A community within a community, the Radburn is an unincorporated planned neighborhood (a region or area of land allowed by law not to become part of any municipality, city, town, borough or village) situated independently inside the Borough of Fair Lawn in New Jersey. In 1929, the Radburn was established in response to the needs of an advancing society. Automobile started to become essential in an American life and the idea that it would bring about danger to pedestrians led to creation of a safer community.

Radburn was designed to address such need and a ?superblock? (a large block of land surrounded by main roads) system was introduced and implemented making it an inspiration to planners and architects in the United States and abroad for almost 60 years. This system separated pedestrian and vehicular traffic. With this system, the houses are assembled around small cul-de-sac streets with access roads coming from the main roads. The remaining spaces were converted to parks as the backbone of the neighborhood. The houses were laid out so that the living and sleeping areas are facing the garden and park zones. Walkways were arranged so that those will divide the cul-de-sac streets from each other and from the central park. A pedestrian underpass and an overpass link the superblocks making it easier for the foot-traveler to start from any point and keep on to reach school, stores or church without having to traverse a street used by automobiles.

Due also to the superblock system, cost of developing the Radburn community was cheaper compared to construction of normal subdivisions. It only required narrower roads and streets as well as smaller utility lines, thus, saving a lot on the construction expenses. The savings then were used to beautify the internal parks and to pay for the cost of arranging and landscaping of the playgrounds and green links connecting the central block commons. The savings also covered the parks? security expenses, which led to lesser monthly dues paid by the residents.

To maintain and to implement the regulations set within the Radburn neighborhood, the Radburn Association was established. Their duties include the administering of Radburn's common properties and to collect quarterly association fees from the owners of properties to cover the Association's maintenance and operation of communal facilities. Pursuant to enabling laws passed in the 1920s, the association is also empowered to restrict development and decoration of Radburn properties in order to maintain a consistent "look" to the community. The Radburn sits on a 149-acre of property with interior parks, four tennis courts, three hardball fields, two softball fields, two swimming pools and an archery plaza.