SS20 is border by Jalan Damansara to the north, the Sprint Expressway (E23) to the south, and the LDP to the west. Within SS20 is the neighbourhood of Damansara Kim and the Damansara Specialist Hospital. Sekolah Menengah Kebangsaan Damansara Utama is also located here.
SS21 is border by the LEP to the east, Persiaran Bandar Utama to the north, Jalan SS 21/13 to the west, and the Sprint Expressway to the south. It has a commercial precinct to the southeast called Uptown, with a number of banks, restaurants and commercial outlets.
At present there are no light rail transit trains serving this area of Petaling Jaya. However the upcoming Taman Tun Dr Ismail MRT Station is under construction (as of April 2015) along Jalan Damansara, and when operational will serve both TTDI and Damansara Utama.
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