Proof of concept.This is an unofficial demo built by Datopian from Longford County Council's public data. The official portal is countycouncil-longford.hub.arcgis.com. Questions or feedback: hello@datopian.com

A PortalJS proof of concept · data from Longford County Council's ArcGIS Hub

Record of Protected Structures

Adopted Record of Protected Structure

Records
531
Formats
5
Last updated
Jun 23, 2026

Download & API

Adopted Record of Protected Structure (CSV)csv
Spreadsheet — attributes, with coordinates for point layers
Download
Adopted Record of Protected Structure (GeoJSON)geojson
GeoJSON — for web maps and GIS tools
Download
Adopted Record of Protected Structure (GeoParquet)geoparquet
Columnar — query with DuckDB / SQL
Download
Adopted Record of Protected Structure (map tiles)pmtiles
Vector tiles — embed in a map
Download
Live ArcGIS layer (source)arcgis
Download

Rendered from PMTiles, queried in-browser from GeoParquet — no server. How this works

Schema

FieldTypeValues
RPS_Nointeger1 to 531
NIAH_NMS_Reg_Nostring
Structurestring
Descriptionstring
Characteristics_of_Special_Intereststring
Address_string
Townstring
Townlandstring
Linkstring
OS_Map_Ref_6inchstring
ING_Eastingnumber200,030 to 238,316
ITM_Xnumber599,981 to 638,259
ITM_Ynumber754,989 to 799,022
Notesstring
ING_Northingnumber254,967 to 299,009
NIAH_Ratingstring3 values: Regional (431), Local (35), National (13)