A villa in Bilthoven in the wooded Utrechtse Heuvelrug area received a glass conservatory as an extra dining room on the ground floor. Permit-free design, steel construction with maximum glazing to make the most of the view over the wooded garden.
Illustrative blueprint view · existing situation, permit sketch, 3D impression and the delivered result.
The owners of a spacious villa in Bilthoven wanted to detach the dining area from the kitchen and relocate it to a separate, bright room overlooking the forest garden. The property is situated on the wooded Utrechtse Heuvelrug, a rural area with strict rules for extensions. Nevertheless, a compact conservatory of 14 m² proved entirely permit-free thanks to the large back garden and the correct positioning relative to the plot boundaries.
We designed a conservatory with extra-slender steel profiles that provide maximum glazed surface area. The roof is entirely in glass with a light anti-reflective coating that limits excessive heat build-up in summer. The conservatory connects to the existing tiled floor of the living room, so there is no height difference. We resolved ventilation with tilt windows in the roof plane that open automatically when the indoor temperature becomes too high.
The contractor was able to start within two weeks of receiving the drawings. The 14 m² conservatory is now the family's favourite spot: a bright dining room with a panoramic view of the woodland garden. The insulated glazing ensures the space is comfortable even in winter. The clients are extremely satisfied with the result and immediately commissioned Tekenpunt for a new bathroom.
Key project details
What we delivered
A permit-ready drawing for a conservatory starts at Tekenpunt from €595. The exact price depends on the scope and complexity; you receive a fixed price upfront with no additional billing. Request a no-obligation quote.
That depends on the type of intervention and the rules of the municipality of Bilthoven. We check the aesthetic review policy and the zoning plan in advance, so you know where you stand and your plan typically passes the review in one go.
We deliver the construction drawing within 0-3 weeks, or 0-2 weeks on an urgent basis. The permit procedure itself takes eight weeks for a standard application (Environment Act).
Whether you live in Bilthoven, de Utrechtse Heuvelrug or elsewhere in the Netherlands: we handle design, structural engineering and permits from A to Z. Since 2016, 800+ projects. A no-obligation quote within 1 working day.