List of Grade A listed buildings in County Down
# List of Grade A listed buildings in County Down

This is a list of Grade A listed buildings in County Down, Northern Ireland.

In Northern Ireland, the term listed building refers to a building or other structure officially designated as being of "special architectural or historic interest". Grade A structures are those considered to be "buildings of greatest importance to Northern Ireland including both outstanding architectural set-pieces and the least altered examples of each representative style, period and type." Once listed, severe restrictions are imposed on the modifications allowed to a building's structure or its fittings. Listed building consent must be obtained from local authorities prior to any alteration to such a structure.

Listing began later in Northern Ireland than in the rest of the UK: the first provision for listing was contained in the Planning (Northern Ireland) Order 1972; and the current legislative basis for listing is the Planning (Northern Ireland) Order 1991. Under Article 42 of the Order, the relevant Department of the Northern Ireland Executive is required to compile lists of buildings of "special architectural or historic interest". Since 2016, the responsibility for the listing process rests with the Historic Environment Division of the Department for Communities (DfC).

Following the introduction of listing, an initial survey of Northern Ireland's building stock was begun in 1974. By the time of the completion of this First Survey in 1994, the listing process had developed considerably, and it was therefore decided to embark upon a Second Survey, which is still ongoing, to update and cross-check the original information. Information gathered during this survey, relating to both listed and unlisted buildings, is entered into the publicly accessible Northern Ireland Buildings Database. A range of listing criteria, which aim to define architectural and historic interest, are used to determine whether or not to list a building.

County Down covers 2,448 square kilometres (945 sq mi), and has a population of around 516,000. The County has 41 Grade A listed buildings.

