Map shows planning area boundary, plot ratio boundary, plot ratio, residential areas, housing estates, business parks, commercial areas, residential and commercial at first storey, educational institutions, utility areas, sports and recreation areas, special use area, places of worship, reserve sites, parks, mass rapid transit, Kovan Mass Rapid Transit Station, Airport Road, Defu Lane, Defu Avenue, Hougang Avenue 1, 2, 3, 4, 5 and 7, Lorong Ah Soo, Hougang Street 21, Tampines Road, Upper Serangoon Road, Simon Road, Florence Road, Lim Ah Pin Road, Lorong Low Koon, and surroundings