Planning guides

Plain English answers to UK planning questions.

Plain English planning guides for homeowners, estate agents, solicitors, planning consultants, architects and buying agents. Jump to the section you need — or use a search engine to find the specific guide you're looking for.

Enforcement & appeals Do I need permission?Planning process Estate agents Planning consultants Solicitors Architects Buying agents

Enforcement notices & appeals

Received a planning enforcement notice? What to do in the next 30 days

The 28-day appeal window, the seven grounds of appeal, evidence you need, and the steps that keep your options open.

The 10-year rule — how continuous use is proved, and why most people get it wrong

Why the 10-year rule is an evidence problem, not a legal one — and the documents that win CLEUD applications.

Lawful Development Certificates — when you need one and how to get it

CLUD vs CLEUD, when to apply, the evidence required for a 10-year CLEUD, and why not applying is the most common mistake.

How to appeal a planning refusal

Step-by-step guide to the Planning Inspectorate appeal process.

How to write a planning appeal statement

What to include, what to avoid, and how to frame your argument.

How long does a planning appeal take in England?

Realistic timelines for householder and full planning appeals.

What is the planning appeal success rate in England?

The data on how often appeals succeed and what affects your chances.

What is the Planning Inspectorate?

Who they are, what they do, and how they handle your appeal.

The 4-year rule is abolished — what changed in April 2024

The 4-year rule was abolished on 25 April 2024. The transitional provisions still apply to breaches before that date — here is what it means now.

Do I need planning permission?

Homeowner guide

Permitted development — what can you build without planning permission?

The complete guide to permitted development rights in England — extensions, outbuildings, loft conversions, and when rights are removed.

Homeowner guide

Conservation areas — what they mean for your home

What permitted development rights are removed in conservation areas, the highway visibility test, and how Article 4 Directions stack.

Homeowner guide

Article 4 directions — what they are and how to check

How Article 4 Directions remove permitted development rights, the HMO investment trap, and how to find out if your property is affected.

Homeowner guide

Do I need planning permission for a rear extension?

Standard PD limits, the larger home extension prior approval scheme, and the original house measurement trap.

Homeowner guide

Do I need planning permission for a side extension?

Single storey vs two storey rules, the half-width calculation, and why the conservation area rule trips people up.

Homeowner guide

Do I need planning permission for a loft conversion or dormer?

Rear dormers vs front dormers, hip-to-gable conversions, volume limits, and the side window obscure glazing condition.

Homeowner guide

Do I need planning permission for a garage conversion?

Most garage conversions are permitted development. The ones that go wrong are caught by conditions most owners never knew existed.

Homeowner guide

Do I need planning permission for a granny annexe?

The ancillary vs separate dwelling distinction that determines whether you need planning permission — and the conditions trap on new-build estates.

Homeowner guide

Do I need planning permission for a garden room or home office?

Permitted development limits for garden rooms, the 50% rule suppliers don't always explain, and why conditions from previous permissions matter.

Homeowner guide

Do I need planning permission for an outbuilding or shed?

Class E permitted development limits, the flat-roof height trap, 50% coverage, and what incidental use actually means.

Homeowner guide

Do I need planning permission for a log cabin or summerhouse?

The mono-pitch roof trap, the 2-metre boundary rule, and why the 50% garden coverage limit catches more projects than suppliers let on.

Homeowner guide

Do I need planning permission for a swimming pool?

When garden pools need planning permission, the pool house and 50% coverage trap, and conservation area rules.

Homeowner guide

Do I need planning permission for decking?

The 30cm height rule, sloping gardens, and why decking attached to a garden room has different rules.

Homeowner guide

Do I need planning permission for solar panels?

Solar panels are permitted development in most cases. Conservation areas and listed buildings are where people get caught.

Homeowner guide

Do I need planning permission for cladding?

Outside a conservation area: usually no. Inside one: almost certainly yes. The conservation area boundary trap and material conditions.

Homeowner guide

Do I need planning permission to render my house?

Rendering is permitted development outside conservation areas. Inside one, it almost always requires a planning application.

Homeowner guide

Do I need planning permission for new windows or doors?

Conservation area window replacement rules, why like-for-like replacement still needs permission in conservation areas, and conditions on previous permissions.

Homeowner guide

Do I need planning permission for a fence or wall?

The 1-metre and 2-metre height rules, what counts as a highway, and why estate conditions catch so many homeowners out.

Homeowner guide

Do I need planning permission for a dropped kerb or driveway?

Highway authority consent vs planning permission — the two approvals most people conflate, and the impermeable surface rule.

Homeowner guide

Do I need planning permission for a satellite dish?

Why front-facing dishes usually need planning permission, the two-dish limit, and conservation area rules.

Homeowner guide

Do I need planning permission for a basement conversion?

Converting an existing basement vs excavating a new one — completely different planning rules, regularly confused.

