Data Sources

Verified Government Data, 100% Transparent

Every data point in a SiteIntel report is cited and traceable to its government source. No black boxes. No proprietary algorithms.

Our Data Philosophy

Source Transparency

Every report includes clickable citations linking directly to government APIs and datasets.

Real-Time Updates

We query APIs in real-time, so you always get the latest data—not stale snapshots.

Auditability

Lenders and investors can verify every claim by following our citations to source data.

15+ Verified Data Sources

Flood & Environmental Risk

FEMA OpenFEMA API

Quarterly

Flood zones, base flood elevation (BFE), flood maps, and NFIP data.

EPA ECHO

Monthly

Environmental compliance, hazardous waste sites, and air quality violations.

USGS

Continuous

Elevation data, topographic maps, and watershed boundaries.

National Wetlands Inventory

Biannually

Wetlands mapping and jurisdictional determinations.

Zoning & Land Use

County GIS Layers

As published

Zoning districts, permitted uses, setbacks, FAR, height limits.

Municipal Planning Departments

Real-time

Overlay districts, special use permits, variance history.

ArcGIS Online

Weekly

Parcel boundaries, land use classifications, future land use maps.

Infrastructure & Utilities

TxDOT

Annually

Traffic counts, roadway classifications, planned improvements.

Local Utility Providers

As available

Water, sewer, electric, and broadband availability and capacity.

Texas Railroad Commission

Monthly

Oil & gas infrastructure, pipeline locations.

Demographics & Market Data

Census ACS (via BigQuery)

Annually

83+ variables: income, population, housing, employment, spending.

Texas Comptroller

Monthly

Mixed beverage receipts, sales tax data, economic indicators.

County Appraisal Districts

Annually

Property values, ownership, tax history, sales comparables.

Geospatial & Boundaries

TIGER/Line Shapefiles

Annually

Census boundaries, roads, water features.

OpenStreetMap

Continuous

Points of interest, amenities, and building footprints.

County CAD Systems

Real-time

Legal parcel boundaries and property ownership.

Our Methodology

1. Address Validation

We validate addresses against USPS and county CAD systems to ensure accurate geocoding.

2. Parallel API Queries

Our Supabase Edge Functions query 15+ APIs in parallel, reducing latency to under 60 seconds.

3. Geospatial Analysis

PostGIS calculates spatial relationships, drive-time polygons, and proximity to infrastructure.

4. Data Cross-Validation

AI cross-references data from multiple sources to flag inconsistencies and ensure accuracy.

5. Citation Generation

Every data point is tagged with its source URL, query timestamp, and data freshness indicator.

6. Narrative Synthesis

GPT-4 transforms raw data into lender-ready prose, explaining risks and opportunities.

How Fresh Is the Data?

Data freshness varies by source. We display the "last updated" timestamp for each dataset on every report. Critical data (flood zones, zoning) is re-queried in real-time on every report run.

Real-Time

Zoning, CAD, GIS layers

Daily/Weekly

Utilities, OSM, ArcGIS

Monthly/Quarterly

FEMA, EPA, Census

See Our Data in Action

View a sample report to see how we cite and present government data in a lender-ready format.

View Sample Report