Tekenpunt/Projects/Erker Haarlem
Completed project · Bay window PLAN N°PRJ-HRL-ERK-2024 / SCALE 1:100 / 2024

Bay window in Haarlem

A 1930s terraced house in Haarlem-Oost received a compact bay window on the front facade that fits the Art Deco character of the street. Permit in 7 weeks, approved by the aesthetic review committee in one go.

TypeBay window
LocationHaarlem
Surface area+3 m²
Lead timeBuilding permit 7 weeks
Year2024
ResultBright living room
§01 From sketch to completion

The complete process

01 · Challenge

Art Deco facade with insufficient daylight

A terraced house in a typical 1930s block in Haarlem-Oost has a narrow front section where the ground-floor living room receives less natural light than the owners would like. The street has a coherent Art Deco facade with many facade details and characteristic corner stones. A bay window was a good fit here but had to match the facade composition exactly in terms of proportions and materials, otherwise the aesthetic review committee would have returned the design.

02 · Our approach

Art Deco bay window in brick and steel

We designed a three-sided bay window with vertical articulation connecting to the pilaster structure of the facade. The height of the bay window follows the existing sill height of the windows. The roof finish is detailed in zinc, matching the zinc accents in the street profile. The frames are profiled in steel with a division that respects the Art Deco proportions. We aligned the design criteria in advance with the aesthetic review adviser of the municipality of Haarlem.

03 · Result

Permit in 7 weeks, living room brightened

The design was approved in a single meeting by the aesthetic review committee. The building permit was granted within 7 weeks. The 3 m² bay window adds only modest floor area, but the effect on natural light in the living room is considerable. The owners have fitted out the window sill as a reading bench. The bay window fits so well into the facade that neighbours do not recognise it as new construction.

Key project details

Drafting
Construction drawing + construction details
Permit
Building permit, passed aesthetic review first time
Structure
Steel frame + brick + zinc roof
3D
Impression for aesthetic review and owner
Lead time
Permit arranged in 7 weeks

What we delivered

  • Existing and new situation drawings (floor plans, elevations, sections)
  • Complete building permit application with the municipality of Haarlem
  • Structural calculation steel frame and zinc roof detail
  • 3D visualisation for the aesthetic review committee and the owner
  • Consultation with the aesthetic review adviser of the municipality of Haarlem prior to application
  • Execution-ready details allowing the contractor to start immediately
§03 Adding a bay window yourself?

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