St Andrew's Well, Belfast Road, Ballynahinch, Co Down is a listed building in the Lisburn and Castlereagh local planning authority area, Northern Ireland.

St Andrew's Well, Belfast Road, Ballynahinch, Co Down

WRENN ID
ragged-bonework-oak
Grade
Local Planning Authority
Lisburn and Castlereagh
Constituency
Lagan Valley MP: Sorcha Eastwood (APNI)
Country
Northern Ireland
Irish grid reference
J 358 595
Coordinates
54.46634, -5.90507
Source
NI Environment Agency listing

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

Description

St Andrew's Well, situated on the east side of the Belfast to Ballynahinch road, just north of St Andrew's Church, is a utilitarian reinforced concrete structure associated with Belfast’s initial water supply from the Mournes. Constructed by the Belfast City & District Water Commissioners in 1901, it provides access to a valve within the Mourne conduit, facilitating the drawing of water to a nearby covered well and allowing for water pressure equalization and aeration. The structure is square in plan with a flat roof and a metal entrance door at the north end of the east wall. It features openings with metal bars on both east walls, along with a small ventilator in each of the remaining walls. While similar structures exist along the pipeline, most function solely as air wells. The well is of industrial archaeological interest due to its connection to the early Belfast water system.

Local climate

St Andrew's Well, Belfast Road, Ballynahinch, Co Down sits in a wetter-than-average part of the UK, with an average of 980 mm of rain a year. This makes it wetter than 78% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 75% of listed buildings.

It experiences an average of 9 freeze-thaw cycles a year, fewer than 92% of listed buildings. Of these, 5 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
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  • 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. Saint Andrew's Parish Church of Ireland, Carricknaveagh Road, Carryduff Road, Killaney, Lisburn, County Down Grade B1 104 m
  2. Union Lodge, 8 Carricknaveagh Road, Boardmills, Lisburn, County Down, BT27 6UB Grade B+ 268 m
  3. Killaney Presbyterian Church, Church Road, Boardmills, Lisburn, County Down 511 m
  4. Killaney Lodge, 19 Carryduff Road, Lisburn, County Down, BT27 6TZ Grade B2 760 m
  5. Trinity Presbyterian Church, Church Road, Boardmills, Lisburn, County Down 957 m
  6. Carricknaveagh Primary School, 42 Carricknaveagh Road, Temple, Carryduff, County Down, BT27 6UB 1.1 km
  7. 125 Creevy Road, Carrickmaddyroe, Lisburn, County Down, BT27 6UW, **See General Comments** 1.6 km
  8. Second Boardmills Presbyterian Church, Creevy Road, Creevy, Lisburn, County Down, **See General Comments* 1.6 km
  9. 23 Knockany Road, Ballycarngannon, Lisburn, County Down, BT27 6YB 2.8 km
  10. Well Attendant's House, 17 Brae Road, Ballynahinch Grade B2 3.0 km