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South Dublin - 12th Lock Bridge - 2025-09-08 10-28-04 001Photo: Tdr112 · CC BY-SA 4.0
25buildings on the National Inventory
History of Deansrath · National Inventory of Architectural Heritage

Deansrath: 25 buildings on the National Inventory

Of its homes, 0.7% were built before 1919, against 3.4% in the typical town. Its oldest building dates from 1740. The Sites and Monuments Record adds 13 archaeological sites inside the town. For every 10,000 residents, Deansrath has 18 buildings on the record; the typical town has 48.

On the National Inventory
25
18 per 10,000 residents
typical town: 48
Of national importance
0
NIAH National or International, and national monuments
Archaeological sites
13
Sites and Monuments Record
Oldest building
1740
the first date on its record
Homes built before 1919
0.7%
typical town: 3.4%
In pictures

Deansrath in 4 photos

First come 11th Lock and 9th Lock. There are photos of 3 of Deansrath’s recorded places so far. The oldest building pictured in Deansrath is 9th Lock, from 1750.

Photos from Wikimedia Commons, copied to our own server, each credited to its photographer with its licence; names open the place’s page. Tap a photo to step through them full screen.

The map

Where Deansrath’s history is

Every building and site on the record inside the town, by its rating.

10th Lock · Regional rating (NIAH) · 1770–180011th Lock · Regional rating (NIAH) · 1770–180012th Lock Bridge · Regional rating (NIAH) · 1760–17809th Lock · Regional rating (NIAH) · 1750–1770Cappaghmore Lodge · Regional rating (NIAH) · 1820–1840Farm house, Milltown · Regional rating (NIAH) · 1840–1870Grange Castle · Regional rating (NIAH) · 1740–1760Grange Cottage · Regional rating (NIAH) · 1800–1830House, 1 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, 1 Nangor Road, Clondalkin · Regional rating (NIAH) · 1870–1890House, 2 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, 2 Nangor Road, Clondalkin · Regional rating (NIAH) · 1870–1890House, 3 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, 3 Nangor Road, Clondalkin · Regional rating (NIAH) · 1870–1890House, 4 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, 4 Nangor Road, Clondalkin · Regional rating (NIAH) · 1870–1890House, 5 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, 6 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, 7 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, 8 Leinster Terrace, Nangor Road, Clondalkin · Regional rating (NIAH) · 1900–1920House, Lucan Road · Regional rating (NIAH) · 1840–1880Lock keeper's house, 9th Lock Road · Regional rating (NIAH) · 1800–1830Omer Lock House · Regional rating (NIAH) · 1780–1800Outbuilding, Grange (Ba. W By.) · Regional rating (NIAH) · 1800–1830P&P Motor Factors · Regional rating (NIAH) · 1840–1880
Regional and other sites

Hover a dot for its name; tap one to open its page.

The 25, by rating
25 Regional and other sites

The National Inventory of Architectural Heritage is the State’s survey of buildings from 1700 to today, county by county; each record gives a rating, dates, a type and an appraisal. Being on it is not legal protection: that is each council’s Record of Protected Structures.

Points from the National Inventory of Architectural Heritage and the Sites and Monuments Record, Department of Housing, Local Government and Heritage (CC BY 4.0).

Regional and other sites

25 historic places in Deansrath

Buildings rated Regional, of significance in their region, and archaeological monuments with an encyclopedia article.

All 9, A to Z

16 recorded by their type and address

16 are recorded only by their type and address: 15 homes and 1 farm and estate buildings; most date from the 19th century.

18th century2
19th century14

See all 16 on the map

What’s recorded

80% of Deansrath’s recorded buildings are homes

The second-largest group on the record is walls, gates and bridges, with 4. At the top of the record: Grange Castle and 9th Lock. All of Deansrath’s recorded buildings carry a regional rating.

Homes20
Walls, gates and bridges4
Farm and estate buildings1

Types as the National Inventory records them, grouped; a building keeps the type it was built as.

How old

Most of Deansrath’s dated buildings come from the 19th century

Each building by the first date on its record.

1500–1799 three centuries6
19th century 1800–189911
1900 and later to today8

6 of the 25 dated ones were built before 1800. The oldest is Grange Castle, from 1740.

Archaeology and around

Archaeology in Deansrath

The Sites and Monuments Record lists every known archaeological site; most are field monuments with little to see. By kind:

13 archaeological sites inside the town

Sites on the Record of Monuments and Places, the statutory list drawn from this record, are protected by law: anyone planning work at or near one must give the National Monuments Service two months’ notice.

