Having a dormer designed and engineered.
A dormer provides more light, extra space, and a more usable attic. However, a dormer is not just a simple addition to your home. You create an opening in the roof, potentially alter the roof structure, and add extra load.
Constructieplan.nl helps with the architectural and structural engineering of your dormer. We provide the architectural drawing, structural assessment, structural calculation, working drawing, and building permit application whenever required.
Why choose a dormer?
A dormer is ideal when you want to transform your attic into a full-fledged bedroom, home office, bathroom, or hobby room. The extra headroom and natural light make the space far more practical and comfortable.
Installing a dormer requires thorough technical engineering. The existing roof structure must be assessed and, where necessary, modified. Think of rafters, purlins, beams, trimmer configurations, and the connections surrounding the dormer.
With a professional architectural drawing and structural substantiation, you prevent any ambiguity from arising during execution. The contractor or supplier knows exactly where the dormer will go, how it will be installed, and which structural measures are required.
What do you need?
For a dormer, you typically need:
- Architectural drawing of the existing and new situation
- Floor plan, facade elevation, and cross-section
- Structural assessment of the roof structure
- Structural calculation when load-bearing components are modified
- Structural drawing or detail drawing for execution
- Working drawing for the contractor or supplier
- A building permit application, if applicable
Whether you need a permit depends, among other things, on the position of the dormer, its dimensions, its location on the roof surface, and local municipal regulations. In some cases, a dormer at the rear is permit-free, whereas a front-facing dormer more frequently requires a building permit.
What are the costs?
The costs for a dormer depend on the dimensions, the position, and the technical complexity. A standard dormer at the rear usually requires less drafting and calculation work than a large front-facing dormer or a dormer where the roof structure is drastically modified.
Roughly speaking, the costs consist of architectural drawings, any structural calculations, structural drawings, working drawings, and potentially permit application management. We evaluate what is genuinely necessary for each project, ensuring you do not pay for redundant documents.
Would you like to know the cost of the drawings or calculations for your dormer? Click on ‘Request a no-obligation quote’ and quickly receive a customized price.
Our approach
01.
Precision
Every project is carefully developed by our specialists. We work with precision and thoroughness to ensure that your project meets all standards and requirements.
02.
Reliability
You can count on us. We always deliver within the agreed timeframe and guarantee a result that meets all municipal approval standards.
03.
Personal approach
Every project is unique. We take the time to fully understand your situation and proactively contribute ideas. From the initial consultation to final delivery, you are never on your own.
Not sure where to start? Request a free consultation!
We are happy to think along with you regarding your construction project. Together, we will review your plans and provide immediate clarity on the best possible next steps.
During the consultation, we will discuss:
The possibilities for your project
The best approach for your specific situation
How to avoid mistakes and unnecessary costs
The next steps, from permits to design
