Clonlyon Castlequarter

39 registered freehold parcels lie mostly in Clonlyon Castlequarter, from 1,058 m² to 291,535 m² (29.15 ha, 72.04 acres). The dashed line is the townland's boundary; 37 neighbouring parcels touch it.

Download the townland: DXF, in Irish Transverse Mercator metres, with its boundary, parcels and buildings; GeoJSON or KML.

No zone of a development plan covers Clonlyon Castlequarter in the national zoning. Outside zoned towns and villages, the county development plan's rural policies apply to each application.

Source: Tailte Éireann and the Department of Housing (MyPlan), national zoning, CC BY 4.0.

• 19 Jun 2025Conditional

  an extension to the rear of existing dwelling. The application will also include the renovation of existing derelict dwelling, minor revisions to existing elevations, demolishing of existing rear kitchen, upgrade of existing septic tank and percolation area and all associated site works and drainage

  Permission, 1 home · Offaly County Council, 2560250

• 21 May 2025N/a

  Construction of an extension to the rear of existing dwelling. The application will also include the renovation of existing derelict dwelling, minor revisions to existing elevations, demolishing of existing rear kitchen, upgrade of existing septic tank and percolation area and all associated site works and drainage

  Permission · Offaly County Council, 2560183

• 26 Apr 2024Conditional

  a new dwelling, a new proprietary effluent treatment and polishing filter, a new replacement road entrance, and all ancillary site works.

  Permission, 1 home · Offaly County Council, 2460145

• 17 Aug 2023Conditional

  DOMESTIC GARAGE/FUEL SHED AND ALL ANCILLARY SITE WORKS

  Retention, 1 home · Offaly County Council, 23365

Source: National Planning Applications, Department of Housing, Local Government and Heritage, CC BY 4.0. Applicants are not shown.

Designated sites

• Proposed Natural Heritage Area: Clonlyon Glebe Bog 000893

Recorded monuments

• OF014-001 Enclosure
  Description

  Not visible at ground level. Not marked on first two editions of the OS 6-inch maps but hachured as circular enclosure on third edition. The above description is derived from the published 'Archaeological Inventory of County Offaly' (Dublin: Stationery Office, 1997). In certain instances the entries have been revised and updated in the light of recent research. Date of upload: 23 May 2011

• OF014-002 Enclosure
  Description

  Not visible at ground level. Marked on 1838 edition of the OS 6-inch map as a circular enclosure with field boundary intersecting N side of site. The above description is derived from the published 'Archaeological Inventory of County Offaly' (Dublin: Stationery Office, 1997). In certain instances the entries have been revised and updated in the light of recent research. Date of upload: 23 May 2011

• OF014-013 Castle - tower house
  Description

  Situated on top of high ground with good extensive views. Originally four storeys high but now stands three storeys high, rectangular tower (ext. dims. 11m E-W; 8.5m N-S; wall T 2.1m) built with roughly coursed limestone rubble with slight base batter evident. Only the S and W walls and portion of the N wall survive. Originally the main door was in the now destroyed E wall giving access to a spiral stairs now partially destroyed in the SE angle from which all rooms except ground floor were accessed. The ground floor is covered in rubble fill with no architectural features evident. The first floor has two ogee headed windows with hollowed spandrels and punch dressed jambs set in wide embrasures. Mural passage in the W end of the N wall gives access to a garderobe in the NW angle. Directly above at second floor level another mural passage gives access to an angle loop at NW angle with similar mural passage in the W end of the S wall which leads to opposing angle loop in the SW angle. Destroyed fireplace in the W wall which has chamfered punch dressed jambs. Directly over this second floor there is a barrel vaulted attic above which there was a third floor now destroyed. The bawn wall is attached to the NW angle and has a later 17th-century house attached to the N end of the W wall of the bawn. This rectangular shaped gable ended building (ext. dims. 15m E-W; 7.5m N-S; wall T 1m) has rectangular chimney stacks at both gable ends. Two storeys high built with roughly coursed limestone rubble with only the gable ends and W portion of the S wall survives. Circular turret like structure or bartizan carried on external corbels on the NW angle at first floor level (ext. diam. 2.4m; wall T 0.6m) with several musket loops visible. This structure is very similar to the corner turrets in Ulster and Scottish castles. The tower house is very similar to Coole castle (OF015-017----) in layout and architectural features which give it a late 16th-century date with the nearby gable ended house with its rectangular chimney stacks and circular bartizan a possible mid-17th-century date. (O' Flanagan 1933, vol. 1, 85; Loeber 1988, 134) The above description is derived from the published 'Archaeological Inventory of County Offaly' (Dublin: Stationery Office, 1997). In certain instances the entries have been revised and updated in the light of recent research. Date of upload: 23 May 2011

• OF014-014 Enclosure
  Description

  No surface remains of any potential monument of archaeological significance in area marked on 6-inch ordnance survey map. Potential enclosure identified from aerial photographs taken in 1973 (GSI N 525/526/527). The above description is derived from the published 'Archaeological Inventory of County Offaly' (Dublin: Stationery Office, 1997). In certain instances the entries have been revised and updated in the light of recent research. Date of upload: 23 May 2011

Architectural heritage

No building of the National Inventory of Architectural Heritage stands in the townland of Clonlyon Castlequarter.

Designated sites: National Parks and Wildlife Service. Recorded monuments: Sites and Monuments Record, National Monuments Service. Buildings: National Inventory of Architectural Heritage. Department of Housing, Local Government and Heritage, CC BY 4.0. Works at or in relation to a recorded monument need two months' written notice to the National Monuments Service (National Monuments (Amendment) Act 1994, section 12).

Radon

About 1 in 10 homes in this area is likely to have high radon levels. Testing a home

Landslides

Susceptibility low, low (inferred), on the 1:50,000 map.

Terrain model

No LiDAR survey of the Office of Public Works covers the centre of the townland of Clonlyon Castlequarter.

Flooding

The flood maps of the Office of Public Works: floodinfo.ie.

Radon Risk Map of Ireland, Environmental Protection Agency; Landslide Susceptibility Classification, Geological Survey Ireland; both CC BY 4.0. LiDAR: contains Irish Public Sector Data (Geological Survey Ireland & the Office of Public Works) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence.

No address of the register names Clonlyon Castlequarter with five sales or more. The sales of the area are on the page of Co. Offaly.

Name

Clonlyon Castlequarter · Baile Caisleáin Chluain Laighean

Area

2,656,452 m² (265.65 ha, 656.42 acres)

Civil parish

Clonmacnoise, and its townlands

Barony

Garrycastle

Electoral division

Lumcloon, the unit of the census

Census 2022

Lumcloon electoral division: 353 people in 143 households; 76% of households own their home; 19% of homes were built since 2001; 8% of dwellings stood vacant on census night, and 0% were holiday homes.

Neighbouring townlands

Clonbonniff, Clongawny, Clonlyon (Gerald), Clonlyon Glebe, Derryharney

Placenames

Clonlyon Castlequarter on logainm.ie, the Placenames Database of Ireland

Townlands, civil parishes, baronies and electoral divisions, National Statutory Boundaries, Tailte Éireann, CC BY 4.0. Census 2022, Small Area Population Statistics by electoral division, Central Statistics Office, CC BY 4.0. A townland is the smallest land division of Ireland, and the unit of a rural address; old registers such as the 1901 and 1911 censuses file it under its civil parish and barony.