The workers lived, among other places, on the eastside of Kirkehaugen in "owned homes". The engineers lived in the "'engineer town' consisting of villas with spacious gardens having been situated facing the still idyllic Frierfjord, closest to the factories, when Hydro's plant on Herøya grew from 1928 on. Or they would occupy the row of Hydro's more elegant one-family houses for engineers at Bakkedammen and, in a few cases, the grand workers' villas in Adriansåsen, the hill atop Herøya. Or increasingly in Hefalia, which lay on the opposite side of the factories, between Herøya and Porsgrunn."