OPDA Knowledge base
Schema Page 38e7c Generated 2026-05-17 DAMA · Data Modeling & Design

Leasehold · Building Safety Act

9 leaves 100.0% Declaration 0.0% Evidence 0.0% Derivation 9 in overlays 0 with worked example

Entity relationships

--- config: layout: elk elk: direction: DOWN nodePlacementStrategy: BRANDES_KOEPF mergeEdges: false --- erDiagram Transaction ||--o| PropertyPack : "propertyPack" PropertyPack ||--o| Ownership : "ownership" Ownership ||--o{ OwnershipsToBeTransferred : "ownershipsToBeTransferred" OwnershipsToBeTransferred ||--o| LeaseholdInformation : "leaseholdInformation" LeaseholdInformation ||--o| BuildingSafetyAct : "buildingSafetyAct" BuildingSafetyAct ||--o| DeedOfCertificateServed : "deedOfCertificateServed" BuildingSafetyAct ||--o| LandlordsCertificateServed : "landlordsCertificateServed" Transaction { } PropertyPack { } Ownership { } OwnershipsToBeTransferred { } LeaseholdInformation { } BuildingSafetyAct { string isLeaseQualifying "Is the lease of the property a qualifying lease?" string landlordNotifiedOfSale "Has the freeholder / landlord been notified of the intent…" } DeedOfCertificateServed { string attachments "Leaseholder Deed of Certificate." string sellerCompletedDeedOfCertificate "Did the seller (the current leaseholder) complete the dee…" string yesNoNotApplicable "yesNoNotApplicable" } LandlordsCertificateServed { string attachments "Landlord's Certificate." string yesNoNotApplicable "yesNoNotApplicable" }
Physical model — every JSON object owned by this page is a node, every scalar field a row. 8 objects, 9 scalar fields. Generated from the schema walk; click any node to jump to its table.

Object model

Building Safety Act

Transaction

transaction (root)

No scalar fields on this object — pure container.

Property Pack

propertyPack

No scalar fields on this object — pure container.

Ownership

propertyPack.ownership

No scalar fields on this object — pure container.

Ownerships To Be Transferred[]

propertyPack.ownership.ownershipsToBeTransferred[]

No scalar fields on this object — pure container.

Leasehold Information

propertyPack.ownership.ownershipsToBeTransferred[].leaseholdInformation

No scalar fields on this object — pure container.

Building Safety Act

propertyPack.ownership.ownershipsToBeTransferred[].leaseholdInformation.buildingSafetyAct
Title Description Type Kind Field Required Overlays Affordance
Is the lease of the property a qualifying lease? Is the lease of the property a qualifying lease? string Declaration isLeaseQualifying —
Law Society Leasehold Information Form (TA7)
—
Has the freeholder / landlord been notified of the intention to sell? Has the freeholder / landlord been notified of the intention to sell? string Declaration landlordNotifiedOfSale —
Law Society Leasehold Information Form (TA7)
—

Deed Of Certificate Served

propertyPack.ownership.ownershipsToBeTransferred[].leaseholdInformation.buildingSafetyAct.deedOfCertificateServed
Title Description Type Kind Field Required Overlays Affordance
Leaseholder Deed of Certificate. — string Declaration attachments —
Leasehold Property Enquiries Form (LPE1)
Law Society Leasehold Information Form (TA7)
—
Did the seller (the current leaseholder) complete the deed of certificate or was it completed by a previous leaseholder? Did the seller (the current leaseholder) complete the deed of certificate or was it completed by a previous leaseholder? string Declaration sellerCompletedDeedOfCertificate —
Law Society Leasehold Information Form (TA7)
—
yesNoNotApplicable — string Declaration yesNoNotApplicable —
Leasehold Property Enquiries Form (LPE1)
Law Society Leasehold Information Form (TA7)
—
yesNoNotApplicable — string Declaration yesNoNotApplicable —
Leasehold Property Enquiries Form (LPE1)
Law Society Leasehold Information Form (TA7)
—

Landlords Certificate Served

propertyPack.ownership.ownershipsToBeTransferred[].leaseholdInformation.buildingSafetyAct.landlordsCertificateServed
Title Description Type Kind Field Required Overlays Affordance
Landlord's Certificate. — string Declaration attachments —
Leasehold Property Enquiries Form (LPE1)
Law Society Leasehold Information Form (TA7)
—
yesNoNotApplicable — string Declaration yesNoNotApplicable —
Leasehold Property Enquiries Form (LPE1)
Law Society Leasehold Information Form (TA7)
—
yesNoNotApplicable — string Declaration yesNoNotApplicable —
Leasehold Property Enquiries Form (LPE1)
Law Society Leasehold Information Form (TA7)
—

Comments

Loading comments…