ᐅ House design with three children's bedrooms on a 473 m² plot

Created on: 14 Mar 2024 20:16
D
derdom
We have the opportunity to purchase a 473 sqm (about 5,090 sq ft) plot in a new development area. Currently, we own a 120 sqm (about 1,290 sq ft) house from 2014 with two children’s rooms and a basement, and we have recently had another child.

Unfortunately, there are no larger plots available here at the moment. I am currently wondering whether a house like the one we envision can be reasonably planned on this site.

Site coverage ratio 0.38, floor area ratio 0.8, max building height 10.5 m (34 ft), max eaves height 5.5 m (18 ft). Three parking spaces need to be provided. Gable and hip roofs with slopes between 22 and 48 degrees. The plot is level with a south-facing street side.

The plan is for approximately 160 sqm (about 1,720 sq ft) of living space, including three children’s rooms, a home office, a main bathroom with a bathtub, plus a toilet with a shower on the ground floor. A garage is currently included in the plans, provided everything reasonably fits on the plot and we still have some garden space left. Basement construction is not yet decided—currently, we have a basement. Possibly an attic could be an alternative? I am uncertain about the maximum height allowances and whether this would even be feasible with two full storeys.

At the moment, our floor plan is similar to a Flair 113 with a basement. What bothers us is the extremely small toilet on the ground floor and the lack of a room on the upper floor.

I would first appreciate some general advice to help develop this idea.
Lageplan eines Baugebiets mit gelb-orange Straße, blauer Bordlinie und grünem Kreismarker sowie Maße
D
derdom
16 Mar 2024 10:13
@hanghaus2023 The orientation is not fixed. Possibly position the longer side facing north, so there is more space available....
H
hanghaus2023
16 Mar 2024 10:17
That depends on where you want to have the garden. In the south?
H
hanghaus2023
16 Mar 2024 10:46
How large do you want to build? The Lichthaus 152 has 163 m2 (1,755 sq ft).

Is the land included in the 700k?
D
derdom
16 Mar 2024 11:00
@hanghaus2023 The plot costs around 100,000€ (about 110,000 USD), leaving 600,000€ (around 660,000 USD) for the rest. We are planning for 160-170 m² (1,720-1,830 sq ft). If the floor plan is efficient, we might save a few square meters.

Currently, we have 120 m² (1,290 sq ft) with a basement. We are missing one room.

We are conflicted about the garden. To the south is the residential street, which might make you feel a bit exposed. If the house is set further forward, then you end up with shade...
Y
ypg
16 Mar 2024 11:14
derdom schrieb:

While searching for floor plans, we came across this topic. Floor plan
At least the upper part already looks very efficient.

???
derdom schrieb:

  • There is a maximum wall height (WH) for the main buildings of 6.5 meters (21 ft 4 in) on the uphill side plots and 5.5 meters (18 ft) on the downhill side plots, measured from the respective access road, in accordance with the applicable land use template.
  • The lower reference point is the road height at the midpoint of the outer property boundaries along the street frontage. The upper reference point for the established wall height is where the exterior wall of the building intersects with the roof surface.

I’m having trouble making sense of this at the moment.

What exactly don’t you understand?
According to the photo — which does show a fairly steep slope — you are on the downhill side. (Note, I am not familiar with the zoning plan!)
H
hanghaus2023
16 Mar 2024 11:23
@ypg The slope is about 5% if those are contour lines in the plan excerpt.

I am also interested in what the zoning plan says.

According to the zoning plan excerpt, two stories can be built.