Rear Boundary Wall Including Gateway to No 1 (No 1 Not Included) is a Grade II listed building in the South Hams local planning authority area, England. First listed on 23 February 1994. Boundary wall.

Rear Boundary Wall Including Gateway to No 1 (No 1 Not Included)

WRENN ID
waiting-plinth-laurel
Grade
II
Local Planning Authority
South Hams
Constituency
South Devon MP: Caroline Voaden (LD)
Country
England
Date first listed
23 February 1994
Type
Boundary wall
Address
Rear Boundary Wall Including Gateway to No 1 (No 1 Not Included), Mount Boone, Dartmouth
OS grid reference
SX 875 515
Coordinates
50.3528, -3.5822
Source
Historic England listing

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

Description

The rear boundary wall, which includes a gateway to No. 1 Mount Boone (though No. 1 itself is not included in this listing), is a boundary wall of uncertain date. It was already in place by the mid-18th century, as shown in a topographical painting, and may have been used during the Civil War. The wall is constructed of stone rubble with granite coping, and one section features some 18th-century brick. It is a tall, crenellated wall, generally around 2 meters high but significantly taller in some areas, topped with ridged granite coping. Most of the front wall has been replaced, but a portion remains adjacent to No. 1 Mount Boone.

As the wall curves onto Mount Boone Hill, it features a large gateway with square piers made of red sandstone ashlar, which have chamfered corners, stepped caps, and large ball finials. The wall follows the irregular line of Mount Boone Hill and extends along the back of the gardens on Mount Boone Lane, where several gateways have been created. Some sections have been rebuilt, and some have lost their coping, but most of the wall remains intact. One section includes 18th-century brick within the embattled granite coping, and in certain areas, the granite coping is more elaborate, with mouldings that return up and down the merlons and embrasures. This wall was originally built as the boundary for Mount Boone, the 18th-century home of the Seale family, which has since been demolished, and the grounds have been developed into a row of Edwardian villas, numbered 1 to 16 Mount Boone.

Local climate

Rear Boundary Wall Including Gateway to No 1 (No 1 Not Included) receives an average of 900 mm of rain a year. This makes it wetter than 67% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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.

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