SAMPLE US Property API (155M+ Records): Real-Time Property Details, Tax & Zoning Intelligence

Built for Developers. Optimized for Speed.

In the fast-moving PropTech landscape, static data files aren't enough. You need intelligence that lives and breathes with your application. BatchData’s Property API serves as the real-time nervous system for leading real estate platforms, delivering a 360-degree view of over 155 million properties with sub-second latency.

Forget parsing messy county exports or managing massive local databases. Our RESTful API handles the heavy lifting—ingesting, standardizing, and serving granular property attributes on demand. Whether you are populating a "Property Detail Page" (PDP) instantly as a user searches, or triggering automated underwriting logic, our endpoints provide the structured, reliable payload your code needs.

The Developer Experience Advantage:

Uniform Schema: We normalize fragmented data from 3,100+ counties into a single, predictable JSON structure. No more writing custom parsers for "Cook County vs. Maricopa County."

High-Performance Infrastructure: Architected for scale, our API supports high-concurrency requests, ensuring your application remains snappy even during traffic spikes.

Flexible Querying: Look up properties by Address, APN (Assessor Parcel Number), or Geocoordinates (Lat/Long), or use our "Search" endpoints to filter millions of records dynamically.

Key API Statistics
Coverage: 155,000,000+ Properties (Nationwide)

Latency: Millisecond-level response times for single lookups

Uptime: 99.9% Availability SLA

Format: Standardized JSON Responses

Documentation: Interactive Swagger/OpenAPI Specs

Detailed Data Schema (JSON Payload)
A single API call returns a comprehensive "Property Object" containing 200+ fields organized for easy consumption:

1. Structure & Building Object

building.livingAreaSqFt: Verified interior square footage.

building.yearBuilt: Original construction year.

building.roofType: Standardized roof cover (e.g., "ASPHALT SHINGLE").

building.foundation: Foundation details (e.g., "SLAB", "BASEMENT").

building.rooms: Nested object with bedrooms, bathrooms (full/half), and total room counts.

2. Land & Zoning Object

lot.lotSizeAcres: Precise lot acreage.

lot.zoningCode: Standardized zoning classification (e.g., "R1" - Single Family).

lot.landUse: Universal land use description (e.g., "RESIDENTIAL", "VACANT COMMERCIAL").

lot.geometry: Frontage and depth measurements.

3. Tax & Assessment Object

assessment.totalValue: Current total assessed value.

assessment.taxAmount: Most recent annual tax bill.

assessment.history: Array of historical assessment objects for trend analysis.

tax.exemptions: Flags for Homestead or Veteran exemptions.

4. Location & Geo Object

address.location: Rooftop-level Latitude and Longitude.

address.standardized: CASS-certified USPS address components.

geo.censusTract: FIPS code and census block group for demographic mapping.

Primary API Endpoints & Capabilities
1. Property Detail Lookup (GET /property/details)

Function: The workhorse endpoint. Pass an address or APN and receive the full "Property Object."

Use Case: Instantly populating a real estate listing page or filling a CRM form when a user types an address.

2. Property Search & Filtering (POST /property/search)

Function: Query the database using complex criteria.

Example Payload: {"city": "Austin", "min_sqft": 2000, "has_pool": true, "zoning": "RESIDENTIAL"}

Use Case: Powering the search bar on an investing platform or generating "Buy Box" lead lists programmatically.

3. Bulk Enrichment (POST /property/bulk)

Function: High-throughput endpoint for enriching lists. Send up to 1,000 addresses in a single batch request.

Use Case: Updating a client's entire portfolio or backfilling missing data in your CRM overnight.

4. Comparable Sales (GET /property/comps)

Function: Algorithmically retrieve similar sold properties based on proximity and features.

Use Case: Generating instant "CMA" (Comparative Market Analysis) reports or supporting AVM (Automated Valuation Model) logic.

Integration Use Cases
1. PropTech Platforms & Marketplaces

Dynamic Content: Stop storing stale data. Call our API in real-time to display the most current tax assessments and building specs whenever a user views a property.

Search Experience: Build advanced filters (e.g., "Show me homes with > 0.5 acres and a basement") that query our normalized backend directly.

2. Insurance & Risk Modeling

Instant Quoting: Reduce application friction by pre-filling form fields (Year Built, Roof Material, Square Footage) the moment a user enters their address.

Underwriting Logic: Feed API response data directly into your risk algorithms to flag properties with specific characteristics (e.g., "Wood Frame" in a fire zone) automatically.

3. Real Estate CRM & Workflow Automation

Lead Ingestion: When a new lead enters your CRM (via web form or PPC), trigger a webhook to hit our API and instantly append missing details like "Bed/Bath count" and "Estimated Equity" before the sales rep even calls.

4. Solar & Home Services Apps

Remote Feasibility: Use the API's lot.geometry and building.roofType data combined with address.location (Lat/Long) to estimate solar potential without a site visit.

Delivery Methods
REST API: Secure, token-based authentication (Bearer). Comprehensive error handling and rate limit headers included.

Webhooks: For asynchronous batch processing, receive a callback when your large job is complete.

SDK Support: Python and Node.js examples available in documentation to speed up integration.

About the Provider
BatchData is the modern data engine powering the next generation of PropTech. We are an API-first company, meaning our infrastructure is built to support your application's uptime and scalability needs.

While legacy providers offer clunky FTP drops or slow SOAP interfaces, BatchData provides a modern, developer-centric experience. We transform complex public records into a clean, queryable API that turns 30-minute research tasks into 30-millisecond code executions