ᐅ Single-family detached house, townhouse style, approximately 180 sqm, plus a 70 sqm accessory apartment – open floor plan

Hello everyone,
my wife (28) and I (34) are currently finalizing the planning for our single-family house with a separate apartment.
I have read a lot in this forum in the past to get inspiration for designing the perfect floor plan for us. I hope the information below is sufficient; otherwise, I’m happy to provide more details.

Brief explanations:

• Plot size 775
• The separate apartment is required because otherwise, we would not be able to acquire the plot. The current owners of the property (an old building that needs to be demolished) will live in the separate apartment and pay us monthly rent.
• We would prefer the basement stairs to be in the storage room, but this might be too tight. Therefore, the basement stairs may be planned above the office. Exact dimensions and feasibility are currently being checked by the architect.
• There is a guest coatroom at the entrance; the family coatroom will be designed as a built-in wardrobe in the hallway to the garage.
• The storage room marked in red is correct, we had to move the stairs slightly to the right 🙂
• Not all doors are currently shown, sorry.
• Laundry chutes planned in the master and children’s bathrooms.
• Orientation was not quite right and was adjusted afterward 🙂

Once the first draft from the architect is available, I will of course upload it.

Development Plan / Restrictions
Plot size: 1028 sqm (11062 sq ft)
Slope: No
Floor area ratio: 0.3
Floor space index: 0.6
Building zone, building line, and boundary: 15*~28 m (49*~92 ft)
Perimeter development
Number of parking spaces: 1 per dwelling unit according to the development plan
Number of floors: 2 for the main house, 1 for the separate apartment
Roof type: hip roof or flat roof
Style:
Orientation: south, southwest
Maximum heights/limits:
Other requirements: open construction style, two stories

Homeowners’ Requirements
Style, roof type, building type: townhouse style, hip roof
Basement, number of floors: yes, possibly partial basement
Number of occupants, ages: 2 adults (34, 28), 1 baby, another child planned
Room requirements on ground and upper floors:
Ground floor – living room, kitchen, storage room, office, guest toilet;
Upper floor – child 1, child 2, master bedroom, dressing room + storage, master bathroom, children’s bathroom
Office use: home office
Guests per year: 0
Open or closed layout: open
Conservative or modern design: modern
Open kitchen, cooking island: open kitchen with island
Number of dining seats: 6
Fireplace: no
Music/audio system: 5.1 surround system
Balcony, roof terrace: no
Garage, carport: double garage
Utility garden, greenhouse: possibly later
Additional wishes/particulars/daily routine, also reasons why certain features are preferred or excluded

House Design
Who designed the plan: DIY, architect
-Builder’s planner
-Architect
-Do-it-yourself
What do you like most? Why? Open construction style, orientation, cantilever staircase
What do you dislike? Why? Access to the basement is currently not ideal
Estimated price according to architect/planner: 600,000 (currency not specified)
Personal budget limit for house including fittings:
Preferred heating technology: geothermal energy with ring trench, heat pump, underfloor heating, ventilation system

If you have to give up on something, which details or features
-could you give up on: gallery
-could you not give up on: open construction style

Why did the design turn out the way it is now?
Own preferences and thoughts, research of many floor plans. Separate apartment distinct from the main house.

What is the most important/basic question about the floor plan in 130 characters?
Is the room layout sensible? Any clever ideas? General feedback on potential issues. Open criticism welcome, I appreciate all hints.

Thank you in advance.
Tobi

The house is too small to afford the luxury of a second staircase area just for the basement steps, solely to showcase a cantilevered staircase as a sculptural feature. You will surely find more suitable gimmicks to impress your circle of friends with a unique custom home. Otherwise, as usual from me, thanks first for the classic analog hand-drawing.

Gobi1307 schrieb:

The granny flat is necessary because otherwise we cannot acquire the plot. The current owners of the property (an old building that must be demolished) will live in the granny flat and pay us a monthly rent.

In my opinion, the concept of the retirement house should become much more widespread.
Furthermore, I would suggest checking whether offsetting the purchase price against the value of a right of residence would be more advantageous for all parties involved.

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Thank you for the quick response.
A cantilevered staircase is under consideration, but we are more interested in a straight staircase in the open living area.

We have already reviewed the scenario with the accounting, going through several rounds with the notary and another tax advisor.

Any other suggestions?

Placing the basement stairs at the end or to the side of the straight staircase shouldn’t really compromise the open-plan design much. If you want it to remain completely open, you could even consider omitting a basement door altogether. Just a thought to throw out there:

I'm not sure if I fully understood you correctly. What do you mean by beside the straight staircase?

Our dream layout would be like in your picture, but then you would be looking directly down the basement stairs when sitting at the dining table :/

Gobi1307 schrieb:

Our dream setup would be just like in your picture, but then you would be looking straight down the basement stairs while sitting at the dining table :/

The view of the young lady’s fingers on the glass wall would reliably distract me :-(

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