Q: Is building both a noun and a verb also an adverb: the structure itself and the act of making it? ¶
A: Yes.
Q: Are buildings most often called houses or homes? ¶
A: Yes.
Q: Is building the act of construction? ¶
A: Yes.
Q: Are buildings most usually a collective effort of different groups of professionals and trades? ¶
A: Yes.
Q: Are buildings defined to be substantial? ¶
A: Yes, and permanent structures so other dwelling forms such as houseboats, yurts, and motorhomes are dwellings but not buildings.
Q: Is building a matter of debate? ¶
A: Yes, but generally three storeys or less is considered low-rise.
Q: Is building 'a structure that has a roof and walls and stands more or less permanently in one place'? ¶
A: Yes, "there was a three-storey building on the corner"; "it was an imposing edifice". In the broadest interpretation a fence or wall is a building.