Castle Name	Condition	Description	Early Founder(s) -- Time Period(s) Contructed	Parish/Townland	Ord	Residency	Links
Ardglass Castle (Horn Castle, Newark Castle)	Partial	Tower-House - The present castle was built c.1790 by Lord Charles Fiztgerald. In the rear of the castle, the builder incorporated 2 older buildings known as New Works or Newark & Horn Castle. The former is supposed to have been built in c.1400 by traders as a place for storage & sale of goods from the port. The building was of 2 storeys, each divided in to 18 comparments; the ground floor rooms had arched doorways & large square windows. Horn Castle is a narrow tower c.50ft high, 290.4m long x 8m wide & seems to have been an embattled warehouse with living accomodation at one end.	1790 -- Built by -- Lord Charles Fitzgerald	Ardglass, Ardglass	J56153710	Golf Club house	http://www.from-ireland.net/lewis/down/ardglass.htm http://cloghmore.bravepages.com/down/ardglass.html http://www.ardglass.net/golf.htm NISMR database
Ardkeen Castle (Ard-Coyne, Castle Hill)	None	Motte and Bailey with Tower-House		Ardkeen, Ardkeen	J59355710		http://www.from-ireland.net/lewis/down/ardkeen.htm http://cloghmore.bravepages.com/down/ardkeen.html NISMR database
Audley Castle (Audley’s Castle)	Full*	Tower-House and Bawn	????-- --Audley, Ward	Ballyculter, Castleward	J57815058	State Care	http://www.from-ireland.net/lewis/down/ballyculter.htm http://cloghmore.bravepages.com/down/audleys_castle.html http://radiocarbon.pa.qub.ac.uk/local/down/towerhouse.html NISMR database
Bagnal's castle (castle at Feedom, now Fathom)	None	Castle?	1480 -- Built by -- English c1578 -- Tower-house built by -- Sir Nicholas Bagnall	Newery, Newery	J08732615		http://www.from-ireland.net/lewis/arm/newry.htm http://www.downcountymuseum.com/publications/ds1999/pg43.asp NISMR database
Ballynarry Castle		A motte and bailey castle.			S 5644		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/b/ballynarry.htm
Ballyroney Castle		A 12th century motte and bailey castle.			J 2240		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/b/ballyroney.htm
Bangore Castle (Castle Park)							http://www.from-ireland.net/lewis/down/bangor.htm
Belvoir Park Castle		A Norman motte.					http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/b/belvoir.htm
Bright Castle (Castle Bright)	Ruin				J507383		http://www.from-ireland.net/lewis/down/bright.htm http://cloghmore.bravepages.com/down/bright.html
Carrowdore Castle (Carrodore Castle)	Ruin						http://www.from-ireland.net/lewis/down/bright.htm http://www.from-ireland.net/lewis/down/donaghdee.htm http://freepages.genealogy.rootsweb.com/~rosdavies/PLACENAMES/CaCh.htm
Castle Dorras (Castle Derras)	None	Tower-House - Castle Derras was on the site where the Down Recorder offices now stand in Downpatick, on English St., at the corner of Church Lane.	1848 -- Demolished by --	Down, Downpatrick	J48634469		NISMR database
Castle Espie	Ruins	Castle?		Tullynakill, Castle Espie	J48606727		NISMR database
Castle Island Castle	Ruins	Tower-House - the remnants of a small rectangular stone tower c.24ft (7.3m) across inside. The surviving walls stood to only a few feet and were 5'6" (1.7m) thick, constructed of fair sized, irregular blocks. There were traces of two slit splays in the W wall and another in the the N. Only the bases of the NE & SE walls are visible now		Saul, Castle Island	J51684857		NISMR database
Castle Roe (Ross Trevor Castle)	Ruin						http://www.from-ireland.net/lewis/down/kilbroney.htm
Castle Screen (Castle Skreen)		The site of an Irish ring-fort with a 12th century Anglo-Norman motte.			J 4740		http://www.from-ireland.net/lewis/down/bright.htm http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/c/cas_skreen.htm
Castle Ward (Old Castle Ward)	Full	Tower-House - This is a late C16th/early C17th tower-house built of split stone rubble with sandstone dressings. It is 8.5m x 7.7m externally & is 3 storeys & an attic in height. The entrance is at E, approached by modern steps & is protected by a machicolation at roof level. The door leads to a lobby with a murder hole in the roof. A mural stair leads on to the upper floors. The ground floor room is roofed with a barrel vault. A battlemented parapet on the roof has stepped merlons, a feature of Irish castle architecture.	Ward (1610), Lord Bangor (1760)?	Ballyculter, Castleward	J57404985		http://www.from-ireland.net/lewis/down/ballyculter.htm http://www.irelandseye.com/aarticles/travel/attractions/gardens/c_ward.shtm http://www.fjiordlands.org/strngfrd/cward.htm NISMR database
