The historic Synagogue was first listed as a Grade I historic building in July 1987. By December 1987, the listing was voluntarily removed as there was talk of demolishing the building.Rebuilding the past - The conservation of Ohel Leah In order to provide the building with immediate protection against demolition, the Antiquities Authority of the Hong Kong Government declared it a proposed monument. Ohel Leah Synagogue was consequently saved based on a preservation arrangement agreed between Government and the owner."Declaration of Ho Tung Gardens at 75 Peak Road as a Proposed Monument under the Antiquities and Monuments Ordinance". Legislative Council Brief, January 2011. It has been again a Grade I historic building since 1990.List of the Historic Buildings in Building Assessment (as of 23 November 2011) Report No. 60 of the Director of Audit, Chapter 1: "Conservation of monuments and historic buildings", 28 March 2013. Its renovation in 1998 obtained the Outstanding Project Award of the 2000 UNESCO Asia Pacific Heritage Awards for Culture Heritage Conservation.
