What helps you choose
- Define the purpose of the extra space.
- Consider a different layout too.
- Check the rules for your address before finalising the plan.

Make your space requirements specific
Describe a normal day. Where do you get in each other’s way? Which areas are barely used? What activity has no suitable place? Consider chairs in use around the table, the route to the garden and storage needs.
Sketch the current situation and add your wishes. The sketch explains your idea; feasibility, structure and technical measurements are assessed separately.
Compare three directions
This comparison helps prepare your first conversation. It does not establish which alteration is technically possible in your home.
| Direction | May suit… | Key discussion point |
|---|---|---|
| Changing the existing layout | Space that exists but is awkwardly used | Which walls, openings and connections are affected |
| Extending | A use that genuinely needs extra floor area | Connection to the home, garden space and daylight |
| Targeted bespoke work | A room where storage or furnishing is the main difficulty | What needs storing and how much circulation space must remain |
Checking the rules is part of preparation
Do not assume an extension needs no permit. The Dutch government directs you to the Omgevingsloket permit check to assess your plan. Its location and characteristics determine the relevant questions. Building rules still apply even when no permit is needed.
Complete the check for your own address and keep the result with your plans. Clarify uncertainties before agreeing the final construction details.
Look beyond external dimensions
Consider how old and new spaces meet. Should floors, walls and ceilings match? What do you expect of lighting, heating and garden access? State what belongs in your enquiry and what you will arrange separately.
Show a favourite project photo and explain what you like: daylight, the view outside or calm finishes. A photo guides the conversation; it does not guarantee the same design will suit every home.
Your preparation
Bring this to the conversation.
Tick what you have already prepared. These ticks are not saved.
0 of 5 items prepared
Keep this page with your plans. You do not need to have worked out every point before contacting us.
Avoid these three pitfalls
- Comparing only external dimensions and forgetting use.
- Treating another home as proof that no permit is needed.
- Assuming all interior finishing is automatically included in an extension proposal.
This guide helps you prepare your choices and the conversation. Technical details and applicable rules are assessed for your own home.
Sources consulted on . Follow the links in each section for the latest guidance.
Which choice would you like to explore together?
Tell us about your home and idea. Include what you have not decided yet.
Discuss your plans More about our service: Remodelling & extensions