Castle Wellan (Castlewellan Castle)	Full*						http://www.halliden.co.uk/thegallery/travel/2002Belfast/index.php http://www.bermyadventures.com/photos/ireland/castle_wellan.html http://webpages.charter.net/bansley/
Castlebouy (Castleboy, St. Johnstown)							http://www.from-ireland.net/lewis/down/castlebuoy.htm http://www.from-ireland.net/lewis/down/standrews.htm http://freepages.genealogy.rootsweb.com/~rosdavies/PLACENAMES/CaCh.htm
Castle-Hill Castle (Anadorn Castle)	None						http://www.from-ireland.net/lewis/down/anadorn.htm http://dnausers.d-n-a.net/dnetcRrI/Thejourney2.htm
Castlewilliam (Castle William)	None	Castle?		Killyleagh	J51955151		NISMR database
Clogh Castle	Ruin&	Motte and Bailey and Tower-House - The motte is surrounded by a ditch, which also separates it from the bailey. It rises 26ft above the ditch & is c.80ft across at the summit. The bailey is cresentic & delimited by a scarp 3-4ft high. Exavations in 1951 revealed a mid-C13th stone hall on the motte, with a stone keep. The site was deserted in the early C14th, until the late C15th-early C16th when the keep was rebuilt as a tower house.		Loughlin Island, Clough	J40924029	State Care	http://cloghmore.bravepages.com/down/clogh.html NISMR database
Clough Castle	Ruin&	Tower-house - a motte with a bailey to S & a tower house on top. The motte is surrounded by a ditch, which also separates it from the bailey. It rises 26ft above the ditch & is c.80ft across at the summit. The bailey is cresentic & delimited by a scarp 3-4ft high. Exavations in 1951 revealed a mid-C13th stone hall on the motte, with a stone keep. The site was deserted in the early C14th, until the late C15th-early C16th when the keep was rebuilt as a tower house.	c17th -- Founded by -- de Mandeville, MacQuillan, Mac Donnell	Clogh or Clough Village	J40924029		County Down Web Site 'Clough Castle' -- http://www.pdevlinz.btinternet.co.uk/Clough.htm Stone in Place Names (Picture) -- http://www.ulsterplacenames.org/stone_in_place_names.htm NISMR database -- http://www.ehsni.gov.uk/built/mbr/monuments_database/mons.asp
Con O'Neill's Castle	None	Castle?	???? -- Owned by -- Sir Moses Hill 1616 -- Sold to -- Con O'Neill	Knockbreda, Castlereagh	J37557109		NISMR database
Cow'd Castle (Cowd Castle, Choud Castle)	Full	Tower-House - The tower is only 5.8m x 5.4m externally. It comprises 2 floors & an attic & a wall walk around the roof which is now inaccessible. The entrance is on the ground floor at W, where a mural stair rises to the 1st floor.		Ardglass, Ardglass	J56063705	State Care	http://www.from-ireland.net/lewis/down/ardglass.htm http://cloghmore.bravepages.com/down/ardglass.html NISMR database
Down Castle	None	Castle? -	1641-2 -- Built by -- Thomas, Lord Cromwell	Down, Downpatrick	J48824435		NISMR database
Downpatrick Castle	Ruins	Tower-House? -A 2-storey tower is shown on demesne maps of 1729. It seems that this castle or tower-house was incorporated in to farm buildings, now derelict. The farm complex incorporates several buildings in a rectangular shape. The walls are upstanding, though low & crumbled in parts. The buildings are ivy covered & no diagnostic tower-house features were noted.	Mac Donlevy, de Courcy (1177)	Down, Downpatrick	J47594456		http://www.from-ireland.net/lewis/down/downpatrick.htm NISMR database
Dromore Castle	Ruin	Tower-House	c1610 -- Built by -- william Worsely	Dromore Town	J20095323		http://freepages.genealogy.rootsweb.com/~rosdavies/PHOTOSwords/DromoreAll.htm NISMR database
Dromore Motte & Bailey	None						http://cloghmore.bravepages.com/down/dromore_motte.html
Drumbo Round Tower		Round Tower			J321650		http://cloghmore.bravepages.com/down/drumboRT.html
Drumena Cashel		A prehistoric stone ring-fort.			J312340		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/d/drumena.htm http://cloghmore.bravepages.com/down/drumena_cashel.html
