A wooden semi-detached house with a flat roof and a built-up area of 143 m². The interior is divided into four parts with a total area of 99 m². The house has an uncovered terrace with an area of 40 m². The front part is glazed with 2 double doors, 2 French windows and cladding in a combination of wood and metal. The back side also has wooden cladding in a combination of metal and 4 windows. Thanks to the double section, the Flat Double is an ideal solution for a larger family, multi-generational living or a combination of living and working areas under one roof.
 

 
 Price parameters (valid from 01.02.2026):
 
 
 
 Assembly kit – €59,900
 
 
 Installation work – €15,400
 
 
 Foundation (ground screws / concrete slab) – €6,100
 
 
 Total gross construction cost – €81,400
 
 

 
 Possibility to add and edit:
 
 
 
 Installation of partitions and interior decoration – €24,600
 
 
 Basic electrical installation – €7,400
 
 
 Installation of water supply and sewage system – €2,856
 
 
 Interior floors, laminate – €4,330
 
 
 Interior doors – €1,250/set
 
 
 Turnkey price (fully completed construction) – €126,236
 
 
 
 
 Exterior design and thermal protection:
 
 
 Window finish – anthracite – €3,100
 
 
 Solar window tinting – €1,300
 
 
 Additional insulation 50 mm – €5,800
 
 
 Additional insulation 100 mm – €11,600
 
 
 
 
 Windows and doors:
 
 
 Roof window – €760
 
 
 Side window (tilt-tilt) 90×205 cm – €540
 
 
 Side window (fixed) 90×205 cm – €500
 
 
 Side window (tilt-tilt) 55×90 cm – €225
 
 
 Decorative pergola on connectors – €1,500
 
 
 Metal entrance door with 2 locks and thermal insulation – €720
 
 
 Additional entrance door (PVC) – €660
 
 
 
 
 Interior equipment:
 
 
 Kitchen without household appliances, length 3 m – €2,850
 
 
 Bathroom equipment (shower, toilet, boiler, sink) – €1,800