MUCH easier to save each house type as an object, and then place them, rotated, elevated or whatever you want in the site pln.
Only thing you have to remember is to do an additional Save As Object when you've edited a house. If you simply overwrite the old object with the same name, the site pln will update automatically when it reloads its libraries when opened.
Additional bonus is that you can use a customised layer combo when saving as object, where you've stripped out everything (like interiors) that isn't relevant for the site plan. Thus speed up renderings etc.
AC4.1-AC26SWE; MacOS13.5.1; MP5,1+MBP16,1