What does a dormer planning permit cost?
Municipal fees for an omgevingsvergunning (planning permit) for a dormer are indicatively €300–€700, depending on the municipality. That covers only processing; drawings and any structural advice are extra. On the rear roof plane a dormer is often permit-free — then there are no fees.
Municipal fees
The municipality charges fees for processing an omgevingsvergunning. For a dormer this is indicatively €300–€700. The exact rate is in your municipality's fee schedule and often depends on the construction sum. Some municipalities charge a flat rate, others a percentage.
Additional costs beyond fees
Fees only cover processing. For a complete application you typically also need a building drawing (by a drafting bureau, indicatively €300–€800), possibly an aesthetics review and for larger interventions a structural calculation. Budget €600–€1,500 in total preparation plus fees.
Permit-free = no fees
A dormer on the rear roof plane is usually permit-free if it meets the rules in the Dutch Building Decree (Bbl): at least 0.5 m clearance to sides, ridge and gutter, and no taller than 1.75 m. In that case there are no fees. Front roof plane always requires a permit.