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Latitude: 51.6904 / 51°41'25"N
Longitude: -0.0094 / 0°0'33"W
OS Eastings: 537687
OS Northings: 200948
OS Grid: TL376009
Mapcode National: GBR KM.29C
Mapcode Global: VHGQ2.SSC0
Plus Code: 9C3XMXRR+56
Entry Name: Ministry of Defence Buildings A201 and A202 at TL 3768800948
Listing Date: 26 November 1993
Grade: II*
Source: Historic England
Source ID: 1251016
English Heritage Legacy ID: 352176
ID on this website: 101251016
Location: Holdbrook, Epping Forest, Essex, EN9
County: Essex
District: Epping Forest
Civil Parish: Waltham Abbey
Built-Up Area: Waltham Abbey
Traditional County: Essex
Lieutenancy Area (Ceremonial County): Essex
Church of England Parish: Waltham Abbey
Church of England Diocese: Chelmsford
Tagged with: Architectural structure
This list entry was subject to a Minor Amendment on 15/02/2012
TL3700
3/10014
MOD Buildings A201 and A202
at TL 3768800948
(Formerly listed as Royal Gunpowder House)
GV
II*
Mixing House and Saltpetre Mill. 1787-1800; Mixing House extended to north by one bay before 1830; linked by later C19 bay to centre. Reddish/brown Flemish bond brick, hipped to right and with ventilators to two pyramidal roofs on left. One storey.Saltpetre Mill to left has gauged brick flat arches over two C20 windows and concrete lintel over late C18 heavy plank door on right. Mid C19 entrance bay to centre with red brick flat arch over half-glazed mid C20 door.Mixing House has timber lintel over early/mid C19 four-panelled door flanked by segmental arches over C20 two-light windows. Early C19 extension to right has similar window
and timber lintel over late C19 four-panel door with overlight set in beaded wood architrave. Stepped brick eaves. Interior of Mixing House includes 3-bay king-post roof with soffit bolts, raking struts and diagonal corner bracing to wall plates; other roofs not visible. Saltpetre and sulphur were mixed with charcoal, the 3 ingredients then being crushed in the incorporating mill. A set of drawings dated 1830 have recorded these buildings and the utensils used therein in great detail. An important and unique survival of a building associated with the late 18th century gunpowder industry. Groups with the contemporary Walton House, A200 (qv).
(RCHME report, 1993).
Listing NGR: TL3768800948
External links are from the relevant listing authority and, where applicable, Wikidata. Wikidata IDs may be related buildings as well as this specific building. If you want to add or update a link, you will need to do so by editing the Wikidata entry.
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