Enclosure3 records
Castle - tower house2 records
Castle - unclassified1 record
Church1 record
Graveyard1 record
Moated site1 record
Water mill - unclassified1 record
Barrow - ring-barrow1 record
Field system1 record
Fulacht fia1 record

Just outside Deansrath: 19

12th LockRegional rating (NIAH) · 100 m outside the town
Polly Hop'sRegional rating (NIAH) · 100 m outside the town
Castle Bagot HouseRegional rating (NIAH) · 700 m outside the town
PeamountRegional rating (NIAH) · 1.3 km outside the town
Kilcarberry HouseRegional rating (NIAH) · 300 m outside the town
The ManorRegional rating (NIAH) · 1.2 km outside the town
Casement Aerodrome (hangar)Regional rating (NIAH) · 1.2 km outside the town
St Luke's C. of I. ChurchRegional rating (NIAH) · 1.4 km outside the town
Casement Aerodrome (hangar)Regional rating (NIAH) · 1.2 km outside the town
Casement Aerodrome (officers' mess)Regional rating (NIAH) · 1 km outside the town
Casement Aerodrome (office)Regional rating (NIAH) · 1.1 km outside the town
Casement Aerodrome (sports hall / centre / gymnasium)Regional rating (NIAH) · 1.1 km outside the town
Casement Aerodrome (church / chapel)Regional rating (NIAH) · 1.1 km outside the town
Farm house, MilltownRegional rating (NIAH) · 100 m outside the town
Outbuilding, MilltownRegional rating (NIAH) · 100 m outside the town
Gates, MilltownRegional rating (NIAH) · 500 m outside the town
Hospital, Peamount Hospital, NewcastleRegional rating (NIAH) · 1.3 km outside the town
Tank, Peamount Hospital, NewcastleRegional rating (NIAH) · 1.2 km outside the town
Church, Peamount Hospital, NewcastleRegional rating (NIAH) · 1.1 km outside the town
Homes by age

Few of Deansrath’s homes are newer than 2011: 2.7%, against 5.8%

Just 0.6% of the homes in Deansrath went up between the wars, short of the typical 3.9%. The period that gave Deansrath the most homes is from 1946 to 1980: 40%. 35% of Deansrath’s homes were built from 1981 to 2000, more than the typical town’s 24%.

0.7%
Before 1919
0.6%
1919–45
40%
1946–80
35%
1981–2000
21%
2001–10
2.7%
Since 2011
DeansrathTypical town

Census 2022, households by the year their home was built (CSO, Small Area Population Statistics, CC BY 4.0); the typical town is the middle Irish town of 2,500 or more.

Neighbours

Deansrath and its neighbours

TownPeopleNational InventoryNationalArchaeological sites
Deansrath13,74325013
Esker19,1101304
Clondalkin22,78871026
Ronanstown11,1302103
Ballyowen14,739203
Cherry Orchard8,280601
Lucan23,033169226
In brief

Deansrath in brief

Deansrath has 25 places on the record. Of the whole list, 80% are homes. Its homes are mostly newer: 0.7% were built before 1919, against 3.4% in the typical town.

The archaeological record adds 13 sites. The oldest is Grange Castle, from 1740. The rest is about typical: it has 25 recorded buildings, about typical for a town its size (the middle one has 72); and per resident it sits near the middle of Irish towns of 2,500 or more.

How to read these numbers

What this data can and can’t tell you

  • The National Inventory. The State’s survey of post-1700 buildings, made county by county since 1990 (NIAH); a few records are older. It records; it does not protect.
  • Ratings. International and National: of significance across Ireland or beyond. Regional: in its region. Local and record-only buildings get no page here.
  • Archaeology. The Sites and Monuments Record (National Monuments Service) lists known archaeological sites; the national monuments to visit and the sites with an encyclopedia article get pages here.
  • Protection. Both registers are surveys, not protection: a building is protected by its council’s Record of Protected Structures, and no national open list joins the 31 councils’ records.
  • The grade. Ireland’s History grade is not built yet: the page describes, and gives no grade.

Questions about Deansrath’s history

How many historic buildings are recorded in Deansrath?

25 buildings on the National Inventory, from the National Inventory of Architectural Heritage.

What is the oldest building in Deansrath?

Grange Castle: the first date on its record is 1740.

Are there archaeological sites in Deansrath?

Yes: the Sites and Monuments Record lists 13 archaeological sites inside Deansrath.

How old are the homes in Deansrath?

0.7% of its homes were built before 1919, against 3.4% in the typical town.

Are the buildings on this page protected?

Being on the National Inventory or the Sites and Monuments Record is a record, not protection by itself: buildings are protected by their council’s Record of Protected Structures, which each council keeps and no national open list gathers, so this page can’t say which are on it.

History is described here, not graded.

Source: National Inventory of Architectural Heritage and Sites and Monuments Record, Department of Housing, Local Government and Heritage (CC BY 4.0); Wikidata (CC0).

Sources: National Inventory of Architectural Heritage (buildingsofireland.ie) · Sites and Monuments Record and the National Monuments Service’s monuments to visit · CSO Census 2022 (homes by the year built) · Photos: Wikimedia Commons, including the National Library of Ireland’s collections, each credited with its licence and copied to our own server · Wikidata (CC0) for other names and articles. Under Creative Commons Attribution 4.0 (CC BY 4.0).

Contains Central Statistics Office (CSO) data, Census 2022, and Tailte Éireann boundaries (CSO Urban Areas, Small Areas, local electoral areas, constituencies), under Creative Commons Attribution 4.0 (CC BY 4.0).