Written by Sam JonesReviewed by UK Planning Guide Editorial ReviewLast reviewed 11 April 2026Source basis The national planning baseline, planning-permission routes, local-authority friction points and the official sources worth checking next.Verify if Stop relying on the broad route alone when the design is borderline, locally sensitive or already drifting toward a formal application strategy.
Planning topic hub

Planning Permission

Use this hub when the real question is whether planning permission is needed, what usually changes the answer, and which local page or project guide to open next.

Choose the project type first

Project Types People Usually Pair With This Topic

Project hub

Agricultural Building

Browse guidance on planning permission for agricultural building projects, then move into the local pages if needed.

Open project hub
Project hub

Annexe

Browse guidance on planning permission for annexe projects, then move into the local pages if needed.

Open project hub
Project hub

Basement Conversion

Browse guidance on planning permission for basement conversion projects, then move into the local pages if needed.

Open project hub
Project hub

Change of Use

Browse guidance on planning permission for change of use projects, then move into the local pages if needed.

Open project hub
Project hub

Demolition

Browse guidance on planning permission for demolition projects, then move into the local pages if needed.

Open project hub
Project hub

Dormer Extension

Browse guidance on planning permission for dormer extension projects, then move into the local pages if needed.

Open project hub
Project hub

Driveway

Browse guidance on planning permission for driveway projects, then move into the local pages if needed.

Open project hub
Project hub

Dropped Kerb

Browse guidance on planning permission for dropped kerb projects, then move into the local pages if needed.

Open project hub
Project hub

Fences and Walls

Browse guidance on planning permission for fences and walls projects, then move into the local pages if needed.

Open project hub
Project hub

Garage Conversion

Browse guidance on planning permission for garage conversion projects, then move into the local pages if needed.

Open project hub
Project hub

Garage

Browse guidance on planning permission for garage projects, then move into the local pages if needed.

Open project hub
Project hub

Garden Room

Browse guidance on planning permission for garden room projects, then move into the local pages if needed.

Open project hub
Project hub

Hard Surfacing

Browse guidance on planning permission for hard surfacing projects, then move into the local pages if needed.

Open project hub
Project hub

Heat Pump

Browse guidance on planning permission for heat pump projects, then move into the local pages if needed.

Open project hub
Project hub

HMO

Browse guidance on planning permission for hmo projects, then move into the local pages if needed.

Open project hub
Project hub

House Extension

Browse guidance on planning permission for house extension projects, then move into the local pages if needed.

Open project hub
Project hub

Loft Conversion

Browse guidance on planning permission for loft conversion projects, then move into the local pages if needed.

Open project hub
Project hub

Outbuildings

Browse guidance on planning permission for outbuildings projects, then move into the local pages if needed.

Open project hub
Project hub

Porch

Browse guidance on planning permission for porch projects, then move into the local pages if needed.

Open project hub
Project hub

Rear Extension

Browse guidance on planning permission for rear extension projects, then move into the local pages if needed.

Open project hub
Project hub

Rooflight

Browse guidance on planning permission for rooflight projects, then move into the local pages if needed.

Open project hub
Project hub

Side Extension

Browse guidance on planning permission for side extension projects, then move into the local pages if needed.

Open project hub
Project hub

Single Storey Extension

Browse guidance on planning permission for single storey extension projects, then move into the local pages if needed.

Open project hub
Project hub

Solar Panels

Browse guidance on planning permission for solar panels projects, then move into the local pages if needed.

Open project hub
Project hub

Temporary Building

Browse guidance on planning permission for temporary building projects, then move into the local pages if needed.

Open project hub
Project hub

Two Storey Extension

Browse guidance on planning permission for two storey extension projects, then move into the local pages if needed.

Open project hub
Project hub

Windows and Doors

Browse guidance on planning permission for windows and doors projects, then move into the local pages if needed.

Open project hub
Project hub

Wraparound Extension

Browse guidance on planning permission for wraparound extension projects, then move into the local pages if needed.

Open project hub
Answer-first explanation

What This Topic Usually Changes

What usually applies

This topic usually decides whether a project still looks like a simpler permitted-development case or whether a formal application should be treated as the safer baseline.

What often complicates it

Local designations, site history, measured drawings and the exact project shape often matter more than people expect once this topic is in play.

Best next step

Open the matching project type first, then use the local example pages to see where this topic actually changes the route in practice.

Common use cases

Where Planning Permission Usually Shows Up

See it locally

Example Local Rule Pages

Local guide

Agricultural Building in Bedford

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Local guide

Agricultural Building in Central Bedfordshire

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Local guide

Agricultural Building in Luton

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Local guide

Agricultural Building in Bracknell Forest

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Local guide

Agricultural Building in Reading

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Local guide

Agricultural Building in Slough

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Local guide

Agricultural Building in West Berkshire

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Local guide

Agricultural Building in Windsor and Maidenhead

Open the main local guide, then use the tool and local planning context to see how planning permission may change the answer on the ground.

Open local guide
Method and legal context

Planning Permission In The Wider Planning Picture

This topic is shaped by national planning legislation, permitted development rights and local authority interpretation where protected areas or policy constraints apply.

Checking both the national baseline and the local council context gives a more reliable view of whether a project can proceed as planned.

Trust and caveats

How To Use A Topic Hub Properly

Topic hubs exist to isolate the one planning issue that is blocking progress. They are most useful when paired with the matching project guide and the relevant local authority page.

Updated April 2026