Plan your prefabricated house in 7 steps
Visual live preview, filtered floor plans from real manufacturers and no registration. Request your individual quote at the end.
Your live preview
Detached house · Pitched roof · 140 m² · 4 rooms
Which house type are you planning?
Choose the design that best suits your family.
In brief
The fertig-haus.net configurator helps buyers assemble their preferred house type, living area, completion level and energy standard step by step. It then identifies suitable providers among 35 verified manufacturers. Request your specific, individually calculated price free of charge and without obligation through the short contact form. The configurator is free and requires no registration.
Configure a prefabricated house: the details that matter
The configurator needs nine key details to identify suitable providers and provide a realistic assessment. Each answer filters the provider list, so more precise information produces a better match.
House type
Detached house, bungalow, semi-detached house or town villa: the type determines the basic geometry and square-metre cost. Bungalows tend to cost more per square metre because the roof and slab cover a larger area relative to the living space.
Living area
Enter the required living area. Typical values are 100–120 m² for young families, 130–150 m² for families and 160–200 m² for premium requirements. Below 80 m², many providers become uneconomical.
Roof
Choose a pitched, hipped, mono-pitch or flat roof. A pitched roof is usually the least expensive, while a hipped roof with dormers costs most. The roof can change the house price by 5% to 15%.
Floor plan
A compact rectangle or an offset L shape? Departing from a standard rectangle can add around 8% to 15% through extra wall and roof areas.
Completion level
Choose a kit house (from €1,500/m²), shell house (€1,900–€2,400/m²) or turnkey house (€2,500–€3,300/m²). Skilled buyers can save €35,000 to €60,000 by completing a shell house themselves.
Energy efficiency
Higher energy standards add around €80 to €220 per square metre, but may be partly offset by KfW reduced-interest funding of up to €150,000.
Basement or floor slab
A floor slab costs around €18,000 to €32,000; a full basement adds around €35,000 to €65,000. A basement is especially worthwhile on expensive or sloping plots.
Specification
Standard, comfort or premium? The difference between standard and premium is often €200 to €400 per square metre, or up to €56,000 for 140 m².
Budget
Your total budget includes the plot and ancillary construction costs. It determines which combinations of living area, completion level and region are realistic.
After the configurator: next steps
Frequently asked questions about the configurator
Key questions about how the 2026 prefabricated-house configurator works, its cost and price estimates.
