Clarendon Arch and Tunnel is a Grade II listed building in the Enfield local planning authority area, England. First listed on 31 January 1974. Arch and tunnel. 1 related planning application.
Clarendon Arch and Tunnel
- WRENN ID
- lesser-paling-fern
- Grade
- II
- Local Planning Authority
- Enfield
- Constituency
- Edmonton and Winchmore Hill MP: Kate Osamor (Lab)
- Country
- England
- Date first listed
- 31 January 1974
- Type
- Arch and tunnel
- Address
- Clarendon Arch and Tunnel, Bush Hill N21, N21 2BD
- OS grid reference
- TQ 324 950
- Coordinates
- 51.63877, -0.08777
- Source
- Historic England listing
Description
Clarendon Arch and Tunnel is a Grade II listed structure located in Bush Hill, N21. The arch features an inscription that reads, "This arch was rebuilt in the year 1682. Honerable Henry Earle of Clarendon Being Gov." The long tunnel, which is barrel vaulted and constructed mostly of pinky-yellow stock brick, likely dates from the early 19th century. At one end, the arch ring is made of Portland stone and includes the aforementioned inscription along with a fine shield of arms, complete with mantling, helm, and crest of Myddelton. The structure is capped with a plain parapet.
The tunnel carries the Salmons Brook beneath the New River. On the northwest side of the tunnel, there is a stone with an inscription stating: "This bank of earth was raised and formed to support the Channel of the New River. And the frame of timber and lead which served that purpose 173 years was removed and taken away. MDCCLXXXVI Peter Holford Esquire, Governor." This work is part of the New River project, which was established in 1613 by Sir Hugh Myddelton to provide a cleaner water supply to London.
Local climate
Clarendon Arch and Tunnel sits in one of the driest parts of the UK, with an average of 680 mm of rain a year. This makes it drier than 99% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 99% of listed buildings.
It experiences an average of 29 freeze-thaw cycles a year, fewer than 66% of listed buildings. Of these, 13 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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- No EPC on record for this property
- No sale records on file
- Related listed building consents — 1 application
- 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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