[5] Habitation in the village spanned centuries and is attested in architectural remains and documents from the Crusader, Mamluk, Ottoman and Mandate Palestine periods.

Allar was depopulated during the 1948 Arab–Israeli War and the area was incorporated into the State of Israel, with the moshavs of Mata and Bar Giora established on its former lands.

[5] Toward the beginning of four centuries of rule over the area by the Ottoman Empire, in August 1553, two leaders of Allar were held accountable for the village failure to pay taxes and were arrested by the imperial authorities.

[7] The imperial tax register of 1596 lists Allar as part of the nahiya ("subdistrict") of Jerusalem with 37 households, an estimated 204 inhabitants, all Muslims.

The villagers paid a fixed 33,3% tax−rate on various agricultural products, such as wheat, barley, olive trees, molasses, goats, and beehives; a total of 11,400 akçe.

[8][9] The waqf custodian of the mosque in Allar (and that of Bayt Nuba) in 1810 was appointed by the Ottoman authorities, and hailed from the Jerusalem family of notables, the Dajanis.

Guérin describes A'llar es-Sifla ou et-Tahta as an oasis covered in grape vines, citrus, pomengranate and fig trees, irrigated by an ancient canal and a second inexhaustible water source.

[22] After the Arab-Israeli War of 1948, the ruin of Allar remained under Israeli control under the terms of the 1949 Armistice Agreement between Israel and Jordan.