Described by Historic England as the ‘most important site for the history of explosives in Europe’ the remarkable and beautiful landscape chronicles the development of explosives, propellants and finally rocket motors and fuels from the Civil War to the Cold War, including rare surviving WW1 factory buildings, and intriguing structures and earthworks.  
The Royal Gunpowder Mills is a Scheduled Monument with over 20 listed buildings.  It is also designated a Site of Special Scientific Interest for it wildlife.  Its alder woodland is undergoing conservation, and the site features a unique three level industrial canal system (now mostly dry). 


Only the southern part of the site is accessible to the general public, where school activities and events take place and there are exhibitions about the history of the site and its manufacture, an armoury, an exhibition of rocketry, and a café. A number of the site’s many volunteers are people who worked here during its final incarnation as a top-secret research establishment to 1991. The northern part of the site awaits restoration and can normally only be viewed from a popular landtrain tour.

2019 Dates 

March 16th 2019 

April 13th 2019

May 18th 2019

June 15th 2019

July 20th 2019

August 17th 2019

September 21st 2019

October 19th 2019

November 16th 2019 

Please Note 

Historic Houses web links are currently not working as should. To book a ticket for our walking tours click here then scroll down to London & East England , scroll down to find Royal Gunpowder Mills and select ticketing options from there - should you require any help with purchasing tickets contact us on 01992 707 375