Skip to content

Planning gain

Adding value by obtaining planning permission, then selling or developing.

Professional analysis

Value = residual with permission − price paid − planning costs, risk-weighted by probability of consent. Review the local plan, recent decisions nearby (planning applications data, where licensed), and constraints. A possibility of permission is not a permission.

Capital requirements

Purchase or option price plus planning costs.

Cost assumptions to budget for

  • Application fees
  • Architect and consultant reports
  • Appeal costs if refused

Potential returns

Binary outcome; model a refusal scenario.

Main risks

  • Refusal
  • Onerous conditions or s106
  • Policy changes

Legal checks

  • Option/conditional contract drafting
  • Title restrictions on development

Regulatory checks

  • Local plan, NPPF, constraints

Is it suitable?

Often suits

  • Planning-literate investors

Usually not suitable for

  • Anyone needing certain returns

A general guide, not a personal recommendation. Suitability depends on your finances, experience and attitude to risk.

Step-by-step

  1. Identify sites with policy support.
  2. Pre-application advice.
  3. Submit application with full reports.
  4. Sell with permission or develop.

Financial calculations

Total sale value of the finished units — use sold evidence.

Get a cost consultant or contractor estimate.

SDLT, legal and agent fees on the land.

Development appraisal (residual land value)

Build cost£855,000
Professional fees£85,500
Contingency£64,125
Sales costs£30,000
Build finance (approx.)£52,743
Target profit£240,000
Residual before land costs−£167,368
Maximum land price£0
Land costs and finance£0
  • ⚠ The scheme does not reach the target profit at any land price with these inputs.
  • ⚠ A simplified appraisal. Lenders and valuers use full cashflow appraisals; planning permission is not assumed.

Every figure above comes from the assumptions you entered. This is not a valuation, mortgage offer or financial advice.

Create a free account to save calculations.

Official sources

Last reviewed 31 Oct 2026. Rules change — check the source before relying on this guide.

Not advice

This guide is general research. It is not legal, tax, financial, planning or investment advice. Speak to a qualified, regulated professional before acting.