pAssAgE onE A．EliminAting thE originAl vEgEtAtion From thE BuilDing sitE.
B．mArking thE housEs in An ArEA similAr to onE AnothEr.
C．DECiDing whErE A housE will BE Built.
D、surrounDing A BuilDing with wilD FlowErs AnD plAnts.