Hello,
with some developers, you hear that the houses are built in 3 months, with others it takes 6 months.
What construction time is really realistic?
That cannot be answered in general terms, as there are too many "ifs" to consider.
If you want to build a single-family house, it currently depends heavily on the provider; if their order books are well filled, it can easily take ½ to 1 year before construction of the house even begins. Ordering and interior work should then - depending on the size of the house - take about 4-5 months.
If you want to build conventionally, that is with solid construction, it also depends on the order books of your favorite builder, but it is crucial whether you want to build with a nationwide provider or rather a regionally active contractor; regardless of the system. For both, depending again on the size of the house, good 6-7 months are needed for the actual construction; with a basement, the construction time is extended by about 1 month. The 3 months you mention in the discussion are advertised by the esteemed colleague of a competing company and in my opinion mostly adhered to. To achieve this, chemicals are used that shorten the drying times of the screed.
If you decide on substantial personal contribution, the construction time depends on the contractually owed services of your contracting partner and, of course, the finishing state of the purchased property.
From experience, it can be stated that from the first consultation to moving into the new house, generally about one year passes. If the house is conventionally built and the personal contribution is limited to painting and flooring.
Edit:
I had forgotten. If you decide on individual trade contracting, it depends on the selection of craftsmen, their order books, and the negotiation skills of your architect. Regarding the pure construction time, the same applies as with awarding the contract to a general contractor.
Rhenish regards