ᐅ Floor plan for a bungalow of 160–170 sqm with a basement

Hello everyone,

finally, we have reached an important step… the plot is signed for.
We want to build with an architect and already have some ideas about what we like and what we don’t.
We definitely want to give the architect the opportunity to apply their expertise regarding the floor plan… maybe they can convince us.

But if not, we are currently (almost) quite happy with this self-drawn floor plan.

A few key facts…
Plot size: 660 sqm (about 7100 sq ft), floor area ratio 0.4, no slope, approximately 26m x 25m (85 ft x 82 ft)
Longest building side allowed: max. 15m (about 49 ft)
L-shaped bungalow with covered terrace (southwest side)
We want to build with a basement. This should have windows with natural daylight behind the garage on the east side. There will be 2–3 living rooms down there (playroom, hobby room, later for the kids or grandparents if necessary).
The roof will not be converted into a living space — 20-22° (degrees) pitch, hip roof, for aesthetic reasons.
We know that a basement is more expensive than a second floor, etc. The budget is roughly 650,000–700,000 (currency).
Utility room, laundry room, sauna, etc. will all be located in the basement since there is enough space. 🙂

Now to the floor plan:
We like an open design with a large entrance area.

What we like about this floor plan:
Children’s area separated from parents
Connection from the garage with access to the storage room and basement
Access from kitchen and living room to the terrace possible
Master bedroom with direct view of the garden on the southeast side (in summer the shutters are closed anyway)
Children’s rooms with windows facing west, slightly southwest.

Open questions…
Are the children’s rooms too narrow at almost 3m (about 10 ft)?
Is the living room too narrow at almost 4.5m (about 15 ft)?
The L-shape at the terrace is about 3m (10 ft) deep — here we could possibly adjust a bit to enlarge the children’s rooms.
My wife doesn’t like that the kitchen is visible directly from the entrance area.
(I prefer the kitchen visibility over the living room couch). What do you think is better or worse?

The kitchen window is on the south side, possibly too much sun… maybe we should add an awning if needed.
I can’t fit a second toilet elsewhere without making the children’s rooms even smaller… so it will remain a guest toilet for the parents.

Is a door between the entrance area and the living area for a windbreak useful, or unnecessary? (We have underfloor heating.)
(Maybe a hidden interior door, but I’m unsure what happens if it gets damaged.)

The floor area ratio will be tight… 15m x 15m = 225 sqm (about 11,200 sq ft) + garage + driveway… we might need to reduce the width a bit.
660 sqm x 0.4 = 264 sqm (about 2,840 sq ft).

I have seen many floor plans here… wishes and practicality have to match somewhere.
I’m really curious about the experts’ opinions…
Is it rubbish or usable?

Thanks