a, Umklamo womkhiqizo uhlukile, umklamo wehlukene, ilogo yerabha engalingani ingalengiswa, ilogo yokuphrinta ingaklanywa, umbala ucacile, umklamo ucacile, isithombe singokoqobo
b, Ukufakelwa okungasheleli kuhle, futhi kukhululekile ngaphandle kokushiya izigxivizo zeminwe.
c, enempilo futhi enobungani bemvelo, ayinaphunga elibi, imelana nokuzamazama komhlaba, imelana nesikhunta, ivikela ilanga, imelana nokushelela, imelana nokuguga, imelana nokugqwala, ihlala isikhathi eside;
d, inhle futhi inhle, ithambile futhi ikhululekile, ingabekwa yodwa, i-soundproof ifakwe ngaphakathi futhi kulula ukuyigeza (ingawashwa ngamanzi ahlanzekile futhi ingasetshenziswa ngokuphindaphindiwe);
f, ubukhulu bomumo bungaba nobugovu, amandla okudabula aphakeme, ukucaba kuhle, ukumelana nezinga lokushisa kuphezulu;