Building's rhymes with:
buildings, buildings, buildings, holding's, holdings, holdings', landholdings, moldings, mouldings, shareholdings, shipbuildings, stockholdings
Building's sounds like:
balding, baldini's, baldness, baldwin's, balloting, beholding, belding, belting, blading, blatnik, bleeding, bloatedness, bloating, blotnick, blotting, bolding, boldness, bolting, boultinghouse, building, buildings, bulletins