The difficult topic of cost estimation

Hello everyone,

We are building our first house and are still "a bit" uncertain.

As a little background:
We like greenery and especially Miss is very fond of the garden. Unfortunately, building plots are getting smaller and smaller. In search of space-saving solutions, the garage was somewhat a thorn in my side, and so the idea of a generous basement in which the cars could also fit came to mind. Preferably, not just for 2 cars, but also a parking space for a trailer and room for bicycles, etc., and thus the misery began.

I have really gotten quite worked up about it by now, and our architect is grinning and "drawing." He said that once the concept is finished, we will do a detailed cost estimate and then see... Everyone tells me that in the end the architect will calculate a price and then, based on experience, the big cutting back will begin...

Guys, I’m really scared of being completely off the mark. I know the common cost estimates of 1500-2000€/m2 or 300-500€/m3, but I really struggle to calculate that for my specific situation.

We are planning modern and spacious:
200 sqm living space over 2 floors (+basement)
- lots of glass
- upscale fittings
- room height 2.70 m

For the basement, I am currently planning about 220 sqm, of which:
- about 50 sqm granny flat
- about 50 sqm heating cellar & workshop
- the rest (120 sqm) garage, unheated and undamped.
- room height 2.35

Overall, I roughly calculated around 1050 m3 of enclosed space.

And now the big question: Is there experience-based cost rates one can assume for the individual areas so that I can estimate more precisely? Or rather, how much does such a house cost (assuming without plot and without architect fees)?

I am curious and look forward to any answers (ok, maybe not).

Thank you very much

Completely forgotten, the construction site is in a rural area in BW

Completely forgot, construction site is in a rural area in BW

Name the place.

If your budget for the house starts with a 5, the beads of sweat shouldn't be that big.

Furthermore, I can already tell you that with 200 sqm of living space plus 220 sqm of basement, in my opinion 1050 cubic meters will be very tight; it will certainly be more.

The prices in our tenders vary greatly (partly up to 50%). Therefore, I hope that your chosen architect relies on a reasonable pool of craftsmen.

Regarding the construction costs, I can tell you from our build that we will probably end up at around +/- EUR 380.00 per cubic meter. The equipment is, in my opinion, good; so far we have not had to cut corners.

Excerpt:

Almost 270 sqm underfloor heating (gas condensing boiler)
High-quality ventilation system for all heated rooms
Roof glazing with shading
Proper electric blinds in a designer version and very high-quality roller shutters
Air conditioning in the living room and 3 bedrooms
High-quality floor coverings (about EUR 95.00 per sqm)
Delicate staircase

etc. etc. etc.

I’m keeping my fingers crossed for you.

Best regards,

Merlin

Depending on the location, good 30,000 euros can go to the earthworks contractor for your project.