Land planning Single-family house on a north slope with basement

Hello everyone,

here are the first thoughts on the single-family house on the north slope with a basement for commercial purposes.
I would be interested to know whether my first draft is completely useless or not.

Development plan/restrictions (none)
710m² . (21x34)
North slope (view top left "green line": the plot is currently lowered by about 2.5 meters both at the top and bottom)
Survey and soil testing are not yet available
Number of parking spaces (double garage; 2-3 parking spaces in the north)
Number of floors (basement, ground floor, upper floor)
Roof type (gable roof)

Requirements of the builders
Basement is to be used for ancillary business
Number of people, age (2 adults: 30, 25 + possibly offspring (2))
Office: in the basement (ancillary business)
Guests per year 0
Open or closed architecture (kitchen, dining and living area separated from the hallway by a glass door)
Conservative or modern construction (without much frill / straight lines)
Kitchen unit with cooking island
Number of dining seats 6-8
Fireplace yes
Garage (double garage) + parking spaces 2-3

House design
Who designed it:
- Do-it-Yourself

What do you particularly like? Why?
South and north access (ground floor and basement or private and ancillary business)

Personal price limit for the house, including equipment:
450k (plot available)

If you have to do without, which details/fittings
- you can do without: room beneath the ground floor garage (sensible or not "price question")
- you cannot do without: very large basement room

What is the most important/fundamental question about the floor plan summarized in 130 characters?
Is the orientation of the house and garage sensible?
Should the house preferably be located in the north and the plot filled in so that the garden is mostly in the south or would the fill work exceed all dimensions?

I know that very few measurements have been incorporated. This is not about the perfect room layout but about how the house can be best positioned.

I look forward to your suggestions / criticism

At the moment I see a basement that is exposed. In addition, there is a parking lot (for commercial use) to the north, which is further set down. So you are planning a 3-story building! Is that allowed? How much slope do you actually have? I actually read 2.5 meters, but for you it's 6 meters... Or am I just messing up with the drawing?

If it is actually 5 meters, then the "hollow area" in the south is rather hollow - in the double sense.

I would extend the barrier-free basement down to the north entrance and do the rest as well. Middle floor as a sleeping floor and the upper floor as the ground floor towards the south with south garden use and entrance area. If it really is that extreme, then nothing works without an architect. And I also don't see 450,000 if you also want to make embankments in the south.

Maybe the sketch was a bit modest ^^ here again. The green line is supposed to represent the slope as it currently runs, and the brown one how I would "support or fill" the slope. The slope has about a 5m offset from south to north.

Is the idea basically nonsensical? I hope one can get an idea from the sketch.

Your budget and your house do not match at all. Your budget is sufficient for the two residential floors without a garage on flat ground. Your budget is approximately 250,000 euros too low. It could also be 300,000 euros. Earthworks vary greatly by region.

1. As YPG has pointed out, you are allowed to build like this.
2. Are you allowed to access the property from both streets?

Every digger bucket costs money and you have a lot of earth moving. Retaining walls cost money, how are the neighboring properties built?

I really can't think of a good idea. I don't like the filling at all. The south garden is hardly present either.

YPG proposal from No. 3 should be cheaper. It is also possible to save living space without losing utility. Hallway, stairs take up a lot of space.