ᐅ Separate Apartment for Parents: 210 m² Detached Single-Family House with an 80 m² Self-Contained Apartment
Created on: 22 Apr 2017 18:22
S
schustrik
Hello everyone,
We are planning to build a house with a separate apartment for parents.
The main house will have two full stories and a hip roof, and to reduce costs a bit, the separate apartment and the garage will have flat roofs.
The house will be built in a new development, and I have already designed the floor plan.
The plot measures 924 m² (11,470 sq ft) and is numbered 30 on the site plan.
Site coverage ratio: 0.4
Floor area ratio: 0.6
Building height: 4.5 - 6.5 meters (15 - 21 feet)
The driveway can only be on the west side because there will be a bus stop on the south side.
What concerns me:
On the upper floor, the east wall runs right above the living and dining area and is actually only supported by the wall between the stairwell and the storage room of the separate apartment. Could this cause any structural issues?
I have drawn the exterior walls as 45 cm (18 inches) thick and the interior walls as 15 cm (6 inches). Load-bearing walls could probably be reduced to 20-22 cm (8-9 inches).
The “wet rooms” like bathrooms and toilets are spread throughout the house, and the separate apartment will have its own heating system. The sewer drainage gullies are located at the south edge of the plot near the bus stop.
We are planning to build a house with a separate apartment for parents.
The main house will have two full stories and a hip roof, and to reduce costs a bit, the separate apartment and the garage will have flat roofs.
The house will be built in a new development, and I have already designed the floor plan.
The plot measures 924 m² (11,470 sq ft) and is numbered 30 on the site plan.
Site coverage ratio: 0.4
Floor area ratio: 0.6
Building height: 4.5 - 6.5 meters (15 - 21 feet)
The driveway can only be on the west side because there will be a bus stop on the south side.
What concerns me:
On the upper floor, the east wall runs right above the living and dining area and is actually only supported by the wall between the stairwell and the storage room of the separate apartment. Could this cause any structural issues?
I have drawn the exterior walls as 45 cm (18 inches) thick and the interior walls as 15 cm (6 inches). Load-bearing walls could probably be reduced to 20-22 cm (8-9 inches).
The “wet rooms” like bathrooms and toilets are spread throughout the house, and the separate apartment will have its own heating system. The sewer drainage gullies are located at the south edge of the plot near the bus stop.
S
schustrik5 May 2017 20:43So now the granny flat is integrated with the main house.
The granny flat is approximately 70 sqm (750 sq ft). The other part is 98 sqm (1,055 sq ft), and the upper floor is 131 sqm (1,410 sq ft), making the total about 300 sqm (3,230 sq ft). Possibly, the granny flat upstairs could have two bedrooms while the one downstairs has only one.
The extensions on the "right" side will become balconies.
In theory, the driveway could fit up to nine cars, and the whole building looks like a townhouse with a centrally located front entrance door.
The interior dimensions, based on the photo, are 14 x 9 meters (46 x 30 feet), with the rear extension measuring 3.5 x 10 meters (11.5 x 33 feet).
Everything is nicely symmetrical now as well.
The granny flat is approximately 70 sqm (750 sq ft). The other part is 98 sqm (1,055 sq ft), and the upper floor is 131 sqm (1,410 sq ft), making the total about 300 sqm (3,230 sq ft). Possibly, the granny flat upstairs could have two bedrooms while the one downstairs has only one.
The extensions on the "right" side will become balconies.
In theory, the driveway could fit up to nine cars, and the whole building looks like a townhouse with a centrally located front entrance door.
The interior dimensions, based on the photo, are 14 x 9 meters (46 x 30 feet), with the rear extension measuring 3.5 x 10 meters (11.5 x 33 feet).
Everything is nicely symmetrical now as well.
S
schustrik5 May 2017 21:47ypg schrieb:
Are you allowed to build more than 15 linear meters of boundary wall?
I don’t think so!
And what about the balconies? Two side by side? One for mom, one for dad... and the kids play below [emoji1417]
Regards, YvonneThen the garage needs to be moved 3 meters (10 feet) forward. There is space available, and the trash bins need room too.
There needs to be more space on the ground floor, so part of the building has to extend out somewhere, and it makes sense to do so at the back. A roof could be built over it, but why not have balconies? The exterior walls there should be built 1 meter (3 feet) higher.
schustrik schrieb:
Then the garage has to be moved 3 meters (10 feet) forward. There would be space for that, and the trash bins also need room.I think moving it 3 meters (10 feet) to the side would be better. That way, you would still have parking spaces between the garage and the property boundary, and you wouldn’t be looking at cars from the garden.
schustrik schrieb:
There needs to be more space on the ground floor, so it has to be extended out somewhere, and it would naturally be at the back. You could also put a roof over it, but why no balconies? Using balconies as a makeshift solution because the floor space assigned to the ground floor “overhangs” isn’t really ideal. In the way it is here—the balconies are about 30% the size of the rest of the upper floors—that would suit a one-and-a-half-story house, but not this design.
Stylistically, it doesn’t work, because these “stepped stories” only fit well with a flat roof, but combined with a hip roof, it’s like fries with cream. Also, from a floor area ratio perspective, such large balconies are already a problematic factor.
schustrik schrieb:
The exterior walls there should be built 1 meter (3 feet) higher.That’s not so simple from an insulation point of view as it sounds. The parapet at the top is an exterior component, so you need continuous thermal breaks (“isokörbe”) all around because below that, the outer wall has an interior side facing heated rooms.
If you have balconies at all, they should have set-back parapets (essentially as a knee wall) behind a sloping roof section.
kbt09 schrieb:
For the granny flat, living space for eating/cooking/living would then mainly be possible only on the north, northeast, or northwest sides. That wouldn’t work for me.Among all elements, the garage has the least demand for sun exposure and should simply take the “leftover” position where possible.
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