Time between contract signing and start of construction

If we have now decided to build with company X or Y, the contract will eventually have to be signed. I assume that the respective construction company will only start planning firmly with us/the house building project after our signature and that the excavators cannot start rolling the next day.

First of all, the building permit will have to be issued? How long did it take for you until it was approved? I find different information on this.

And how quickly was your developer or different companies ready to actually start? Was it a matter of 2 days after receiving the permit, or rather 6 months? Or even longer?

Our property developer said something about 6-8 weeks. I'm curious to see if that will work out. It's been almost 3 weeks since signing and there is still no excavator on the field. Good thing we have a construction time guarantee of 8 months. So he shouldn't dawdle.

Construction time guarantee is often understood to start from the beginning of construction, isn't it?

Good that we have a construction time guarantee of 8 months. So he shouldn’t dawdle.

this usually applies from the completion of the foundation slab, since the construction company often cannot influence the processes before the start of construction.

the time from signing the contract to measuring and thus the beginning of excavation work can vary greatly. anything from 4/5 weeks to 1 year or more is possible. the construction notification period is 1 month before you can theoretically start. shorter is only possible with huge risks (which of course would be passed on to you, the private individuals). but before you submit a construction notification, it must first be clear what the house should look like including floor plan, size, height, shape, etc... various calculations are also required (drainage, etc...). all that takes time and the builders have a huge influence on that. if you don’t submit the application, nothing happens at all.

we were actually very, very fast. the company pushed forward, my answers and so on were given within hours, not days. the floor plan (static calculations) was finalized exactly before signing the contract.

for us it was like this: signing with the general contractor on 19.04.2015 (yes, on a Sunday) start of notification preparation, clearing open questions, etc...: 20.04.2015 submission of construction notification 12.05.2015 letter from the building authority that we may start: 10.06.2015 staking out/earthworks 11.06.2015 (the date had been set 2 weeks earlier) pouring the foundation slab 12.06.2015 start of construction work 15.06.2015 (so 1 weekend dried) handover of the house 25.10.2015.

construction time guarantee: 6 months, they used 4.5 months

for the neighbor it was 9 months between signing and start of construction because the construction company had no capacity for architects etc... the construction time guarantee is not affected by that...

After signing, plans will be created first. You have to choose the equipment while the plans are being refined. The building application will be submitted after your signature. The approval can take several weeks, which depends on the authority. This time will be yours. After the approval is received, the companies usually take 2 to 6 weeks (I can't remember exactly), this is also stated in the contract. The execution plan will be created and the logistics planned. For us, there was an 8-week wait between approval and start of construction. P.s. We were in a hurry. Contract signing at the beginning of January, start of construction mid-June

First of all, the building permit will be issued first, right? How long did it take for you until it was approved? I find different information on this.

For us, it took a little more than 3 months. However, there are also regions where one currently has to wait even longer. The many apartments for our new specialists take priority.

Often it also makes sense to wait for the building permit and only then start, soil surveys, execution planning, structural engineer, etc... Then of course the first tenders. Even if companies for the first trades (civil engineering, shell construction) are ready to go, I would also plan 6 - 8 weeks between approval and project start.