Photo: William Murphy from Dublin, Ireland · CC BY-SA 2.0Stillorgan: 1 building on the National Inventory
Stillorgan’s record is short for its size: 0.5 buildings per 10,000 residents, against 48 in the typical town. Its oldest building dates from 1700. The Sites and Monuments Record adds 9 archaeological sites inside the town. Of its homes, 1.5% were built before 1919, against 3.4% in the typical town.
typical town: 48
Where Stillorgan’s history is
Every building and site on the record inside the town, by its rating.
Hover a dot for its name; tap one to open its page.
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).
One historic place in Stillorgan
Buildings rated Regional, of significance in their region, and archaeological monuments with an encyclopedia article.
Archaeology in Stillorgan
The Sites and Monuments Record lists every known archaeological site; most are field monuments with little to see. By kind:
9 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.
| Ecclesiastical site1 record |
| Well1 record |
| Church1 record |
| Graveyard1 record |
| Graveslab1 record |
| Ecclesiastical enclosure1 record |
| House - medieval1 record |
| Flat cemetery1 record |
| Castle - unclassified1 record |
The biggest share of Stillorgan’s homes dates from 1946 to 1980: 58%
Since 2011 Stillorgan has added 7.1% of its homes, close to the typical town’s 5.8%. Few of Stillorgan’s homes date in the 2000s: 10%, the norm 25%. Homes dated between the wars are commoner in Stillorgan than in most towns: 7.9%, against 3.9%.
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.
4 notable people born in Stillorgan before 1900
From Henry Guinness (1858) to Walter Peterson (1883): their lives on one timeline, earliest first.

Everyone born in Stillorgan → Birthplaces from Wikidata, each checked against the person’s English Wikipedia article; portraits from Wikimedia Commons.
How Stillorgan compares with 16 towns its size
Towns of 17,500 to 19,100 residents, by buildings on the record.
14 have more. Stillorgan is level with Dún Laoghaire. The typical town its size has 16.
Stillorgan and its neighbours
| Town | People | National Inventory | National | Archaeological sites |
|---|---|---|---|---|
| Stillorgan | 18,212 | 1 | 0 | 9 |
| Sandyford | 8,844 | 5 | 0 | 2 |
| Blackrock | 12,816 | 13 | 0 | 6 |
| Booterstown | 8,505 | 0 | 0 | 4 |
| Dundrum | 16,570 | 2 | 0 | 11 |
| Monkstown | 9,831 | 20 | 0 | 15 |
| Clonskeagh | 14,142 | 3 | 1 | 5 |
Stillorgan in brief
Stillorgan has 1 place on the record. Of the 4 people born here before 1900, the best known include William Orpen (1878), Walter Peterson (1883) and Lucy Guinness (1870). Its homes are mostly newer: 1.5% were built before 1919, against 3.4% in the typical town.
The archaeological record adds 9 sites. The oldest, Mount Salem, dates from 1700. Most towns its size have more recorded buildings: the typical one has 16.
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 Stillorgan’s history
How many historic buildings are recorded in Stillorgan?
1 building on the National Inventory, from the National Inventory of Architectural Heritage.
What is the oldest building in Stillorgan?
Mount Salem: the first date on its record is 1700.
Are there archaeological sites in Stillorgan?
Yes: the Sites and Monuments Record lists 9 archaeological sites inside Stillorgan.
How old are the homes in Stillorgan?
1.5% 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) · Wikidata and English Wikipedia for people born here · 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).