OPDA Knowledge base
Logical tier property

Legal Estate

opda:LegalEstate

Legal Estate

Summary

Legal rights-bundle vested in a Property. [Substance Kind; UFO Substance Kind / DOLCE NonPhysicalEndurant — Searle 1995 legal-institutional object]. Identity criterion is rights-bundle persistence: same individual through grant, transfer, registration, and discharge events; distinguishable from coexisting RegisteredTitle and physical Property by extent of property rights. Hard cases per ODR-0005 §3b: tenure change, lease grant, lease termination, commonhold conversion, first-registration of pre-existing common-law estate. Concept tier →

Attributes

AttributeTypeCardinalityRequiredIdentity-bearingDescription
tenureKindEnumScheme:TenureKindScheme0..1NYTenure classification (Freehold / Leasehold / Commonhold) — surface IC element
ownershipTypeEnumScheme:OwnershipTypeScheme0..1NNOwnership structure (Freehold / Leasehold / Commonhold / Other)
isGroundRentPayableEnumScheme:YesNoScheme0..1NNYes/No: is ground rent payable on the Leasehold?
isSharedOwnershipEnumScheme:YesNoScheme0..1NNYes/No: is this a shared-ownership lease? Applies to Leasehold ownership
sellerContributesToServiceChargeEnumScheme:YesNoScheme0..1NNYes/No: does the Seller contribute to a service charge? Applies to Leasehold / Managed Freehold / Commonhold

Relationships

PredicateTarget entityCardinalityInverseDescription
leaseTermLeaseTerm0..1LegalEstate → LeaseTerm join (Leasehold tenure only). The LeaseTerm bounds the leasehold tenure as an OWL-Time ProperInterval

Inbound predicates: RegisteredTitle.recordsEstate; LeaseExtensionEvent mutates the LeaseTerm via PROV-O derivation; Transaction.concerns references the LegalEstate.

Identity key

Identity key = rights-bundle persistence (the typed surface is tenureKind + the full rights-bundle IC enforced via the registered-title binding through RegisteredTitle.recordsEstate). Identity persists through grant / transfer / registration / discharge — these are mutations of the rights-bundle rather than identity-collapsing events. Cross-reference: Concept-tier LegalEstate IC narrative.

Constraints

  • tenureKind MUST be a single string value when present (Violation, LegalEstateIdentityKeyShape)
  • LegalEstate identity persists through LeaseExtensionEvent per ODR-0005 §3b Rule 1: the rights-bundle is modified, not dissolved

Derived attributes

None at this tier — the LeaseTerm succession status is materialised on LeaseTerm, not on the parent LegalEstate.

ER diagram

%%{init: {"theme": "base", "themeVariables": {"primaryColor": "#E1BEE7", "primaryTextColor": "#4A148C", "primaryBorderColor": "#6A1B9A", "lineColor": "#37474F"}}}%% erDiagram accTitle: LegalEstate — Entity-Relationship Diagram accDescr: Direct-neighbour view of LegalEstate — recorded by RegisteredTitle, vested in Property, bounded by optional LeaseTerm, mutated by LeaseExtensionEvent, concerned by Transaction. LegalEstate }o--|| Property : "identifiesSameProperty" LegalEstate ||--o| LeaseTerm : "leaseTerm" RegisteredTitle ||--|| LegalEstate : "recordsEstate" LeaseExtensionEvent }o--|| LegalEstate : "extends" Transaction }o--o{ LegalEstate : "concerns"

Lifecycle state-transition diagram

LegalEstate identity persists through grant / transfer / registration / discharge hard cases per ODR-0005 §3b. Identity is the rights-bundle; lifecycle events mutate the bundle but do not collapse identity (Rule 1: identity PERSISTS through LeaseExtensionEvent).

%%{init: {"theme": "base", "themeVariables": {"primaryColor": "#E1BEE7", "primaryTextColor": "#4A148C", "primaryBorderColor": "#6A1B9A", "lineColor": "#37474F"}}}%% stateDiagram-v2 accTitle: LegalEstate — Lifecycle State-Transition Diagram accDescr: LegalEstate identity persists through grant, transfer, registration, lease extension, and discharge. Tenure change, lease grant, lease termination, and commonhold conversion are mutations of the rights-bundle, not identity-collapsing events. [*] --> Granted : grant of rights-bundle Granted --> Registered : first registration Registered --> Registered : transfer
(rights-bundle persists) Registered --> Registered : LeaseExtensionEvent
(LeaseTerm successor minted) Registered --> Registered : tenure change
(mutation, not collapse) Registered --> Registered : commonhold conversion Registered --> Discharged : discharge
(rights-bundle dissolved) Discharged --> [*]

Source ODR + ADR

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