## Listed buildings

| Building address | Grid Ref. Geo-coordinates | Type | Local authority | Second Survey | Original Survey | HB Number | Image |
| - | - | - | - | - | - | - | - |
| Portaferry Presbyterian Church, Meeting House Street, Portaferry | 54°22′51″N 5°32′45″W﻿ / ﻿54.3809°N 5.5459°W﻿ / 54.3809; -5.5459﻿ (Portaferry Presbyterian Church, Meeting House Street, Portaferry) | Church | Ards | A | B+ | HB24/01/046 | Upload another image See more images |
| Rosemount House, Rosemount, Greyabbey | 54°32′03″N 5°33′22″W﻿ / ﻿54.5341°N 5.5562°W﻿ / 54.5341; -5.5562﻿ (Rosemount House, Rosemount, Greyabbey) | Country House | Ards | A | A | HB24/04/017 A | Upload Photo |
| Ballywalter Park House and garden walling, Ballywalter | 54°32′35″N 5°29′32″W﻿ / ﻿54.543°N 5.4922°W﻿ / 54.543; -5.4922﻿ (Ballywalter Park House and garden walling, Ballywalter) | Country House | Ards | A | A | HB24/04/028 | Upload Photo |
| The Temple of the Winds, Mount Stewart, Newtownards | 54°32′47″N 5°35′33″W﻿ / ﻿54.5463°N 5.5926°W﻿ / 54.5463; -5.5926﻿ (The Temple of the Winds, Mount Stewart, Newtownards) | Estate Related Structures | Ards | A | A | HB24/04/051 | Upload Photo |
| Mount Stewart and garden walls, Newtownards | 54°33′05″N 5°36′09″W﻿ / ﻿54.5515°N 5.6025°W﻿ / 54.5515; -5.6025﻿ (Mount Stewart and garden walls, Newtownards) | Country House | Ards | A | A | HB24/04/052 A | Upload another image See more images |
| The Manor House, High Street, Donaghadee | 54°38′27″N 5°32′08″W﻿ / ﻿54.6409°N 5.5356°W﻿ / 54.6409; -5.5356﻿ (The Manor House, High Street, Donaghadee) | House | Ards | A | B | HB24/07/009 A | Upload Photo |
| St. Mark's (Church of Ireland) Parish Church, Church Street, Newtownards | 54°35′42″N 5°42′14″W﻿ / ﻿54.5949°N 5.7038°W﻿ / 54.5949; -5.7038﻿ (St. Mark's (Church of Ireland) Parish Church, Church Street, Newtownards) | Church | Ards | A | A | HB24/11/001 | Upload another image |
| Moyallen Friends Meeting House, 117 Stramore Road, Gilford | 54°23′27″N 6°23′08″W﻿ / ﻿54.390833°N 6.385556°W﻿ / 54.390833; -6.385556﻿ (Moyallen Friends Meeting House, 117 Stramore Road, Gilford) | Church | Banbridge | – | A | HB17/01/022 | Upload Photo |
| Cleland Mausoleum, Dundonald Parish Graveyard, Dundonald | 54°35′37″N 5°48′23″W﻿ / ﻿54.593717°N 5.806433°W﻿ / 54.593717; -5.806433﻿ (Cleland Mausoleum, Dundonald Parish Graveyard, Dundonald) | Memorial | Castlereagh | – | A | HB25/05/002 | Upload another image |
| Knockbreda Church (Church of Ireland), Church Road, Knockbreda | 54°33′42″N 5°54′44″W﻿ / ﻿54.561756°N 5.912167°W﻿ / 54.561756; -5.912167﻿ (Knockbreda Church (Church of Ireland), Church Road, Knockbreda) | Church | Castlereagh | – | A | HB25/16/005 A | Upload another image See more images |
| Waringstown House, Magherana, Waringstown | 54°25′49″N 6°17′56″W﻿ / ﻿54.430278°N 6.298889°W﻿ / 54.430278; -6.298889﻿ (Waringstown House, Magherana, Waringstown) | House | Craigavon | – | A | HB14/06/001 | Upload another image |
| Killyleagh Castle, Killyleagh | 54°24′09″N 5°39′15″W﻿ / ﻿54.4025°N 5.654167°W﻿ / 54.4025; -5.654167﻿ (Killyleagh Castle, Killyleagh) | Country House | Down | – | A | HB18/03/001 A | Upload another image See more images |
| The Bawn, Killyleagh Castle | 54°24′25″N 5°39′09″W﻿ / ﻿54.406944°N 5.6525°W﻿ / 54.406944; -5.6525﻿ (The Bawn, Killyleagh Castle) | Walling | Down | – | A | HB18/03/001 B | Upload Photo |
