English (beta) · translation in progress — some pages still show the Dutch source.
Planning permission · explanation per situation

Do I need planning permission for my dormer?

Sometimes, but often not. The rear roof space is usually permitted development, while the front roof space almost never is. Aesthetic review, zoning plans, and special situations (monuments, protected townscapes) make it a local matter. We explain what to look out for in each situation — this is not legal advice.

Permitted Development

When you can build without planning permission

2 pages
Application

Aesthetic review, environmental planning permit and submission

4 pages
In Practice

Neighbours, objections and special situations

1 pages

Prefer to understand the technical details and costs?

Besides planning permission, DakkapelWiki has comprehensive guides on construction, materials, and the cost breakdown of a dormer.