363 NMS sites 270 within protection zone 143 listed buildings 9 of 9 archaeological periods

Newcastle is a barony of County Wicklow, in the historical province of Leinster (Irish: An Caisleán Nua), covering 212 km² of land. The barony records 363 NMS archaeological sites and 143 NIAH listed buildings, placing it at around the 43rd percentile among 280 ROI baronies for sites per km². This means it is in the lower half of all baronies for sites per km². Dated archaeological evidence runs from the Mesolithic through to the Modern, spanning 9 of 9 archaeological periods, placing the barony in the 92nd percentile among 280 ROI baronies for chronological depth. This means it is in the top tenth of all baronies for chronological depth. The largest dated subset of recorded sites dates to the Medieval. Logainm flags 41 placenames in the barony as carrying a recognised heritage root; the largest share — around 76% — are names associated with early Christian church and monastic foundations.

Detailed boundary map of NEWCASTLE barony, WICKLOW
Newcastle boundary detail
Regional context map showing NEWCASTLE barony within WICKLOW
Newcastle in regional context

Heritage at a glance

Percentile rankings throughout this profile compare each barony only against the other 279 Republic of Ireland baronies.

363
Recorded NMS sites
43rd percentile
270
Within protection zone
74.4% of recorded sites
143
NIAH listed buildings
65th percentile
212 km²
Barony area

The recorded heritage of Newcastle

The National Monuments Service Sites and Monuments Record (SMR) is the statutory inventory of archaeological sites for the Republic of Ireland, maintained by the Department of Tourism, Culture, Arts, Gaeltacht, Sport and Media. Sites recorded here include earthworks, ringforts, megalithic tombs, ecclesiastical remains, and post-medieval features; not every record is legally protected, but each is registered as a monument of archaeological interest.

The National Monuments Service records 363 archaeological sites in Newcastle, putting it at the 43rd percentile among 280 ROI baronies for sites per km². This means it is in the lower half of all baronies for sites per km². Of these, 270 (74%) fall within a recorded monument protection zone. The record is dominated by defensive sites — ringforts, enclosures, hillforts, and stone forts (91 sites, 25% of the total), with agricultural and prehistoric industrial sites forming a substantial secondary presence (61 sites, 17%). The most diagnostically specific type is Fulacht fia (43 records, 12% of the barony's NMS total) — compared to an ROI average of 6% across all baronies where this type occurs. Fulacht fia is a horseshoe-shaped Bronze Age burnt mound built around a sunken trough beside a water source, traditionally interpreted as a cooking site. The broader 'Enclosure' classification — which catches unclassified ringforts and field enclosures — accounts for a further 62 records (17%) and reflects the difficulty of sub-classifying degraded earthworks from surface evidence alone. Across the barony's 212 km², this gives a recorded density of 1.71 sites per km².

Most common monument types

Hover or tap a monument type to see its definition.

TypeCount
Enclosure a banked or ditched feature of uncertain type, used as a catch-all where the original function cannot be determined from surface evidence 62
Fulacht fia a horseshoe-shaped Bronze Age burnt mound built around a sunken trough beside a water source, traditionally interpreted as a cooking site 43
Excavation – miscellaneous 28
Church a building used for public Christian worship, of any date from c. 500 AD onwards 21
Graveyard a burial area associated with a church, in use from the medieval period onwards 17
Ringfort – rath an earthen ringfort enclosed by a bank and external ditch — the most common Early Medieval farmstead, broadly dated 500–1000 AD 13
Ring-ditch a circular ditch under 20m across, often the ploughed-out remains of a barrow, ring-barrow or roundhouse 11

Chronological distribution

The dated archaeological record for Newcastle spans from the Mesolithic through to the Modern, with activity attested across 9 of 9 archaeological periods. This places Newcastle in the top 8% of ROI baronies for chronological depth — few baronies record evidence across as many distinct archaeological periods. Every period from earliest to latest is represented in the record — an unbroken sequence of dated activity across the full chronological span. Activity concentrates most heavily in the Medieval (40 sites, 26% of dated material), with the Iron Age forming a secondary peak (37 sites, 24%). A further 53 recorded sites (25% of the overall NMS register for the barony) carry no period attribution — appearing as 'Unknown' in the bar chart below. This typically reflects either records that pre-date the standardised period vocabulary or sites awaiting specialist dating review, rather than a genuine absence of chronological evidence.

