ᐅ Design for a Single-Family Home of 160-180 sqm – Suggestions for Improvement?

Development Plan / Restrictions
Plot size: 650 sqm (7000 sq ft)
Slope: 2 m (6.5 ft)
Floor area ratio: 0.25
Floor space index: 0.3
Number of parking spaces: 2
Number of floors: 2
Roof type: FD

Homeowners’ Requirements
Number of occupants: 2, mid-30s
Office: home office
Overnight guests per year: none so far
Open architecture
Modern construction style
Open kitchen with sliding door
Number of dining seats: 6
Garage: two parking spaces in the basement

House Design
Planner:
- Do-it-yourself; adapted by planner to the site
What do you particularly like? Basically everything needed is included; the sloping site makes it a bit more complex; driveway to garage is almost level as is the terrace; the view facing south is nice
What do you not like? Why? Upstairs bathroom is too small; would like walk-in shower and bathtub; widen the building by one meter (3 ft)?
Personal budget for the house, including fittings: 550,000
Preferred heating system: underfloor heating

Hello everyone,
We have a nice plot with a slight slope and want to build a new home. All rooms are basically included in the design, but we would appreciate other perspectives. The upstairs bathroom seems too small at the moment, and the layout feels unbalanced.

First, you should properly upload the photos. Then, the site plan is missing...
What are those two staircases on the ground floor?

One staircase to the basement and one to the upper floor. A continuous staircase somehow doesn’t fit into the floor plan. What is wrong with the photos?

Are you standing on your head?

In my view, nothing fits together there. The stairs are not aligned vertically. No measurements provided. Structural engineering and drainage need to be taken into account.

matte1987 schrieb:
Are they upside down?

Is there a way to rotate them? I took the photos the right way up.