Assessment
API Information
Version:v1.5.0
Region:US
Used for:Enriching property data with official valuation, tax, and ownership attributes from local assessment records.
Overview
The LightBox Assessment API delivers authoritative property-level data sourced directly from local tax assessors across the United States. This includes critical valuation fields (assessed, market, and taxable values), tax history, exemptions, structural characteristics, and identifying parcel metadata such as APNs and FIPS codes. The API also links seamlessly with LightBox Parcel IDs and supports spatial queries, making it a powerful asset for financial analysis, underwriting, and CRE investment workflows.
Key Capabilities
- ✓Query assessment records using geometry and custom buffer zones
- ✓Retrieve data by LightBox Assessment ID or Parcel ID for direct linkage
- ✓Visualize data on mapping platforms like Mapbox, Google Maps, or Esri via Tile and BBox endpoints
- ✓Identify full owner portfolios by aggregating assessments tied to common ownership
Scope
Valuation Data
- Assessed Value
- Taxable Value
- Market Value
Tax Information
- Tax Rates
- Exemptions
- Tax History
Primary Structure
- Building Square Footage
- Number of Stories
- Construction Type
Identifying Information
- APN (Assessor’s Parcel Number)
- FIPS Code
- LightBox IDs
- Legal Description