ᐅ House on a slope with two separate apartments

Created on: 23 Sep 2019 08:23
A
Alkaral
Development Plan / Restrictions
Plot size: 774 m² (8,330 ft²)
Slope: 13%, as shown on the site plan
Floor area ratio (FAR): 0.4
Building coverage ratio: 0.5
Building envelope, setback lines, and property boundary: 11 x 15 m (36 x 49 ft), as shown on the site plan
Number of floors: 2 full stories
Roof type: Gable roof, 30° pitch
Orientation: Ridge running NE-SW

Requirements of the Homeowners
Style, roof type, building type: Main residence with 2 accessory apartments (one in the attic, one smaller in the basement)
Basement, floors: Basement (UG), ground floor (EG), upper floor (OG), attic (DG)
Number of occupants, ages: 1975m, 1980f, 2007m (mostly lives with partner from previous marriage), 2009f, 2019m, (expected 2020m/f)
Space requirement on ground and upper floor: from 200 m² (2,150 ft²)
Office: Family use
Guests per year: Apart from resident born 2007 (male), about 6
Open or closed architecture: open plan
Traditional or contemporary design: modern
Open kitchen, kitchen island: yes
Number of dining seats: 6
Fireplace: no
Music/stereo wall: Home theater system in the living room
Balcony, roof terrace: Roof terrace in the attic for accessory apartment 1
Garage, carport: 3 garages, 2 parking spaces
Utility garden, greenhouse: A level garden is planned on top of the garages, with lawn and some bushes around.
Other wishes / special features / daily routine, including reasons for preferences:
  • Ground-level family access via garage and ramp into the basement. Guest entrance on the right side into the ground floor.
  • Separate external staircase leads directly to accessory apartment 1 in the attic. This unit also has a private entrance from above (north side) with garage and parking space (see site plan).
  • Accessory apartment 2 has direct access from the private driveway to the basement and the garage at the left property boundary.
  • Since we are a large family, laundry is often left in the living room. This should change, so we want a generous utility room (with marked ironing board) on the ground floor and possibly an additional ventilation system.
  • The private driveway is used only by us and one other neighboring property behind us. The surroundings have many trees, so there is no real view.
  • Large sliding glass doors from the dining room to the terrace/garden.
  • Good soundproofing between attic / upper floor and ground floor / basement.


House Design
Designer: Do-it-yourself
What do you especially like? Why? Plot with significant slope but still a level garden on top of the garages. Accessory apartment 1 with separate entrance from above.
Personal budget for the house, including outfitting: 1 million EUR in a major city in Bavaria
Preferred heating technology: Heat pump with photovoltaic system on the roof facing southwest
If you have to make compromises, which details/features can you do without: Gable window in the attic
Why is the design the way it is? We want to use the (expensive) plot as efficiently as possible.
What is the key/basic question about the floor plan in 130 characters? Where are the mistakes? Suggestions for improvement? Is the plumbing for bathrooms and kitchens sufficient or should I redesign it?
Unfortunately, I can’t accurately represent the terrain in the design software. If needed, I can scan a section drawing to make it clearer. The garden to the left of the house and above the external staircase will certainly be designed differently later. So far, there is no lawn area marked yet.

Many thanks in advance for lots of inspiring ideas

Grundriss einer Garage mit Doppelgarage, Maßen und Rampe


Grundriss eines Gebäudes mit Einliegerwohnung 2, Familieneingang/Garderobe, Technikraum, Bad.


Grundriss eines Hauses mit Küche, Essbereich, Wohnzimmer, Bad, Schlafzimmer, Terrasse, Maßangaben.


Grundriss eines Mehrzimmer-Hauses mit Schlafzimmern, Bad, Treppen und Maßangaben


Grundriss eines Hauses: blauer Plan mit Zimmern, Küche, Bad und Maßen in cm.


Zweistöckiges braunes Haus mit Holzterrasse und Spiraltreppe.


Dreistöckiges braunes Haus auf Hang mit Dachterrasse, Holzbalustrade, Garage und Außentreppe.


Mehrstöckiges Haus mit Holzterrasse, Balkone und Garage auf grünem Hügel.


Lageplan eines Baugrundstücks mit Garten, Stellplätzen, Privatweg, Nord-Pfeil, Gefälle 13%


Mehrstöckiges Haus auf Hang mit Holzterrasse, Außentreppe und Geländer, grünem Gelände.
11ant26 Sep 2019 16:34
Ikearegal schrieb:

Or was there really a serious question in there?

The question about what fantastic budgets are being spent here is absolutely serious.
Ikearegal schrieb:

Well then, let’s hear your ideas! What constructive input do you have, please?

Around forty of the suggestions I linked in my thread were made by Katja and can all be applied here as conceptual inspiration. It is more than somewhat bold to imply that Katja contributes too little creativity here.
Ikearegal schrieb:

You said such high knee walls are out.

Not at all. Kerstin and I have tried to clarify that it simply makes no sense to place the top edge of the knee wall at a height where you would also want to be able to see through windows.
Ikearegal schrieb:

We are not making the knee wall on the upper floor 200cm (79 inches), but 260cm (102 inches).

That would not only look like the ugly cousin of a certain style and have a counterproductive effect on the sense of space (feeling less like a high knee wall and more like a sloped soffit under the ceiling edge). Moreover, I don’t understand the benefit of this measure regarding setback requirements: these are usually based on wall heights or eave heights; and recessed upper floors are sometimes partially credited depending on how deep the setback is. That more wall height would lead to less setback is at least new to me — although I am not familiar with the local zoning regulations.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
H
haydee
26 Sep 2019 16:56
Where is the official access point to your property?

Is it via the private road or from the north, where the parking spaces for the attic apartment are located?
A
Alkaral
26 Sep 2019 20:30
11ant schrieb:

That would not only look like the ugly sibling of Harry Hirsch and have a counterproductive effect on the sense of space (it would feel like there is no taller knee wall anymore, but rather a sloping recess below the ceiling edge). On top of that, I don’t understand the benefit of this measure for the setback distances: these are usually calculated based on wall heights / eave heights; and recessed stepped floors sometimes partly count depending on the extent of their setback. The idea that a greater wall height should lead to a smaller setback is new to me—although I am not familiar with the local zoning regulations.


Okay, I have since found my mistake myself. The roof is counted as one-third for the calculation of the setback distance (in my case 318 cm (125 inches)), but not the entire attic floor. That counts fully. So it doesn’t help to start the roof slope already on the upper floor.
A
Alkaral
26 Sep 2019 20:31
haydee schrieb:

Where is the official access to your property?

Via the private road or in the north where the parking spaces for the attic apartment are located

Access is from the south via the private road. The northern access was only intended for an upper granny flat, which has now been canceled for many reasons. The garage and parking space in the north are also no longer planned.
A
Alkaral
26 Sep 2019 20:35
kaho674 schrieb:

My house is already built – so, thanks, no. But sure, that was a question. Why do you need two separate apartments? You can just say it. It’s anonymous here, so even if one of them is meant to be a torture chamber, nobody here cares.

The upstairs apartment is long history. If you had followed the thread or looked at the current plans, you would have seen that.
We want to rent out the downstairs apartment and maybe/probably house an au pair there in a few years. It’s no secret, no problem.
A
Alkaral
26 Sep 2019 20:38
11ant schrieb:

The question about what fantastic amounts of money are being invested here is absolutely serious.

Of course. It was already answered in the very first post. However, since the upper basement apartment has now been canceled, we have a somewhat lower budget, which I estimate at around 750,000.