Dove street- redesigning a flat, interior architeture and design

We would like to have a new layout and interior design for a flat in Budapest downtown. We would like to have new purpose for rooms, not moving walls within the flat,, so it is a complete renovation. The building itself is an 80 years old Bauhaus style building. We would like some interior elements, like couch, accessories selected by the designer, we can give the websites to choose from.