The mansion is named after Horace Charles Mules, the first chairman of the Karachi Port Trust.

[4][5][6] The building was designed by Jewish architect, Moses Somake, and was named after Horace Charles Mules, the first chairman of the Karachi Port Trust.

[5] The sailor's hostel and bar were converted into residential flats, providing a home for many migrating families, including that of Pirzada Qasim, a poet and academic.

[4] The buildings face different directions and surround an accessible field, which can be entered from the north side.

[4] The Victorian iron staircases, red clay-tiled roof, and some balconies have suffered damage, and the exterior has been affected by environmental factors and pollution.