A set of newly audited property attributes is now returned in Property Search (/api/v1/property/search) and Property Lookup (/api/v1/property/lookup) responses wherever the underlying data is present. These attributes are response-only: they are returned in the response, but they are not new searchable filter criteria. There is no change to request cost.
Each attribute belongs to an existing dataset. A field only appears in a response when its dataset is requested in datasets and your account is entitled to that dataset. If a field is not present for a property, the data was not available for that record.
New attributes by dataset
Core dataset (core)
Field path | Type | What it means |
| integer | Total gross building area in square feet, counting all floors and enclosed space. Broader than living area. |
| integer | Building area adjusted by the assessor to a comparable basis (areas like garages, basements, and porches are weighted differently from primary living space). |
| boolean | Indicates the property is a mobile or manufactured home. |
| string (date) | The date the property was flagged as vacant. |
History (Deed) dataset (deed)
Field path | Type | What it means |
| string | The relationship between buyer and seller on the deed, for example an arms-length sale versus a related-party or intra-family transfer. |
| string | A code describing the nature of the recorded sale price, for example full consideration versus a nominal or partial amount. |
| number | The documentary transfer tax recorded on the deed. |
| boolean | Indicates the deed records more than one owner (the "et al" indicator). |
Mortgage and Open Liens dataset (mortgageliens)
These attributes are flags and riders on the first mortgage. They live inside the existing openLien.mortgages array, so you will find them on each mortgage entry rather than at the top level.
Field path | Type | What it means |
| boolean | An additional subordinate (junior) loan is present alongside the first mortgage. |
| boolean | The loan is an equity loan. |
| boolean | The loan is a home equity line of credit (HELOC). |
| boolean | A Planned Unit Development rider is attached to the mortgage. |
| boolean | A condominium rider is attached. |
| boolean | A multi-family (2 to 4 unit) rider is attached. |
| boolean | The mortgage carries an assumability rider, so the loan may be assumable. |
| boolean | The lender is a private party rather than an institution. |
| boolean | A second-home rider is attached. |
| boolean | The seller carried back financing (seller-financed). |
| boolean | A balloon-payment rider is attached. |
Contact Enrichment dataset (contact)
Field path | Type | What it means |
| boolean | The contact has opted out of postal marketing mail. |
| boolean | A landline phone is associated with the contact, as opposed to mobile only. |
Demographics dataset (demographic)
Field path | Type | What it means |
| string | The domain portion of the contact's email address, for example gmail.com. |
How these relate to existing fields
A few of the new fields are close in name to fields you may already use. Here is how they differ:
general.vacantDateis a date. The existinggeneral.vacantis a boolean that tells you whether a property is currently flagged vacant. Usegeneral.vacantfor "is it vacant" andgeneral.vacantDatefor "since when."building.grossBuildingAreaSquareFeetandbuilding.adjustedBuildingAreaSquareFeetare distinct from the existingbuilding.totalBuildingAreaSquareFeetandbuilding.livingAreaSquareFeet. Gross area is the broadest measure, adjusted area is the assessor's comparable basis, living area is heated and finished living space.general.mobileHomeis a single flag. It does not replace the existing property type and land use fields, it complements them.Available equity is not part of this release. The existing valuation field for estimated equity remains the source for equity figures.
Contact compliance fields
Two of the new contact fields carry compliance meaning. Treat them as inputs to your own compliance process, not as a guarantee that any given contact is legal to reach.
owner.mailingOptOut: when true, the contact has asked not to receive marketing mail. Honor the mailing opt out and suppress that contact from mail campaigns.owner.hasLandline: this distinguishes landline from mobile, which matters for TCPA rules that treat calls and texts to mobile numbers differently from landlines.
These sit alongside the existing phone compliance signals such as owner.dnc.tcpa and owner.phoneNumbers.dnc. Combine them with your internal suppression lists and consent records before any outreach.