A 1950s detached house in Zeist received a light glass conservatory extending the living room towards the garden. The design was fully worked out as permit-free, with a structure that connects to the existing foundation without additional excavation.
Illustrative blueprint view · existing situation, permit sketch, 3D impression and the delivered result.
The owners of a 1950s property in Zeist wanted to extend the living room towards the back garden, but without major building work. A glazed conservatory was a perfect fit for the style of the property and the large rear garden. The challenge was to connect the conservatory structurally to the existing foundations, which had not been calculated for additional loading, while also remaining within the permit-free dimensions.
We designed a lightweight steel frame with laminated insulating glass. The conservatory rests on its own concrete ring beam, so no additional load is placed on the existing property. The roof plane is built at a shallow pitch that connects to the existing eave gutter. We resolved the transition between the living room and conservatory with a wide sliding-folding window in the existing facade, so that the space is experienced as a single whole.
Because the design was fully permit-free, work could start immediately upon receipt of the drawings. The contractor completed the conservatory in three weeks. The result is a light-filled garden room of 16 m² that can be used all year round thanks to the insulated glazing and underfloor heating. The clients use the conservatory as a breakfast room and home workspace with a view of the woodland garden of Zeist.
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 Zeist. 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 Zeist, the Utrecht region or elsewhere in the Netherlands: we handle design, structure and permits from A to Z. Since 2016, 800+ projects. A no-obligation quote within 1 working day.