Homeowner guide

Do I need planning permission to split a house into flats?

Class L permitted development for two flats, the three-flat threshold, and the enforcement risk that catches property buyers.

Homeowner guide

Do I need planning permission for an HMO?

C3 to C4 use class permitted development, Article 4 directions removing that right, and how to check your area.

Homeowner guide

Barn conversion planning permission — Class Q and the prior approval route

Class Q is the permitted development route for converting agricultural buildings to houses. The agricultural history of the building is the critical factor.

Homeowner guide

Listed building consent — what works require it and the criminal offence trap

Works to a listed building without consent are a criminal offence with no maximum fine. Ignorance is not a defence. Here is what requires consent.

Homeowner guide

Green Belt development — what very special circumstances means in practice

Development in the Green Belt is refused by default. The only route to permission is demonstrating very special circumstances. Here is what that actually means.

Homeowner guide

National Park planning rules — how permitted development is restricted

Permitted development rights are significantly restricted in National Parks. Works automatic elsewhere require planning permission inside a National Park boundary.

Homeowner guide

Flood zone planning restrictions — what each zone means for development and purchase

New dwellings in Flood Zone 3 face a strong presumption against permission. The sequential test, exception test, and what a Flood Risk Assessment covers.

Planning process & applications

Planning process

What does "contrary to Policy DM1" mean?

The most common refusal reason in England — decoded.

Planning process

What does "harmful to character and appearance of the area" mean?

The design-based refusal reason and how to overcome it.

Planning process

My planning application was refused — what next?

Your options after a refusal: resubmit, appeal, or amend.

Planning process

What are planning conditions and do I have to follow them?

Every condition on your approval explained in plain English.

Planning process

What is a condition precedent in planning?

The conditions you must discharge before you break ground — explained.

Planning process

Can neighbour objections stop my planning application?

The truth about how much weight objections actually carry.

Planning process

Householder planning application: complete guide

Everything you need to know before submitting for an extension or loft.

Planning process

Do I need planning permission for a rear extension?

When permitted development applies and when you need full permission.

Planning process

Loft conversion: when do you need planning permission?

Permitted development rules vs full application requirements.

Planning process

Change of use: when do you need planning permission?

Use class changes, permitted development, and full application requirements.

Planning process

Planning application fees in England — current rates

Current planning fees after the December 2023 increase — householder, LDC, new dwellings, change of use, exemptions, and the free go.

Planning process

Community Infrastructure Levy (CIL) — what it is and who pays

CIL liability, self-build relief, the commencement trap that costs people thousands, and how to find out if your site is liable.

Planning process

Section 106 agreements — what they are and what they mean for buyers

Planning obligations that run with the land, rural exception site restrictions, unspent financial contributions, and what the planning record reveals.

Planning process

Planning glossary — plain English A-Z of planning terms

Definitions of every term you'll encounter in planning applications, decision notices, enforcement notices, and appeal decisions.

Planning process

Building regulations approval — when you need it and how it relates to planning

Planning permission and building regulations are two separate approvals. You can need one without the other. Confusing them is a common and expensive mistake.

Planning process

Planning use classes explained — Class E, C3, C4, B2 and what they mean

Use classes determine whether you need permission for a change of use. Class E, C3, C4, B8, Sui Generis — explained in plain English.

Planning process

Pre-application advice — when it is worth paying for and what it actually means

Pre-application advice is informal and not binding. Here is when to use it, what it costs, and what the planning record should tell you first.

Planning process

How to discharge planning conditions — the process and the conditions precedent trap

Starting work before discharging a condition precedent can invalidate your entire permission. Here is the process and what to check first.

Planning process

Extant planning permission — how to keep your permission alive

Planning permissions expire if development does not commence within three years. What counts as a lawful material start — and what does not.

Planning process

How to object to your neighbour planning application — what works and what does not

Only material planning grounds carry weight. Personal disputes, views, and property values do not count. Here is what an effective objection must contain.

For estate agents

Estate agent guide

Planning history checks before listing a property

What estate agents need to know about withdrawn applications, enforcement notices and title constraints — and why finding them first changes your valuation pitch.

Estate agent guide

Enforcement notices and property sales — a guide for estate agents

How enforcement notices affect rural property sales, why they miss standard searches, and how to identify them before they emerge at exchange.

Estate agent guide

Agricultural occupancy conditions — what estate agents need to know

How to identify AOCs when selling farming property, what they mean for buyers, and how they affect value and marketability.

Estate agent guide

AONB planning restrictions — what rural estate agents need to know

AONB planning policy, portal access restrictions in protected areas, and the title constraints that standard searches miss on AONB properties.

Estate agent guide

Withdrawn planning applications — what they reveal and why they matter

Why withdrawn applications are the most revealing part of the planning record — and why standard portal searches miss them entirely.

