| New (London) borough | Old areas (municipal boroughs and urban districts) |
| a href="/encyclopedia/London-Borough-of-Barking-and-Dagenham" title="London Borough of Barking and Dagenham">Barking and Dagenham | Barking and Dagenham from Essex |
| a href="/encyclopedia/London-Borough-of-Barnet" title="London Borough of Barnet">Barnet | Barnet and East Barnet from Hertfordshire; Finchley, Hendon and Friern Barnet from Middlesex |
| a href="/encyclopedia/London-Borough-of-Bexley" title="London Borough of Bexley">Bexley | Bexley, Erith, Crayford and Sidcup from Chislehurst and Sidcup from Kent |
| a href="/encyclopedia/London-Borough-of-Brent" title="London Borough of Brent">Brent | Wembley and Willesden from Middlesex |
| a href="/encyclopedia/London-Borough-of-Bromley" title="London Borough of Bromley">Bromley | Bromley, Beckenham, Orpington, Penge and Chislehurst from Chislehurst and Sidcup from Kent |
| a href="/encyclopedia/London-Borough-of-Croydon" title="London Borough of Croydon">Croydon | Croydon and Coulsdon and Purley from Surrey |
| a href="/encyclopedia/London-Borough-of-Ealing" title="London Borough of Ealing">Ealing | Acton, Ealing and Southall from Middlesex |
| a href="/encyclopedia/London-Borough-of-Enfield" title="London Borough of Enfield">Enfield | Edmonton, Enfield, Southgate from Middlesex |
| a href="/encyclopedia/London-Borough-of-Haringey" title="London Borough of Haringey">Haringey | Hornsey, Tottenham and Wood Green from Middlesex |
| a href="/encyclopedia/London-Borough-of-Harrow" title="London Borough of Harrow">Harrow | Harrow from Middlesex |
| a href="/encyclopedia/London-Borough-of-Havering" title="London Borough of Havering">Havering | Romford and Hornchurch from Essex |
| a href="/encyclopedia/London-Borough-of-Hillingdon" title="London Borough of Hillingdon">Hillingdon | Hayes and Harlington, Ruislip-Northwood, Uxbridge and Yiewsley and West Drayton from Middlesex |
| a href="/encyclopedia/London-Borough-of-Hounslow" title="London Borough of Hounslow">Hounslow | Brentford and Chiswick, Feltham and Heston and Isleworth from Middlesex |
| a href="/encyclopedia/Royal-Borough-of-Kingston-upon-Thames" title="Royal Borough of Kingston upon Thames">Kingston upon Thames | Kingston upon Thames, Malden and Coombe and Surbiton from Surrey |
| a href="/encyclopedia/London-Borough-of-Merton" title="London Borough of Merton">Merton | Mitcham, Merton and Morden, Wimbledon from Surrey |
| a href="/encyclopedia/London-Borough-of-Newham" title="London Borough of Newham">Newham | East Ham, West Ham in Essex; North Woolwich from Woolwich |
| a href="/encyclopedia/London-Borough-of-Redbridge" title="London Borough of Redbridge">Redbridge | Ilford, Wanstead and Woodford from Essex (plus part of Dagenham and Chigwell) |
| a href="/encyclopedia/London-Borough-of-Richmond-upon-Thames" title="London Borough of Richmond upon Thames">Richmond upon Thames | Barnes and Richmond upon Thames from Surrey; Twickenham from Middlesex; |
| a href="/encyclopedia/London-Borough-of-Sutton" title="London Borough of Sutton">Sutton | Beddington, Carshalton and Sutton and Cheam from Surrey |
| a href="/encyclopedia/London-Borough-of-Waltham-Forest" title="London Borough of Waltham Forest">Waltham Forest | Chingford, Leyton and Walthamstow from Essex |