ᐅ Floor plan design for a two-family house on a hillside

Created on: 16 May 2017 14:23
S
sichtbeton82
Hello everyone,

I would appreciate your feedback on the floor plans.

Development Plan / Restrictions:
· Plot size: 1,200 m² (18 m (59 inches) wide)
· Slope: south-facing hill, street to the north
· Site coverage ratio: 0.3
· Floor area ratio: 0.6
· Building envelope, building line, and boundary: see "enlarged building envelope" 12 x 14 m (39 x 46 feet)
· Edge development: garages
· Number of parking spaces: 3 required according to building authority
· Construction type: open building layout
· Building setback: 3 m (10 feet)
· Roof type: pitched roofs 15-30°, hipped roofs to be avoided, see regulations
· Orientation: ridge direction of the buildings parallel to each other
· Exterior design: see section 6 of the regulations


Homeowners’ Requirements

Preliminary: The homeowners (born 1982 male, 1988 female, and two children born 2014 female, 2016 male) want to live on two floors (basement and ground floor). A third children’s bedroom should also be included. The third floor (attic) should be accessible barrier-free.

· Style: Bauhaus (optionally exposed concrete)
· Roof design: large south-facing side (for solar panels, photovoltaics)
· Building type: two-family house
· Basement and floors: basement, ground floor, attic
· Number of occupants and ages as above: (2 + 3 in basement and ground floor, 2 + 1 in attic)

o Space requirements attic: 2 bedrooms, 1 flexible floor plan bathroom, open living/dining/kitchen area, utility room
o Space requirements ground floor: 1 master bedroom, walk-in closet, master bathroom, large open living/dining/kitchen area, wardrobe, storage room
o Space requirements basement: 3 children’s bedrooms, children’s bathroom, optional play corridor, boiler room, cellar, utility room

· Open or closed architecture: open
· Conservative or modern construction: modern
· Kitchen: open kitchen with island (at least on ground floor)
· Balcony, roof terrace: likely sensible on all three floors considering exposed concrete
· Parking spaces: carports if possible, which can later be converted into garages (initial cost saving)
· Heating/thermal technology: air-to-water heat pump (underfloor heating), optional photovoltaics
· Windows: large window areas on the south side, optionally wide, low windows above the kitchen worktop on the ground floor
· Energy efficiency: KfW 55 standard
· High sound insulation (especially for the ceiling of the attic, separate residential unit)

East view: sketch with stacked rectangles, diagonal line and hatched triangle.


Elongated plot marked in yellow on a site plan with parcel numbers.


Ground floor plan: living/cooking area, master bedroom with walk-in closet, bathroom, WC, hallway, terrace.


Hand-drawn basement floor plan with hallway, cellar room, bathroom, and three children’s bedrooms.
H
haydee
22 Nov 2017 12:41
I wonder if that might turn out a bit sour. *thinking*

Create it in a terraced layout. There is no other way.
S
sichtbeton82
20 Jun 2018 14:53
A long, long time—too long—nothing has happened here. The delay was due to the pending building permit / planning permission. However, we have now finally received a verbal approval, so construction will resume soon. The permitting process was exhausting! I wouldn’t wish that on anyone. As soon as we have the written authorization, we will also share updated photos of the floor plan.

An explanation will follow in this post: https://www.hausbau-forum.de/threads/Berechnung-mittlere-hoehe-kg-Abzug-stuetzmauer.27212/#post-255433
S
sichtbeton82
13 Jul 2018 09:01
The building permit has been approved. We can finally get started. Even before the work began, it has already been a very unpleasant process so far... :-( It took 201 long days to get the approval.

Dealing with the authorities was really difficult. The term "minor excavation" does not exist for them. In the end, the original building application was withdrawn and a new one was submitted, which is now approved. As a solution, the basement level was expanded towards the north.

Attached are the current floor plans and elevations/section.

Basement floor plan: basement rooms, bathroom, hallway, and 3 bedrooms with staircase.


Ground floor plan: open-plan kitchen and living area, bedroom, bathroom, hallway, entrance area, terrace.


Upper floor plan open space: open-plan kitchen and living area, hallway, bathroom, two bedrooms, terrace.


Architectural plan of a multi-story building with north, east, south, and west elevations and section.
M
matte
13 Jul 2018 09:30
I still don’t understand why there is such a strong reluctance to separate the parents’ area?!

Guests will hardly use the main bathroom since there is a guest toilet, but children might still go in. The advantage would be a certain level of privacy.

I’m only thinking about the scenario where the husband is playing cards with friends at the dining table, and the wife is already in bed in the bedroom wearing her nightgown. If she needs to use the bathroom, she can only get there through the small, useless corridor, where she is basically on display.

With very minor changes, a walk-in closet could be added without any disadvantages...

Also, I would connect the shower screen to the upper wall of the plan. As it is now, the wet corner is right at the bathroom entrance, where you step out of the shower. This is an unavoidable obstacle for anyone wearing socks.

Where do you plan to have a wardrobe? With two small children (soon three), I imagine the small entrance area feels quite cramped.

Ground floor layout: Open living/kitchen area with terrace, bedroom, bathroom, hallway, and entrance vestibule.
S
sichtbeton82
13 Jul 2018 12:25
Thank you very much for your suggestions. We will discuss the redesign of the dressing room once again. Regarding the shower, it is clearer. I always based my measurements on the marked 2.38 m (7 ft 10 in). I thought the wall would be about 1.80 m (5 ft 11 in) long, but it is only 1.20 m (3 ft 11 in). This will very likely be corrected according to your suggestion. Thanks!

At the moment, the "energy concept" is still on my mind. Unfortunately, no data such as heating load or prices are available yet. For me, the following three options are available (but it is very difficult to decide, as there are currently many possibilities).

a) Heat pump supported/operated by both photovoltaics and solar thermal energy
b) Heat pump supported/operated by photovoltaics and geothermal energy
c) Heat pump operated solely by photovoltaics

From the perspective of incorporating as much renewable energy as possible, I find options a) and b) good. However, option c) is significantly simpler and, I fear, not less economical.

Skizze eines Hauses mit Haustechnik: Heizung, Wärmepumpe, Heizkreisverteiler und Rohrführung.


Technische Skizze eines Heizungs- und Solarenergie-Systems im Haus mit Rohren
kaho67413 Jul 2018 13:08
Congratulations on obtaining the building permit!

I would definitely support changing the matte finish immediately.
What really bothers me, however, is the narrowness at the entrance. You almost stumble down the stairs when you come in.
If it were my house, I would remove the straight staircase and the storage room. Part of the basement could be sacrificed for a half-turned staircase. But of course, this is a matter of personal taste—especially since the storage room would then be missing, whatever it was intended for.

I find the vestibule too small, and the cloakroom correspondingly so. The skylight above the shower is a great idea, but a functional cloakroom would probably be more important to me in that location.

Ground floor plan with sleeping area, open-plan kitchen/living room, bathroom, hallway, vestibule, and terrace.

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