Single-family house floor plan with a distant view - Do you notice any planning errors?

Hello dear forum visitors and experts,

after countless plans, we now have a final version which I kindly ask you to check for planning errors. Nothing is set in stone yet, and I am very happy about your points.
- Ground floor in our opinion very good. 1st floor unfortunately not yet.
- Important, roof slopes are not considered in the program.
- Dimensions in the floor plan in meters.

The basic questions are as follows:

[*]Does the floor plan contain major planning errors?
[*]Is the house entrance chosen correctly? (Currently planned on the east side)
[*]Is the staircase sensible? (we have also seen good floor plans with a central staircase)
[*]Is there possibly a trick to create a bit more knee wall for the 1st floor without having to give up a ceiling height of approx. 2.60m (clear height) for the ground floor? Do you consider 2.60m exaggerated? We spend most of our time on the ground floor / dining and living area.
[*]1st floor office too large. Bedroom somewhat too small, bathroom somewhat too small, storage room feels "in the way"

Attached hopefully all relevant facts about the floor plan/plot as well as the development plan.

Development plan/restrictions
Size of the plot 520m²
Slope no
Plot ratio (Grundflächenzahl) 0.25
Floor area ratio (Geschossflächenzahl) 0.4
Building window, building line and limit 12x10m edge development
Number of parking spaces 2 cars
Number of storeys 2
Roof shape gable roof, 38-42 degrees
Style direction modern - large glass façades
Orientation length of the building east-west
Maximum heights/limits 3.9m outer wall height (above rafter insulation system)
Further requirements ratio building body 1.0m width to 1.2m length

Requirements of the builders
Style direction, roof shape, building type modern, large glass façades, gable roof
Basement, storeys basement - planned, 2
Number of people, age 2 people, 31 & 32 years
Space requirements ground floor, upper floor large open living area family use or home office? home office on 1st floor desirable
Guests per year few
Open or closed architecture open
Conservative or modern construction modern, not a KFW house
Open kitchen, kitchen island closed kitchen with large sliding door,
kitchen island would be "nice to have" but not must-have
Number of dining seats 1
Fireplace yes and it is a MUST!
Music/stereo wall no
Balcony, roof terrace no, no
Garage, carport doesn't matter, 2 vehicles
Utility garden, greenhouse utility garden
Special features very sunny location, distant view to the north side

House design
Who designed the plan: layman (usJ) à do-it-yourself

What do you particularly like? Why? ground floor, large and open living area including fireplace
What do you not like? Why? little storage space on the ground floor, 1st floor low knee wall
Price estimate according to architect/planner: not yet done. should however be within our budget
Personal price limit for the house, incl. equipment: 520,000 + 100,000 basement
Preferred heating technology: no connections - therefore external energy supply

If you have to do without, which details/extensions
- can you do without: orientation of house entrance, basement, other
- can you not do without: high door thresholds, fireplace, large window fronts
(on the north & west side on the ground floor)
open living area, bedroom on the north-west)

Why has the design turned out as it is now?

What makes it particularly good or bad in your eyes?
Good: open living area (ground floor)
Bad: feels like too little storage space (ground floor), no pantry

What do you expect from the separate hallway/staircase? The staircase could become somewhat narrow regarding the roof pitch. I would simply turn the staircase approaches towards the hallway... Basically, I would probably rotate the house, with the garden to the west... I have a problem with the site plan: could you please mark the cardinal directions there?

I’m asking myself the same thing right now, why does your floor plan enter from the south (street)? Is the access from there?

Personally, I like the garden to be in the south, like 90% of people.

For that budget, the house is way too small for me; you can get something really good! At least 170 sqm plus basement. The ground floor overwhelms you, the pantry is missing and you can’t turn around in the guest WC.

Please don’t create floor plans yourself, that goes wrong; first have something reasonable planned and then you can build on and improve it.

Who is supposed to be working in the kitchen anyway? In my opinion, it is somewhat of a waste of space. The running meters for the kitchen cabinets are a bit scarce for that... And yes: there is fundamentally a lack of storage space. There isn't even room for a wardrobe, only for a few hooks. And the shoes? With the sloping roof, the staircase and the toilet are tight. I hope the basement has a purpose for you? I don't think you need more space upstairs. Without children's rooms, you should be able to get by with a small wardrobe up there. However, the floor plan has to be right, and it is not here.

is there maybe a trick to gain a bit more knee wall height for the 1st floor without having to give up a ceiling height of about 2.60m (clear height) for the ground floor?

No. If the development plan allows it, however, you can plan with generous dormers or transverse gables.

Do you think 2.60m is excessive?

No, not excessive. But if the 10cm then are missing in the upper floor, then it’s dispensable. I can hardly believe that the building envelope for the garage is supposed to be only 5m deep. If it is, unfortunately your garage won’t fit.

Basically, I would probably rotate the house, placing the garden to the west... I have a problem with the site plan: could you mark the cardinal directions there?