House on the slope - approx. 200 sqm living space

Good morning everyone,

we are building a single-family house with approximately 200 sqm of living space on a beautiful hillside property not far from the city center. We had posted initial drafts a few months ago. Since much has changed since then, we are posting the current planning status again and look forward to the discussions:

Development plan/restrictions: Development plan
Size of the property: 500 sqm
Slope: yes, approx. 6 m gradient over 28 m property length (southeast slope)
Floor area ratio 0.2
Floor space index 0.3 (deviations are expected to be approved if the floor area ratio is maintained)
Building window, building line and boundary: normal setback areas
Edge development: garage will be built on the boundary. This is permitted.
Number of parking spaces: 1 + garage driveway
Number of floors: I+IS (that means 1 full floor + basement floor --> basement on the slope)
Roof shape: no specification
Style: no specification
Orientation: ridge must run in east-west direction
Maximum heights/limits: eaves max. 3.60 m above street level
Further requirements

Owners' requirements
Style, roof shape, building type: gable roof 48° pitch
Basement, floors: basement floor - usable as premium living space on the south slope with access to the terrace
Number of people, age: parents just over 30, children 0 and 2 years old
Space requirements on ground and upper floor: ground floor: main living area and kitchen; upper floor: 3 bedrooms + bathroom; basement: summer living room/playroom with garden access, guest room
Office: family use or home office?: possibly office as a studio under the roof (not a decisive criterion)
Overnight guests per year: longer-term visits are foreseeable
Open or closed architecture: open
Conservative or modern construction: classic form but large windows with room height
Open kitchen, kitchen island: open kitchen with cold island with seating
Number of dining seats: 6
Fireplace: probably yes, but as an exterior chimney
Music/stereo wall: no
Balcony, roof terrace: no
Garage, carport: prefabricated garage with masonry basement
Utility garden, greenhouse: no
further wishes/special features/daily routine, also reasons why something should or should not be:

Ground-level terrace access from the basement
Photovoltaics

House design
Who is responsible for the planning:
- planner from a construction company (civil engineer) / owner’s own planning

What do you particularly like? Why? Large basement room with terrace access. Comfortable overnight accommodation for guests.
What do you not like? Why? We find the staircase shape very functional; it optimizes space usage on the upper floor and generally on the south side of the house. Visually, however, we would have preferred a straight staircase.
The applicable full floor definition according to the Bavarian Building Code of 1969 forbids, for example, an increase in knee wall height or a second dormer on the upper floor here.
Estimated price according to architect/planner: €360,000
Personal price limit for the house, incl. fittings: 400,000
Preferred heating technology: air-water heat pump

If you have to renounce, which details/extensions
-can you do without: photovoltaics
-can you not do without: basement in residential quality

Why has the design turned out as it is now? For example,
Starting from the conditions of the property and the development plan, we have gradually completely redesigned the first draft, incorporating inspirations from here in the forum and from new residential areas (offline) / Pinterest and co (online).

Currently, among other things, we are still dealing with the following questions:
- Floor-to-ceiling windows on the south side, single- or double-leaf - originally double-leaf with 150 cm width were planned. We like the look without division better, but then probably max. 120 cm would be possible.
- Fixed glazing as a large band of light on the southwest corner of the basement or rather two windows aligned with the windows above in the west view
- Leave out the window in the small basement room in the northwest for the sake of facade appearance?
- 2 additional skylights directly next to the dormer on the upper floor to provide more light in the children’s rooms?
- Floor coverings ground and basement floors: parquet in the upper floor; for the other two floors we are wavering between parquet and continuous granite floor or exposed screed/screed floor

We look forward to the comments!

here is the floor plan of the main bathroom

Unfortunately, I do not find this draft coherent. All in all, the rooms are not well laid out and in my opinion, far too large. - A rectangular hall with 60sqm as a living/dining area? I think 60sqm is okay for that, but the shape is very uncomfortable - Storage 13sqm? For what? - The upper floor has only 4 rooms on about 100sqm of floor space - no one needs a children's room over 20sqm - The basement is not really finished planning-wise, the cellar rooms are totally misshapen - > where is the technical room? (if that is supposed to be the HAR, 8sqm probably won't be enough) - .... Furthermore, I don't think you will manage with your budget. The basement also has some sqm of living space quality, and you possibly want to expand the studio as well. You should discuss your requirements with an architect and then have a draft drawn up. Best regards ivenh0

I can remember the planning from back then: you focused on going from the hobby room to the garden. Keeping the living room or kitchen closed off instead. I didn't understand that at the time. I also don't understand quite a few things now, sorry, for example the window positions. Why don't you hire an architect who will professionally implement your wishes?

Still huge stock. I think the washing machine will go into the HAR. So the longest possible route. Storage rooms in the basement are totally labyrinthine. Garden/terrace and main living area separated is and remains a no-go for me. Budget is getting very tight. Are you planning brick on brick or timber frame?

Oh, I forgot:
Basement walls basically form the structural foundation of the upper floors.
Your hobby room is structurally not feasible as is, let alone to be considered the basis for the upper floors [emoji853]