English (beta) · translation in progress — some pages still show the Dutch source.
Dakopbouwen en nokverhogingen

Verschil tussen dakkapel en dakopbouw

The difference between a dormer and a roof extension lies in the extent to which the existing roof shape is altered. A dormer is a local addition; a roof extension changes the main shape of the roof.

Hoofdgids · 13 min lezenDakopbouw: complete uitleg
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AspectDormerRoof extension
Main roof shapeRemains intactChanges
Structural impactLocal, limitedLarge, often down to foundation
Permit regime at the rearOften permit-freeAlmost always requires planning permission
Effect on standing heightLocalAcross full width
Construction time1 day to a weekWeeks to months