5 days
Installed
Fixed price
from € 37,510
10 years
Warranty
More space, more living.
A new room invites new traditions, new moments and new memories.
Why a prefab extension?
Installed within a month
From sign-off to handover in weeks — not months.
5 days on site
Placed by crane and fully finished, with minimal disruption.
10-year warranty
On the structure — peace of mind, in writing.
Sustainable
Fully insulated and efficiently built in our workshop, with less construction waste.
Frequently asked questions
A 10 m² extension starts at € 37,510 incl. VAT; 25 m² from € 57,375 (€ 2,295 per m²). Your exact price — including façade, window frames and options — appears instantly in the online configurator.
Many extensions at the rear of the home can be built permit-free, depending on the dimensions and your situation. We review it together with your quote and advise you on the rules in your municipality.
Once you approve, we build your extension in our workshop. Installation at your home takes five days: breakthrough, groundwork, crane placement and the interior and exterior finishing.
Yes — every extension is custom-built. In the configurator you choose any depth up to 5 metres and any width up to 15 metres, in steps of 10 centimetres, and the price updates live.
Yes. Our extensions are fully insulated and, if you wish, fitted with underfloor heating or radiators — a full living space, all year round.
Ready for more space?
Design your extension and get your price instantly. Or request a call back — within one business day.
