ᐅ Single-family house floor plan on a slightly sloped plot, approximately 175 m²
Created on: 14 Feb 2023 13:53
U
Unnerfranggn
Hello,
we are a family of four and are planning our first own house.
We are completely new to this and hope to avoid some pitfalls or at least get some useful warnings here in the forum before making mistakes.
This is my first post here – please be patient if I have forgotten important details for you and I will try to add anything missing.
Hopefully, most questions can be answered from the questionnaire.
Development Plan / Restrictions
Plot size: 439m² (according to development plan – residential area not fully serviced yet, plot not surveyed. Front approx. 13m (43 feet) wide, widening to 17m (56 feet) after a curve, approx. 27m (89 feet) long)
Slope: Gentle north-facing slope, plot rises about 2.5m (8 feet) towards the south
Site coverage ratio: 0.3
Floor area ratio: 0.6
Building envelope, building line, and boundaries: See development plan excerpt. 3m (10 feet) setback from road, otherwise according to BayBO (Bavarian building code). Carports/garages may also be built outside the building boundaries (not at the rear)
Edge development: Fill or similar up to a maximum of 2m (6.5 feet) above traffic surface
Number of parking spaces: 2
Number of floors allowed: 2 full stories permitted
Roof style: Any allowed
Style: Detached or semi-detached house allowed
Orientation: As far as I can tell, we may choose the access road
Maximum heights/limits: Wall height 6.5m (21 feet) (“reference point is the respective topographically highest point at the public traffic area within the street facade length in front of the middle of the main building”). Ridge height 12m (39 feet).
Further regulations: The development plan feels very detailed, I don’t know what else might be relevant but can look it up. I believe I’m not allowed to share a link?!
Homeowners’ Requirements
Style, roof shape, building type: We want a single-family house for a family of four with dogs. Preferably with a cozy garden.
Basement and floors: Due to the slope and a need for plenty of (storage) space, we considered a basement (facing north and partially above ground), plus 2 full floors. Knee wall (kniestock) 1.6–1.8m (5–6 feet) if possible. Preferred roof type is gable roof, currently planned with a 25° pitch.
Number of occupants, age: 2 adults, 2 children (5 and 6 years old), and 3 dogs
Space requirements on ground and upper floor: Our current ideas:
- Ground floor: open kitchen-living-dining area, guest toilet, pantry. Preferably a generous hallway/entrance area with room for arriving and storage.
- Upper floor: 2 children’s rooms, bright and spacious, children’s bathroom (with shower), master area with bedroom/walk-in closet/master bathroom (shower and bathtub).
- Basement: utility/technical room, storage, office, guest room. If possible, office and guest room with as large windows as possible facing downhill; the basement should protrude about 1–1.5m (3–5 feet) from the ground (facing north/towards the service road).
Office: Family use or home office? Office room with home office for 1 person.
Guests per year: 8–10 times per year, usually 2–4 guests for several days each
Open or closed architecture: Preferably as open and bright as possible
Conservative or modern construction: Normal?
Open kitchen, island: Kitchen preferably open, cooking island optional (or flush with wall for more countertop space), pantry desired
Number of dining seats: 4–10, often have guests for meals
Fireplace: No
Music/audio wall: “Regular TV/music family living room” with no special acoustic requirements
Balcony, roof terrace: Rather not – garden terrace is sufficient
Garage, carport: No garage needed, a carport with storage space for 1 car (+ space for garden tools and bikes, possibly with preparation for electric car charging) would be great
Utility garden, greenhouse: No
Other wishes/special features/daily routine, including reasons why certain things are desired or not:
- We want our own space with lots of light and room for everyone, including places to retreat and to work. The living-dining area with a large dining table should be the heart of family life.
- Originally, we wished for a “two-story gable bay window” (according to the catalog) to brighten the dining area and also enhance the exterior appeal. Financially, this is questionable (~€30,000 approx. cost, not yet included). Maybe a large seating window next to the dining area instead?
- We would like to modify the shown floor plans as follows (see hand-drawn sketches): In the basement, largest possible windows (light wells or shafts possible?) and 2 rooms as a living basement. On the ground floor, entrance from the east side, large hallway, pantry. On the upper floor, the children’s rooms should face south, the master area north. Generally, as many large windows as possible, especially in living spaces.
- We would like the carport including the shed described above to be located eastwards up to the plot boundary, preferably the full possible 9m (30 feet) length and as wide as possible when the house is sited as close as possible to the road on the west side. However, with the front door on the ground floor, the driveway to the carport would slope upward. The carport should also provide the canopy over the front door.
