ᐅ Single-family house of approximately 160 m², with basement, ground floor, and upper floor featuring knee walls

Created on: 31 Mar 2019 19:56
B
bubbas
Hello everyone,

We have finally found our little plot and are already busy planning.

After gathering so many ideas and suggestions here in the forum, especially in the floor plan section where there are so many valuable tips, I would now like to benefit from your experience as well.

Development plan / Restrictions
Plot size: 365m2 (3926 sq ft)
Slope: Yes (north highest, south lowest, approx. 1m (3 ft) drop within the building zone from north to south, 1.5m (5 ft) across the entire property)
Site coverage ratio: 0.3
Floor area ratio: -
Building zone, building line and boundary: approx. 10 x 11 m (33 x 36 ft), specifications for garage + carport location see plan
Adjacent buildings: None
Number of parking spaces: 1 garage, 1 parking space in front
Number of floors: Basement, ground floor, upper floor with knee wall approx. 125cm (49 inches)
Roof type: Gable roof, pitch 35-40°
Style: ?
Orientation: Ridge from east to west (see plan)
Maximum heights / limits: Maximum finished height 9.00m (30 ft), maximum eaves height 4.50m (15 ft)
Other specifications

Homeowners’ Requirements
Style, roof type, building type: Solid construction house, gable roof, single-family house
Basement, floors: basement, ground floor, upper floor
Number of occupants, ages: 2 adults, 2 children planned
Room requirements on ground and upper floors:
  • Ground floor: living room, kitchen, bathroom with shower and toilet, study
  • Upper floor: bedroom, 2 children’s rooms, study, bathroom

Office: home office 1-2 days per week
Guest bedrooms per year: 4
Open or closed layout: rather open
Conservative or modern design: conservative
Open kitchen, kitchen island: closed kitchen
Number of dining seats: 6
Fireplace: no
Music/sound wall: no
Balcony, roof terrace: no
Garage, carport: 1 garage space and 1 parking spot in front
Utility garden, greenhouse: no
Other wishes, special features, daily routine, including reasons for preferences or restrictions:
  • Dormer or cat-slide dormer facing south on the upper floor
  • Stairs should be easy to walk, not too many triangular steps
  • The lower study should also be usable as a bedroom for aging-in-place on one level
  • Ground floor bathroom should accommodate a washing machine for this reason
  • The house will get a KNX smart home installation, so an electrical riser shaft should be planned
  • Laundry chute with access doors from both bathrooms
  • Terrace should be raised at the front
  • Single garage at least 3.5 x 7 m (11.5 x 23 ft)
  • Rainwater cistern for garden irrigation

House Design
Who designed it: planner from a construction company / own drawings
What is liked: overall layout is fine, all desired spaces included
What is disliked?
  • Front door too close to the garage
  • Garage location due to development plan, we would prefer it moved further back
  • Ground floor: entrance area / stairs / hallway / technical riser interaction

Estimated price by architect/planner: not clear yet
Personal price limit for the house, including equipment: 450k
Preferred heating system: hot water heat pump and photovoltaic on the roof

If you had to give up something, which details or additions
-can you compromise on:
-can you not compromise on: basement, number of rooms

Why is the design like it is now?
Various plans from developers and own ideas

What is your most important / basic question about the floor plan in 130 characters?
  • Any additional comments on the plan?
  • Suggestions to improve the entrance area on the ground floor: hall/stairs/technical riser and bathroom?
  • Other improvement suggestions?

If you have any questions, please feel free to ask. Many thanks in advance!
rick20182 Apr 2019 07:40
I have never understood laundry chutes in private homes. You still have to run downstairs to do the washing and carry the clean laundry back up. That’s why we have the washing machine and dryer on the same level as our main bathroom and dressing room.
J
j.bautsch
2 Apr 2019 07:45
rick2018 schrieb:
You still run downstairs to do the laundry and then carry the clean clothes back up.

Yes, but you don’t run downstairs carrying laundry (risk of accident). However, I agree with you that you still have to carry the clean laundry back up, which is why we are planning exactly that:
rick2018 schrieb:
That’s why we have the washing machine and dryer on the same level as our main bathroom and walk-in closet.
E
Escroda
2 Apr 2019 09:31
bubbas schrieb:
So far, in the discussions, there have been no objections to the 1m (3.3 feet) distance from the street to the terrace.

In Baden-Württemberg, there should be no objections either. In North Rhine-Westphalia or Lower Saxony, you would need to ensure that the terrace does not sit more than 1m (3.3 feet) above the natural ground level.
bubbas schrieb:
Is there any rule about this here?

Sections 5 and 6 of the regional building code
bubbas schrieb:
According to the calculations, would the house have to be much smaller in order to have a terrace, a garage, and a driveway?

That would be one option. If there are no specific regulations regarding terraces in the zoning plan, my suggestion would be: the terrace is not included in the building application and is ideally constructed only after the building inspection.
Floor plan I = 10m (33 feet) * 11m (36 feet) = 110m² (1184 sq ft)
Floor plan II = plot ratio I + garage + driveway = 110m² (1184 sq ft) + 22.44m² (242 sq ft) + 37.70m² (406 sq ft) = 170.14m² (1831 sq ft)
Plot ratio I = 110 / 365 = 0.30 allowed 0.3
Plot ratio II = 170.14 / 365 = 0.47 allowed 0.45
For the still minor exceedance in plot ratio II, a waiver is being requested using @11ant’s arguments from post #14. It might even be accepted due to the slight overage (0.02). Clarify this with your authorized planner; they are responsible for providing you with an approvable design and must take responsibility for it.
11ant2 Apr 2019 16:15
bubbas schrieb:
Then you mean the laundry chute. Yes, I still need to look into that, right now I’ve just roughly marked it in the corner. I think it can be integrated into the wall or the utility shaft.

I only see one shaft here, and it is labeled “utility shaft” (?)
rick2018 schrieb:
I have never understood a laundry chute in a private home.

You would either need a multi-channel chute, or you would have to drop not individual pieces of laundry but the collection bags down it. Because throwing laundry down unsorted and then having to sort it in the laundry room does not seem like a significant convenience—except perhaps for the young household members, whose thoughtlessness might be encouraged by it. For educational reasons, I strongly oppose that.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
B
bubbas
2 Apr 2019 20:08
@11ant:
Ah, okay, then you mean the service shaft. Yes, I need that somewhere, so I don’t see how to do it differently if it’s not built with masonry.

@Escroda:
Thanks a lot for the tips, I’ll try to do it that way. Otherwise, it would be a real shame to have to make the house smaller because of the terrace. Let’s see if that’s feasible.
11ant3 Apr 2019 00:29
bubbas schrieb:
Ah ok, then you mean the service shaft.

What else would it be?
bubbas schrieb:
I don’t know how to do it differently if not built from masonry.

Building such small structures from masonry stopped around the same time as the Berlin Wall came down.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/