Ministry of Defence Building L170a at Tl 3778 0109 is a Grade II listed building in the Epping Forest local planning authority area, England. First listed on 26 November 1993. Magazine building.

Ministry of Defence Building L170a at Tl 3778 0109

WRENN ID
weathered-baluster-kestrel
Grade
II
Local Planning Authority
Epping Forest
Constituency
Epping Forest MP: Dr Neil Hudson (Con)
Country
England
Date first listed
26 November 1993
Type
Magazine building
Address
Ministry of Defence Building L170a at Tl 3778 0109, Waltham Abbey
OS grid reference
TL 377 010
Coordinates
51.69167, -0.00803
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Ministry of Defence Building L170A, located at the Royal Gunpowder Factory, was constructed in 1857 as an expense magazine. It features English bond brick with coped gable ends and a slate roof over a brick vault. The building has a rectangular plan and is a single storey. There is a raised doorway on the north side that was previously accessed by a railway on a trestle. This building is the earliest expense magazine on the site, with other expense magazines being L141 and L154. It was built to temporarily store gunpowder before it was transported to the northern part of the site for pressing, moulding, and drying. It is associated with buildings L168 and L176.

Local climate

Ministry of Defence Building L170a at Tl 3778 0109 sits in one of the driest parts of the UK, with an average of 690 mm of rain a year. This makes it drier than 97% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 98% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 63% of listed buildings. Of these, 14 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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Nearby listed buildings

  1. Ministry of Defence Building L167 at Tl 3777 0112 Grade II 32 m
  2. Ministry of Defence Building L165 at Tl 3777 0108 Grade II 68 m
  3. Ministry of Defence Number L168 (Engine House and Mechanics' Shop) Grade II* 74 m
  4. Ministry of Defence Building Numbers L176 (Boiler House) and L177 Grade II* 79 m
  5. Ministry of Defence Building L157 (Group C Incorporating Mills) Grade I 88 m
  6. Ministry of Defence Building L154 (Expense Magazine) Grade II 131 m
  7. Ministry of Defence Building Number A200 (Walton House) Grade II 150 m
  8. Ministry of Defence Building L153 (Group D Incororating Mills) Grade II* 158 m
  9. Ministry of Defence Buildings A201 and A202 at Tl 3768800948 Grade II* 169 m
  10. The Lodge (Ministry of Defence Building Number A221) Grade II 173 m