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
schustrik28 Apr 2017 01:25kbt09 schrieb:
@kbt09, do you happen to have a photo of the front elevation and could you share it?
S
schustrik28 Apr 2017 04:11schustrik schrieb:
@kbt09, do you possibly have a picture of the front view and could you share it?The more I look at the plan, the more I like it, but of course it has to suit all of us.
I’ve been reviewing it and considering if this could work:
Extend the garage by 1 meter (3 feet) towards the back so that the sauna/WC area’s exterior wall roughly aligns with the inner right wall of that room. This would make the garage longer, and there might be space to install the heating system there. The area where the heating is currently planned could then become a storage room with access to the garage.
I noticed the granny flat is drawn about 3 meters (10 feet) forward. If the garage is extended 1 meter (3 feet) back and the granny flat is moved back roughly 1.5 to 2 meters (5 to 6.5 feet), so it only extends 1 to 1.5 meters (3 to 5 feet) forward, then a nice long canopy could be created at the front. This canopy would extend from the granny flat, over the garage door area, and end at the main house entrance, so it would be centered at the front of the house. For example:
or like this with roof tiles and also covering the granny flat, and with a balcony centered above it:
To enlarge the bedroom upstairs, we could shift the left wall about 1 meter (3 feet) into the hallway. The doors of child rooms 2 and 3 would then need to be moved accordingly — about 1 meter (3 feet) down for the door of room 2, so the door of child room 3 fits to the right.
This would make the bedroom roughly 14 square meters (150 square feet), and the walk-in closet could potentially be used as an office.
One more thing about the stairs: I checked, and they are about 1.5 by 3.8 meters (5 by 12.5 feet). What if they were made straight with a landing in the middle? We want the landing so that there are no narrow corner steps on the stairs. The stair width would then be reduced from 1.5 meters (5 feet) to about 1 to 1.1 meters (3 to 3.5 feet), so the small angled corners inside the wall would not be needed. The landing is also there to prevent children from sliding all the way down if they slip, limiting the fall to just 7 or 8 steps. Or is having a landing unnecessary for this?
PS: Which software did you use to design it?
Views ... just without the roof for now. I have widened the garage door here to 300 cm (10 feet).
Partition walls should be possible to install in the living/dining/kitchen area. I would always make the living area separable and keep the dining/kitchen combined. This saves large special dining spaces.
Partition walls should be possible to install in the living/dining/kitchen area. I would always make the living area separable and keep the dining/kitchen combined. This saves large special dining spaces.
Print out the floor plans, mark the walls with a pencil, scan it, and share the view here.
For a straight staircase with a landing, the staircase as drawn is not long enough and then causes new issues on the upper floor. This is generally a tricky point—you always have to consider things in context. However, the staircase as drawn now would also be very generous as a spiral staircase and not comparable to the small, narrow staircases often shown as discouraging examples.
The fact that the secondary apartment extends about 300 cm (10 feet) to the west serves to allow the kitchen window of the open-plan living area to still capture southern sunlight.
But as I said, just sketch it out.
For a straight staircase with a landing, the staircase as drawn is not long enough and then causes new issues on the upper floor. This is generally a tricky point—you always have to consider things in context. However, the staircase as drawn now would also be very generous as a spiral staircase and not comparable to the small, narrow staircases often shown as discouraging examples.
The fact that the secondary apartment extends about 300 cm (10 feet) to the west serves to allow the kitchen window of the open-plan living area to still capture southern sunlight.
But as I said, just sketch it out.
How should I imagine the bus stop and the properties 42/8 and 42/9?
Why is a garage entrance not possible from the south?
Which roof types ... see also the list of questions in https://www.hausbau-forum.de/threads/grundrissplanung-unbedingt-vor-Beitrag-Erstellung-lesen.11714/ are generally possible?
Should the extension also have a hipped roof?
In the linked post, you can also see that a straight, comfortable staircase is already about 400 cm (13 feet) long. With a landing in between, it will extend to around 500 cm (16 feet 5 inches) in length and requires at least 100 cm (39 inches) of clearance space before and after.
The drawn staircase currently fits between the walls with dimensions of approximately 399 x 162 cm (13 feet 1 inch x 5 feet 4 inches).
The drawn staircase currently fits between the walls with dimensions of approximately 399 x 162 cm (13 feet 1 inch x 5 feet 4 inches).
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