Social Development Unit (SDU) was formed in 1984 to promote marriages among graduate singles, while Social Development Services (SDS) was set up in 1985 to promote marriages among non-graduate singles.
The two units were merged on 28 January 2009 to reap economies of scale, enlarge the outreach, and provide more opportunities for singles to meet.
The unit was renamed Social Development Network (SDN) on 16 October 2009; paid membership scheme was removed and basic benefits were extended to all resident singles. The new SDN now forges an extensive network of singles, resources and partners in the private, people and public sectors to create an overall environment conducive for singles to meet and form meaningful relationships.
The vision of SDN is to promote marriages and nurture a culture where singles view marriage as one of their top life goals.
For SDN to be a credible, leading agency and one-stop resource centre on relationship skills, social interaction opportunities and information.