Knocknowan, Old Glenarm Road, Drains, Carncastle, Larne, Co Antrim is a listed building in the Mid and East Antrim local planning authority area, Northern Ireland.

Knocknowan, Old Glenarm Road, Drains, Carncastle, Larne, Co Antrim

WRENN ID
muffled-floor-thyme
Grade
Local Planning Authority
Mid and East Antrim
Constituency
East Antrim MP: Sammy Wilson (DUP)
Country
Northern Ireland
Irish grid reference
D 384 052
Coordinates
54.87598, -5.84429
Source
NI Environment Agency listing

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

Description

Knocknowan is a two-storey, three-bay house built between 1860 and 1879. The house was significantly altered through modernisation and has lost much of its original character. Originally, it featured white-painted rendered walls, a slated roof, and vertically hung timber sash windows with full glazing bars. The original entrance was recessed within a semi-circular headed opening, featuring a panelled door topped by a fanlight with radial glazing bars. The house has now been updated with modern windows in larger openings, and a broad, projecting modern porch has been added over the entrance. The property is situated in a rural location within open farmland, set well back from the Old Glenarm Road, with plain, rebuilt outbuildings located behind the main house. A small property was shown on the first Ordnance Survey map, but the current house represents an enlargement of that earlier dwelling, which is visible on the 1903 Ordnance Survey map.

Local climate

Knocknowan, Old Glenarm Road, Drains, Carncastle, Larne, Co Antrim sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 88% 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 5 freeze-thaw cycles a year, fewer than 97% 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.

More on this building

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  • No EPC on record for this property
  • No sale records on file
  • No related consent applications matched
  • Detailed attributes — period, style, materials, features
  • No flood data for this area
  • Radon risk assessment
  • 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. Lodge at Hillmount, 357 Old Glenarm Road, Drains, Carncastle, Larne, Co Antrim, BT40 2LG Grade B2 470 m
  2. Hillmount, 357 Old Glenarm Road, Drains, Carncastle, Larne, Co Antrim, BT40 2LG Grade B2 523 m
  3. Threshing Mill at Port Pier Farm, 92 Coast Road, Drains Bay, Larne, Co Antrim 878 m
  4. Droagh Cottage, 175 Coast Road, Droagh, Larne, Co Antrim, BT40 2LF 1.2 km
  5. 179 Coast Road, Carnfunnock, Ballygalley, Larne, Co Antrim, BT40 2LF Grade B1 1.3 km
  6. Blackcave Tunnel, Coast Road, Blackcave North, Larne, Co Antrim Grade B2 1.4 km
  7. Craigy Hill Methodist Church, Brustin Brae Road, Larne, Co Antrim 1.4 km
  8. McKillops Bridge, Brustin Brae Road, Ballytober, Larne, Co Antrim 1.5 km
  9. Ice House at Carnfunnock Country Park, Ballygally, Larne, Co Antrim Grade B1 1.5 km
  10. 184 Coast Road, Carnfunnock, Ballygalley, Larne, Co Antrim, BT40 2QG Grade B2 1.6 km