01 · Challenge
Homogeneous street frontage requires a tightly fitting design
The Oranjewijk in Groningen is a post-war expansion neighbourhood with a structured layout and virtually identical housing types. The municipality has an active policy to maintain the uniformity of street scenes: dormers on front roof surfaces must fit within the width and height guidelines that apply to the neighbourhood. The attic room was too narrow to be usable as a bedroom and had no natural light.
02 · Our approach
Broad design within Groningen's aesthetic review framework
We studied the Groningen aesthetic policy for properties of this type. The dormer could not be wider than two thirds of the width of the roof plane and had to remain at least 0.5 metres behind the eave. By making the dormer as wide as possible within these rules, we maximised the natural light and usable space. The facade colour and window frame type were matched to the existing property. The application passed the aesthetic review directly.
03 · Result
Front attic room transformed into a full-size bedroom
After fitting the dormer, the front attic room gained 6 m² of extra usable floor area with a standing height of 2.1 metres. The generous window section brings light into the bedroom and provides a view of the street. Neighbours reacted positively: the dormer fits so well into the facade that they barely noticed it. The building permit was granted within 7 weeks; the installation itself took two days.