Dundonald Castles		A 12th century motte castle with a nearby towerhouse of the 15th century.			J 4274		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/d/dundonald.htm
Dundrum Castle	Ruin&	Castle?	c1190 -- Built by -- John de Courcy? 1220 -- Captured by -- King John 1227 -- Granted to -- Hugh de Lacy 1333 -- Reported ruinous -- 1636 -- Granted to -- Sir Frances Blundell Magennis?	Kilmegan, Dundrum	J40483700	State Care	http://www.from-ireland.net/lewis/down/dundrum.htm http://www.pdevlinz.btinternet.co.uk/dundrumcastle.htm http://www.ehsni.gov.uk/places/monuments/dundrum.shtml http://cloghmore.bravepages.com/down/dundrum.html NISMR database
Green Castle (Greencastle)	Partial*	Castle? - It is approached across a rock-cut ditch, which excavations revealed to be 7m wide at top, 3m at base & 3.5m deep. The curtain wall had 4 corner towers, of which only the bases of 2 remain. The 4 storey keep, 18m x 8.5m internally, is C13th with later alterations.	c13th -- Built by -- de Lacy (c1230), de Burgh, Fitzgerald, Baganal -- 16th century ?	Kilkeel, Greencastle	J24731184	State Care	http://www.from-ireland.net/lewis/down/kilbroney.htm http://www.ehsni.gov.uk/places/monuments/green.shtml http://cloghmore.bravepages.com/down/greencastle.html NISMR database
Hill Castle (Hillsborough Castle)	Full	A 17th century fort.					http://www.visitlisburn.com/visitor_attractions/hillsborough_castle_/ http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/h/hillsborough.htm
Jerretzpass (newery, Jerrets pass,Tuscan's Pass)							http://www.from-ireland.net/descrs/arm/coarmaghdes.htm
Jordan's Castle	Full*&	Tower-House - This is a four-storey tower-house, built c.1450 with a stair case turret & latrine turret both projecting from the N side, with a machicolation between them. The tower is built of split-stone rubble with sandstone dressings.	c1450 -- Built by -- ???? -- Residence of -- Jordon Family 1598 -- Blockade commenced by -- O'Neills 1601 -- Blockade relived by -- Lord Deputy Mountjoy c1920 -- Castle Restored by -- F.J. Bigger	Ardglass, Ardglass	J56013713	State Care	http://www.from-ireland.net/lewis/down/ardglass.htm http://cloghmore.bravepages.com/down/ardglass.html NISMR database
Katesbridge		A Norman motte.					http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/k/katesbridge.htm
Kilclief Castle	Full*	Tower-House - It is 4 storeys high, a central rectangle with square turrets projecting to W at NE & SE angles. The NE turret contains a latrine with a pit at ground level; the SE one encloses a spiral stair rising to the roof, lit by narrow loops. The turrets are united by a semi-circular arch forming a machicolation at roof level. The ground floor has a barrel vault. On the 2nd floor, the fireplace has a C13th coffin lid as a lintel.	Bishop Cely -- 14th/15th century?	Kilclief, Kilclief	J59724575	State Care	http://www.from-ireland.net/lewis/down/kilclief.htm http://cloghmore.bravepages.com/down/kilclief.html http://www.ehsni.gov.uk/places/monuments/jordans.shtml NISMR database
Killyleagh Castle	Full*	Castle - A 13th century castle converted to a stronghouse in the 17th century and further modified in the 19th century.	1330s -- Residence of -- The Mandevilles c16th -- Residence of -- The O'Neills 1610 -- Bought by -- Sir James Hamilton 1648 -- Castle Damaged -- 1666 -- Restored and additions added -- 1850-62 -- Restored in rhineland style -- de Courcy, Mandeville, O'Neill, Hamilton (1604-1620)?	Killyleagh, KillyLeagh	J52355296		http://www.fjiordlands.org/strngfrd/killylea.htm http://www.killyleagh.com/ http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/k/killyleagh.htm NISMR database
King's Castle	Full*	Tower-House -		Ardglass, Ardglass	J55833728	Nursing Home	http://www.from-ireland.net/lewis/down/ardglass.htm http://freepages.genealogy.rootsweb.com/~rosdavies/PHOTOSwords/ArdglassAll.htm NISMR database
Kirkistown Castle	Full*	Tower-House and Bawn	1622 -- Built by -- Roland Savage	Ardkeen, Kirkstown	J64495801	State Care	http://www.from-ireland.net/lewis/down/standrews.htm http://cloghmore.bravepages.com/down/kirkistown.html NISMR database
Lismahon Castle		An early 13th century Anglo-Norman motte castle built on a native Irish structure.			J 4238		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/l/lismahon.htm
