Floor plan design new single-family house 2-storey approx. 135 sqm

Hello everyone

Development Plan/Restrictions
Size of the plot = 1100 sqm
Slope = slightly declining to the north
No development plan
Building window, building line and boundary each with 3m distance to the right and left and 5m to the front to the street
Number of parking spaces = 2
Number of floors = 2
Roof type = shed roof
Style = ?
Orientation = north
Maximum heights/limits = ?
Other specifications = none
Neighbor on the right bungalow one story
Neighbor on the left 2.5 stories

Homeowners’ Requirements
Style, roof type, building type
Basement = no
Floors = 2
Number of persons, 2 adults (42+39)
Space requirement on the ground floor = approx. 72 sqm, upper floor = approx. 45 sqm
Office: occasional home office
Overnight guests per year = rather few to none
Open architecture
Open kitchen, kitchen island
Number of dining places = 4-6
Fireplace = yes
Music/stereo wall = no
Balcony, roof terrace = no
Garage, carport = carport
Utility garden, greenhouse = meadow
Knee wall 180 cm (is that the way to say it for a shed roof? the small side is 180 cm)

House Design
Who created the planning:
-Do-it-Yourself (Sweet Home 3D)
What do you particularly like? Stairs in kitchen/dining room
What do you not like? Storage room on the ground floor is very narrow, when entering the house you look at the fireplace/wall instead of through to the garden
Price estimate according to architect/planner: €310,000 prefab house provider
Personal price limit for the house, incl. equipment: €350,000
Favored heating technology: air-to-water heat pump

If you have to do without, which details/extensions
-you can do without: carport
-you cannot do without: fewer sqm

Why did the design turn out the way it is now?
A mix of many examples from various magazines, visits to show home parks...
What makes it particularly good or bad in your eyes?
It has everything that the two of us need and would like. We don’t need it bigger and it shouldn’t be smaller either.

We would very much like to receive overall feedback. We want to build our house but I like to read one opinion or another, maybe we have also forgotten or overlooked something important?

Ground floor:


Upper floor:


Thank you very much for reading.

Regards
Andreas

Knock the „thing“ into the bin or press DEL. The main thing is to get rid of it.

A staircase that doesn’t work (way too short), in a place that doesn’t work.

Even prefab house providers have capable architects.

or simply make the staircase longer?

No, that simply doesn't fit. The seats at the dining table are at least well marked. With the distances, you would actually have to sit practically on the table.

Storage room doesn't work, it's just a hallway
Stairs way too short
Everything feels like Tetris

What should be included in the budget?

The staircase is at least one meter too short. And does not work well in that spot.