 A number of novel and useful practices were used in the residential development of Abbas Abad, which was among the recent districts to be designed anew from the start (some other district were built around and upon older and more established locals, but most of Abbas Abad was built on undeveloped farmland).For example, the apartments on the northern lots of each street were set back to allow for a front-yard, and those on the southern side were to be built adjacent to the street to allow for a backyard, so each building would get the maximum privacy and use of natural sunlight (without much obstructions) while providing the necessary space for the planting of a garden, greenery and/or trees for each house (an essential part of Iranian and Persian architecture).The original building code allowed for the construction of two-family houses (two-floor apartments), although later on (mid- to late 1970s) the code was modified to allow construction of apartment complexes of up to five floors on the larger lots, with strict limits for the location and number of such apartments for each street and avenue.