Tekenpunt/ Projects/ Ridge raising Gouda
Completed project · Ridge raising PLAN N°PRJ-GDA-2025 / SCALE 1:100 / 2025

Ridge raising in Gouda

A 1970s terraced house in Gouda-Goverwelle had a low attic that the owner wanted to use as an extra bedroom. The ridge raising gave the owner 16 m² of additional living space without disturbing the neighbours or the street profile. We delivered the complete package: design, roof structure and building permit. Permit granted within 6 weeks.

TypeRidge raising
LocationGouda
Surface area+16 m²
Lead timeBuilding permit 6 weeks
Year2025
ResultSpacious bedroom floor
§01 From sketch to completion

The complete process

01 · Challenge

Attic too low for a room, plot width limits ridge options

The terraced house in Goverwelle had an attic space with a maximum standing height of 1.6 metres. The owner wanted to turn it into a bedroom for their eldest child, but the existing ridge height made that impossible. The property stood in a row without mutual dividing walls above the gutter, which meant that the ridge raising had to be fitted with extreme precision to guarantee watertightness and avoid construction errors.

02 · Our approach

Ridge raising of 60 cm with additional roof light

We raised the ridge by 60 centimetres while keeping the roof pitch unchanged. At the same time we designed a roof window on the rear facade of the new roof structure, so that the attic room would also receive natural light without requiring a dormer. The details of the connections to the neighbouring properties were fully worked out. The municipality of Gouda assessed the application positively after a brief additional explanation about the ridge profiles of adjacent properties.

03 · Result

16 m² with daylight and a central standing height of 2.2 metres

After the ridge raising, the attic floor has 16 m² of usable floor area with a standing height of 2.2 metres in the central part. The roof window at the rear lets in a great deal of light. The building permit was granted in 6 weeks. The contractor replaced the roof structure in five working days and the clients were able to furnish the new bedroom just two weeks later. The property has increased noticeably in value.

Key project details

Drafting
Construction drawing + roof details + roof window
Permit
Building permit granted
Structure
New roof structure + connection details
Ridge raising
+600 mm, same pitch angle
Lead time
Permit arranged in 6 weeks

What we delivered

  • Existing and new situation drawings (elevations, sections, floor plans)
  • Complete building permit application with the municipality of Gouda
  • Structural calculation for new roof structure including roof window
  • Connection details for terraced house adjacent plots (waterproofing)
  • Ridge profile comparison for permit application
  • Construction-ready detail drawings for the contractor
§03 Ridge raising yourself?

Got a similar project in mind?

Whether you live in Gouda, the Groene Hart or elsewhere in the Netherlands: we handle the design, roof structure and permit from A to Z. Mid-terrace or detached, we know the connection details. Since 2016, 800+ projects. A no-obligation quote within 1 working day.

Last updated: June 2026 Content reviewed by the Tekenpunt team · in-house architect & KIWA-certified structural engineer