Planning Guides for Harrow
Everything homeowners in Harrow need to know about planning permission, permitted development, and local constraints.
How likely is my planning application to get approved in Harrow?
Planning approval in Harrow isn't straightforward. Your chances depend on your specific property, street, and project — not just general rules.
How much does planning permission really cost in Harrow?
The headline fee for a householder application in Harrow is £258. But that number alone tells you almost nothing about what your project will actually cost.
Do I need planning permission in Harrow?
Planning permission in Harrow isn't straightforward. Your street, your property's history, and local designations all affect what you can and can't do.
What planning rules in Harrow catch homeowners out?
Harrow has conservation areas, Article 4 directions and Green Belt land that can catch homeowners off guard. Here's why your project might be more complicated than you think.
What are the most common reasons planning applications get refused in Harrow?
Harrow refuses more applications than most homeowners expect. The reasons are rarely obvious — and they vary street by street.
Check what you can build in Harrow
These guides cover general rules — your property may have constraints that change everything. Check your specific address.
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