Floor plan for a single-family house 210 m² + basement - Your opinions

Hello everyone,

after a longer period of passive reading, it is now time for us. We are planning to build a single-family house with about 210 sqm of living space on an already existing plot of land (approximately 900 sqm, nearly square, no special building regulations) in the district of Landshut. Through several visits to model house parks and conversations with some providers, a floor plan has gradually emerged that reflects our ideas very well.

We would greatly appreciate constructive criticism from your side. We are currently somewhat unsure about the distances, passages, and hallway sizes, specifically how the planned width appears or whether it is practical.

An initial cost estimate of €2500/m² (DIY work or self-assignment of trades is possible or even desired) + €100,000 basement + demolition costs (high own contribution) would result in approximately €625,000 (plus kitchen, etc.). Is this realistic?

Thanks in advance!
Sebastian

Development plan/restrictions
Plot size 900 m²
Slope no
Site coverage ratio -
Floor space index -
Building window, building line and boundary -
Edge development no
Number of parking spaces 2 - already available in adjacent building (in addition to the 900 m²)
Number of floors 2
Roof shape gable roof
Style
Orientation
Maximum heights/limitations none
Other specifications none

Requirements of the builders
Style, roof shape, building type
Basement, floors basement with 2 floors
Number of people, age 2 adults 30+, 2 children < 5
Room requirements on the ground floor, kitchen/dining/living, guest room/bathroom, cloakroom upstairs: 2 children’s rooms, master bedroom/dressing room, bathroom with sauna area
Office: family use or home office? - family use
Overnight guests per year approx. 5
Open or closed architecture open
Conservative or modern construction
Open kitchen, cooking island yes
Number of dining seats 8
Fireplace yes
Music/stereo wall
Balcony, roof terrace if possible
Garage, carport already existing
Utility garden, greenhouse
Further wishes/special features/daily routine, also reasons why this or that should or should not be

House design
By whom is the planning: -Do-it-Yourself
What do you particularly like? Why?
Combination of bedroom/dressing room with bathroom, generous entrance area
What do you not like? Why?
Larger empty spaces in the living/dining area or hallway upstairs
Price estimate according to architect/planner:
€600,000 excluding land
Personal price limit for the house, including equipment:
€700,000 excluding land
Preferred heating technology:
groundwater heat pump

If you have to give up, which details/extensions
-you can give up: roof terrace, full basement
-you cannot give up: generous kitchen

Why is the design as it is now? e.g.
The plan evolved based on several designs from prefabricated house providers and visits to prefabricated house parks

What is the most important/fundamental question about the floor plan summarized in 130 characters?
Are the planned distances, especially the hallways, sufficient or too generous? Is the cost estimate fitting? Thanks!

Without measurements, it is difficult to assess distances. The toilet in the ground floor bathroom needs to be rotated, then there will be no too small distance. In the upper floor, the bathtub catches my eye, which seems very narrow to me. The bedroom is not really a room (of coziness). Without judging measurements, I find the design not worthy of further consideration: with 210 sqm the children's bathroom combined with the guest WC, the long screw through the whole house to reach the kitchen. Along the chill corner as well. I already mentioned the bedroom, bathroom larger than the children's room... Where is the property located? Please include that as well.

Should the children on the ground floor use the bathroom and always have to go upstairs for it? The bathroom on the upper floor is huge, and if a child were to go to the toilet there, they would first have to close the sliding door, and it would also need to be lockable, which is very impractical.

Best regards
Sabine

Demolition costs must absolutely include disposal. It is not cheap. EL hardly pays off in this area.

Let me guess: The design is inspired by a number of partial aspects that excited you in other houses

[*]Arrangement of sleeping area and dressing room in an open design [*]Sauna with space for relaxing chairs and [*]adjacent spa-like bathroom [*]Shower on the ground floor [*]Central pantry without daylight [*]Open kitchen to dining area [*]"Captain’s" bay window [*]Guest/office directly at the entrance [*]Central stove

All nice partial aspects that, however, do not work as modules in your design because practical aspects of daily life have not been considered – especially those of the children (which can also be seen by the fact that these rooms are unfurnished). A stove-heated pantry is not the revelation for the storage of food. The path from the entrance to the kitchen – one has to walk far. And already mentioned and more... What to do? Make a list like the one above and add another list in which you state what you (all) like to do and how your daily life looks/will look. Then go to someone who is excited to design a building from your functional and non-functional requirements. Whether that is a prefab house manufacturer, general contractor, or architect is initially secondary – my choice would be the latter again. How big the house will be then remains to be seen – you are not fixed on 215 sqm, right? Sometimes something smaller is better – without necessarily being cheaper. The budget looks roughly okay for now.

I think you forgot the incidental construction costs in your cost calculation, didn't you? House 210x2500, basement 100k = 625k Demolition?, incidental construction costs?