Floor plan of a bungalow on already used land

Hello,

I am sharing my floor plan as we developed it. Maybe there are still some suggestions?
The dimensions are the interior measurements of the rooms; we assumed a wall thickness of 10 cm. Depending on the actual wall thickness, this must be adjusted.

Size of the plot: 1200 sqm
Slope: no
Floor area ratio: unknown, but irrelevant
Floor space index: unknown, but irrelevant
Building window, building line and boundary: there is no development plan, the new house should be located where our current house stands (only the distance to the neighbor must be increased to 3 m), which according to the responsible building authority is no problem
Edge development: no
Number of parking spaces: garages already exist and should remain
Number of floors: bungalow, single-story
Roof shape: gable roof or hip roof
Style?
Orientation: roof in east-west direction
Further requirements: the plot is only about 16 m wide, so the house must not be larger than just under 10 m in this direction

Requirements of the builders
Style, roof shape, building type: bungalow, preferably gable roof
Basement, floors: no basement, only 1 floor, storage room in the attic
Number of people, age: 2 people, 55 and 58
Space requirement on the ground floor: approx. 100 sqm
Office: family use or home office: no
Guest bedrooms per year: 2 grandchildren occasionally, father occasionally
Open or closed architecture?
Conservative or modern construction: rather conservative
Open kitchen, cooking island: open kitchen
Number of dining seats: 4
Fireplace: yes, absolutely
Music/stereo wall: no
Balcony, roof terrace: no
Garage, carport: already existing
Utility garden, greenhouse: garden already established

House design
Who created the design:
- Do-it-yourself, created based on various templates
What do you especially like? Why?: large window front on the south side with the possibility to go directly into the garden
What do you not like? Why?
- Corner in the hallway between the utility room and the bedroom, but the hallway should remain large so that you don’t always step on each other's feet and there is enough space for motorcycle gear,
- I would like to place the fireplace rather in the corner between kitchen and living area, but that does not comply with the distances to the neighbor according to the immission control regulation
Price estimate according to architect/planner: first offers are just under €190,000 for about 110 sqm, but changes still have to be made
Personal price limit for the house, including equipment: it should not exceed €200,000 plus ancillary building costs; equipment we already have
Preferred heating technology: gas condensing boiler, as gas is already connected

If you have to give up, which details/extensions
- can you do without: none
- cannot do without: underfloor heating, large window front, fireplace

Why did the design turn out as it is now?
All wishes were implemented as far as possible

What is the most important/fundamental question about the floor plan summarized in 130 characters?
Is there something that absolutely does not work? Is there potential for improvement? What would you do differently? Where can it possibly still be optimized?

the new house is supposed to stand where our house already stands

So not a second house as the headline might suggest, but just a replacement for an existing building to be demolished. What is the reason for its demolition? Show the plot for that. Floor area ratio / floor space index don’t matter haha, but with a 1200 sqm plot it should probably be effectively like that ;-) How is the drawing oriented?

I am not aware of any floor area ratio below 0.2, so I should be allowed to build 240 sqm, so it doesn’t really matter, right?
And with a bungalow, I shouldn’t have any problems with the floor space index either.
I’m attaching the plot layout. The new house will be placed where the house with the red roof is now, just a bit further to the right (east). The small red-roofed cottage will be removed.

The reason is the condition of the old house, a 70s GDR construction, put together somehow, ceiling heights of max. 2.30 m, no underfloor heating, no way to connect the kitchen to the living room, all convoluted and cramped. You can live in it, but with any possible renovations it will never really be nice. And now there is some money in the account with which a nice house should be built.

Hello , welcome to the forum, your description reads like ours, bungalow on a 16m wide plot, without Corona you could come and have a look sometime

Where do you live?

Oh, the floor plan above is rotated 180 degrees relative to the plot.

We in the surrounding area. That would fit. Do you see Corona as an obstacle? Meeting with another household is still allowed.