▁of ▁the ▁sh oph ouses ▁were ▁generally ▁determined ▁by ▁the ▁distance ▁it ▁could ▁span ▁due ▁to ▁the ▁use ▁of ▁tim ber ▁be ams ▁between ▁brick ▁party ▁walls . ▁▁ ▁Un ad orn ed ▁sh oph ouses ▁went ▁from ▁simple ▁looking ▁to ▁elaborate ▁and ▁s oph istic ated ▁structures . ▁A ▁rapid ▁spread ▁of ▁classical ▁architecture ▁began ▁during ▁the ▁Indust rial ▁Revolution . ▁There ▁are ▁the ▁Early ▁Sh oph ouse ▁style , ▁First ▁trans itional ▁style , ▁late ▁sh oph ouse ▁style , ▁second ▁trans itional ▁style , ▁Art ▁Dec o ▁style ▁and ▁modern ▁sh oph ouse ▁style . ▁Un like ▁the ▁traditional ▁or ▁ 2 nd ▁trans itional ▁sh oph ouses ▁style ▁which ▁are ▁high ▁in ▁orn ament ation , ▁art ▁de co ▁evol ves ▁from ▁it ▁into ▁a ▁new ▁style ▁of ▁architecture . ▁The ▁primary ▁sty list ic ▁features ▁of ▁an ▁art ▁de co ▁sh oph ouse ▁is ▁the ▁vertical ▁emphas is ▁and ▁concrete ▁as ▁a ▁common ▁material ▁in ▁construction ▁to ▁achieve ▁smooth ▁surfaces . ▁▁ ▁The ▁sh oph ouse ▁internal ▁spatial ▁layout ▁is ▁consistent ▁despite ▁the ▁change ▁in ▁style ▁during ▁the ▁ 1 9 th ▁century . ▁ ▁Bal est ier ▁Market ▁ ▁Introduction ▁▁ ▁Bal est ier ▁Market , ▁also ▁commonly ▁known ▁as ▁Or ▁K io ▁(' Black ▁Bridge ' ▁in ▁H ok k ien ) ▁due ▁to ▁its ▁similarity ▁to ▁a ▁dark ▁tim ber ▁bridge ▁sp anning ▁across ▁Sun ge i ▁Wh am po a , ▁is ▁located ▁in ▁the ▁centre ▁of ▁Bal est ier ▁Road . ▁It ▁was