This HDB apartment is an excellent example of how subtle mix and match can be. What is interesting about the interior is that the designer opts for more modern flooring materials in the dining room, such as tiles, but still sticks to parquet in.
add wood wallpaper to the kick plates of the stairs. Those rolls are expensive but you would only need one. Not practical with white treads though, it will be stuffed up from black shoe soles in no time.