Dewhurst St Mary Jmi School is a Grade II* listed building in the Broxbourne local planning authority area, England. First listed on 11 June 1954. School. 4 related planning applications.
Dewhurst St Mary Jmi School
- WRENN ID
- rusted-cloister-hazel
- Grade
- II*
- Local Planning Authority
- Broxbourne
- Constituency
- Broxbourne MP: Lewis Cocking (Con)
- Country
- England
- Date first listed
- 11 June 1954
- Type
- School
- Address
- Dewhurst St Mary Jmi School, Churchgate, EN8 9ND
- OS grid reference
- TL 350 025
- Coordinates
- 51.70567, -0.04736
- Source
- Historic England listing
Description
This is a rare 17th-century red brick school building, originally constructed in 1640 for Richard Dewhurst. It is a single-story building with attics and a modern tile roof. The east elevation features six brick-coped gables above four-light brick-mullioned windows, with moulded, stepped buttresses separating the windows. The central two windows are taller than the others. A continuous plinth runs along the base, and a floor band incorporates a plaque reading 'RD 1640' to the third gable from the left. A one-bay yellow stock brick extension continues the floor band on the north side. The south end has a tall chimney stack consisting of six square, conjoined shafts. A square, projecting staircase tower is located on the south end of the west elevation; it is gabled on two sides with a chamfered arch-headed door on the south ground floor and a date plaque to the gable. A taller, gabled square projection is situated north of the staircase tower. The remainder of the west side includes an attached 19th-century gabled extension built in salmon pink brick, replicating the mullioned windows and moulded buttresses of the main building.
Local climate
Dewhurst St Mary Jmi School 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 14 transactions since 1997
- Related listed building consents — 4 applications
- Detailed attributes — period, style, materials, features
- Flood risk assessment
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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