▁and ▁join ery ▁works . ▁ 1 9 1 8 City ▁Railway ▁Work sh ops . ▁ 1 9 2 1 - 1 9 2 4 Dep art ment ▁of ▁Re pat ri ation ▁V oc ational ▁Training ▁Trade ▁School . ▁ 1 9 2 5 - 1 9 3 1 mot or ▁gar ages . ▁ 1 9 5 1 - 1 9 7 2 Dep art ment ▁of ▁Road ▁Transport ▁and ▁Tr am ways ▁bus ▁dep ot . ▁ 1 9 7 2 - 1 9 9 4 Storage ▁Area ▁ 1 9 9 4 Arch ae ological ▁Ex c av ation ▁ 2 0 0 9 Y outh ▁Host el ▁building ▁construction ▁complete ▁ ▁Heritage ▁listing ▁ ▁As ▁at ▁ 1 5 ▁October ▁ 2 0 1 0 , ▁d ating ▁from ▁ 1 7 9 5 , ▁the ▁arch ae ological ▁site ▁has ▁out standing ▁cultural ▁significance ▁as ▁rare ▁surv iving ▁evidence ▁of ▁the ▁mostly ▁conv ict ▁and ▁ex - conv ict ▁community ▁established ▁on ▁The ▁Ro cks ▁at ▁the ▁time ▁of ▁Australia ' s ▁first ▁European ▁settlement . ▁The ▁site ▁contains ▁identified ▁re lic s ▁of ▁ 4 6 ▁historic ▁houses , ▁two ▁lan es , ▁and ▁other ▁features ▁on ▁two ▁early ▁Sydney ▁town ▁lots . ▁It ▁is ▁one ▁of ▁few ▁surv iving ▁places ▁in ▁The ▁Ro cks ▁where ▁a ▁substantial ▁physical ▁connection ▁exists ▁to ▁the ▁time ▁of ▁first ▁settlement , ▁including ▁the ▁h uts ▁and ▁scattered ▁houses ▁built ▁on ▁and ▁car ved ▁into ▁the ▁sand stone ▁out