Estate agent guide

Pre-listing planning intelligence — win more rural instructions

How estate agents use planning intelligence to win premium rural instructions, set accurate vendor expectations, and avoid late-stage sale collapses.

For planning consultants

Planning consultant

How to find withdrawn planning applications

What portals don't show you — and why withdrawn applications are often the most revealing intelligence on any site.

Planning consultant

Planning cluster analysis — how comparable decisions affect your site appraisal

How to find and use local comparable decisions — approved, refused and withdrawn — to build a precedent argument.

Planning consultant

How to access planning committee minutes and officer reports

The richest source of planning intelligence available — and why it's almost entirely inaccessible via standard searches.

Planning consultant

Committee minutes and officer reports — what they reveal and why searches miss them

Decision notices give you the outcome. Officer reports give you the reasoning. We retrieve both — and show you how the authority actually applies the policies it publishes.

Planning consultant

Using postcode cluster data in your pre-application strategy

The evidence that changes LPA meetings — approved exceptions, withdrawn challenges, officer reasoning patterns that your portal search cannot return.

Planning consultant

Green Belt and AONB development cases — the intelligence you need before you advise

The withdrawn applications, officer wording and comparable decisions that shape defensible advice on Green Belt and AONB development cases.

For solicitors & conveyancers

Solicitor guide

What conveyancing searches miss — the planning history gap

Your CON29 checks the land register. It doesn't check what was withdrawn from the planning portal four years ago.

Solicitor guide

CLEUD and lawful use certificates — the pre-exchange risk solicitors overlook

Unresolved Certificates of Lawful Use are largely invisible to standard search packs — and the seller may have known for years.

Solicitor guide

Planning due diligence for rural property transactions

The key checks for barn conversions, agricultural dwellings, AONB land and coastal plots — before your client exchanges.

Solicitor guide

Green Belt properties and planning risk at exchange

The enforcement risks, occupancy restrictions and pre-merger enforcement gaps that standard searches miss on Green Belt property transactions.

Solicitor guide

Planning conditions that bind future owners — what to find before exchange

Occupancy conditions, pre-commencement requirements, s106 obligations — how they run with the land and what standard searches do not reliably surface.

Solicitor guide

Coastal property planning risks — what solicitors need to check before exchange

Split-agency registers, CCMA designations, National Park boundary gaps, and the planning history that CON29 cannot reach on coastal and shoreline properties.

For architects & architectural practices

Architect guide

Planning intelligence for architects at the pre-application stage

What to retrieve before a pre-application meeting — comparable precedent, enforcement history, conservation constraints and what the planning record reveals before you draw a line.

Architect guide

Comparable decisions and how architects use them in planning

How architects find and use comparable planning decisions — approved, refused and withdrawn — to build a precedent argument before pre-application or application stage.

Architect guide

Conservation areas — what architects need to know before designing

How conservation area designation affects design briefs, what the planning record reveals about how a specific LPA interprets character and appearance, and why comparables matter before pre-application.

Architect guide

AONB and Article 4 constraints — what architects need to know before advising

How AONB designation and Article 4 Directions affect development proposals, what planning intelligence reveals about how LPAs apply policy on protected land.

For buying agents & acquisition advisors

Buying agent guide

Planning due diligence for buying agents — what to check before advising

The specific planning history checks that matter on rural, AONB and country house acquisitions — and why standard searches do not reliably surface the risks that most affect acquisition value.

Buying agent guide

Agricultural occupancy conditions — what buying agents need to know

How to identify AOCs before your client commits, what they mean for value and mortgageability, and when the breach history changes the acquisition decision.

Buying agent guide

Planning history checks on country house and rural property acquisitions

What the planning record reveals on high-value rural acquisitions that standard conveyancing searches miss — and why buying agents need to check before advising.

Buying agent guide

Enforcement history and rural property acquisitions — a guide for buying agents

How planning enforcement history affects rural property acquisitions, why standard searches miss pre-merger records, and how to use enforcement history in acquisition negotiations.

Buying agent guide

What CON29 misses on high-value rural property purchases

The specific planning history gaps that standard conveyancing searches cannot reach on rural, AONB and country house acquisitions — withdrawn applications, pre-merger records, portal-blocked history and title constraints.

Buying agent guide

Class Q barn conversion risk for buying agents — verifying the development story

How to verify barn conversion development potential before advising clients to commit — Class Q eligibility, Article 4 Directions, agricultural history and what the planning record reveals.

Buying agent guide

Green Belt and AONB acquisition due diligence for buying agents

Development constraints, enforcement history, designation boundaries and comparable planning decisions on Green Belt and AONB acquisitions — what to check before your client commits.

Buying agent guide

Title constraints on country house acquisitions — what buying agents need to find before exchange

Restrictive covenants, overage clauses, Secretary of State conditions, ransom strips and National Trust burdens on country house acquisitions — where they hide and how to find them.