A roof structure drawing is a detailed plan that shows the layout, dimensions and construction of an additional floor on an existing roof.

Yes, a permit is required in most cases. Consult local building codes or engage a specialist to review requirements.

Roof structure drawings include floor plans, sections and details of the roof structure, including dimensions, construction and materials.

Costs vary, but average between €1,500 and €5,000, depending on the complexity of the project.

This varies depending on the complexity, but it can take several weeks to months to complete the drawings.

The steps usually include submitting roof structure drawings, waiting for approval and obtaining the final permit.

Sometimes there are grant opportunities, depending on the region and type of work. Check local grants and conditions.

Minor modifications are sometimes possible, but major changes can affect permits and construction requirements.