[11][12] On Friday 23 May 1930 the Urban District's new Town Hall in Yiewsley was officially opened by Mr. F. E. Dominey, J.P., the Chairman of the Council.

The Town Hall in Yiewsley was sold to Middlesex County Council and today as Key House, provides office and training space for charity and non-profit organisations.

[14][15] The Yiewsley and West Drayton Urban District, with the whole County of Middlesex, formed part of the review area of the Royal Commission on Local Government in Greater London.

The coat of arms of Yiewsley and West Drayton, which included Heathrow Airport, was granted in 1953 shortly before the coronation of Queen Elizabeth II.

Crest: On a wreath of the colours between two eagle's wings or charged with a cross gules a Tudor rose proper.

[16]The coat of arms of the London Borough of Hillingdon replicated in its logo re-uses splayed eagle wings, the Tudor rose and the main feature of its crest above is a red demi-lion with silver/white wings whose undersides (one visible as the lion is side-on) have the red cross of St George.