Mesolithic
1
Neolithic
6
Early Bronze Age
25
Middle Late Bronze Age
12
Iron Age
37
Early Medieval
32
Medieval
40
Post Medieval
2
Modern
1
Unknown
53

Sample of recorded monuments

Show 25 sample monuments (of 363 total)

A representative sample of 25 recorded monuments drawn from the barony’s 363 total NMS entries. Sites within a recorded monument protection zone and rarer site types are prioritised so the list shows a meaningful cross-section rather than only the most common type. Each entry shows the official Sites and Monuments Record reference number and the description published by the National Monuments Service.

Hillfort

SMR WI013-001—-Downshilliron_ageProtected

Subcircular univallate hillfort (dims. c. 360m E-W; c. 220m N-S) part of which is depicted on the OS 6-inch map as a field boundary. The site encloses the summit of Downshill with steep slopes to the N, E and S and…

Decorated stone

SMR WI013-011001-Ballynerrin (Newcastle By., Kilcoole Ed)Protected

Reynolds and Haworth (1973, 50) noted a possible decorated stone at the church in Ballynerrin(WI013-011—-) which has not been located.

Compiled by: Claire Breen

Date of upload: 07 February 2013

Burial mound

SMR WI019-003—-Newcastle UpperProtected

Situated on a low rise overlooking a marked SE-facing slope. Circular mound (diam. c. 54m; H 1.8m) which when excavated in 1872, produced a rectangular cist (L 1.07m; Wth 0.61m) containing a cremation and a small bronze…

Castle – Anglo-Norman masonry castle

SMR WI019-005002-Newcastle MiddleProtected

Situated at the W end of a possible ringwork (WI019-005004-) in undulating terrain; the site formed part of the medieval borough of Newcastle (WI019-005—-). The remains of a four-storey rectangular gatehouse built of…

Designed landscape feature

SMR WI019-019—-Ballycurry DemesneProtected

Small circular copse of mature trees (diam. 30m). No encircling features other than a slight scarp on downslope side. On gentle SW facing slope. Probably a tree ring.

Date of upload: 28 September 2012

Water mill – horizontal-wheeled

SMR WI019-037—-Newcastle UpperProtected

Situated at the foot of a slope in a V-shaped stream valley. The remains of a horizontal mill, recently discovered during drainage operations. It consists of a rectangular pool, lined with wooden planks, with posts…

Prehistoric site – lithic scatter

SMR WI019-038—-ClonmannanProtected

Scatter of flints with possible Later Mesolithic element found on surface of E-W moraine which is truncated by the sea. (Information Prof. F. Mitchell/ Prof. P. Woodman)

The above description is derived from the…

Megalithic structure

SMR WI024-007—-Parkmore (Newcastle By.)Protected

Situated on a gentle N-facing slope 130m NNW of a cairn (WI024-006—-). Two substantial standing stones (NW stone – H 1.07m; Wth 0.6m; T 0.66m; SE stone – H 1.4m; Wth 0.9m; T 0.8m) stand 7.8m apart at either end of a…

House – 17th/18th century

SMR WI025-005—-ClonmannanProtected

Situated in gently undulating terrain. A late 17th-century brick house with a pediment and with pilasters on a rusticated lower storey. It has been restored recently. There is a well-preserved contemporary brick kiln…

Historic town

SMR WI025-012—-Corporation Lands,Glebe (Newcastle By., Wicklow Urban Ed),Wicklow,Ballynerrin Lower,Corporation Land (1St Division)Protected

The castle of Wicklow (WI025-013—-) was granted to Strongbow by Henry II in 1173 (Scott and Martin 1978, 121), which appears to indicate that there was a pre-Norman settlement at this site. The name is derived from…

Religious house – Franciscan friars

SMR WI025-012002-WicklowProtected

Situated at the NW end of the town (WI025-012—-). Founded during the reign of Henry III (1216-72), and first referred to in 1325 (Gwynn and Hadcock 1970, 261). A section of the N wall of the nave (H c. 6m) and parts…

Cross-slab

SMR WI013-029004-Kilcooleearly_christianProtected

A granite cross-slab, placed against the chancel arch at the E end of the nave of church (WI013-029001-).

