The Sham Castle, Greenwood Park, Warrenpoint Road, Newry, Co Down, BT34 2PF is a Grade B2 listed building in the Newry, Mourne and Down local planning authority area, Northern Ireland. First listed on 11 November 1981.

The Sham Castle, Greenwood Park, Warrenpoint Road, Newry, Co Down, BT34 2PF

WRENN ID
roaming-latch-mallow
Grade
B2
Local Planning Authority
Newry, Mourne and Down
Constituency
South Down MP: Chris Hazzard (SF)
Country
Northern Ireland
Date first listed
11 November 1981
Address
The Sham Castle, Greenwood Park, Warrenpoint Road, Newry, Co Down, BT34 2PF, Greenan, BT34 2PF
Irish grid reference
J 101 233
Coordinates
54.14755, -6.31491
Source
NI Environment Agency listing

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

Description

The Sham Castle is a folly, likely constructed between 1800 and 1819, probably by the Thompson family who owned Greenwood Park in the early 1800s. It stood within the demesne of Greenwood Park, a short distance southeast of the main house, which was demolished before World War II. The structure is visible on the 1834 Ordnance Survey map. Described in a travelogue from 1846 as a “picturesque quadrangular tower, completely shrouded with ivy, and surmounted by battlements, on which a few guns are mounted,” the folly was noted for its ‘ancient’ appearance but was considered comparatively modern and lacking historical significance beyond its aesthetic beauty. The folly has since been converted into a house. Other surviving features of the former demesne include a gardener’s cottage (HB16/10/030), a gate lodge (HB16/10/025), and the main gate screen (HB16/10/024). The building is privately owned and is located in the townland of Greenan.

Local climate

The Sham Castle, Greenwood Park, Warrenpoint Road, Newry, Co Down, BT34 2PF receives an average of 940 mm of rain a year. This makes it wetter than 72% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 64% of listed buildings.

It experiences an average of 24 freeze-thaw cycles a year, fewer than 74% of listed buildings. Of these, 12 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.

More on this building

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  • Detailed attributes — period, style, materials, features
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  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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Nearby listed buildings

  1. Gates to Greenwood House, Warrenpoint Road, Newry, Co Down, BT34 Grade Record Only 138 m
  2. Gate lodge and outbuildings, Greenwood Park, 60 Warrenpoint Road, Newry, Co Down, BT34 2PN Grade Record Only 157 m
  3. Ashton, Fathom Line, Newry, Co Armagh 591 m
  4. Fathom House, 45 Fathom Line, Fathom Park, Newry, Co Armagh, BT35 8QN Grade B1 593 m
  5. 53 Fathom Line, Newry, Co Armagh, BT35 8QN 647 m
  6. Belvedere, Ashton House, Fathom Line, Newry, Co Armagh 722 m
  7. House, at 43 Greenan Road, Newry, Co Down, BT34 2PZ Grade Record Only 817 m
  8. Belvedere, Fathom Park, Fathom Line, Newry, Co Armagh Grade B2 821 m
  9. 46 Flagstaff Road, Newry, Co. Armagh, BT35 8QU 1.1 km
  10. Site at 93 Warrenpoint Road, Greenan, Newry, Co Down, BT34 2PS Grade Record Only 1.5 km