Billings developer to break ground on 720 multi-family apartments on West End this fall MTN News / Mitch Lagge An road under construction that will eventually lead to apartments in an area near the 4100 block of Monad Road in Billings. and last updated 2021-07-27 23:03:23-04 BILLINGS â Construction crews will break ground in the fall on 720 multi-family apartment units on Billings West End, according to a Tuesday media release from Billings real estate developer Mike Stock. The new apartment units will go up on a plot on the 4100 block of Monad Road, west of the planned Rocky Vista University medical school, which is currently under construction.