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Quick indication

House price calculator

Get a first indication of the cost of your timber house in 2 minutes

Total floor area (m²)

Total gross floor area of the house, including all storeys.
Example: a house with 2 storeys of 100 m² each = 200 m² total.

120 square metres
80 m²350 m²

Number of storeys

Select how many storeys your house has

Explanation

How is this price indication calculated?

The calculator uses the same principles as our real quotation process. Three choices drive most of the price of a prefab timber frame house: the shape, the energy level and the glazing.

House shape: from rectangle to architect-designed

A rectangular floor plan is the most economical: fewer corner joints, more efficient panels, faster assembly. An L-shape requires extra structural detailing. A fully custom architectural design — where we particularly excel — takes the most engineering and production work, but delivers a home that exists nowhere else. Our CNC production (±1 mm tolerance) makes almost any shape your architect draws feasible.

Energy level: Comfort, Premium or Lux

Comfort is our high-quality standard timber construction — well above Dutch building-code requirements. Premium adds thicker insulation packages with natural materials. Lux builds to passive-house level with high-end technical solutions. The difference lies in insulation thickness, airtightness detailing and window quality — and pays back through your energy bill: our most recent Dutch architect-designed house achieved an airtightness of n50 = 0.24, far beyond the passive-house standard.

Windows and glazing

We can fit window frames in the factory — saving construction time and failure costs on site. You choose the type (PVC, timber or timber-aluminium) and the amount of glass: from compact openings to large glass sections with voids. Per square metre, glass is the most expensive part of the facade, so this is a real price lever.

What the indication does and does not cover

The amounts shown cover the prefab timber delivery: production of walls, floors and roof, transport and assembly by our own crews (shell), plus external finishing for turnkey. Not included: foundation and groundwork, interior finishing, services, kitchen and bathroom, crane and scaffolding, and permits. This lets you compare fairly with other suppliers.

From indication to fixed price

Send us your sketch or drawings — you will receive a first serious price indication within 10 working days, free of charge and without obligation. On commissioning, the price is fixed contractually: no escalation clauses, no surprises. Since 1991 we have built 400+ projects across 14 countries this way.

Frequently asked questions about the calculation

How accurate is this indication?
The calculator uses our current factory prices per square metre and shows a ±10% range. The final price follows from a project-specific quotation based on your drawings — you receive it within 10 working days, free of charge and without obligation.
What is the difference between structural shell and turnkey?
The structural shell is the weathertight envelope: walls, floors and roof, manufactured and assembled by ZTC. Turnkey additionally covers the external finish, such as facade cladding and fitted windows. Interior finishing, services, kitchen and bathroom fall outside this indication in both cases.
Is the foundation included in the price?
No. The foundation, groundwork and utility connections fall outside the ZTC delivery; you arrange these yourself or through your contractor. We naturally coordinate the foundation dimensions with you.
Does the price stay fixed after the quotation?
Yes. The contract price is the final price — no material clauses, no escalation. Only changes you make yourself after the technical design freeze are charged at a pre-agreed rate.