Will my house crack?
Structural calculation
Foundation, columns and beams calculated for your soil.
More about structural calculationWant to extend?
Drawings for renovations and extensions
An extra bedroom, a second floor or a carport: we draw it so it joins your house properly and gets the permit.
Where extensions go wrong
An extension looks simple, until the roof leaks at the joint or the old wall starts to crack.
- An extra floor on a foundation not made for it
- Leaks where the new roof meets the old
- Building without a permit, with a fine or a stop order
- An extension that makes existing rooms dark and hot
How we draw your extension
First we look at what is there, then we draw what is added.
Measure what is there
We measure your house or work from your old drawing.
Can the house carry it?
We check foundation and columns before an extra floor goes on.
A proper joint
Roof, floor and walls join without leaks or cracks.
Light and air stay
Existing rooms stay bright and cool.
Permit drawings
The existing and new situation on drawing, as the authority asks.
Building while you live there
An order of works that disturbs your family as little as possible.
What this saves you
No fine or stop order
With a permit you build without that risk.
No damage to your house
Checked first, then built.
More value
A permitted extension counts when you sell or borrow.
This video is coming soon. Feel free to ask your question on WhatsApp.
Video
Watch: can my house carry an extra floor?
How we check whether your foundation and columns can take the extra weight.
FAQ
Questions people ask
Do I need a permit for an extension?
Almost always, also for a carport or veranda fixed to the house. We tell you what your country requires.
I have no old drawing. Is that a problem?
No. We measure the house and draw the existing situation.
Can my house take an extra floor?
That depends on the foundation and columns. We check it first.
Do you draw for permits after the fact?
Yes. If something was built without a permit, we draw the situation as it is.
Often combined with
Which drawings does the permit need?
Permit drawings
A complete set of drawings, so your application does not come back.
More about permit drawingsWhat will it cost?
Cost estimate
A cost estimate per item for your bank and to compare builders fairly.
More about cost estimateGet your fixed price for renovation and extension
Send your plot size and what you want to build. You get a price for your drawings, with no obligation.