Intro 1732 1735 1766 1779 1908 1960 1991 Sources

10 Downing Street

The World's Most Famous Front Door

British politics has experienced many changes over the past 300 years, with 76 Prime Ministers overseeing the fortunes of the United Kingdom during this time. While many of these leaders would have had opposing views, one thing they nearly all have in common is having resided at 10 Downing Street.

Here we take an in-depth look into the fascinating history of Number 10’s iconic shiny black entrance, widely accepted as the most famous front door in the world.


The property was offered to Sir Robert Walpole by King George II.

Walpole refused the offer as a personal gift but accepted on the basis that it would from then onwards be the official residency of First Lord of the Treasury, the position which he held at the time.

Door as Gift Gift Tag
Did you

To this day 10 Downing Street is the official residence of the First Lord of the Treasury and not the Prime Minister, although since 1905 these have always been the same person.

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After three years of renovations, Walpole took up residency on 22 September 1735 to begin a tradition which has lasted 280 years.

Removal Scene Lorry


Chancellor of the Exchequer Charles Townshend orders extensive repairs to the property. The front door was redesigned by architect Kenton Couse in a six-panelled Georgian style and was made from black oak.

Installed in the 1770’s, the door featured a centre door knob, lion head door knocker and brass letter plate which bore the inscription ‘First Lord of the Treasury’.

Door Knocker Door Knob Empty Door Letterplate
Did you

Soldiers heading to off to the trenches during the First World War used to touch the lion head door knocker for good luck. Then it was made of cast iron, whereas today it is brass and painted black to replicate the original.

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Downing Street is renumbered and the property is given the number 10.

Previously the numbers 2, 3, 4 and 5 stood where the present day 10, 11 and 12 are, with popular belief that number 10 used to be number 5.


Herbert Asquith becomes Prime Minister and has the front door repainted dark green for a brief time.

Brunswick Green Door
Expert Right

Political historian Dr. Anthony Seldon writes in his book 10 Downing Street: An Illustrated History that the Prime Minister’s wife Margot Asquith complained that the building was ‘liver-coloured and squalid and lacked the landmark qualities of Marble Arch or the Albert Memorial.’

Why green? Historical Paint Consultant Patrick Baty advises that “Brunswick Green or Bronze Green were fairly standard on front doors during this time, with black on external surfaces comparatively rare until the 1930s and more generally in the 1960s.”

Expert Left


Major works take place to renovate No.10 & 11 Downing Street and rebuild No.12 as designed by architect Raymond Erith.

The works last three years costing £1,000,000 – one year and £500,000 over budget.

Piggy BankHammer

As part of these renovations the front door of No. 10 is repainted along with new white numerals.

The ‘0’ numeral is painted at a 37° degree angle sloping to the left.

Number 1 Number 0 Finger
Expert Right Second

A Wonky Zero? A commonly given reason for this angled numeral is that it is a nod to the original door which featured a poorly fixed ‘0’. However, Professor James Mosley from the Department of Typography & Graphic Communication at the University of Reading has a far more plausible theory in that the ‘0’ is in fact a capital ‘O’ as found in the Roman’s ‘Trajan’ alphabet that was used by the Ministry of Works at the time.

Did you

The door from this period is on display in the Churchill Museum in London.

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The black oak door is replaced by a blast-proof steel door following an IRA mortar attack on Downing Street.

There are two doors which are alternated approximately every two years to be repainted.

Number Ten Door Knocker

The door cannot be opened from the outside and the letter plate is purely decorative.

Instead, a security guard is situated inside the door at all times to view people approaching the door via a camera and grant access.

Postman Guard Scene
Did you

The rarely seen inside of the door is white and features a polished brass door handle on a backplate.

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