ᐅ Floor plan of a new multi-family house with 3 residential units, total living area approximately 350 m²

Hello everyone,

I have purchased a plot of land and would like to hear your opinions on the design.
The plan is for a multi-family house with 3 residential units, one apartment per floor. Possibly, we would use a room in the ground floor stairwell area as a laundry, storage, and utility room. The house should have a modern and functional layout, ideally with plenty of natural light and an open living, dining, and kitchen area. It is also very important to me that each apartment has a balcony or terrace where residents can comfortably sit and spend time.

Here is the brief:

Zoning plan / restrictions
Plot size – 523m² (5,628 sq ft), 19m (62 ft) wide, 27.5m (90 ft) deep, rectangular
Slope – no
Site coverage ratio – 0.4
Floor area ratio – 0.8
Building setbacks, building line, and boundaries – 5m (16 ft) from the street, 3m (10 ft) from neighbors, no boundary restrictions to the garden
Edge development – "On every building plot, a free-growing hedge or trimmed deciduous hedge must be planted and maintained along at least one plot boundary." Nothing more was found in the zoning plan.
Number of parking spaces – 1.5 per residential unit
Number of floors – 2 full stories
Roof type – all roof types permitted
Architectural style – no specifications
Orientation – south-facing
Maximum heights / restrictions – main building max 11m (36 ft), stairwell max 7m (23 ft)
Other requirements – none that have significant influence on the design

Client requirements
Style, roof type, building type – modern multi-family house with 2 full stories plus a recessed top floor with a flat or mono-pitched roof
Basement, floors – no basement, 2 full stories plus recessed top floor
Number of residents, age – unknown, approx. 3-5 people per unit
Room requirements on ground and upper floors – ground and first floors approx. 130m² (1,400 sq ft), attic floor approx. 90m² (970 sq ft)
Office: family use or home office? – family use
Occasional overnight guests per year – few
Open or closed architecture – no preference
Conservative or modern construction – modern
Open kitchen, kitchen island – open kitchen without kitchen island (too expensive 😀)
Number of dining places – 1 per unit
Fireplace – no
Music / stereo wall – no
Balcony, roof terrace – yes, balcony is very important for the apartments on the first and attic floors
Garage, carport – no, outdoor parking spaces
Utility garden, greenhouse – no
Other wishes / special features / daily routine, including reasons for these choices – It is important to me that the apartments are designed so tenants want and can live there long-term. Therefore, I am considering a laundry room on the ground floor that can also serve as a utility and storage room. Otherwise, the apartments should have sufficient space on the balconies.

House design
Designed by – my brother is a civil engineer who designed the plans
What do you particularly like? Why? – large living, dining, and kitchen area on the ground floor, number and size of bedrooms
What do you dislike? Why? – the terraces on the ground floor are located at the west corner with the exit there, and the balconies on the first and attic floors are in the east corner
Estimated price according to architect / planner: €520,000 including VAT. I am contracting the trades myself.
Personal budget limit for the house, including fixtures: €520,000
Preferred heating technology: district heating is more or less required by the city

If you had to give up something, on which details / extras could you do without?
- Could give up: open kitchen, guest toilet
- Could not give up: balcony, terrace, storage room

Why is the design like it is now? For example:
Standard design from planner? – It is already adapted to the plot conditions and our ideas. But I am not sure if it is "right" for a multi-family house. Especially the issue of balconies and the laundry/storage room—I am not sure if these all fit well.
Were client wishes implemented by the architect? Basically, all wishes were implemented. I am just not sure if our wishes are the "right" ones or if something could be better done.
A mix of many examples from various magazines...
What makes the design particularly good or bad in your opinion?

What do you think of the designs? How do you find the layout? What do you think about the laundry/storage room on the ground floor?
What do you think about the balcony situation?

Thanks for your feedback!
nevzatc21