll help you understand the relevant PD limits, configure the design and select the construction drawing package for your property.

Start with your property Explore the PD rules

How it works
01Enter your
postcode
02See what you
can build
03Configure
your design
04Get your
drawings

Permitted Development rights described on this page apply to houses in England under the Town and Country Planning (General Permitted Development) (England) Order 2015. Different planning rules apply in Scotland, Wales and Northern Ireland. This page is general guidance, not a formal planning determination — always check your own property and, where you need certainty, apply to your local planning authority for a Lawful Development Certificate.

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.