You will be able to tell by the names of the chapters which ones belong together.
You don't have to read "To build a home" these are all alone standing one shots.
Furthermore, it is important to remember that these are one shots and that this is not a consistent storyline.
If you have trouble picturing the house you can look at this:
https://pin.it/2OHLWLV
I hope you will have fun reading this :)