Colwyn Bay Borough Council was granted its Charter of Incorporation on 20 September 1934. The new borough was created out of Colwyn Bay (formerly Colwyn Bay and Colwyn) Urban District Council and the villages of Bryn-y-maen, Mochdre and Rhos-on-Sea, Denbighshire . The Council consisted of 28 Councillors from whom were elected the Mayor and seven Aldermen. The Borough was served by a number of officials including a Clerk, Treasurer, Medical Officer of Health, Sanitary and Public Health Inspectors, Rating Officer, Surveyor and Engineer. The Borough was abolished in 1974, becoming part of Colwyn Borough Council, Clwyd; it is now in Conwy County Borough.
Scope and content: Colwyn Bay Borough Council records including minutes, 1934-1974; declarations of acceptance of office, 1934-1973; papers relating to celebrations and council occasions, 1934-1969; photographs of mayors, 1934-1939; byelaws, 1935-1954; registers of electors, 1935-1937; notices of internment, 1934-1959; Treasurers' accounts, 1934-1974, ledgers, 1936-1967, and wage records, 1934-1959; rate books and valuation lists, 1934-1972; allotments registers, 1909-1958 (Colwyn Bay UDC, 1909-1934); annual reports of Medical Officer of Health and Sanitary/Public Health Inspectors, 1934-1972; registers of stock killed at abattoir, 1934-1959; Solicitors' registers of local land charges, 1936-1974; Water Departments' papers, 1918-1977; Surveyor and Engineer's maps and plans relating to water supply, 1907-1949; sale agreements, 1865-1946; newspapers, 1961-1964; and tributes to Borough residents killed in the Second World War, 1947.