Trostan

27 registered freehold parcels lie mostly in Trostan, from 95 m² to 170,101 m² (17.01 ha, 42.03 acres). The dashed line is the townland's boundary; 18 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 Trostan 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.

• 16 Jun 2026Conditional

  permission will consist of alterations to site boundaries and re-location of a slatted cattle shed with underground effluent storage tank previously granted under Plan Ref No. 2460041 and all associated site development works

  Permission · Monaghan County Council, 2660249

• 8 Jun 2026N/a

  permission for a development which will consist of alterations to Site boundaries and re-location of a slatted cattle shed with underground effluent storage tank previously granted under Plan Ref No. 2460041 and all associated site development works

  Permission · Monaghan County Council, 2660239

• 7 Feb 2024Conditional

  permission for a development consisting of a slatted cattle shed with underground effluent storage tank and all associated site development works

  Permission · Monaghan County Council, 2460041

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: Monalty Lough 001608
• Proposed Natural Heritage Area: Spring And Corcrin Loughs 001671

Recorded monuments

• MO031-041 Ringfort - unclassified
  Description

  Situated in a col between drumlins, the summits of which are c. 220m to the SE and c. 600m to the NW, and it is also overlooking the S end of the triangular Spring Lough (dims c. 540m NNE-SSW; 275m NW-SE at SW) which is c. 150m to the NE. It is depicted as an embanked enclosure (ext. diam. c. 35m) described as a ‘fort’ in gothic lettering only on the 1834 edition of the OS 6-inch map. No archaeological feature is visible at ground level in pasture. The rath (MO031-043----) is c. 200m to the SE. The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 28 July 2017

• MO031-042 Souterrain
  Description

  Located towards the bottom of the S-facing slope of a drumlin. A souterrain came to light in May 1963 and it was recorded by Ellen Prendergast of the National Museum of Ireland, but it could not be preserved. A subcircular chamber (int. dims 2.5m x 3m; H 2.5m) of rough corbelled walls had three drystone walled and lintelled passages radiating from it. At S an entrance (Wth 0.42-0.5m; H 0.55m) led to a passage (visible L 2m) and at NW an entrance (Wth 0.6m; H 0.65m) led to a passage (visible L 2m) but an entrance at N was completely blocked. Its precise location is not known now. (NMI, Topographical file) The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 28 July 2017

• MO031-043 Ringfort - rath
  Description

  Situated towards the top of the NE-facing slope of a drumlin. This is an overgrown circular area (diam. 27m E-W; 25m N-S) with rock outcrop that slopes down slightly to the S (H 0.6m), which is defined by an overgrown earthen bank (Wth of base 4.6-6m; int. H 0.4m at N to 1.2m at S; ext. H 0.8m at S to 1.6m at N) with internal and external stone facing. There is an entrance gap (Wth of base 1.4m) at NW which is probably original. The ringfort (MO031-041----) is c. 200m to the NW, and raths (MO031-044----) and (MO031-045----) are c. 200m to the S and c. 180m to the ESE respectively. The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 28 July 2017

• MO031-044 Ringfort - rath
  Description

  Situated just off the crest of the S-facing slope of a small drumlin. This was described in 1966 as a grass and scrub-covered area (diam. 25m N-S) defined by an overgrown earthen bank (at N: Wth of base 4m; Wth of top 1.1m; int. H 1.15m; ext. H 1m) NW-NE that was reduced to an overgrown scarp (at S: H 1.9m) elsewhere. There was no visible fosse or entrance. Rath (MO031-043----) is c. 200m to the N, and rath (MO031-045----) is c. 180m to the NE. It had been removed by 1995 (OSI images). There are farm buildings just to the SE. The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 28 July 2017

• MO031-045 Ringfort - rath
  Description

  Located on a high shelf and at the crest of a S-facing slope. It was described in 1966 as a completely overgrown area defined by an earthen bank (at N: Wth of base 4m; Wth of top 1m; int. H 1.15m; ext. H 1.9m) with no visible fosse. It has been removed since then, but it can be seen as a cropmark of an oval enclosure (dims c. 50m N-S; c. 35m E-W) defined by a single fosse feature and bisected by an ENE-WSW field bank on the OSI aerial images (1995). Rath (MO031-043----) and rath (MO031-044----) are c. 180m to the NW and SW respectively. The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 28 July 2017

Architectural heritage

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

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

LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_2667 (ZIP).

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 Trostan with five sales or more. The sales of the area are on the page of Co. Monaghan.

Name

Trostan · Trostán

Area

460,144 m² (46.01 ha, 113.7 acres)

Civil parish

Magheross, and its townlands

Barony

Farney

Electoral division

Ballymackney, the unit of the census

Census 2022

Ballymackney electoral division: 1,001 people in 335 households; 92% of households own their home; 27% of homes were built since 2001; 11% of dwellings stood vacant on census night, and 1% were holiday homes.

Neighbouring townlands

Annacroff, Coolderry, Corcrin, Drummond Otra, Lisanisk, Monaltyduff

Placenames

Trostan 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.