Most residences are single-family homes, although there are some areas with condominiums, duplexes, and apartments.[20] Single-family homes typically have one or two bathrooms and three or four bedrooms and are between 1,000 square feet (93 m2) and 1,600 square feet (150 m2) on lots typically measuring about 6,000 square feet (560 m2). The vast majority were built in the 1950s through 1970s. There are pockets of older homes, mostly near downtown, often in demand for their architectural styles.[citation needed] There are also pockets of newer, much larger homes about 3,500 square feet (330 m2), mostly built in the 1990s on subdivided lots previously occupied by homes dating from the first half of the 20th century. Most of Campbell’s apartments are located in northern Campbell on Hamilton and Campbell Avenues.