The Electricity Substation No. 349 is a heritage-listed electrical substation at 2S Frances Street, Randwick, City of Randwick, New South Wales, Australia. It was designed by Walter Frederick White, City Architect's Department and Municipal Council of Sydney and built during 1930 by J Rutherford. It is also known as #349 Princes Street substation. The property is owned by Ausgrid, an agency of the Government of New South Wales. It was added to the New South Wales State Heritage Register on 2 May 2008.