Loughbrickland (Aghaderg or Aghaderrick)	none						http://www.from-ireland.net/lewis/down/loughbrickland.htm http://www.from-ireland.net/lewis/down/aghaderg.htm
MacCortney's Castle	None	Castle?		Ballykinler, Ballykinlar Upper	J422373		NISMR database
Maghera Round Tower		Round Tower			J372342		http://cloghmore.bravepages.com/down/maghera_church.html
Margaret's Castle	Partial&	Tower-House - is enclosed on N & W by modern buildings. It is built of split stone rubble & is 22'6" x 21'6" internally. The NW turret contains a stair leading to roof level, while the NE turret contains a chamber. The building only survives to 2nd floor level, with the entrance on the ground floor. This leads to a small mural lobby with a murder hole above.	c15th -- Built by --	Ardglass, Ardglass	J56033703		http://www.from-ireland.net/lewis/down/ardglass.htm http://cloghmore.bravepages.com/down/ardglass.html NISMR database
Moira Castle	None	Castle?		Moira, Risk	J14906090		NISMR database
Mount Alexander Castle	None	Castle?		Comber, Mount Alexander	J45566974		NISMR database
Narrow Water castle (New, Poyntzpass Castle)	Full*	Tower-House and Bawn - It is a tower 11.2m x 10.1, standing 3 storeys & an attic high. The entrance is defended by a machicolation. The tower stands within a rectangular bawn, c.36m square with walls 0.6m thick & 2m high internally, but more on the outside where is rises from the shore. There is a modern gateway through the bawn at N.	Magennis, Hall (c1560)	Warrenpoint, Narrow Water	J12561939	Historical Monument	http://homepages.tesco.net/~hugh.daly/other.htm http://www.from-ireland.net/lewis/down/clonallon.htm http://cloghmore.bravepages.com/down/narrow_water.html NISMR database
Narrow Water Castle (Old, Poyntz Pass Castle, Fenwicks Pass)	None		originally built 13th century?				http://www.from-ireland.net/lewis/down/clonallon.htm http://www.from-ireland.net/lewis/arm/poyntz.htm http://www.poyntzpass.co.uk/history.htm
Nendrum Castle (Mahee Castle)	Ruin	Tower-House and Bawn? It is 40ft x 22ft externally. The walls are 5ft thick, except the SE end wall, which is 6ft thick. The entrance doorway, 3'8" wide is on the NW end, defended by a murder-hole inside. The ground floor was vaulted & the 1st floor is 29ft x 12ft. The castle was apparently originally 3 storeys high, but now stands only 25ft high. There are possible remains of a bawn.	1570 -- Built by -- Captain Brown	Tullynakill, Mahee Island	J52396394	State Care	http://cloghmore.bravepages.com/down/nendrum_castle.html http://www.ehsni.gov.uk/built/monuments/mahee.shtml NISMR database
Newcastle Castle	None	Castle	1588 -- Built by --	Maghera, Newcastle	J37633105		http://www.from-ireland.net/lewis/down/slanes.htm http://ni_towns.tripod.com/newcastle/newcastle_intro.html NISMR database
Newcastle Castle (Old)	None	Castle	1433 -- Built by --				http://www.from-ireland.net/lewis/down/slanes.htm http://ni_towns.tripod.com/newcastle/newcastle_intro.html NISMR database
Nuns' Island Castle?	None						http://www.from-ireland.net/lewis/down/clonallon.htm
Other Fortresses							http://www.from-ireland.net/lewis/down/drumballyroney.htm
Portaferry Castle (Portnaferry)	Partial	Tower-House - It was probably built in the early C16th & repaired in 1635, with new floors & roof, large windows & an adjoining house was built. The tower is 3 storeys high, with an attic; at the SE angle is a turret which rises an extra storey & containes the entrance & stair from ground floor to first. This entrance is protected by a machicolation.	c16th -- Built by -- ?? 1635 -- Repaired by -- ?? Savage (16th century)?	Ballyphilip, Portaferry	J59305085		http://ni_towns.tripod.com/portaferry/portaferry_castle.html http://cloghmore.bravepages.com/down/portaferry.html NISMR database
Quintin Castle ("Smith's Castel"?)		Tower-House and Bawn	???? -- Built by -- Sir Thomas Smith?	Ballyphilip, Ballymartyr	J63175050		NISMR database
Quoile Castle	Partial&	Tower-House - The tower-house dates to the late C16th & is built of split-stone rubble with sandstone dressings. It is rectangular in plan with 3 floors & probably an attic.	West family -- early 17th century tower-house?	Saul, Quiol	J49634701	State Care	http://cloghmore.bravepages.com/down/quoile.html http://www.fjiordlands.org/strngfrd/quoile.htm NISMR database
