The request for quotations is made through the architect. He also suggested including the connection of the drainage in the rough construction offer. [/] What simplified construction costs per m2 would one calculate for a single-family house if everything is built turnkey?
I don’t quite follow yet: (1) was a classic professional tender or merely a layman’s request for quotation nonetheless held with the involvement of the architect? # (2) was the drainage integrated into the "rough construction" lot before or after the first offers were received (?) # (3) does "offers for almost all trades" mean that offers are not yet available for all trades, or were some trades excluded for owner performance / friend performance / awarding to relatives? # (4) are the mentioned prices to be understood as "exclusive of owner performance"?
Due to the WDF format, both the number of required bricks (thus also the material costs) and the effort for laying increase. Approximately a 5-8k surcharge.
Is it being laid in a random bond (which is somewhat unsuitable to absorb imaginative dimensions)? 58 instead of 48 bricks per "square meter" (visible surface) naturally means more labor and mortar share.
Are the reference values per m2 potentially higher for a multi-family house than for a single-family house?
Multi-family house peculiarities such as the stroller parking space or the like are distributed over mass prices and not visible before the comma. A possible elevator and the barrier-free dwelling unit(s) required depending on the building size are more noticeable there. Fire protection is somewhat more complex. Regarding parking spaces, there is an old scholarly dispute about the cost-effectiveness of double parking systems.