House Design
Who created the design: By us based on the “Evolution139” by Bien-Zenker plus “grid extensions”. Exterior dimensions based on current calculation 9.41m + 11.92m (31 feet + 39 feet).
What do you particularly like? Why? Open living area: living room is open but without a direct line of sight to the kitchen, large children’s rooms
What do you dislike? Why?
- We are unsure about the best layout for the entrance area including wardrobe/guest toilet/pantry. Should the hallway’s access to the living area be aligned with the front door or the stairs?
- As currently planned in our heads, only the guest toilet and master bathroom are stacked vertically. Children’s bathroom and utility room are in different areas – will this work?
Price estimate from architect/planner: House with grid extensions including basement (not a living basement), turnkey (KfW 40+ or NH40 standard): €520,000
Personal budget limit for the house including equipment: €600,000
Preferred heating system: Air-to-water heat pump with underfloor heating.
If you had to give up, on which details or upgrades
-you could give up:
-you cannot give up: Light, open living-dining area
Why is the design the way it is now?
We have a “pre-contract with price guarantee” with Bien-Zenker. After being allocated a plot by the municipality, we chose a house from the “Evolution” series that fits the plot dimensions. The internal layout should be “freely changeable,” or we could possibly choose another house from this series. Staircase shape and position should also be adjustable.
The floor plan screenshots come from the catalog or a preliminary plan from the seller. The hand-drawn floor plans reflect our ideas for the layout and the plot arrangement. I haven’t added windows yet.
With our ideas/wishes (and hopefully input/tips from you) the next step is the architect. Our architect so far does not seem to want to be very creative – if we give him a finished plan, he will probably just use it?! Hence, beforehand we ask for your opinions.
What is the most important/fundamental question about the floor plan, summarized in 130 characters?
- Does the plot layout make sense? Are there better alternatives?
- Are the carport and driveway feasible (incline? space by front door?)
- Can the bathrooms be located as per the sketches?
- Is a living basement financially possible?
- How much space is needed for light wells in front of basement windows?
- Ideas for floor plan variations or obvious mistakes?
- Obvious cost-saving potential?
Thanks in advance and have a sunny day!
Roland
Edit: The development plan excerpts are oriented north on top, south at bottom.
we are a family of four and are planning our first own house.
We are completely new to this and hope to avoid some pitfalls or at least get some useful warnings here in the forum before making mistakes.
This is my first post here – please be patient if I have forgotten important details for you and I will try to add anything missing.
Hopefully, most questions can be answered from the questionnaire.
Development Plan / Restrictions
Plot size: 439m² (according to development plan – residential area not fully serviced yet, plot not surveyed. Front approx. 13m (43 feet) wide, widening to 17m (56 feet) after a curve, approx. 27m (89 feet) long)
Slope: Gentle north-facing slope, plot rises about 2.5m (8 feet) towards the south
Site coverage ratio: 0.3
Floor area ratio: 0.6
Building envelope, building line, and boundaries: See development plan excerpt. 3m (10 feet) setback from road, otherwise according to BayBO (Bavarian building code). Carports/garages may also be built outside the building boundaries (not at the rear)
Edge development: Fill or similar up to a maximum of 2m (6.5 feet) above traffic surface
Number of parking spaces: 2
Number of floors allowed: 2 full stories permitted
Roof style: Any allowed
Style: Detached or semi-detached house allowed
Orientation: As far as I can tell, we may choose the access road
Maximum heights/limits: Wall height 6.5m (21 feet) (“reference point is the respective topographically highest point at the public traffic area within the street facade length in front of the middle of the main building”). Ridge height 12m (39 feet).
Further regulations: The development plan feels very detailed, I don’t know what else might be relevant but can look it up. I believe I’m not allowed to share a link?!
Homeowners’ Requirements
Style, roof shape, building type: We want a single-family house for a family of four with dogs. Preferably with a cozy garden.
Basement and floors: Due to the slope and a need for plenty of (storage) space, we considered a basement (facing north and partially above ground), plus 2 full floors. Knee wall (kniestock) 1.6–1.8m (5–6 feet) if possible. Preferred roof type is gable roof, currently planned with a 25° pitch.
Number of occupants, age: 2 adults, 2 children (5 and 6 years old), and 3 dogs
Space requirements on ground and upper floor: Our current ideas:
- Ground floor: open kitchen-living-dining area, guest toilet, pantry. Preferably a generous hallway/entrance area with room for arriving and storage.
