Har Adar is an Israeli settlement organized as a local council in the Seam Zone and the Maccabim sub-region of the West Bank. Founded in 1986, it had a population of 4,065 in 2022. It is located near Abu Ghosh and the Green Line on Road 425, approximately 15 kilometers west of Jerusalem. Har Adar is ranked high on the Israeli socio-economic scale, at 9/10. Har Adar was initially built adjacent to the Green Line but is now largely located within the West Bank.

Biddu is a Palestinian town in the Jerusalem Governorate, located 6 kilometers northwest of Jerusalem in the West Bank. According to the Palestinian Central Bureau of Statistics, the town had a population of 8,231 in 2017. Biddu is at an altitude of 806m to 834m. Giv'on HaHadashah lies 2 km east of Biddu.