ᐅ Ground floor and basement with bedrooms and bathroom in the basement – what do you think of this layout?

Created on: 27 Jan 2020 22:02
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Sternchen31
Hello everyone,

We have our first appointment with the architect on Wednesday evening. In the meantime, we have started experimenting with our ideas using Sweet Home 3D and want to bring these to the meeting on Wednesday. What do you think about the room layout and design? The living area is planned to be around 140-150 sqm (1507-1615 sq ft). The listed square meters on the floor plans include both exterior and interior walls according to the program. If I have calculated correctly and subtract the exterior walls and about 15% of the foundation size for the interior walls, you end up with roughly 150 sqm (1615 sq ft) of net living space. The foundation here measures 11 x 13 meters (36 x 43 feet). For now, we are mainly focused on the room arrangement and design. We are building on a slope, which means we will drive straight into the garage, and the property slopes downward along with the house.

Between the vestibule and the pantry, as well as between the vestibule and the hallway, we are considering using internal sliding doors.

We also wanted to ask who has placed their main bathroom with toilet, shower, and bathtub in the basement? Because of the sloped site, wastewater from the toilet, shower, and bathtub would have to be pumped back up to street level. There would be a height difference of about 2.5 meters (8 feet) to overcome. We are wondering if this is possible with a pumping system and, importantly, what the costs might be.

Background: We are building on a slope so that half of the basement can be fully used as living space because it is partially above ground. Since we always wanted a bungalow but need a basement, the option of a ground floor with a livable basement area is the best solution for us. We could also build two full floors on the property, but with a basement (half of which is above ground at the rear), it would look too bulky. The house is intended for two adults and one child, and we are planning to install a photovoltaic system, an air-to-water heat pump, and underfloor heating. The house will be built to KfW 55 standards. The slope means there is a height difference of 3.4 meters (11 feet) over a property length of 32 meters (105 feet).

We are very early in the planning process and are using the software for the first time, so please don’t be too harsh if something seems completely unreasonable or confusing.

Thank you in advance for your ideas and suggestions!!!
Grundriss Erdgeschoss: Wohnzimmer, Küche, Diele, Bad, Arbeitszimmer, Speise, Windfang, Garage.


Grundriss eines Untergeschosses mit Bad, Schlafzimmer, Kinderzimmer, Waschraum, Keller, Garage.
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Sternchen31
28 Jan 2020 00:54
ltenzer schrieb:

If you mainly use the area in front of and beside the house as your terrace and garden and access it from the ground floor, I would arrange the living spaces accordingly. Entrance, foyer, and pantry should be placed on the north side.

That’s exactly how I did it: the garage is located in the northwest, the entrance foyer and pantry are also in the northwest. The guest room is on the north side, and the living room and dining room face southeast to south.
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ltenzer
28 Jan 2020 00:58
Sternchen31 schrieb:

Yes, the lines shown mark the building boundaries. According to the development plan, however, garages are allowed directly on the property boundary. Garage and outbuilding boundary construction (the maximum wall height is 3.00 m (10 feet) above the top edge of the curb of the access road directly at the boundary between the plots). Yes, the street is marked in orange. The garage starts 5 meters (16 feet) inside the property; the house may be built parallel to the garage and does not have to be set back.

The plot slopes downward to the east from the street, meaning the street is at the highest point.


Okay, so does that mean your front yard is larger in area than the backyard because the development plan requires it...?
If those lines mark the building boundaries, are you still allowed to move the garage roughly to the middle of the plot, even though it is marked as boundary construction? Because to me, the plan looks like the garage has to be right on the boundary.
But the house must be built exactly as shown?

Personally, I would also place the garage along the northern boundary so it doesn’t block the evening sun from the west.
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ltenzer
28 Jan 2020 01:00
Sternchen31 schrieb:

That’s exactly how I did it. The garage is located in the northwest, the entrance vestibule and pantry are also in the northwest. The guest room is to the north, and the living room and dining room face southeast to south.

Okay, sorry, I misunderstood you. I thought in your plan the garage was situated between the house and the street.
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Sternchen31
28 Jan 2020 01:29
ltenzer schrieb:

So, in your case the garden in front of the house is larger in area than the one behind, because the development plan requires it...?
If those boundaries shown are the building limits, are you still allowed to position the garage roughly in the middle of the plot, even though it’s marked as boundary construction? Because to me the plan looked like the garage must be exactly on the boundary.
But the house must be placed exactly as shown?

I would put the garage on the north boundary so it doesn’t block the evening sun in the west.


Hello, yes, the garden will be at the right corner of the house, in front of it, and it also wraps around the right side. The front garden is definitely larger and flatter than the one at the back, and importantly, it is on the sunny side. We have flexibility to position the house anywhere within the building boundaries, but the garage must be built along the boundary with the neighboring property. It doesn’t matter if the garage starts 5 meters (16 feet) or 8 meters (26 feet) into the property. Since the plot is sloped, it reportedly makes sense to build the garage right at 5 meters (16 feet), otherwise we would need to add a lot of fill to create a level base for it. The house could be moved further into the plot, so it wouldn’t necessarily start parallel to the garage but maybe 2 to 3 meters (6 to 10 feet) further back. However, that would mean the basement would open out into the backyard more.

Unfortunately, we cannot place the garage completely on the north side, as that would involve driving downwards into the garage, which we were advised against.

Street edge with dry grassy field, curb in the foreground, houses in the distance; grey rectangle on the left.


Grass-covered building plot in front of houses with solar panels on roofs; red path marks entrance in foreground.
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Sternchen31
28 Jan 2020 01:37
ltenzer schrieb:

Okay, sorry, I misunderstood you. I thought your plan showed the garage located between the house and the street.

All good, that can easily be misunderstood based on the plan. The "transition" is a covered walkway between the garage and the main entrance. The kitchen and dining room also face the street.
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ltenzer
28 Jan 2020 01:50
Sternchen31 schrieb:

All good – this can also be misunderstood based on the plans. The "passage" is a covered walkway between the garage and the main entrance; the kitchen and dining room also face the street.

Okay, the layout of the rooms makes more sense now. I still find the size proportions too tight in the kitchen and pantry, while the son can set up a roller coaster in the living area. Also think about yourself and the distance from the couch to the refrigerator . The kitchen and pantry might suit a small apartment in central Munich, but not a nearly 90-square-meter (970-square-foot) open-plan living space. It looks like a dollhouse kitchen.