Seletar is an area located in the north-east of Singapore. Its name can also refer to the Seletar Planning Area (as defined by the Urban Redevelopment Authority), situated in the North-East Region of Singapore. The place name was derived from the Malay subgroup who were indigenous to the area, the Orang Seletar. It shares boundaries with the planning areas of Sengkang to the south, Punggol to the east, Yishun and Simpang to the west, as well as the Straits of Johor to the north. Formerly Royal Air Force Station Seletar Royal Air Force military airfield site, the area now houses a new S$60 million Seletar Aerospace Park that spans 140 hectares. The aerospace park houses industries specialising in aircraft maintenance and repair services. There are future plans to transform Seletar into one of the Singapore's regional centres, along with Jurong East, Tampines and Woodlands. Once the transformation is complete, Seletar will be known as the only regional centre without a single MRT line passing through it, unlike its other regional rivals who have multiple MRT lines. The recent introduction of newer residential property and retail malls, most notably Greenwich V and Seletar Mall, Parc Botannia at Fernvale, Luxus Hill, Belgravia Ace and Parc Greenwich has served well in rejuvenating the Seletar area, with further plans to increase BTO flats supply in the area serve to create additional housing options for people working in the Aerospace Park. Geography Geographical extent According to the book Down the Seletar River: Discovering a Hidden Treasure of Singapore, Seletar generally refers to a region defined by the Ponggol River to the east, the Seletar River to the west, Ang Mo Kio to the south and the Straits of Johore to the north. It includes the areas covering Yio Chu Kang, Jalan Kayu, Lower Seletar Reservoir and a part of Upper Thomson. Seletar Planning Area Seletar Planning Area, as defined by the Urban Redevelopment Authority, shares a land boundary with planning areas of Sengkang to the south, riverine boundaries with Punggol to the east and Yishun to the west. Its northern boundary is made up by the Straits of Johor. Seletar Planning Area is officially divided into 4 subzones – Seletar, Seletar Aerospace Park, Pulau Punggol Barat and Pulau Punggol Timor. History The area was home to the indigenous Malay population, especially the Orang Seletar (Malay for Seletar people) - a subgroup of Malay sea gypsies