| Gatehouse screen at Killyleagh Castle | 54°24′25″N 5°39′09″W﻿ / ﻿54.406944°N 5.6525°W﻿ / 54.406944; -5.6525﻿ (Gatehouse screen at Killyleagh Castle) | Gates/ Screens/ Lodges | Down | – | A | HB18/03/002 | Upload Photo |
| North east gateway, Killyleagh Castle | 54°24′10″N 5°39′15″W﻿ / ﻿54.402778°N 5.654167°W﻿ / 54.402778; -5.654167﻿ (North east gateway, Killyleagh Castle) | Gates/ Screens/ Lodges | Down | – | A | HB18/03/003 | Upload another image |
| Rademon Unitarian Meeting House, Listooder Road, Crossgar, Downpatrick | 54°24′21″N 5°48′40″W﻿ / ﻿54.4058°N 5.8111°W﻿ / 54.4058; -5.8111﻿ (Rademon Unitarian Meeting House, Listooder Road, Crossgar, Downpatrick) | Church | Down | A | A | HB18/05/022 | Upload Photo |
| Castle Ward House, Castleward, Strangford, Downpatrick | 54°22′03″N 5°34′50″W﻿ / ﻿54.3675°N 5.580556°W﻿ / 54.3675; -5.580556﻿ (Castle Ward House, Castleward, Strangford, Downpatrick) | Country House | Down | – | A | HB18/08/065 | Upload another image See more images |
| Southwell Charity School and Almshouses, English Street, Downpatrick | 54°19′41″N 5°43′13″W﻿ / ﻿54.328056°N 5.720278°W﻿ / 54.328056; -5.720278﻿ (Southwell Charity School and Almshouses, English Street, Downpatrick) | School | Down | – | A | HB18/20/001 | Upload another image See more images |
| Downpatrick First (Non-Subscribing) Presbyterian Church, Stream Street, Downpatrick | 54°19′30″N 5°42′44″W﻿ / ﻿54.3251°N 5.7121°W﻿ / 54.3251; -5.7121﻿ (Downpatrick First (Non-Subscribing) Presbyterian Church, Stream Street, Downpatrick) | Church | Down | A | B+ | HB18/19/016 | Upload another image See more images |
| Holy Trinity Cathedral, English Street, Downpatrick | 54°19′37″N 5°43′21″W﻿ / ﻿54.327061°N 5.722547°W﻿ / 54.327061; -5.722547﻿ (Holy Trinity Cathedral, English Street, Downpatrick) | Church | Down | – | A | HB18/20/005 | Upload another image See more images |
| Cathedral of St. Patrick and St. Colman, Hill Street, Newry | 54°10′27″N 6°20′19″W﻿ / ﻿54.1742°N 6.3386°W﻿ / 54.1742; -6.3386﻿ (Cathedral of St. Patrick and St. Colman, Hill Street, Newry) | Church | Newry and Mourne | A | A | HB16/28/036 | Upload another image See more images |
| Parish Church of St. Mary (Church of Ireland), John Mitchel Place, Newry | 54°10′20″N 6°20′21″W﻿ / ﻿54.1723°N 6.3392°W﻿ / 54.1723; -6.3392﻿ (Parish Church of St. Mary (Church of Ireland), John Mitchel Place, Newry) | Church | Newry and Mourne | A | A | HB16/30/001 | Upload another image |
| Ross Monument, Warrenpoint Road, Rostrevor | 54°05′58″N 6°12′34″W﻿ / ﻿54.099444°N 6.209444°W﻿ / 54.099444; -6.209444﻿ (Ross Monument, Warrenpoint Road, Rostrevor) | Memorial | Newry and Mourne | – | A | HB16/06/056 | Upload another image |
| Narrow Water Castle, Newry Road, Warrenpoint | 54°19′30″N 5°42′44″W﻿ / ﻿54.3251°N 5.7121°W﻿ / 54.3251; -5.7121﻿ (Narrow Water Castle, Newry Road, Warrenpoint) | Hotel | Newry and Mourne | A | A | HB16/11/019 A | Upload another image See more images |
| Derrymore House, Bessbrook, Newry | 54°11′22″N 6°23′03″W﻿ / ﻿54.1894°N 6.3841°W﻿ / 54.1894; -6.3841﻿ (Derrymore House, Bessbrook, Newry) | Gallery/ Museum | Newry and Mourne | A | A | HB16/23/010 | Upload Photo |
| Rathmoyle, Craigdarragh Road, Helen's Bay, Bangor | | House | North Down | – | A | HB23/16/030 | Upload Photo |
| Bangor Old Custom House, Quay Street, Bangor | 54°39′53″N 5°40′03″W﻿ / ﻿54.664822°N 5.667389°W﻿ / 54.664822; -5.667389﻿ (Bangor Old Custom House, Quay Street, Bangor) | House | North Down | – | A | HB23/05/012 | Upload another image |
