appearance balconies balcony brick brick and wood exterior home house multi-storey multi-story security three-storey three-story view views wealth architecture building business complex coporate corporate success height high highrise modern Singapore skyscraper tall tower towering accommodation angles apartments box-like boxed concrete distinctive elements external glass gray grey light linear lines modernistic perspectives plain second-storey second-story squared straight structure structured style suburban units urban wall walls windows architectural cathedral christian compared comparison historic historic and modern old and new religious worship apartment blocks Asia buildings condominiums condos costly expensive flats high-rise living areas valuable wealthy