In January 1841, Smith declared in a revelation that Latter Day Saint Robert D. Foster should fulfill the contract he had entered into to build a house for Smith to live in. The house was constructed by Foster, and the Joseph Smith family moved into the Mansion House of 31 August 1843. The house was a two-storey building built of white pine in the Greek Revival style. Prior to the completion of the Nauvoo Temple, Smith performed some temple ordinances in the Mansion House.