| Helen's Tower, Conlig | 54°37′22″N 5°41′40″W﻿ / ﻿54.622764°N 5.694469°W﻿ / 54.622764; -5.694469﻿ (Helen's Tower, Conlig) | Tower | North Down | – | A | HB23/06/009 | Upload another image |
| Town Hall, Bangor Castle, Bangor | 54°39′23″N 5°40′10″W﻿ / ﻿54.656411°N 5.669331°W﻿ / 54.656411; -5.669331﻿ (Town Hall, Bangor Castle, Bangor) | Town Hall | North Down | – | A | HB23/07/001 A | Upload another image |
| Local Heritage and Visitor's Centre, Bangor Castle, Bangor | 54°39′23″N 5°40′10″W﻿ / ﻿54.656411°N 5.669331°W﻿ / 54.656411; -5.669331﻿ (Local Heritage and Visitor's Centre, Bangor Castle, Bangor) | Gallery/ Museum | North Down | – | A | HB23/07/001 B | Upload Photo |
| Bangor Abbey Parish Church, Bangor | 54°39′20″N 5°40′30″W﻿ / ﻿54.655692°N 5.674911°W﻿ / 54.655692; -5.674911﻿ (Bangor Abbey Parish Church, Bangor) | Church | North Down | – | A | HB23/07/004 | Upload another image See more images |
| 3 Station Square, Helen's Bay | 54°40′00″N 5°44′27″W﻿ / ﻿54.666686°N 5.74075°W﻿ / 54.666686; -5.74075﻿ (3 Station Square, Helen's Bay) | House | North Down | – | A | HB23/15/033 | Upload Photo |
| Station Building, Helen's Bay Station, Helen's Bay | 54°40′00″N 5°44′28″W﻿ / ﻿54.666636°N 5.741028°W﻿ / 54.666636; -5.741028﻿ (Station Building, Helen's Bay Station, Helen's Bay) | Railway Station Structures | North Down | – | A | HB23/15/034 | Upload another image See more images |
| Station Platforms, Helen's Bay Station | 54°39′59″N 5°44′27″W﻿ / ﻿54.666444°N 5.740933°W﻿ / 54.666444; -5.740933﻿ (Station Platforms, Helen's Bay Station) | Railway Station Structures | North Down | – | A | HB23/15/035 | Upload another image |
| Railway Bridge, Helen's Bay Station | 54°40′00″N 5°44′29″W﻿ / ﻿54.666661°N 5.741442°W﻿ / 54.666661; -5.741442﻿ (Railway Bridge, Helen's Bay Station) | Bridge | North Down | – | A | HB23/15/036 | Upload Photo |
| Coach Yard, Helen's Bay Station | 54°40′00″N 5°44′28″W﻿ / ﻿54.666636°N 5.741028°W﻿ / 54.666636; -5.741028﻿ (Coach Yard, Helen's Bay Station) | Outbuildings | North Down | – | A | HB23/15/037 | Upload Photo |
| Parish Church of St. Malachi, Main Street, Hillsborough | 54°27′42″N 6°04′51″W﻿ / ﻿54.461556°N 6.080808°W﻿ / 54.461556; -6.080808﻿ (Parish Church of St. Malachi, Main Street, Hillsborough) | Church | Lisburn | – | A | HB19/05/001 | Upload another image See more images |
| Gate screen and lodges (aka Sexton's House) at Parish Church Of St. Malachi, Hillsborough | 54°27′45″N 6°04′59″W﻿ / ﻿54.462586°N 6.083025°W﻿ / 54.462586; -6.083025﻿ (Gate screen and lodges (aka Sexton's House) at Parish Church Of St. Malachi, Hillsborough) | Gates/ Screens/ Lodges | Lisburn | – | A | HB19/05/002 | Upload another image See more images |
| Marquis of Downshire Monument, Monument Road, Hillsborough | 54°27′25″N 6°05′31″W﻿ / ﻿54.456953°N 6.092033°W﻿ / 54.456953; -6.092033﻿ (Marquis of Downshire Monument, Monument Road, Hillsborough) | Memorial | Lisburn | – | A | | Upload another image |
| Larchfield House, Upper Ballynahinch Road, Lisburn | 54°27′30″N 5°58′47″W﻿ / ﻿54.458314°N 5.979769°W﻿ / 54.458314; -5.979769﻿ (Larchfield House, Upper Ballynahinch Road, Lisburn) | House | Lisburn | – | A | HB19/06/003 | Upload another image |
| St. John's Parish Church, Moira | 54°28′50″N 6°13′13″W﻿ / ﻿54.480644°N 6.220333°W﻿ / 54.480644; -6.220333﻿ (St. John's Parish Church, Moira) | Church | Lisburn | – | A | HB19/22/001 | Upload another image |
