ᐅ Floor Plan Design for a Single-Family House with a Basement on a Sloped Site
Created on: 22 Mar 2025 13:41
5
57Christian
Hello everyone,
we are currently planning to build a single-family house with a basement on a sloped site and would appreciate your feedback.
Development plan / restrictions
Plot size: 517 sqm (approximately 5,567 sq ft)
Slope: yes
Site occupancy index: 0.3
Floor area ratio: 0.3
Number of parking spaces: 0/1
Number of floors: 1.5
Roof type: gable roof
Maximum heights / limits
Other requirements: roof pitch 28-45°. Knee wall height 75 cm (30 inches), defined slightly differently
Client requirements
Basement, floors: basement + ground floor + attic living space
Number of people, age: currently 3 people (2 adults + 1 child). Planning should include child #2.
Space requirements on ground and upper floors
Office: family use or home office?
Overnight guests per year: not relevant, occasional
Open or closed layout: rather open
Conservative or modern design: rather modern
Open kitchen, kitchen island: yes, kitchen island if possible
Number of dining seats
Fireplace: currently under discussion
Balcony, roof terrace: terrace facing south + terrace facing west planned
Garage, carport: 1 garage, with space next to it for carport / garage (optional, future)
House design
Who designed it: general contractor from the area
What do you like especially? Why? Open living area. All requirements accommodated. Option for a second garage.
What don’t you like? Why? Currently considering removing the second bathroom in the attic and instead adding a shower on the ground floor.
Price estimate according to architect/planner: 500,000 excluding land, additional costs, civil engineering, and landscaping.
Preferred heating technology: heat pump
If you have to give up something, which details / extensions
- can you give up: separate bathroom for the children in the attic
- can’t you give up: open living area, large bathroom upstairs
Why is the design like this? It is the first design from the contractor. Other plans were partly similar.
we are currently planning to build a single-family house with a basement on a sloped site and would appreciate your feedback.
Development plan / restrictions
Plot size: 517 sqm (approximately 5,567 sq ft)
Slope: yes
Site occupancy index: 0.3
Floor area ratio: 0.3
Number of parking spaces: 0/1
Number of floors: 1.5
Roof type: gable roof
Maximum heights / limits
Other requirements: roof pitch 28-45°. Knee wall height 75 cm (30 inches), defined slightly differently
Client requirements
Basement, floors: basement + ground floor + attic living space
Number of people, age: currently 3 people (2 adults + 1 child). Planning should include child #2.
Space requirements on ground and upper floors
Office: family use or home office?
Overnight guests per year: not relevant, occasional
Open or closed layout: rather open
Conservative or modern design: rather modern
Open kitchen, kitchen island: yes, kitchen island if possible
Number of dining seats
Fireplace: currently under discussion
Balcony, roof terrace: terrace facing south + terrace facing west planned
Garage, carport: 1 garage, with space next to it for carport / garage (optional, future)
House design
Who designed it: general contractor from the area
What do you like especially? Why? Open living area. All requirements accommodated. Option for a second garage.
What don’t you like? Why? Currently considering removing the second bathroom in the attic and instead adding a shower on the ground floor.
Price estimate according to architect/planner: 500,000 excluding land, additional costs, civil engineering, and landscaping.
Preferred heating technology: heat pump
If you have to give up something, which details / extensions
- can you give up: separate bathroom for the children in the attic
- can’t you give up: open living area, large bathroom upstairs
Why is the design like this? It is the first design from the contractor. Other plans were partly similar.
hanghaus2023 schrieb:
Here is my suggestion. The garage/carport and entrance would be in the basement. Answering my question would help. I assume there is a building boundary (see neighboring houses).
H
hanghaus202325 Mar 2025 09:0657Christian schrieb:
When it comes to the question: I have no idea. I just noticed this number on the drawing, with a D in front of it.
Or was it about a different question?
So, the house should be moved further forward? Lower the level of the basement and garage even more? Otherwise, it would be even steeper. Exactly. If the manhole cover is the reference point, what should it be used for?
The neighbor also has the garage in the basement. Please share some pictures of the plot.
Please provide the development plan / zoning plan. With such selective information, it’s hard to make sense of it.
Wall heights in the attic are limited. That’s confusing because with a pitched roof you can’t meet those requirements.
H
hanghaus202325 Mar 2025 09:07ypg schrieb:
I assume there is a building boundary (see neighboring houses) Always these assumptions? Where is the zoning plan / building permit?
H
hanghaus202325 Mar 2025 10:26In my opinion, the garage/carport should be placed on the eastern boundary, as it is already 1.11 m (3.6 ft) higher there.
Positioning the house as close as possible to the street also helps reduce costs. Planning a narrow house design is beneficial as well.
Your driveway needs to overcome a height difference of 1.5 m (5 ft) over 5 m (16 ft). That is too steep.
Positioning the house as close as possible to the street also helps reduce costs. Planning a narrow house design is beneficial as well.
Your driveway needs to overcome a height difference of 1.5 m (5 ft) over 5 m (16 ft). That is too steep.
H
hanghaus202325 Mar 2025 11:47Here is my version based on the information provided here.
Unfortunately, the driveway to the garage has a slope greater than 15%. This should be examined more closely.
Unfortunately, the driveway to the garage has a slope greater than 15%. This should be examined more closely.
H
hanghaus202325 Mar 2025 12:10Here is a version with approximate contour lines.
The terrain has a slope of only about 24%. However, when the road was constructed, the north side was cut into. That explains the steep embankment at the beginning.
It might be worth rotating the house according to the contour lines.
The terrain has a slope of only about 24%. However, when the road was constructed, the north side was cut into. That explains the steep embankment at the beginning.
It might be worth rotating the house according to the contour lines.
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