The architecture of Singapore is varied, reflecting the ethnic build-up of the country. Singapore has several ethnic neighbourhoods, including Chinatown and Little India. These were formed under the Raffles Plan to segregate the immigrants.
Many places of worship were also constructed during the colonial era. Sri Mariamman Temple, the Masjid Jamae mosque and the Church of Gregory the Illuminator are among those that were built during the colonial period. Work is now underway to preserve these religious sites as National Monuments of Singapore.
Due to the lack of space and lack of preservation policies during the 1960s, 70s and 80s, few historical buildings remain in the Central Business District (CBD) – the Fullerton Hotel and the previously-moved Lau Pa Sat being some exceptions. However, just outside of Raffles Place, and throughout the rest of the downtown core, there is a large scattering of pre-WWII buildings – some going back nearly as far as Raffles, as with the Empress Place Building, built in 1827. Many classical buildings were destroyed during the post-war decades, up until the 1990s, when the government started strict programmes to conserve the buildings and areas of historic value.
Past the shopping malls are streets lined with shophouses. Many other such areas have been gazetted as historic districts. Information can be found at the URA Centre in Maxwell Road, where there are exhibits and several models of the island and its architecture.
Singapore has also become a centre for postmodern architecture. Historically, the demand for high-end buildings has been in and around the Central Business District (CBD). After decades of development, the CBD has become an area with many tall office buildings. These buildings comprise the skyline along the coast of Marina Bay and Raffles Place, a tourist attraction in Singapore. Plans for tall buildings must be reviewed by the Civil Aviation Authority of Singapore.
No building in Singapore may be taller than 280 metres. The three tallest buildings in Singapore, namely Republic Plaza, UOB Plaza One and OUB Centre, are all 280 metres in height.