What if next year the VAT is increased to 21% or even more? That is an incalculable risk for every company. The only thing he "guarantees" you is his net fixed price.
Sorry, you are pretty naive.
I agree.
And NO, you are not right about the VAT: the rate that applies in the respective period counts. That they are NOW advertising with a price including 16% VAT is clear (others do that too). But - as you have already been told - VAT is a "pass-through item" for the company. From 1.1.2021 the rate will be 19% again. Whether you prefer to stay in your fairy tale world with 16% is of course up to you. Your persistence in denying critical statements is pronounced. Hopefully you can use this persistence positively when building your house (when the loan is granted).
Regarding all the calculations: that is simply sugar-coated. Overall it is just unrealistic. Of course you can calculate however you want. Anyone can do that. However, I recommend doing a little plausibility check at the end of each calculation.
- Price of building plot
- Additional building costs, purchase costs, surroundings, construction power, connections, kitchen etc. at least 80,000
- m2 living area at least x 2300.
Then take a look and compare. What does your calculation give, what results from the rough comparative calculation (plausibility check). Nobody here wants to harm you - on the contrary. We are also happy about positive developments. I continue to keep my fingers crossed for you.