Apartamento nuevo para una familia con 3 hijos

We have a brand-new apartment of 156 m and we would like to make it a beautiful, stylish and elegant place to live. We are 40 years old couple and we have three kids – 11 years, 7 years and 4 years old. All kids are boys.
The apartment is absolutely new so we could implement any ideas. We like the light, and the big benefit is that the apartment has huge windows. So, we would like to keep the atmosphere of wide, vast, airy and light space.

Style
Speaking about the style we like the style that we would call modern elegance. So, it should be modern, light, elegant, delicate.
Colors
We like soft and warm colors: beige, milky, white, gold, taupe, cacao, coffee, coral, soft warm pink, olive, soft blue and maybe grey as well.
Please don’t use orange color in furniture.
We would not like to use black or other dark colors too much, like dark blue, dark green or purple. It doesn’t mean of course that we can not use black at all. Or course some things like oven or coffee machine can be black, no problem. But all the atmosphere should not be dark.
Necessary things that we want to implement in every room:
1. Hallway (entrance area)
2. Kitchen and living room (in one big space)
Kitchen island – We would like to have the kitchen island in the kitchen with the stove or a sink.
Library – We have quite many books so we want to build nice library, enough shelves for the books.
Cozy armchair and a small coffee table for father of three boys to relax in the evenings.
Locate one of two pianos (we have one modern white (digital) and another is classical old dark brown piano).
3. Master bedroom (room for us – parents)
We have the bed made of light grey soft textile, two night tables and white Ikea make-up table (we attach photos). Please use them.
4. Room of Damian (11 years old)
We have all the furniture for his room (we attach the old photo of his room). We want to use the same furniture in his room.
5. Room of Konstantin (7 years old)
Konstantin has white singel Ikea bed (90*200). Please use it in the design. Please locate the second piano here.
6. Room of Max (4 years old)
Max also has white single Ikea bed (90*200). Please use it in the design.
7. Bathroom for parents should have shower.
8. Bathroom for the boys should have a bathtub.
9. Small bathroom near the entrance door to wash the hands and toilet or space for storage of grocery. This is optional.
10. Small office. If you find an option to organize a little office room it would be great.
Here we want to put office table, computer/laptop, some diplomas on the wall, maybe shelves for some business books. Also if it is enough space you can put the second piano here (instead of placing it in Konstantin's room). The idea is that one piano in the living room is for the whole family to play and listen in the evenings. But the second one we want to put in some closed room for studies, for music lessons. If you find an option for little office please place it here. If no, than place it in Konstantin"s room).
11. Laundry room (for the washing machine and ironing). We plan this small room for the washing machine, drying clothes, ironing and accessories for cleaning (mops and so on). We would prefer that accessories for cleaning – mops, vacuum cleaner and other things should be kept in some closed wardrobe inside this room.


Plants and pictures
We like plants and we have some green plants (Zamioculcas and spathiphyllum) – so you can use plants in the design.
We would like to put some pictures/paintings of the towns and countries where we have lived. Maybe we can use some wall for them.
Budget
We want to have an elegant stylish apartment but please don’t make it too luxury, as we have budget limit.

We like modern elegant style and soft sophisticated colors.
We dont like dark colors or orange color in sofas.