Bromley Havering Hillingdon Enfield
32 Boroughs & City 28 Boroughs & City 26 Boroughs & City 30 Boroughs & City
Greenford Perivale Wembley Park Royal
Slough Wembley Catford Uxbridge
City Corporation City Council City of London Corporation of London
Enfield Redbridge Waltham Forest Merton
Greater London Council London Council Greater London Authority London Corporation