Provenance

Every source behind the file, including the one that is not connected

A provenance table is only useful if it also records the gaps. 7 layers are live. 1 is not, and the product says so on the file rather than filling the space with a plausible number.

PropertyRiskIQ data sources, contributed fields, access type, refresh cadence and connection status
Layer	Provider	What it contributes	Access	Status
Parcel and structure	ATTOM Data Solutions	Year built Living area and lot size Bedroom and bath count Construction type Roof cover Pool and garage flags	Commercial licencePer lookup, against ATTOM's current record	Live
Valuation and ownership	ATTOM Data Solutions	Automated valuation Last sale price and date Full sale history Assessed value and tax amount	Commercial licencePer lookup	Live
Permit history	ATTOM Data Solutions	Permit type and description Filing date Job value Status	Commercial licencePer lookup	Live
Flood	FEMA National Flood Hazard Layer	FEMA flood zone and subtype Special Flood Hazard Area flag Static base flood elevation Vertical datum Map effective date FIRMette panel for high-hazard zones	Public datasetLive query against the published NFHL service	Live
Wildfire	USDA Forest Service Wildfire Hazard Potential (WHP 2020)	Wildfire hazard potential class, 1 to 5 Annual burn probability Mitigation notes matched to the hazard class	Public datasetLive query against the published WHP raster service	Live
Fire response	Google Places and Distance Matrix	Nearest responding stations within five miles Road distance to each Drive time to each	Commercial APIPer lookup	Live
Aerial imagery	Google Static Maps	Satellite view at neighbourhood, property and detail zoom Capture coordinates	Commercial APIPer lookup	Live
Crime and neighbourhood safety	Not connected	Violent and property crime rates Recent incident summary Comparison to state and national rates	Public datasetNot applicable yet	Not connected

Known gap

Crime and neighbourhood safety

The crime section of the property file currently shows modelled placeholder values, clearly badged as simulated in the product. No live crime feed is connected, and nothing in this layer should inform a decision until one is.

Consistent national crime data is genuinely hard to source. Municipal open-data portals cover a minority of jurisdictions, the FBI's aggregate reporting lags by more than a year, and the commercial grading products are proprietary. We would rather show an empty layer than a confident one we cannot cite.

Reading the table

What access type means for you

Public dataset

Published by a federal agency and queried live per coordinate. FEMA's National Flood Hazard Layer and the USDA Forest Service wildfire raster are both in this category. No licence is required and the underlying data is independently verifiable by anyone.

Commercial licence

Aggregated county and public record data licensed from ATTOM Data Solutions. Coverage and freshness follow their record, and their terms govern redistribution, which is why the sample file on this site uses invented values.

Commercial API

Metered per request. Google Places, Distance Matrix and Static Maps fall here, which is why lookups are deliberate rather than run speculatively across a whole book.

See how the sources come together on one file

View the sample file