House Counter
Counter For Houses, Counter For Buildings
counter, suffix
The kanji and the word are exactly the same. That means they share meanings as well.
This is generally used to count single-family detached houses, but it can also be used to count individual units within a residential complex, as well as shops or restaurants.
This has the same reading as the kanji you learned, meaning you know the reading!
この人は、マンションを五軒持っています。
This guy has five apartments.