Floor plan design single-family house with VPD and double garage

Development plan/restrictions
Plot size - 1493 m²
Slope - no
Site occupancy index - 0.4
Floor space index - 0.8
Building window, building line and boundary - open style, single and semi-detached houses permitted, Bavarian Building Code
Edge development - no
Number of parking spaces - 2 in double garage
Number of floors - 2 full floors
Roof type - staggered shed roof, pitch 15°
Architectural style - modern?
Orientation - northwest
Maximum heights/limits - unknown
Further requirements: Everything permitted according to the development plan

The development plan is not yet public, so I am refraining from providing an image of the location in the development plan, but you can see our plot marked in green on the Google Earth image.

Requirements of the builders
Architectural style, roof type, building type
Basement, floors - 2 without basement
Number of people, age - 2 adults approx. 30, 1 child 1 year
Space requirements on ground floor, upper floor - not defined
Office: family use or home office? - no
Guests per year - unimportant?
Open or closed architecture - closed
Conservative or modern construction - modern
Open kitchen, kitchen island - yes, if applicable
Number of dining seats - 8
Fireplace - no, but chimney to be prepared
Music/stereo wall - maybe
Balcony, roof terrace - only terrace at ground level
Garage, carport - large double garage
Utility garden, greenhouse - no

House design
Who is the planner:
Do-it-yourself with friend as draftsman
What do you particularly like? Why? Own floor plan, passage from garage into house (dry entry, store shopping in pantry)
What do you not like? Why? Currently satisfied
Price estimate according to architect/planner: €380 per m³ of enclosed space = approx. €275,000 without garage
Personal price limit for the house including equipment: €350,000 including garage
Preferred heating technology: heat pump (ring trench collector), photovoltaic, controlled residential ventilation, KNX, possibly alarm system

If you had to give up, on which details/extras
- you could give up: no thoughts made yet
- you could not give up:

Why has the design become what it is now?
Own design based on many examples and own ideas.

What is the most important/fundamental question about the floor plan summarized in 130 characters?
Do we have major planning errors, useless layouts, design flaws etc.?
It is important to us that we do not plan any errors/problems that cannot be fixed later.

Thank you for your opinions
Regards
Marco

Do we have major planning errors, useless divisions, design flaws, etc.?

No and yes. This is already a much less clumsy draft than what many homebuilders use to start their threads here. The plan is neat, there are no major blunders in the dimensions. Supply and drainage planning are not the favorite topics of this draftsman. I consider the technical room and the utility room / pantry next to it to be somewhat generously sized together and would boldly venture to say that the technical room could be integrated there. I would prefer more dancing space between the kitchen and dining area in the living room. My botch hit list places the guest room at number 1 and the second children's room at number 2. I like the edge on one side in the floor plan, where the two roof surfaces meet – I miss that on the other side. The window strip gets a plus from me; offset shed roofs with blind gables look strange. Draw the outlines into the aerial view, and add a north arrow to the floor plans.

Thanks first of all, I was expecting worse!

... Supply and drainage planning are not this draftsman’s favorite topics....

I have to put a protective hand over that; if the specification is not yet clear where we will drain the plot, it would be unnecessary/duplicate work. I still have to clarify this with the municipality once the development plan is official.

I consider the technical room and the utility room / pantry next to it somewhat generously sized combined and would dare to say boldly that the technical room could be integrated there.

Well, this partly grew out of my wife. Quote: "If I don’t get a basement, then I need a big utility room." So we tried to plan it as big as possible here, also a pantry accessible from the garage and kitchen.
Honestly, I was a bit worried about the “appearance” of this room when integrating water meter, electrical distribution, telephone, heating, hot water tank, controlled residential ventilation, which is why the “small room” is attached to the garage/house.

I would have preferred the dance floor between the kitchen and dining area to be bigger in the living room.

Yes, good point! We planned generously here because we also want to be able to put a second large table for a celebration.

My botched list has the guest room in first place

Because of the room layout? If yes, then I agree with you, it’s also an eyesore for me, but I haven’t found a nice solution yet. Besides, it will be a storage room 98% of the time since we don’t have a basement.

... second place goes to the second children's room.

Why, because of the two doors? We eliminated that; he didn’t know where to put them, and we decided on the upper one, the left one is off.

I like the edge on one side of the floor plan, where the two roof surfaces meet - I miss that on the other side.

Thanks, that’s what I wanted so the house doesn’t look so “massive” at first glance. I had it in the original version at the back of the house (garage), but that’s now gone... I’m still thinking about it!

You get a plus point from me for the ribbon window; I find offset shed roofs with blind gables strange.

Thanks, originally it was planned “without” too, but I think this is better for the brightness.

Draw the outlines on the aerial photo, and add a north arrow to the floor plans.

I have to catch up on that when we meet again.

Another point:
We wanted to pep up the children's rooms a bit: each adjacent bedroom and guest room is to get a ceiling, and the children’s rooms completely without. This way we want to create a “small” play paradise. The ceiling height will be low, but we’ll see if it works. Then we would also have light up there through the two windows. Access with ladder + railing

Drainage: I meant the downpipes of the main bathroom went through the hallway and the children's bathroom could be located closer above the kitchen and such things.

In the guest room, you couldn't even rotate the bed by 90°, the floor plan there is so unfriendly to furnishing. Also, in the second children's room, an improved access situation needs to be created.

Many cuts will still be made to your plan here, so these are partly details that would then be worked on with a file in further drafts. I didn't even criticize small things for two reasons: first, they may already have been resolved in later versions, and second, they are easily fixable spots that are hardly noticeable.

This is all from me for now just as initial feedback, there will surely be contributions with quite different perspectives.

That was the first draft with the offset at the back as well, but then the guest room looks even worse.

Additionally, we want a roof over the front door, probably concrete, which is still missing in the draft.

Here with north arrow

Where is the exterior wall of the third gable located in the attic?