▁the ▁city ▁centre . ▁The ▁situation ▁gradually ▁improved ▁in ▁the ▁ 1 9 8 0 s . ▁The ▁quality ▁of ▁the ▁blocks ▁of ▁fl ats ▁also ▁left ▁much ▁to ▁be ▁desired , ▁with ▁numerous ▁compla ints ▁about ▁flo oded ▁cell ars ▁and ▁fault y ▁he aters ▁( which ▁had ▁to ▁be ▁replaced ▁in ▁more ▁than ▁ 4 0 0 ▁buildings ) ▁prompt ing ▁the ▁local ▁authorities ▁to ▁undert ake ▁a ▁massive ▁program ▁of ▁rep airs . ▁Because ▁of ▁this ▁situation ▁the ▁word ▁‘ Ret kin ia ’ ▁acc ret ed ▁negative ▁associations ▁and ▁was ▁sometimes ▁used ▁in ▁the ▁ 1 9 8 0 s ▁as ▁a ▁generic ▁term ▁for ▁an ▁unw el coming ▁and ▁ugly ▁block ▁housing ▁estate . ▁High - press ure ▁gas ▁installation ▁in ▁Ret kin ia ▁proved ▁to ▁be ▁dangerous , ▁and ▁in ▁ 1 9 8 2 ▁there ▁was ▁a ▁gas ▁explos ion ▁that ▁led ▁to ▁two ▁death s . ▁In ▁ 1 9 8 3 ▁another ▁gas ▁explos ion ▁demol ished ▁one ▁of ▁the ▁buildings , ▁leading ▁to ▁ 8 ▁cas ual ties . ▁This ▁led ▁to ▁a ▁complete ▁rem od elling ▁of ▁the ▁gas ▁network ▁in ▁Ret kin ia . ▁ ▁Following ▁the ▁construction ▁of ▁the ▁housing ▁district , ▁the ▁church , ▁which ▁by ▁the ▁late ▁ 1 9 7 0 s ▁was ▁too ▁small ▁for ▁the ▁growing ▁con greg ation , ▁was ▁expanded . ▁Const ruction ▁work ▁began ▁in ▁ 1 9 7 8 ▁and ▁continued ▁well ▁into ▁the ▁ 1 9 8 0 s ,