The above description is derived from the published 'Archaeological Inventory of County Wicklow' (Dublin:…

Kiln – lime

SMR WI025-005001-ClonmannanProtected

Located on level ground in parkland to the NW end of the former demesne associated with Clonmannan House. Sited c. 53m N of the original Clonmannan House (WI025-005—), c. 170m N of the later Clonmannan House (NIAH…

Architectural fragment

SMR WI025-012008-Glebe (Newcastle By., Wicklow Urban Ed) (Detached Portion)Protected

Described by the Urban Survey (Bradley and King 1989, 70-1) as a ‘Stone (dims. H 0.33m; Wth. 0.29m ; D 0.14m) with Romanesque Decoration. An arch stone, possibly from the Romanesque door inserted in the south wall, is…

Settlement deserted – medieval

SMR WI025-011004-Knockrobin,Glebe (Newcastle By., Wickow Rural Ed)Protected

Testing under licence no. 02E0226 was undertaken in April 2002 in Glebe townland, Wicklow, as part of an assessment for a route-selection study for the proposed Wicklow Port Access Road. The route passes c. 55m from the…

Industrial site

SMR WI019-024003-KilloughterProtected

Archaeological licence no. 00E0490
An assessment of a proposed single-storey dwelling and associated services, at Killoughter, Co. Wicklow, was undertaken between 10 and 14 July 2000. The foundation trenches of the…

Cross

SMR WI019-001002-KilladreenanProtected

Inside the N wall of the nave of the church (WI019-001—-) simply leaning against the wall and obviously placed here recently is a cross-shaped stone (H 0.4m; T 0.04m; base Wth 0.12m; span of arms 0.11m; H of arms…

Building

SMR WI025-011007-Glebe (Newcastle By., Wickow Rural Ed)Protected

Fourteen archaeological features/deposits were uncovered during test excavation under licence no. 06E0273 in Glebe townland, Co. Wicklow. The test excavation was undertaken in advance of a proposed housing development…

Burial ground

SMR WI013-014—-Tinnapark DemesneProtected

Situated on a low sand ridge in undulating terrain. In 1944, during ploughing, a stone lined grave orientated E-W was uncovered (Raftery 1944, 166-9). In 1963 and 1964 a further seven were discovered. These produced the…

House – 16th/17th century

SMR WI013-025—-Mount Kennedy DemesneProtected

Situated c. 50m NE of a large possible motte (WI013-026—-). The present house, completed in 1784 by Thomas Cooley for Robert Cuningham, stands on the site of a large Mansion House' built by the Kennedys and destroyed…

Castle – motte

SMR WI013-026—-Mount Kennedy DemesnemedievalProtected

Natural circular mound (diam. c. 100m; H c. 6m) to the S of Mt. Kennedy House. The site rises steeply on all sides. Half-way up the slope there is a wide berm (Wth 9-14m). Above this the site rises to a circular flat…

Castle – ringwork

SMR WI019-005004-Newcastle MiddleProtected

Situated at the W end of an E-W ridge and forming part of the medieval borough of Newcastle (WI019-005—-). Earliest references to the castle formerly known as Newcastle McKynegan date to c. 1210-13 (Orpen 1908, 129).…

Cist

SMR WI019-008—-Blackditch (Newcastle By.)Protected

Situated on a gentle E-facing slope overlooking marshy ground and the sea. Rectangular cist (dims. 1.52m x 0.71m) containing a crouched inhumation of an adult male (aged c. 40) on his right side with head to W…

Castle – tower house

SMR WI019-009—-Dunran DemesnemedievalProtected

16th century castle known as Kiltimon Castle that was modified and converted into a sham castle in the 18th century when a walled garden was constructed around the medieval fortification (Corlett 2008, 50). Situated on…

Enclosure

SMR WI013-007001-Charlesland

Described in Grogan and Kilfeather (1997, 81, no. 497) as 'Situated on a gentle NE-facing slope. Circular area (diam. c. 15m) defined by a fosse visible on aerial photograph (CUCAP, BGE 83); solid circular cropmark…

Listed buildings

The National Inventory of Architectural Heritage (NIAH) is a state survey appraising buildings of architectural, historical, archaeological, artistic, cultural, scientific, social, or technical interest. Each surveyed structure receives a rating from International (the highest, for buildings of European importance) through National, Regional, Local, and Record-Only.

