Overbrook developed in various stages between 1900 and 1960. The dominant housing type is the row house, present in a wide variety of styles. Built in the early 20th century when trolley lines were allowing middle-class Philadelphians to move out from more crowded row house communities, Overbrook was a community of choice when it was built. Outside of Overbrook Farms, most of the houses in the Overbrook area date from between 1915 and 1930, when the Great Depression halted new construction nationally and locally. In addition to rowhouses, one can find a sizeable number of twin (semi-detached) houses. These semi-detached homes have two or three floors and typically are over in size. Prime examples of typical Overbrook twin houses are along Wynnewood Road from Haverford Avenue to Malvern Avenue, North 64th Street between Lansdowne and Lebanon Avenues, or Nassau Road between North 61st and 63rd Streets. There are very few detached single-family homes in Overbrook. Single homes typically pre-date the construction of most of Overbrook’s housing or came into existence on select lots after the construction of most of the rowhouses and twin houses. For example, one will see a few single-family homes on Wynnewood Road near Columbia Avenue. A large stone home remains this intersection. This home once sat on acres of land that the owner(s) sold off to developers who then constructed twin houses and rowhouses. The vast majority of the single-family, detached homes in the Overbrook area are in the Overbrook Farms neighborhood.