Floor plan bungalow with gable roof - optimization potential?

Hello
Attached is our floor plan for a bungalow with a gable roof (storage space under the gable roof).
Kitchen and bathroom fittings still need to be planned. Only the room size is defined there. Doors can still be moved a bit.
At the level of the stairs, a windbreak can optionally be installed. (Less heating needed). The terrace will be semi-circular in the front, so a bit larger.
The main focus should be on interior optimization.
The maximum dimensions for the floor plan in width have been exhausted - unfortunately. 1 meter more would have been better.

What else could be optimized?

I have attached the plan as PDF and JPG

Thank you

Development plan/restrictions
Size of the plot: 612 m²
Flat
Floor area ratio - No restrictions - normal building rights 80% of the area may be built on
Floor space index - No restrictions - normal building rights
Building window, building line and boundary - drawn in - regulation according to Hessian building law
Edge development - NO
Number of parking spaces: 1 parking space and 1 carport
Number of floors: 1
Roof type - gable roof
Style: Bungalow with storage space under the gable roof and a small studio for the junior later
Orientation: Living room facing south
Maximum heights/limits: None

Requirements of the builders
Style, roof type, building type - Bungalow
Basement, floors - 1
Number of people, age: 3 (38, 38, 1)
Room requirements on ground floor, upper floor -
Office: family use or home office? -
Overnight guests per year - 5
Open or closed architecture - closed
Conservative or modern construction - conservative
Open kitchen, kitchen island - semi-open
Number of dining seats - 3 in kitchen
Fireplace - No
Music/stereo wall - No
Balcony, roof terrace - No
Garage, carport - Carport next to the house, parking space in front of the house
Utility garden, greenhouse - No
Additional wishes/special features/daily routine, also reasons why this or that should or should not be - Quiet area and living area somewhat separated

House design
Who is the planner:
- Architect + Do-it-Yourself
What do you particularly like? Why? - Quiet area on the right side of the plan. Living area on the south side
What do you not like? Why? - Parents’ bedroom suboptimal
Price estimate according to architect/planner: 300,000
Personal price limit for the house, including equipment: 300,000
Preferred heating technology: To be developed with HVAC energy planner

If you had to give up, on which details/extensions
- can you do without: /
- cannot do without: /

Why did the design turn out the way it is now? For example:
Standard design from the planner? - No, our wishes were tried to be implemented
Which wishes were implemented by the architect?
Quiet area somewhat copied from a prefabricated house provider

What makes it particularly good or bad in your eyes?
Parents’ bedroom with continuous wardrobe - passage from bed to wardrobe too narrow (only about 50 cm)…

Two things strike me spontaneously: first, that including the terrace it is a rectangular floor plan (and I would consider designing the gable roof accordingly and not as over an L-shaped floor plan); and second, the unusually generous use of 24 cm interior walls. The only child question is completely messed up?

The interior walls should be 17.5 cm limestone to ensure sound density. On some insignificant walls, 11.5 cm calcium silicate brick. The roof construction consists of two abutting gable roofs. I can add that again this evening. Children will no longer.

The roof structure consists of two gable roofs meeting at a joint. I can add that again this evening.

You don’t need to, it is recognizable. And that’s also how I understood it, but I merely suggested a different variant. Due to the construction, it is more cost-effective and because of the mostly south-facing terrace, you will be grateful for more shade. It doesn’t have to become dark because of it.

To translate from "Rüsseltier" to "Baudeutsch for dummies": 11ant suggests roofing the terrace in such a way that you simply place a basic rectangular gable roof on the L-bungalow. Both costs and shading benefit.

By the way, I approve of the idea. I find the floor plan okay. I don’t like kitchens with two doors.

Thank you, I have now understood it as well. It is a good idea.