- Upper floor: 2 children’s rooms, bright and spacious, children’s bathroom (with shower), master area with bedroom/walk-in closet/master bathroom (shower and bathtub).
- Basement: utility/technical room, storage, office, guest room. If possible, office and guest room with as large windows as possible facing downhill; the basement should protrude about 1–1.5m (3–5 feet) from the ground (facing north/towards the service road).
Office: Family use or home office? Office room with home office for 1 person.
Guests per year: 8–10 times per year, usually 2–4 guests for several days each
Open or closed architecture: Preferably as open and bright as possible
Conservative or modern construction: Normal?
Open kitchen, island: Kitchen preferably open, cooking island optional (or flush with wall for more countertop space), pantry desired
Number of dining seats: 4–10, often have guests for meals
Fireplace: No
Music/audio wall: “Regular TV/music family living room” with no special acoustic requirements
Balcony, roof terrace: Rather not – garden terrace is sufficient
Garage, carport: No garage needed, a carport with storage space for 1 car (+ space for garden tools and bikes, possibly with preparation for electric car charging) would be great
Utility garden, greenhouse: No
Other wishes/special features/daily routine, including reasons why certain things are desired or not:
- We want our own space with lots of light and room for everyone, including places to retreat and to work. The living-dining area with a large dining table should be the heart of family life.
- Originally, we wished for a “two-story gable bay window” (according to the catalog) to brighten the dining area and also enhance the exterior appeal. Financially, this is questionable (~€30,000 approx. cost, not yet included). Maybe a large seating window next to the dining area instead?
- We would like to modify the shown floor plans as follows (see hand-drawn sketches): In the basement, largest possible windows (light wells or shafts possible?) and 2 rooms as a living basement. On the ground floor, entrance from the east side, large hallway, pantry. On the upper floor, the children’s rooms should face south, the master area north. Generally, as many large windows as possible, especially in living spaces.
- We would like the carport including the shed described above to be located eastwards up to the plot boundary, preferably the full possible 9m (30 feet) length and as wide as possible when the house is sited as close as possible to the road on the west side. However, with the front door on the ground floor, the driveway to the carport would slope upward. The carport should also provide the canopy over the front door.
House Design
Who created the design: By us based on the “Evolution139” by Bien-Zenker plus “grid extensions”. Exterior dimensions based on current calculation 9.41m + 11.92m (31 feet + 39 feet).
What do you particularly like? Why? Open living area: living room is open but without a direct line of sight to the kitchen, large children’s rooms
What do you dislike? Why?
- We are unsure about the best layout for the entrance area including wardrobe/guest toilet/pantry. Should the hallway’s access to the living area be aligned with the front door or the stairs?
- As currently planned in our heads, only the guest toilet and master bathroom are stacked vertically. Children’s bathroom and utility room are in different areas – will this work?
Price estimate from architect/planner: House with grid extensions including basement (not a living basement), turnkey (KfW 40+ or NH40 standard): €520,000
Personal budget limit for the house including equipment: €600,000
Preferred heating system: Air-to-water heat pump with underfloor heating.
If you had to give up, on which details or upgrades
-you could give up:
-you cannot give up: Light, open living-dining area
Why is the design the way it is now?
We have a “pre-contract with price guarantee” with Bien-Zenker. After being allocated a plot by the municipality, we chose a house from the “Evolution” series that fits the plot dimensions. The internal layout should be “freely changeable,” or we could possibly choose another house from this series. Staircase shape and position should also be adjustable.
The floor plan screenshots come from the catalog or a preliminary plan from the seller. The hand-drawn floor plans reflect our ideas for the layout and the plot arrangement. I haven’t added windows yet.
With our ideas/wishes (and hopefully input/tips from you) the next step is the architect. Our architect so far does not seem to want to be very creative – if we give him a finished plan, he will probably just use it?! Hence, beforehand we ask for your opinions.
What is the most important/fundamental question about the floor plan, summarized in 130 characters?
- Does the plot layout make sense? Are there better alternatives?
- Are the carport and driveway feasible (incline? space by front door?)
- Can the bathrooms be located as per the sketches?
- Is a living basement financially possible?
- How much space is needed for light wells in front of basement windows?
- Ideas for floor plan variations or obvious mistakes?
- Obvious cost-saving potential?
Thanks in advance and have a sunny day!
Roland
Edit: The development plan excerpts are oriented north on top, south at bottom.
I don’t fully understand this rule about the wall height yet. Does it include the gable, or how is it defined?