The NIAH records 143 listed buildings in Newcastle (65th percentile across ROI baronies). The highest-graded structure include 1 of National significance. The Republic holds 937 National-graded buildings in total, so this barony accounts for around 0% of the national total. Construction dates concentrate most heavily in the Victorian (1830-1900) period. The most-recorded building type is house (61 examples, 43% of the listed stock).

Terrain and environment

Mean elevation across the barony is 118m — the 70th percentile among 280 ROI baronies for elevation. This means it is in the top third of all baronies for elevation. This is a relatively elevated landscape by ROI standards. Elevation matters for heritage because higher-altitude baronies typically favour defensive monuments — ringforts and hilltop forts placed on prominent ground — while lowland baronies are more likely to carry the dense settlement and church networks of intensive agricultural landscapes. The barony reaches 403m at its highest point — a vertical span of more than 285m within its boundary, indicating significant topographic diversity. Mean slope is 3.5° — the 47th percentile among 280 ROI baronies for slope. This means it is in the lower half of all baronies for slope. Slope is a key control on both land use and archaeological preservation: steep ground resists ploughing and tends to preserve earthworks intact, while gentle slopes favour intensive cultivation that damages or destroys surface archaeology over time. The Topographic Wetness Index averages 11.0, the 54th percentile among 280 ROI baronies for wetness. This means it is in the upper half of all baronies for wetness. Drainage matters for heritage because poorly-drained ground preserves organic archaeology (wooden trackways, leather, textiles, and on rare occasions human remains) far better than free-draining soil; well-drained ground favours arable use but destroys organic material rapidly. Urban land covers 16% of the barony (the 96th percentile among 280 ROI baronies for urban cover. This means it is in the top tenth of all baronies for urban cover). Heavy urban coverage compresses heritage analysis: many archaeological features have been buried or destroyed by development, but the surviving record is concentrated in protected city-centre cores, and the NIAH listed-buildings count is typically high. The land-cover mosaic combines improved grassland (48%), arable farmland (18%), and urban land (16%), giving a mixed agricultural and semi-natural landscape.

Terrain measurements

Mean elevation117.6 m
Max elevation402.6 m
Mean slope3.5°
Wetness index (TWI)10.96 55th pct
Grassland48.5%
Woodland15.8% 51st pct
Cropland18.5%
Urban land16.3% 96th pct

Where this barony sits in the Republic of Ireland

Drainage
55th
Woodland
51st

Geology and preservation

Bedrock geology shapes the landscape long before any settlement begins — controlling soil drainage, agricultural potential, the survival of upstanding monuments, and the preservation of buried archaeology. The figures below come from the Geological Survey Ireland 1:100,000 bedrock map.

The bedrock underlying Newcastle is predominantly greywacke and quartzite (53% of the barony by area), laid down during the Cambrian period (67% by area, around 540 to 485 million years ago). A substantial secondary geology of slate (29%) and greywacke, shale (13%) adds further variety to the underlying landscape. The single largest mapped unit is the Bray Head Formation (53% of the barony's bedrock).