Rath Ballyfounder							http://www.from-ireland.net/lewis/down/btrustin.htm
Rathfriland Castle	Ruins	Tower-House - the ground floor survives in part; the S wall & most of the E & W walls, largely reduced to foundations, remain, indicating a tower 26'6" square externally...Close to the SE angle of the E wall is a chase, possibly the socket for a draw-bar of the gate of a now vanished bawn".	???? - Built by -- Magennis Family	Drumballyrony, Rathfriland	J20143375		NISMR database
Rath-Keltair (Rath-Celtair, Dunum, Near Downpatrick)							http://www.from-ireland.net/lewis/down/downpatrick.htm http://www.1911encyclopedia.org/D/DO/DOWNPATRICK.htm
Rathmullen Castle		A 13th century motte castle on the top of an Irish ring-fort.			J 4737		http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/r/rathmullen.htm
Ringdufferin Castle	None	Tower-House - On this stands a stone structure, traditionally supposed to have been built as a lookout tower in the late C18th. It is 2 storeys high, c.4m, & is 2.2m x 3m internally.		Killyleagh, Ringdufferin	J53675664		NISMR database
Ringhaddy Castle		Tower-House	Mandeville, Whyte, Hamilton -- 15th century castle?	Killinchy, Ringhaddy	J53845886	State Care	NISMR database
Scarva House (Scarvagh House)							http://www.ulsterscotsagency.com/LOW_JulyeditionScarva.asp
Seafin Castle		Castle and Rath - The bailey is an adapted oval rath, 32m across, 2.2m high & enclosed by a stone curtain wall, which survives up to 1.8m high externally. There are entrances at NE & E. The keep was at least 2 storeys high	c1252 -- Built by -- Maurice Fitzgerald (1252), O'Neill, Magennis?	Drumballyroney, Seafin	J22053880		NISMR database
Seaman castle	Ruin						http://www.from-ireland.net/lewis/down/drumballyroney.htm
Sketrick Castle (Skettrick)	Ruin	Tower and Bawn - Access to the island was through a narrow passage at the base of the tower, with a guard room on one side & the kitchen on the other. The tower-house is 4 stories high, with the upper stories divided into 2 chambers. The upper stories are mostly ruined, due to the collapse of the latrines. The passageway was blocked.	1470 -- Castle Captured -- ??? MacQuillan (15th? century)?	Ardkeen, Sketrick Island	J52456252	State Care	http://cloghmore.bravepages.com/down/sketrick.html http://freepages.genealogy.rootsweb.com/~rosdavies/PHOTOSwords/ArdkeenAll.htm NISMR database
Strangford Castle	Full*	Tower-House - The tower-house was possibly built in the later C15th & was much altered in the late C16th. The building is square in plan & comprises a basement & 2 floors with attics. It had a 1st floor entrance, which is unique for a tower-house in Co.Down. It is now entered at ground level. The building was considerably restored shortly after 1960 when it was taken into State Care.	16th century?	Ballyculter, Strangford	J58864979	State Care	http://www.from-ireland.net/lewis/down/ballyculter.htm http://cloghmore.bravepages.com/down/strangford.html NISMR database
Tara Fort		A Celtic defensive farmstead. (ring-fort?)					http://web.ukonline.co.uk/nigel.bacon/castles/data/ireland/t/tarafort.htm
the Tower (Near King's Castle)							http://www.from-ireland.net/lewis/down/ardglass.htm
Tower at Drumbo	Partial						http://cloghmore.bravepages.com/down/drumboRT.html
Trevor's Castle	None	Castle?	1611-12 -- Built by --	Kilbroney, Rosstrevor	J170180		NISMR database
Tyrone's Ditches	None						http://www.from-ireland.net/lewis/arm/poyntz.htm
Walshestown Castle		Tower-House and Bawn - Set in the abandoned walled garden of Myra Castle, the tower-house probably dates to the late C16th & is described in ASCD as oblong, 8.8m x 8m externally "...of 4 storeys with small turrets rising a stage higher at the N & S angles...the structure has been considerably altered in modern times...". Large windows, probably in place of original ones have been inserted in the NW & SE walls, the roof & internal floors are modern & the entrance has been rebuilt at ground level. The bawn was enclosed by a wall 1m thick & enclose an area 13.7m across.	16th century tower?	Saul, Walshestown	J54514982		NISMR database

75 -- Entries Listed