ᐅ Floor plan of a single-family house with three children's bedrooms and a double garage

Hello everyone,

My wife and I want to build a single-family house in a new residential development. We have received the first draft from our designer and would like to gather suggestions and improvement ideas.

Our basic requirements:
- An extra room on the ground floor as an office / guest room
- Shower bathroom on the ground floor
- 3 children’s bedrooms on the upper floor
- Double garage

What we don’t like about the current design:
- Secondary entrance is outside the garage
- Living area is too small
- Entrance area is a bit tight, with a small coat closet
- Layout on the upper floor
-> Master bedroom is very large (we actually don’t need a walk-in closet)
-> 1 children’s room is large, the other 2 are quite small (ideally all around 15sqm (160 sq ft))

Maybe some of you have optimization suggestions. We have thought about converting the attic and creating a kind of studio for ourselves or preparing it for future expansion. We currently have 2 children (2 1/2 years and one on the way). Although 3 children are planned, you never know... So currently, we only need 3 rooms on the upper floor, which could all be made larger, and we might even have space for a storage room or a children’s bathroom. Of course, this would involve significantly higher costs. What do you think?

Thanks for your help and best regards
Kenche2024