Premises & Spatial Unit
Persistent bounded interior-space identity temporal containment geometry area evidence use designations and split or merge lineage
Bundle → Layer → Finding → Questions Incomplete
3 bundles · 6 layers · 0 findings · 0 questions
delineation How units are bounded in space
boundaries
surveyed or declared unit boundaries in 2D or 3D
commonParts
shared spaces and facilities serving several units
use What units are for and who is in them
useClass
classification of permitted and actual use
occupancy
who occupies which unit over which period
aggregation How units combine into larger wholes
grouping
whole-floor lets, portfolio lots and other unit groups
scheme
condominium and co-ownership scheme membership
Note: Legacy card: layers named, findings and questions never written.
Classifiers Filled
- Family
- World Models
- Category
- Physical world and living systems
- Entry kind
- standalone-mm
- Navigation path
- NAV.PHY.BLT.UNT
- Domain
- PHY.BLT.UNT
- Industry
- Cross-industry
- Tags
- premisesspatialunitphy.blt.unt
- Also called
- U2
What it is Derived, awaiting review
This meta-model describes the units inside structures: apartments, offices, shops and rooms, their boundaries, the common parts they share, their use class, and who occupies them over time.
Note: First sentence of the legacy card introduction.
Why it exists Filled
Persistent bounded interior-space identity temporal containment geometry area evidence use designations and split or merge lineage
Distinguishing features Derived, awaiting review
- It is its own model because units are delineated, classified, transacted and occupied independently of the building shell (U1) that contains them and of the parcel (P2) beneath them.
What robots and AI may and may not do Missing, in the backlog
Not described yet. This gap is in the card backlog.
Moral aspects Derived, awaiting review
- occupancyDisclosureContract: consent-based disclosure of occupancy spells to a named relying party
Owners Filled
Steward
The owner archetype is the unit owner per S1 for each premise; scheme-level data is stewarded jointly through scheme membership.
Links to other meta-models Filled
references
- world.buildingStructure - every premise sits inside a shell modelled there
- world.landParcelCadastre - condominium schemes anchor unit tenure to the underlying parcel; legal space semantics align with the cadastre
- world.addressLocationReferencing - sub-addresses and unit numbering resolve there
- world.utilityServicePoint - service points serve premises; supply and metering context lives in U5
- world.person - occupants named in occupancy spells
- world.organization - organizational occupants and scheme bodies
parent
- WM-BLT-001
contains
- WM-BLT-002
requires
- vr.wm-blt-004
- vr.wm-blt-005
- vr.wm-plc-006
What else AI and robots need to interact with it Incomplete
Identity and identifiers required Missing, in the backlog
Not described yet. This gap is in the card backlog.
Direct properties not applicable Not applicable
Not applicable
Institutional or informational subject: no invented physical properties.
Recognition optional Missing, in the backlog
Not described yet. This gap is in the card backlog.
Capabilities and actions required Derived, awaiting review
- premiseDelineated: a new unit was carved out and its boundary registered
- boundaryAmended: a unit boundary was corrected or redrawn
- useClassChanged: the unit's use classification changed (for example office to residential)
- occupancyStarted: a party took up occupation of a premise
- occupancyEnded: an occupancy spell closed
- premisesMerged: two or more units were combined into one
- premisesSplit: one unit was divided into several
Legacy events listed as state transitions.
Hazards and failure modes optional Missing, in the backlog
Not described yet. This gap is in the card backlog.
Standards and interfaces required Derived, awaiting review
- valuationAccessContract: owner-granted access for an assessor to boundaries, areas and use class
- occupancyDisclosureContract: consent-based disclosure of occupancy spells to a named relying party
- schemeDataExchange: exchange of scheme membership and share quota data among scheme members
- floorPlanProjection: boundaries and common parts per storey; omits occupants and tenure
- lettingProjection: use class, floor area and availability; omits owner identity
- occupancyStatisticsProjection: aggregated occupancy rates by area and use class; omits all identities
Context of use required Filled
- All access, including occupancy disclosure, is granted by the owner through S2, with disclosures auditable via S4.
Sources Missing, in the backlog
Not described yet. This gap is in the card backlog.
Open questions
- Superseded by a researched world model? Map this legacy card to its successor or retire it.
Machine files
Provenance
legacy MMAS card (world-models v0.2) · legacy
Built from: models/world-u2-premises-and-spatial-unit/spec.yaml, models/docs/built-environment/U2-premises-and-spatial-unit.md