Floor plan design and orientation of urban villa, 2 residential units

Hello,

I want to build a city villa with 2 residential units with Dennert.
Construction is planned in Neustadt, district Marburg Biedenkopf, Flur 20, plot 16/2.
You can check it out in the geodata for Hessen. The plot would be split almost half and half. Which half we will use ourselves is not yet decided. The other half will be taken by the younger sister.
I’m not quite sure how to position the house so that, for example, a balcony can be used above the garage, possibly facing south-southwest.
Could you possibly help me with that?

The plot is listed on Immobilienscout24 Scout-ID: 70642775 (just enter the Scout ID on Google).

I know that without a development plan it’s not much use but the plot has not been purchased yet. See my created question in Bauland, Verträge, Baurechttipps.

The neighboring development is set back 3 meters from the plot, however, there is an old house directly on the property boundary. Therefore, I would suggest to plan everything with a building field starting 3m from the property boundary.

Bebauungsplan/Einschränkungen
Plot size: 1962 divided by 900
Slope: none
Grundflächenzahl
Geschossflächenzahl
Building window, building line and boundary: possibly 3m from the street
Edge development: garage yes
Orientation: that’s the question, what is best?
Maximum heights/limits: neighboring houses have more than 7m eaves height
Development plan not yet available

Requirements of the builders
City villa
without basement
Parents 60 and 63 on the ground floor, sister 37 with child 7 and 2nd child 17 who does not live there all the time on the upper floor
about 90 sqm per residential unit
Definitely a guest room on the ground floor
very open architecture
modern construction
open kitchen, kitchen island: both yes
Number of dining places: ground floor 8, upper floor 6
Balcony, roof terrace: balcony possibly above double garage
Garage, carport: double garage with door to utility room

House design
Who made the plan:
- Do-it-Yourself
Personal price limit for the house, including equipment: 400,000
Preferred heating technology: air-to-water heat pump eligible for Bafa subsidy with ventilation system and photovoltaic with storage

If you have to give up, on which details/extensions
- you can do without: If it doesn’t make sense KfW 40+, balcony over garage, garage if necessary, sanitary objects possibly procured by ourselves
- you cannot do without:

Why is the design as it is now? For example
What makes it particularly good or bad in your eyes? Discussed with parents and sister what they want

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

Whether it is feasible as it is and whether the location on the plot is okay. Also suggestions for improvement and possibly, since I can’t do it, to save the floor plan properly in a file, not Paint (sorry, I’m too dumb for that).

It would be great if someone here could help me!

The proposed division of the property doesn’t tell me much; I can’t tell where the neighbors are and where a street is. If a neighboring house is directly on the boundary, I would expect a setback agreement, i.e., the previous owner will have recorded the burden in his land register to maintain 6 meters distance between two houses on his side alone. I wouldn’t commit to a building material yet. I don’t quite understand the project: You show a two-family house the size of a single-family villa and mention a sister living there and another sister on the other half of the property. Where do you fit into this scenario? The notes on the property references are almost commendable – but I don’t have time to follow up on them.

Ah ok, there is a street under the property (more like an alley) and a street to the left. I thought I was not allowed to post links, hence the explanation. There is no neighboring house in the immediate vicinity of the property.

I am planning for my parents and the older sister. The younger sister is getting the other half of the property. There is nothing for me. I already built 8 years ago.

I thought I was not allowed to post links, that's why the explanation.

That is correct - but we give free tips here, there is no time to go look for the properties. Screenshots of cadastral maps or aerial images would be more helpful.

There is nothing there for me. I already built 8 years ago.

Uh, I didn't really read any planning experience from the floor plans :-("

Please add dimensions and furniture to the floor plan to scale

Ah ok, there is a street under the property (more like an alley) and a street on the left.

A drawing with measurements, matching the text, would be helpful. I only see rectangles.., and yes, they are supposed to be rooms. But I really don't know what to make of it.

Whether it is feasible and whether the location on the property is okay

Color the existing trees with a green colored pencil, the street in gray, and add a few lines with measurements for the property. And don’t forget north.