San Juan City is located at the heart of the metropolis. Its convenient location has attracted quite a number of residents as it is only minutes away from Makati City, Ortigas Centre and parts of Quezon City. Its limited land area however, has made it overpopulated and congested. Within its narrow, winding streets you can find a handful of large, aging pre-war mansions—not that any are likely to ever be on the market.

San Juan is where the Greenhills Shopping Centre is located, along the busy Ortigas Avenue that stretches from New Manila to EDSA Highway and the Ortigas Centre. Greenhills also refers to the series of gated subdivisions just surrounding the commercial centre. The shopping complex is known for its large concentration of restaurants and for its bazaars where jewellery, trinkets, electronics, and designer goods (including knockoffs) are hawked at bargain prices.