Under Saudi rule, it has been estimated that since 1985 about 95% of Mecca's historic buildings, most over a thousand years old, have been demolished.
Historic sites of religious importance which have been destroyed by the Saudis include five of the renowned "Seven Mosques" initially built by Muhammad's daughter and four of his "greatest Companions": Masjid Abu Bakr, Masjid Salman al-Farsi, Masjid Umar ibn al-Khattab, Masjid Sayyida Fatima bint Rasulullah and Masjid Ali ibn Abu Talib.
It has been reported that there are now fewer than 20 structures remaining in Mecca that date back to the time of Muhammad. Other buildings that have been destroyed include the house of Khadijah, the wife of Muhammad, demolished to make way for public lavatories; the house of Abu Bakr, Muhammad's companion, now the site of the local Hilton hotel; the house of Muhammad's grandson Ali-Oraid and the Mosque of abu-Qubais, now the location of the King's palace in Mecca; Muhammad's birthplace, demolished to make way for a library; and the Ottoman-era Ajyad Fortress, demolished for construction of the Abraj Al Bait Towers.
The reason for much of the destruction of historic buildings has been for the construction of hotels, apartments, parking lots, and other infrastructure facilities for Hajj pilgrims. However, many have been destroyed without any such reason. For example, when the house of Ali-Oraid was discovered, King Fahd himself ordered that it be bulldozed lest it should become a pilgrimage site.