One City is an integrated mixed development sprawling over 77 acres of freehold land located in USJ 25, UEP Subang Jaya. The development includes shop-offices, office suites, retail lots, serviced apartments, corporate offices, shopping malls and hotels.

The gross development value (GDV) of the entire project of One City is estimated at RM5 billion. One City Phase 1 project consists of 63 units of shop-offices with total built-up size of 7,040 sf with land size of 22 ft x 80 ft. The units were sold between RM1,600,000 and RM3,200,000. One City Phase 2 comprises Sky Park, a 13-storey office block, with a total of 222 office suites with built-ups ranging from 975 to 2,005 sf. It is sold with price tags starting from RM276,000 up to RM760,800.

Among the distinctive features of One City Phase 2 are 19 see-through elevators, 80 ft x 460 ft column-free Sky Walk, 63 double volume retail lots, 12 boutique seminar-cum-cinema halls, 120,000 sf Grand Sky Park, Glass Sky Bridge, 33 Garden Terraces and Sky Park Star Club. Besides that, another development in Phase 2 is a 1.5-storey shop-office. It comprises a total of 63 units where each of it has built-up sizes ranging from 1,065 to 3,120 sf. It is sold from RM720,000.

Additionally, the Skypark at One City also includes a cinema and a hotel. The 4-star hotel is called eCity Hotel which consists of 243 rooms. Lastly for Phase 2, there is an upscale retail mall The Place and a serviced residence dubbed The Square Residence. The Place consists of retail lots, entertainment outlets as well as 12 hall seminar rooms and an open terrace for gatherings and parties.

The last phase of One City Phase 3 is called MCT Mall which comprises luxury serviced apartments, corporate offices, an auditorium, a large shopping mall and a hotel. Hotel Eleven is also part of Phase 3, whereby this unique hotel features innovative electronic system that allows guests to book and check-in into the room, order food via room service and almost any request via online or SMS.

One City is connected to a large network of highways. It is easily accessible via Damansara Puchong Highway (LDP), KESAS Highway, New Pantai Expressway (NPE), North - South Highway (ELITE), Federal Highway and North Klang Valley Expressway (NKVE). For public transportation, there is a bus and taxi station situated within the vicinity.