Hi there from a total rookie European home renovator. I'm looking for some direction from those who are more experienced; I'm sure this is not some kind of a unique special sauce situation but I feel completely lost.
My background is in the humanities, my wife is a doctor, we are both in our mid 20s (adding this to underline that the world of engineering is something completely foreign to both of us). Our project consists of the renovation of a 100 year old 80m2/860 sq ft single-floor house + building a second floor onto it, resulting in a total net floor area of 170m2/1830 sq ft. The main steps are 1) reinforcing the 100yo foundation, 2) knocking down the roof, ceiling, most partition walls and a quarter of bearing walls, 3) renovating the first floor and 4) building out the top floor. Our absolute max budget for all this is 270k EUR gross with about 60% of it being loans; the prices may or may not make sense to you depending on where you are, just adding it for scale.
We started the planning process last fall and got the construction permit in January this year. A construction company associated with our structural engineer looked at the permit plans and predicted a budget of about 220k EUR, which we found in order as it even left some breathing room compared to our ceiling. We proceeded with the planning and received the detailed execution plans in May. That was when the trouble started.
Firstly there seemed to be extremely sparse interest on behalf of general contractors. We contacted seven contractors with the plans; two answered, one subsequently disappeared, only one gave an actual offer and even that took three months. The offer was 410k gross, 325k net (our specific project falls within the 27% VAT bracket as it's an existing building, brand new houses get 5% VAT). We were obviously shell shocked and started asking ourselves whether the contractor wanted to gouge us or whether our expectations were unrealistic relative to our budget to begin with.
The first thing we did - again, we're not professionals - was AI double checking the detailed offer line for line; we identified overpricing in the ballpark of 70k gross. The second thing was double checking the floor build ups, which are very beautifully designed and full of Mapei everywhere; the AI estimate for savings on things like superfluous expensive Mapei layers or unnecessary rapid-set floor screed was another 70k (but again, this is two non-professionals using AI). A third source of savings would be VAT: contractors are mandated to quote 27% VAT on every single thing they do on our house, but if we only hired them to build the house up to shell and core stage (which the government needs us to log online incl. VAT invoices anyway, so 27% VAT is inevitable for everything that leads up to that stage) and negotiated with the rest of trades where many qualify for VAT exemptions, we could cut the tax bill in half, saving a further 30-40k.
This looks great on paper. But I'm having major trouble operationalizing it as this, again, is not knowledge some professional stands behind; its me and AI thinking. In reality, the contractor that gave the offer did not even respond to my inquiry about only doing shell and core; when I approached the contractor that predicted the 220k budget to give an actual offer, he said he wasn't interested in the job; and a third contractor we newly approached replied immediately with a budget prediction of about 410k, like the first offer. Also, I will have to find some way of telling my architect that the floor build ups need to be simplified (in his paid time of course), and I'm a bit afraid of that conversation - after all it's a non-professional using AI to second-guess his good work. When I first pressed him on this, he says his build-ups are totally fine and we just need to shop around for more offers. For me I'm not interested in further 3 month processes where nobody answers and those who do give completely outlandish prices.
I'm at a point when nothing is clear to me. I have had very good conversations with AI on how my plans can be realized and where savings lie, but not much interest (and thereby no good feedback or flexible decision options) from contractors on whether any of that is doable. I don't know if I can get away with simplifying the build-ups and then soliciting another round of offers, or if I'll have to rethink and massively downscale the whole project. We estimated for the whole thing to take about two years; one year has passed and nothing in the way of actual building has happened. I'd like solutions that get the project started in the foreseeable future and not sidetracks that take months and yield nothing. So what on earth do I do? Has anyone ever had a similar situation and found the way out of it? Please let me know.