Boundary Post, Belfast Road, Holywood, Co Down is a Grade B2 listed building in the Ards and North Down local planning authority area, Northern Ireland. First listed on 27 January 1975.

Boundary Post, Belfast Road, Holywood, Co Down

WRENN ID
third-column-cobweb
Grade
B2
Local Planning Authority
Ards and North Down
Constituency
North Down MP: Alex Easton (Ind)
Country
Northern Ireland
Date first listed
27 January 1975
Irish grid reference
J 394 786
Coordinates
54.63672, -5.84041
Source
NI Environment Agency listing

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

Description

This cast-iron boundary post dates to 1858. It is located on the west side of High Street, Holywood, and marks the historic urban district boundary. The post has a shaft with a raised rounded band at the base, raised lettering reading “Hollywood Commissioners 1858”, a corbelled octagonal capping, and a starburst cap. The pavement level has been raised, diminishing the shaft. The post was first documented on the 1900-02 edition of the Ordnance Survey map, captioned “B.P.” and shown near a milepost.

The post's style is similar to other boundary posts found around Belfast, many of which are dated 1918, though those dates may be later additions marking electoral wards and municipal divisions. Cast-iron mileposts were erected from the early 19th century by Irish Grand Juries and turnpike trusts, with cast-iron boundary markers being a later development. The post has lost several inches in height since 1973 due to road level increases. The post is of local historical interest, reflecting the development of Holywood in the mid-19th century and demonstrating the town's boundary marking practices of the time.

Local climate

Boundary Post, Belfast Road, Holywood, Co Down sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 89% of listed buildings.

It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 3 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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