A powder room design is necessary for your house design. Even though you can have it integrated with the bathroom, but it would be better for you to spare a small space for a powder room. There are a lot of ideas that you can have for a powder room design. By having it, you can get a more useful and segmented room within a house.
This classic powder room seems to be a nice choice for a house design. The red wall paint on it looks so awesome and entertaining. There is also a wooden vanity with marble countertop that makes this space looks more endearing. The black wash bowl on it would be a great choice for this powder room.
The grey powder room in this space could also be a good model. The grey tile flooring in this space seems to be a really good choice that you need for a masculine space. Moreover, there is also a grey stone wall that makes this space even more masculine. The white washing sink and latrine would be a nice choice for this powder room as well.
Then, there is also beige powder room that looks so awesome. The beige marble wall in this space would be a good choice that you need for this space. It looks classy and awesome. It also has white tile flooring that looks great on it. The wooden vanity with round wash bowl on it would be a nice completion for this space.
A powder room seems to be a nice choice for a house design. Even though it wastes more space inside the house, but you can get a splendid design on it. You can get a really useful space that you can use for specific purpose. So, you can get a different role between bathroom and powder room.