The Antiquities Advisory Board (AAB) announced in March 2009 the completion of the assessment of 1,444 Historic Buildings. Since then, the AAB has been working on confirming the grading of the historic buildings with reference to information from the Antiquities and Monuments Office (AMO) and opinions received from the public. The AAB will also consider the heritage value and grading of the new items proposed by the public for assessment.

Reference:
Antiquities and Monuments Office - Built Heritage in Hong Kong, HKSAR Government:
http://www.amo.gov.hk/en/built2.php