In order to rejuvenate the Museum Complex and invigorate its neighbourhood, expansion with new annex buildings for exhibition and learning facilities and re-provisions of existing out-of-date facilities have been planned by Leisure and Cultural Services Department (“LCSD”) and Architectural Services Department (“ArchSD”).

Both LCSD and ArchSD now join hands to organise the “Design Competition 1+1” – Expansion of Hong Kong Science Museum and Hong Kong Museum of History, and invite Hong Kong's professional architects to contribute innovative and creative ideas on the design.