OGC Building Blocks Meta-Registry Land parcels
ogc
This repository contains a JSON schema model for land parcels, semantically annotated and aligned with LADM conceptual model.
These schemas use a generalised 3D topology model to provide explicit definition of parcels required for survey record keeping.
The topology model supports transformations to well known geometry formats which may be used to visualise and validated geometry representations of Parcel objects in 2 or 3D.
Last crawled
9/1/2026, 6:25:06 AM
Crawl status
ok
Modified
2026-08-26T00:40:41.251205
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Building Blocks (7)
Example Vocab: Parcel Purposeogc.ladm.land-parcels.codelists.examples.parcel-purpose
An example vocab - used in examples for parcel purpose codelist
model
under-development
Example Vocab: Parcel Typesogc.ladm.land-parcels.codelists.examples.parcel-type
An example vocab - used in examples for parcel type codelist
model
under-development
Land Parcels Ontologyogc.ladm.land-parcels.ontology
Terms and definitions for the Land Parcels model. This is aligned with LADM semantics and terminology and could be evolved or mapped to an authoritative LADM ontology component as required/
model
under-development
Spatial Representation Definitionogc.ladm.land-parcels.spatialRepresentationDefinition
Generic, reusable properties that record how a 2D feature's geometry is being interpreted with respect to the vertical dimension: whether the representation is a plain 2D footprint, has contextual z-values, is bounded by a reference surface, carries a legally defined vertical boundary, or has a derived 3D solid — and how confidently that interpretation can be computed. Not specific to parcels; reusable by any 2D feature type gaining a 2.5D or 3D representation.
schema
under-development
Parcel Spatial Representation Definitionogc.ladm.land-parcels.parcelSpatialRepresentationDefinition
The WA cadastral parcel-specific extension of the generic spatial representation definition pattern. Adds the jurisdictional source basis (rule type, source authority type, and verbatim source statement) needed to trace a parcel's vertical boundary back to a title, plan, statute, Crown Grant, strata statement, or other approved jurisdictional rule.
schema
under-development
Land Parcelogc.ladm.land-parcels.parcel
A parcel of land, corresponds to LA_SpatialUnit from LADM (ISO 19162)
schema
under-development
Land Parcel Collectionogc.ladm.land-parcels.parcelCollection
corresponds to LA_SpatialUnitGroup from LADM (ISO 19162)
schema
under-development