1 August

• 1820 – The eastern section of the Regent's Canal opens between Limehouse Basin and Hamsptead Road Locks at Camden.
• 1831 – Designed by John Rennie the Elder and built by John Rennie the Younger, "New" London Bridge over the River Thames opens.
• 1865 – London, Chatham and Dover Railway opens branch from Nunhead to Crystal Palace & Upper Norwood.

2 August

• 1880 – Metropolitan Railway extends from West Hampstead to Harrow-on-the-Hill.
• 1967 – Second bore of Blackwall Tunnel opens under the River Thames between Blackwall and the Greenwich Peninsula.

3 August

• 1920 – Central London Railway extends from Wood Lane to Ealing Broadway.
• 1926 – The first electric traffic light in Britain is installed at Piccadilly Circus. It was manually operated by a police officer.
• 1963 – Erection of the Umbrella road deck over Oxford Circus begins to allow the excavation for the new station concourse below the junction.

4 August

• 1902 – Greenwich foot tunnel opens under the River Thames between Greenwich and the Isle of Dogs.

5 August

• 1906 – Baker Street and Waterloo Railway extends from Lambeth North to Elephant & Castle.

6 August

• 1844 – Birth of James Henry Greathead, designer of the Greathead tunnelling shield and engineer of the City and South London Railway.

7 August

• 1838 – A guard is killed on a London and Birmingham Railway train near Harrow & Wealdstone after he slips when crossing between carriages and his legs are crushed under the wheels.

8 August

• 1874 – Birth of Albert Stanley, Chairman of the UERL and the London Passenger Transport Board.
• 1898 – Waterloo and City Railway opens between Waterloo and Bank.

9 August

• 1972 – Government announces its choice of the particular site at Maplin Sands, Essex for London's third airport.

10 August

• 1885 – Woodside and South Croydon Joint Railway opens between Woodside and Selsdon.

11 August

• 1797 – Birth of George Shillibeer, bus operator.
• 1854 – Metropolitan Railway granted powers to construct railway between Paddington and Farringdon.

12 August

• 1828 – The Kensington Canal opens between Kensington Basin, Warwick Road and the River Thames near Battersea Bridge.

13 August

• 1979 – British Airports Authority makes an agreement with West Sussex County Council that no second runway will be constructed at Gatwick Airport for forty years.

14 August

• There are no anniversaries today

15 August

• There are no anniversaries today

16 August

• 1976 – Northern City Line re-opens between Old Street and Drayton Park with British Rail services replacing those of the Northern line's Highbury Branch.

17 August

• There are no anniversaries today

18 August

• 1924 – Charing Cross, Euston and Hampstead Railway extends from Hendon Central to Edgware.
• 1976 – North Circular Road flyover at Staples Corner opens.

19 August

• There are no anniversaries today

20 August

• 1989 – A collision between pleasure boat Marchioness and dredger Bowbelle causes the former to sink near Cannon Street railway bridge with 51 passengers killed.
• 2016 – All-night Night Tube services begin on a number of London Underground lines.

21 August

• 1850 – A shunting accident at Bricklayers Arms station causes the collapse of the roof killing a porter.
• 1866 – Death of George Shillibeer, bus operator.
• 1961 – First section of Clearway introduced in London runs five miles along the A4 from Knightsbridge to Chiswick Flyover, stopping parking between 8 am and 9.30 am.

22 August

• 1848 – London and South Western Railway opens line from Richmond to Datchet.
• 1849 – London and South Western Railway opens line from Barnes to a temporary station near Isleworth.
• 1867 – Edgware, Highgate and London Railway opens between Finsbury Park and Edgware.

23 August

• 1873 – Albert Bridge over the River Thames opens.

24 August

• There are no anniversaries today

25 August

• 1862 – London, Chatham and Dover Railway opens its terminus at Victoria adjacent to the London and Brighton Railway's terminus. Its line runs to Herne Hill.
• 1919 – Operated by Aircraft Transport and Travel, the world's first daily international flight leaves Hounslow Heath Aerodrome for Le Bourget, Paris.

26 August

• 1916 – A passenger is killed at City Road station when the guard signalled for a train to depart before all of the passengers had alighted.

27 August

• There are no anniversaries today

28 August

• 1937 – Morden-Edgware line is renamed Northern line.
• 1937 – Central London line is renamed Central line.

29 August

• There are no anniversaries today

30 August

• There are no anniversaries today

31 August

• 1846 – The horse-drawn Surrey Iron Railway closes.
• 1908 – Death of Leslie Green, architect of UERL stations.
• 1987 – Docklands Light Railway opens between Island Gardens and Tower Gateway or Stratford.
• 2011 – Docklands Light Railway extends from Canning Town to Stratford International.

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