ᐅ Floor Plan Design Single-Family Home, 1.5 Stories, 150 sqm – Feedback Welcome

Hello everyone,

We have our first appointment tomorrow to plan our house, and I have already started designing a bit and would appreciate your opinions.
So far, I have only completed the ground floor; the upper floor will include three bedrooms and a bathroom with a bathtub. The garage will probably serve more as storage space than as a parking area for cars.

Development Plan / Restrictions
Plot size: 2000 sqm (about 0.5 acres)
Slope: no
Site coverage ratio
Floor area ratio
Building envelope, building line and boundary: building envelope approximately 260 sqm (2800 sq ft)
Edge development: no
Number of parking spaces: 2 garage/carport
Number of stories: 2
Roof type: gable roof or shed roof
Architectural style
Orientation: southeast
Maximum height/limits: 9 m (30 ft)
Additional requirements: maximum of two additional volumes, garage must be attached to the house

Homeowners’ Requirements
Architectural style, roof type, building type: gable roof
Basement, floors: no basement, 1.5 stories (approximate meaning of “15 geschossig” as half story or attic space)
Number of occupants, age
Space requirements: about 90 sqm (970 sq ft) ground floor + 60 sqm (645 sq ft) upper floor
Office: family use or home office? no
Guest bedrooms per year: 2–3
Open or closed architecture: open plan
Conservative or modern design: modern
Open kitchen, kitchen island: kitchen island or counter without seating
Number of dining seats: 6
Fireplace: yes
Music/sound wall: no
Balcony, roof terrace: no
Garage, carport: 2
Utility garden, greenhouse: no
Additional wishes/special features/daily routine, including reasons for choices: A bedroom with an en-suite bathroom is desired on the ground floor, initially to be used as a guest room and later as the main bedroom in old age.

House Design
Planner: myself
- Planner from construction company
- Architect
- Do-it-yourself
What do you particularly like? Why?
What do you dislike? Why?
Price estimate from architect/planner: not yet available
Personal budget for the house including fixtures: €400,000 without land (except for heating and screed, theoretically everything else could be done as self-build)
Preferred heating system: heat pump with underfloor heating and ventilation system with heat recovery

If you had to give up on certain details or extensions
- What can you give up:
- What you cannot give up: 4 bedrooms, one full bathroom per floor, and a separate guest toilet on the ground floor.

Why is the design as it is now? For example:
Standard design from planner? First attempt to put our own wishes into a floor plan
Which wishes were realized by the architect?
A mix of many examples from various magazines...
What do you think makes it particularly good or bad?

What is the most important/basic question about the floor plan in 130 characters?

Does the floor plan work as it is, or have I made some major mistakes?
We want to leave a part of the ground floor open up to the roof, possibly with a gallery. We are unsure whether the open part should be at the entrance area or partially above the living/dining area. We are uncertain which option makes more sense.
That is why planning the upper floor is difficult, figuring out how to accommodate the three bedrooms and the bathroom, and we would appreciate ideas.

PS: This concerns Lot 5, which was enlarged to 2000 sqm (about 0.5 acres) after purchase. Only the older plans show the access road and orientation. Only Lots 1 and 3 are built on, our friends bought Lot 4 and will build roughly at the same time, and the other lots have been meadows for over 20 years, unlikely to change soon.

Where is the plan?
…the colored rectangles are more like basic ideas for the location and orientation of possible rooms…
A view of just one floor is not helpful. Both floors need to be examined together, as they are interdependent.

"Marshy terrain" is "not cheap" to build on / foundation work / drainage ...

Narma89 schrieb:

So far, I have only "finished" the ground floor,

At least it is just a room layout and not yet a full floor plan. A recommended design sequence is: room program – upper floor – ground floor. Starting with the ground floor is difficult; amateurs regularly get frustrated by this and then often write here: "semifinal / 95% satisfied, unfortunately half of it still doesn’t work" 🙂

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I am more concerned about the contour lines and two watercourses with a swamp area on the right plan. Is the right plan oriented to true north? (Is north at the top?)

On the buildable area, there are already 4 contour lines at 1 m (3.3 ft) intervals. The statement that there is no slope seems to be a misjudgment.

The building area is 225 m² (2,421 ft²), not 260 m² (2,796 ft²). It might be possible to extend the building area towards the new boundary. In that case, the house should definitely be positioned as far as possible up the slope. The building setback line in the old plan was 4 m (13 ft).

Access road 20 m (66 ft) across a swamp? Is it allowed to fill in the ditch with a pipe inside it? What are the expected water volumes?

Keep us updated on the outcome of the planning meeting.