Castletenison Demesne

106 registered freehold parcels lie mostly in Castletenison Demesne, from 5 m² to 1,086,113 m² (108.61 ha, 268.38 acres). The dashed line is the townland's boundary; 35 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 Castletenison Demesne 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.

• 1 Jul 2021N/a

  Permission for development consisting of the construction of a new dwelling house, entrance, wastewater treatment system and polishing filter, together with all ancillary site works and services at

  Permission, 1 home · Roscommon County Council, 21372

• 9 Dec 2020N/a

  for construction of a new dwelling house, entrance, wastewater treatment system and polishing filter together with all ancillary site works and services at

  Permission, 1 home · Roscommon County Council, 20526

• 20 Mar 2017Conditional

  the development will consist of the construction of a 4 berth marina consisting of pile retained linked pontoon moorings, access walkway and bridge extending c20.6m from an existing landing stage and ancillary works at

  Permission · Roscommon County Council, 17113

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

Designated sites

No designated site (Special Area of Conservation, Special Protection Area, Natural Heritage Area or proposed one) touches the townland of Castletenison Demesne.

Recorded monuments

• RO003-008 Promontory fort - inland
  Description

  On a promontory jutting SE from the W shore of Lough Meelagh (dims. c. 2 km E-W; c. 600m-1 km N-S). The promontory (dims. 100m NW-SE; 40m NE-SW; H 2-3m), which is planted with mature deciduous trees, is separated from the mainland by a dry fosse (L 18m; Wth of top 4-7m; int. D 0.4-1.8m; ext. D 0.7-1.3m) at the isthmus. The fosse is crossed by a 19th-century carriageway which circumscribes the promontory altering its contours by infilling and revetting, and adding drystone walls to either end of the fosse. Rath (RO003-090----) is c. 140m to the SW, and promontory fort (RO003-091----) is c. 160m across the lake to the SE. Compiled by: Michael Moore Date of upload: 24 August 2010

• RO003-082 Crannog
  Description

  Situated c. 60m from the N shore of Lough Meelagh (dims c. 2km E-W; c. 600m-1km N-S). A mound of stones (diam. c. 10m) situated about 0.2-1m below the present level of the water, but with no evidence of timber construction visible. Compiled by: Michael Moore Date of upload: 24 August 2010

Architectural heritage

• Kilronan Castle, gate lodge, 1850–1890 · Regional interest
  Description

  Detached three-bay single-storey former gate lodge to Kilronan Castle, built c.1870 on an L-plan with return and extension to rear. Now in use as private dwelling. Comprising projecting gable-fronted entrance porch and projecting gable-fronted bay with canted-bay window. Pitched tiled roof with limestone coping, scroll finials, kneelers to eaves and rendered chimneystacks. Lean-to roof to rear with castellated parapet to west side. Snecked limestone walls with quoins and chamfered window surrounds. Hood moulding to front pointed-arched doorway. Pointed-arched and square-headed windows with mullions. Replacement windows and doors to site. Detached later outbuildings to site. House on slightly elevated position and is accessed via limestone steps. Bounded by stone wall. Octagonal ashlar limestone gate piers to Kilronan Castle with decorative stone caps set within snecked limestone wall with cast-iron gates.

• Kilronan Castle, country house, 1800–1840 · Regional interest
  Description

  Detached U-plan eight-bay two-storey late Gothic Revival castellated former country house with central four-stage tower, built c.1873. Designed by Thomas Newenham Deane, it abuts an earlier revived Gothic house built c.1820. In ruinous condition and undergoing renovation. Replacement pitched slate roof to north-west wing with oversailing eaves, stone coping, cut stone chimneystacks and cast-iron rainwater goods. Random coursed limestone walls with ashlar walls to earlier rear section. Remains of advanced entrance porch, parapet, gable-fronted entrance with gabled dormers and canted bay to north-west. Pointed-arched, trefoil and square-headed window openings some with hood and label mouldings. Oriel window to side elevation with some tracery windows. Cobbled basement area to north-west side with underground passageway to open sunken track. Three blind-arched openings on western side. House is located on elevated site in mature grounds with rear elevation overlooking Lough Meelagh. Landscaped garden to rear. Limestone arched gateway to demesne to north-east.

• Kilronan Castle, walled garden, 1780–1820 · Regional interest
  Description

  Walled garden and remains of outbuildings, built c.1800, located to north-west of Kilronan Castle. Walled garden comprises random coursed limestone wall with brick dressings to openings. Brick-faced wall to north and west with basal remains of glasshouses surviving along north wall with arches and pipes surviving. Remains of glasshouses and smaller walled garden abutting north side of walled garden. Ruinous outbuildings abuts east side of walled garden.

• Kilronan Castle, gate lodge, 1860–1880 · Regional interest
  Description

  Detached T-plan three-bay single-storey former gate lodge to Kilronan Castle, built c.1870, with porch to front and extensions added to rear c.1980. Now used as a farmhouse. Pitched terracotta-tiled roof with ridge tiles, rendered chimneystack, carved timber barge-boards and cast-iron rainwater goods. Flat roofs to extensions. Random coursed rock-faced limestone walls with sandstone string course. Terracotta tiles and timber brace-work with plaster infill to gables. Render to extensions. Cast-iron diamond-paned windows with box-bay window to façade. Timber battened door to porch. Glazed timber porch with terracotta tiles to floor. Timber casement windows and glazed timber door to extension. Modern agricultural outbuildings to site. Wrought-iron gates and railings to entrance.

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 5 homes in this area is likely to have high radon levels. Testing a home

Landslides

Susceptibility moderately high, moderately low, low, low (inferred), on the 1:50,000 map; parts are water.

Terrain model

No LiDAR survey of the Office of Public Works covers the centre of the townland of Castletenison Demesne.

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 Castletenison Demesne with five sales or more. The sales of the area are on the page of Co. Roscommon.

Name

Castletenison Demesne · Diméin Chaisleán Tenison

Area

2,472,088 m² (247.21 ha, 610.87 acres)

Civil parish

Kilronan, and its townlands

Barony

Boyle

Electoral division

Keadew, the unit of the census

Census 2022

Keadew electoral division: 544 people in 188 households; 71% of households own their home; 36% of homes were built since 2001; 17% of dwellings stood vacant on census night, and 13% were holiday homes.

Neighbouring townlands

Alderford, Annagh, Carrow More, Clooncruffer, Cuiltygower, Drumdaff, Kilmacroy, Knockranny, Tullytawen

Placenames

Castletenison Demesne 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.