Dominant geological periodCambrian (67%)
Dominant rock typeGreywacke And Quartzite (53%)
Mapped formations12
Distinct rock types5 49th pct for diversity

Rock type composition

Greywacke And Quartzite
53%
Slate
29%
Greywacke, Shale
13%
Silver-Grey Mica Schist
2%
Slate, Sandstone
2%

Largest mapped unit: Bray Head Formation (53% of the barony)

Placename evidence

Logainm records 41 heritage-diagnostic placenames for Newcastle, drawn from townland and civil-parish names across the barony. The dominant stratum is Early Christian ecclesiastical — cill-, teampall-, and domhnach-prefixed names that record the dense network of early church foundations established between the fifth and tenth centuries. The leading diagnostic roots are cill- (24 — church), ráth- (4 — earthen ringfort), and tuaim- (4 — burial mound). This is above the ROI average of 30.7 heritage placenames per barony. The presence of multiple heritage strata side by side indicates layered occupation of the landscape across successive prehistoric and historic periods. Logainm records 212 placenames for Newcastle (predominantly townland names). Of these, 41 (19%) carry one of the diagnostic Gaelic roots tracked above; the remainder draw on more generic landscape vocabulary that does not encode a heritage period.

Pre-Christian / Early Medieval Defensive

RootCountMeaning
ráth-4earthen ringfort
dún-1hilltop or promontory fort

Early Christian Ecclesiastical

RootCountMeaning
cill-24church (early)
gráinseach-3monastic farm / grange
teampall-2church (later medieval)
tobar-1holy well
cillín-1unconsecrated burial ground

Burial, Ritual, and Norse-Contact

RootCountMeaning
tuaim-4burial mound

About this profile

Click any section below to expand.

What is a barony?

A barony is a historic administrative unit in Ireland, broadly equivalent to an English hundred. The 280 baronies used here are from the OSi 2019 National Statutory Boundaries (generalised 20m), covering the 26 counties of the Republic of Ireland. Baronies derive from the Norman period, were formalised in the 17th century, and have not been redrawn for statistical purposes. They vary enormously in area, from compact urban baronies in Dublin to vast upland baronies in Connacht, and should not be compared by raw site count without accounting for area differences.

What counts as a site?

This profile combines three distinct heritage registers, each with its own definition of what constitutes a recordable site:

  • Archaeological sites (NMS). The National Monuments Service Sites and Monuments Record (SMR) catalogues every known archaeological monument or site of archaeological interest in the Republic, from prehistoric burial mounds and ringforts to medieval churches and post-medieval defensive works. Inclusion does not require legal protection — only that the site has been identified, surveyed, and assessed as having archaeological value. A separate subset of these sites lies within a recorded protection zone, which gives them statutory protection under the National Monuments Acts.
  • Listed buildings (NIAH). The National Inventory of Architectural Heritage records buildings of architectural, historical, archaeological, artistic, cultural, scientific, social, or technical interest. Each surveyed structure is appraised on a five-tier scale: International, National, Regional, Local, and Record-Only. The NIAH appraisal is informational rather than strictly statutory, but it underpins local-authority Record of Protected Structures (RPS) listings.
  • Heritage placenames (Logainm). Logainm is the authoritative database of Irish placenames maintained by the Placenames Branch. This profile applies a heritage-diagnostic classifier to the Irish-language form of each townland name, flagging roots that signal defensive sites (ráth-, lios-, dún-, caiseal-, cathair-), ecclesiastical foundations (cill-, teampall-, domhnach-, mainistir-), prehistoric burial-ritual features (tuaim-, carn-, leaba-), or Norse-contact settlement (gall-). Townlands without one of these diagnostic roots are not flagged here — they may still carry historical significance, but that significance is not encoded in the name itself.
Editorial principles

The narrative sections of this profile follow several explicit principles:

  • Evidential. Every claim about this barony’s heritage character is anchored in the underlying register data. Where a site count, a placename count, or a percentile rank is cited, it is computed from the source datasets at export time, not estimated.
  • Comparative. Counts and metrics are reported alongside their percentile rank against the other 279 ROI baronies. A barony with 50 ringforts in absolute terms could be unusually high or unusually low depending on its size and regional context; percentile ranking removes that ambiguity.
  • Transparent on limits. Where a register has known coverage gaps, survey biases, or data-quality issues that affect this barony’s figures, the profile flags them rather than presenting the numbers as definitive.
  • No interpretation beyond what the data supports. The narrative does not speculate about historical events, social dynamics, or cultural meaning beyond what the recorded heritage and placename evidence directly attests.
Data caveats and limits
  • NMS Sites and Monuments Record is the product of survey campaigns conducted at different intensities across different counties and decades. Some baronies have been surveyed more thoroughly than others, and absolute counts should be read in that light. Sites destroyed by development before survey are typically not represented; sites in heavily forested or upland terrain are sometimes under-recorded.
  • NIAH coverage is broadly complete for the Republic of Ireland but the survey was conducted on a rolling county-by-county basis, and the most recent appraisal date varies. Buildings demolished or substantially altered after their original survey may still appear in the register; conversely, recent buildings of merit may not yet have been appraised.
  • Logainm classification applies a deliberately conservative pattern-matching approach to the Irish-language townland forms. The classifier prioritises true positives over recall: a townland may carry a heritage signal that the classifier doesn’t recognise, particularly where the diagnostic root has been heavily anglicised or where the townland name draws on a less common term. The 60,000+ townland records and ~9,800 classified placenames give a substantial signal at barony scale, but individual townland names should be checked against Logainm directly for definitive interpretation.
  • Period attribution. The chronological distribution reflects only those NMS sites that carry a recognised period attribution in the source data. Sites listed as “Unknown” period are excluded from the dated subset.
  • Boundary changes. Some baronies have undergone minor boundary adjustments since their 19th-century definition; the OSi 2019 generalised boundaries used here are the current statutory definition and may differ slightly from historical maps in border areas.
  • Bedrock geology is mapped at 1:100,000 scale, which means local variation within a barony — small pockets of different rock type, mineral veins, alluvium overlying bedrock — is generalised. The dominant-system and rocktype figures are area-weighted, so a barony reading “70% Carboniferous limestone” may still contain small but archaeologically important pockets of older or younger rock. Around 3% of GSI polygons do not match the lexicon and contribute no rocktype or system attribution.
Data sources
  • National Monuments Service — Sites and Monuments Record (SMR)
    Contributes archaeological site records, classifications, periods, and recorded protection-zone status.
    © Department of Housing, Local Government and Heritage · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://data.gov.ie/dataset/national-monuments-service-archaeological-survey-of-ireland
  • National Inventory of Architectural Heritage (NIAH)
    Contributes listed-building records and architectural-significance grades.
    © Department of Housing, Local Government and Heritage · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://data.gov.ie/dataset/national-inventory-of-architectural-heritage-niah-national-dataset
  • Logainm — Placenames Database of Ireland
    Contributes Irish-language and English townland names, civil parish associations, and barony assignments for the heritage-placename classifier.
    © Government of Ireland, Placenames Branch · Licence: Creative Commons Attribution-NoDerivs 3.0 Ireland (CC BY-ND 3.0 IE)
    https://www.logainm.ie/
  • Ordnance Survey Ireland — National Statutory Barony Boundaries 2019
    Contributes the canonical 280 barony boundaries (generalised 20m).
    © Ordnance Survey Ireland / Government of Ireland · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://data-osi.opendata.arcgis.com/
  • EURODEM — European Digital Elevation Model
    Contributes elevation, slope, and topographic-wetness statistics, plus the hillshade rendering on each barony’s topographic map.
    © Maps for Europe · Licence: Open data
    https://www.mapsforeurope.org/datasets/euro-dem
  • ESA WorldCover
    Contributes land-cover classifications for grassland, woodland, cropland, wetland, urban, and water statistics.
    © European Space Agency · Licence: Creative Commons Attribution 4.0 (CC BY 4.0)
    https://esa-worldcover.org/en
  • Geological Survey Ireland — 1:100,000 Bedrock Geology
    Contributes bedrock geological data: dominant geological system (Carboniferous, Devonian, etc.), rock-type composition, and formation-level mapping, with the GSI Bedrock Lexicon providing descriptive attributes.
    © Geological Survey Ireland · Licence: Open data, Creative Commons Attribution 4.0 (CC BY 4.0)
    https://www.gsi.ie/en-ie/data-and-maps/Pages/Bedrock.aspx

Explore more: Search any of the 280 ROI baronies, browse by historical province, or read the methodology and data sources for the full Republic of Ireland Heritage Tool.

Spotted an error? This dataset is updated continuously. Email contact@danielkirkpatrick.co.uk with corrections, missing records, or suggestions for improvement.