If you fully submerge the basement to lower the front door, how is the terrace supposed to look then? Do you plan to dig it out? I would have concerns about water in that case.
If you fully submerge the basement to lower the front door, how is the terrace supposed to look then? Do you plan to dig it out? I would have concerns about water in that case.
Unnerfranggn schrieb:
@ypg Thanks for the great visualizations and the assessmentThe credit goes to @K a t j a … she was as hardworking as @hanghaus2023.I’m still wondering if the carport is really in a good position there. The height issues are definitely a challenge.
I’ll write down some thoughts, a bit unordered:
You have options:
Driveway from the north OR west. Entrance from the east OR north OR west.
Entrance in the higher basement OR ground floor … all considered independently from the floor plan.
Light wells: in my opinion, there are regulations that these must also comply with setback distances from the property boundaries.
However, like with bay windows, if the light wells are small enough, they may be allowed to exceed the 3 meters (10 feet) limit.
Because of the slope, I wouldn’t place light wells or regular windows in the southern part of the lot, but rather in the northern third.
Here is a version with a deep basement and the front door on the ground floor without stairs.
A shallow courtyard, a semi-circular light well on the west in the basement made of fieldstones, and on the east a wall that starts the slope and the neighbor’s terrain. A light well could also be created here.
BUT: your terrace would then basically be on the upper floor. And your light wells would be very deep.
So, what to do now? Thinking unconventionally: entrance door on the level basement on the north side, terrace on the ground floor on the south…
And @hanghaus2023 did a good job here, because if you excavate the basement, you’ll be digging partially into the ground floor as well. This completely ignores the slope’s conditions. Try building this with cardboard or LEGO bricks. The way you imagine it is the most complicated approach for this plot, involving the most earthworks.
If you have a slope, a basement makes sense—precisely because about 50% of it (on average 1.4 meters (4.5 feet)) can be exposed without it counting as a full floor.
I also want to mention split-level construction again.
Didn’t you also have dogs? An entrance in the basement level is exactly right for that: guest restroom and cloakroom in the basement, and the ground floor can do without a restroom…
Or: put your bedroom with a small shower bathroom in the basement instead of the guest room, and have the children’s rooms and guest room upstairs.
Positioning the garage directly in front of the house will visually lower the perceived height of the house.
Unnerfranggn schrieb:
Topic: Grid Extensions
@11ant I can only repeat what is stated in the catalog. It says that this house model can be extended along both the eaves and gable sides by "one or more grid modules" of 62.5cm (25 inches) each. I had hoped the company knows what they are doing since they seem to do this frequently? Although not for every house in the catalog... How can we be sure the roof won’t blow off? The house is supposed to be 125cm (50 inches) "wider" (two full grid steps), but only 75cm (30 inches) longer (not a full multiple of the grid steps), which confuses me a bit. The company knows what they’re doing. They regularly build custom-designed houses. Why would the roof blow off???
K a t j a schrieb:
I don’t fully understand this rule about wall height yet. Does it include the gable, or how is it defined? Wall height means eaves height, and the other limitation comes from avoiding a full additional story for the basement, so that it does not count as a third full floor.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
ypg schrieb:
A flat courtyard, with a semi-circular light well on the west side in the basement made of fieldstone, and on the east side a wall that marks the beginning of the slope and the neighboring terrain. A light well could also be created here.
BUT: Your terrace would then be more or less on the upper floor. And your light wells would be very deep.
I can't really imagine that right now. Entrance on the ground floor on the north side means no terrace on the ground floor, right? ypg schrieb:
Light wells: in my opinion, there are regulations that these must also comply with the required setback distances from property boundaries. Not necessarily in all cases. In some federal states they do increase the wall height and therefore the setback distances. It’s worth checking for your specific region.
ypg schrieb:
I’m also mentioning split-level again.
Yes.... *thinking*… good idea...
H
hanghaus202316 Feb 2023 09:28Definition of wall height. On the eaves side, 6.5 m (21 feet 4 inches) at the center of the house. The reference point is the street. Therefore, my idea to achieve the desired high knee wall is to rotate the ridge line so that the sloping street serves as the reference point for the wall height. The tower can be visually concealed by adding an overhanging roof above the garage and entrance.
@Unnerfranggn You don’t need to worry about the drainage of the basement windows located on the north side. The terrain will be shaped to ensure there is a slope toward the street.
@Unnerfranggn You don’t need to worry about the drainage of the basement windows located on the north side. The terrain will be shaped to ensure there is a slope toward the street.
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