ᐅ Narrow Plot Maximum Potential Single-Family Home with Low Knee Walls

Created on: 27 Aug 2019 20:33
S
Subwkloofer
We would like to build a nice, small, somewhat traditional single-family home on the mentioned plot of land.
Due to the dimensions, the width will probably be limited to about 8.50 m (28 feet).
Since I do not have a measurement program, I can only make rough estimates.
The original idea was to build without a basement and still have a guest bathroom with a toilet and a small guest/workroom of around 10 sqm (108 sq ft) on the ground floor.
However, because of the limited width, we were advised against this, and now we are considering whether adding a basement would make more sense to avoid squeezing everything in.
The upper floor is planned to have the usual three bedrooms (possibly with a small dressing room) and a bathroom including a bathtub.
A real challenge at the moment is the knee wall height of 0.5 m (20 inches).
After inquiries at the building authority, it may be possible to submit a preliminary request regarding a two-story construction.
Maybe you have some good advice or suggestions about what makes the most sense regarding cost-effectiveness.
We are completely open regarding heating technology and ventilation systems.
Underfloor heating is fixed.
Unfortunately, we have not yet found the perfect floor plan. (Preferably, the living rooms would face south, and the kitchen and guest WC would be on the north side.)

Is our plan feasible with this plot? What should be especially considered when working with an architect or builder?

Lageplan: Grundstück X (ca. 509 m²) rot markiert, am Weg, Nordpfeil, blaue Flächen.


Development plan/restrictions
Plot size: 509 sqm (5,476 sq ft)
Building window, building line, and boundary: generally 3 m (10 feet)
Number of floors: 1.5 floors
Roof type: pitched roofs with 30–50° slope
Open building style
Ridge: parallel to the plot
Knee wall height: 0.5 m (20 inches) from the top of the finished floor to the top of the wall plate
Maximum eaves height: 4 m (13 feet)
Plinth height: 0.70 m (28 inches)

Client requirements
Brick facade is on the wish list.
Possibly a basement, 1.5 or 2 floors
Number of people planned: 2 adults, 2 children (1–3 years)
Space requirements on the ground floor: kitchen, guest WC including shower, dining room, living room, study (without basement + utility room)
Space requirements on the upper floor: bathroom with bathtub and three bedrooms (possibly dressing room)
Kitchen should be open, max. with a movable partition
Carport with tool shed
kaho67428 Aug 2019 12:05
Could you please explain the ridge direction in more detail? "Lengthwise along the plot" is not very clear, since the plot is everywhere.

Looking at the neighboring buildings, there doesn’t seem to be any restriction regarding depth. Whatever is missing in width is simply added in length. But I do think it’s doable.

However, without exact measurements and a possible building area, guessing here is pointless.
Subwkloofer28 Aug 2019 12:36
The ridge direction is predetermined as shown in the example from Escroda on the first page below.
The current plan is the survey plan, which is correct.
Y
ypg
28 Aug 2019 12:36
kaho674 schrieb:

längst zum Grundstück"

Regarding the street. Many streets have this requirement, and it makes sense here as well.

With a plot of 8.5 x 12 meters (28 x 39 feet), the classic design includes a utility room and an office on the ground floor, with the entrance from the street side. The living room is adjacent to the garage and faces west, while the kitchen and dining area open toward the south.
Again: where exactly is the problem?
By using a 50-degree roof pitch, you almost reach two full stories. With a dormer on the south side for two rooms, or a raised bay window, definitely. The building authority offers an exemption for this. It's all great.
E
Escroda
28 Aug 2019 16:48
ypg schrieb:

Facing the street. Many streets have this requirement, and it makes sense here as well.
No, actually not.
ypg schrieb:

Where exactly is the problem?
Right here. The house must be gable end facing the street, so you have a long eaves side and a short gable side, which means a lot of area is limited by sloped roof sections. That’s why I suspect the building authority will allow full-story dormers.
kaho674 schrieb:

But without exact measurements
Take my plan from #6 and reduce it a bit; so 8.5m by 12m (28 feet by 39 feet) will definitely work, in my opinion also 14m (46 feet) depth.
kaho674 schrieb:

existing building plot
The blue line is the building boundary; there are no restrictions to the south or on the sides.
S
Strahleman
28 Aug 2019 17:07
What does the zoning plan say about the maximum number of floors allowed? We are building on a similar plot size (7.8 x 11.8 m (26 x 39 ft)) with a knee wall / dwarf wall height of 0.00 m (0.0 ft). In some rooms, we have planned large dormers (almost Bauhaus style), which especially brings the entire bathroom up to full room height. That should also be possible for you if 0.5 m (1.6 ft) knee wall and a 50° roof pitch are not enough.

You should definitely be able to build something livable on your lot.
Y
ypg
28 Aug 2019 17:22
Escroda schrieb:

Exactly here. The house must be gable-end facing the street, so you have a long eaves side and a short gable end, which means a lot of the area is limited by sloped roofs. Therefore, I suspect that the building authority will allow dormer windows that create full stories.

I don’t see any downside to that.
Better like this than the other way around.