PropeteerProperty intelligence

Planning guide

How to assess planning-permission likelihood

Planning likelihood should be expressed as an evidence-based range or confidence statement, not a guarantee. It should combine the actual proposal, site constraints, local policy and genuinely similar decided cases.

Written and reviewed by Propeteer Research TeamPublished Reviewed

At a glance

Key facts

Not a prediction from
Postcode or keywords alone
Decided evidence
Exclude pending and withdrawn cases from success rates
Critical context
Design, neighbours, heritage and policy

A reliable process

How to approach the question.

  1. 01Translate the description into the likely development type, dimensions and impacts.
  2. 02Check designations and constraints that could change the route.
  3. 03Review similar approvals, conditions and refusals with readable documents.
  4. 04State the evidence strength, unresolved questions and design changes that may improve the case.

Worked example

A new window facing a neighbour

Even if the user does not use the word “overlooking”, the analysis should infer privacy impact, inspect local conditions requiring obscure glazing or restricted opening and surface the risk. Semantic meaning matters more than an exact keyword match.

What this does not prove

  • Only the planning authority can determine an application.
  • Drawings and dimensions can materially change the assessment.
  • Incomplete document coverage should reduce confidence.

Method used

  • Confirm the subject property and distinguish applications at the address from wider local context.
  • Classify proposal type and outcome consistently, keeping pending, withdrawn and approved-with-conditions cases separate.
  • Give more weight to recent, similar and well-documented decisions; retain contradictory evidence rather than hiding it.

Primary sources and official guidance

National Planning Practice GuidanceDepartment for Levelling Up, Housing and CommunitiesLocal planning authority registersUK local planning authoritiesPlanning DataDepartment for Levelling Up, Housing and Communities

Source scope, licensing, refresh expectations and known limitations are listed in the public data-source register.

Related guides

How to use local planning precedents

Use nearby planning decisions intelligently by comparing proposal, property, setting, conditions, refusals and documentary evidence.

Which planning-application documents matter

Prioritise decision notices, officer reports, drawings, design statements and specialist reports when researching a planning application.

Apply this guide

Start with the exact UK address.

Research a property