US Building Permits API

API ID 14814

Daily-refreshed, cleaned building-permit data for major US cities — one normalized schema, business entities only, no personal data. Query by ZIP, permit type, segment, and date.

API Documentation

Endpoints

Request
Returns cleaned, normalized building-permit records as JSON. Filter by ZIP code, permit type, segment, and issue date, with a limit parameter. Requires the X-API-Key header.
Endpoint ID: 38401
GET https://zylalabs.com/api/14814/us+building+permits+api/38401/list+building+permits
INPUT PARAMETERS

List Building Permits — Endpoint Features

Object Description
zip Optional Filter results to a single ZIP code, for example 78701.
type Optional Filter by permit type, for example Building Permit.
segment Optional Filter by segment: Residential or Commercial.
since Optional Only include permits issued on or after this date, YYYY-MM-DD.
limit Optional Maximum number of results to return, up to 500.

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

zip
type
segment
since
limit
API EXAMPLE RESPONSE
JSON
{
    "count": 1,
    "results": [
        {
            "address": "200 W 6TH ST UNIT FLR21",
            "city": "Austin",
            "contractor_city": "Austin",
            "contractor_company": "Harvey-Cleary Builders",
            "contractor_state": "TX",
            "contractor_trade": "General Contractor",
            "contractor_zip": "78759",
            "description": "Remodel Existing Admin Shell for Multi-Tenant Corridor - Floor 21",
            "issue_date": "2026-11-08",
            "permit_number": "2026-131978 BP",
            "permit_type": "Building Permit",
            "segment": "Commercial",
            "sqft_new": 0,
            "sqft_remodel": 2902,
            "state": "TX",
            "work_class": "Remodel",
            "zip": "78701"
        }
    ]
}
List Building Permits — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14814/us+building+permits+api/38401/list+building+permits?zip=78701&type=Building Permit&segment=Commercial&since=2026-11-08&limit=50' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Returns aggregate statistics for the permit dataset: total record count, counts by permit type, counts by segment, and counts by issue date. Requires the X-API-Key header.
Endpoint ID: 38402
GET https://zylalabs.com/api/14814/us+building+permits+api/38402/permit+statistics
INPUT PARAMETERS

Free test requests remaining: 3 of 3.

This endpoint does not require any input parameters.

API EXAMPLE RESPONSE
JSON
{
    "total": 15,
    "by_type": {
        "Building Permit": 4,
        "Electrical Permit": 7,
        "Plumbing Permit": 4
    },
    "by_segment": {
        "Commercial": 3,
        "Residential": 12
    },
    "by_issue_date": {
        "2026-11-08": 6,
        "2026-11-07": 4,
        "2026-11-06": 5
    }
}
Permit Statistics — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14814/us+building+permits+api/38402/permit+statistics' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Returns the API health status, dataset name, total record count, and the date the sample data was retrieved. No authentication is required for this endpoint.
Endpoint ID: 38403
GET https://zylalabs.com/api/14814/us+building+permits+api/38403/api+health+check
INPUT PARAMETERS

Free test requests remaining: 3 of 3.

This endpoint does not require any input parameters.

API EXAMPLE RESPONSE
JSON
{
    "status": "ok",
    "dataset": "PermitDex — US Building Permits, Cleaned & Normalized (SAMPLE)",
    "records": 15,
    "retrieved": "2026-11-09"
}
API Health Check — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14814/us+building+permits+api/38403/api+health+check' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the US Building Permits API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

No long-term commitment. Upgrade, downgrade, or cancel anytime.

Starts at
$10,000/Year


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Overview

Daily-refreshed, cleaned building-permit data for major US cities — one normalized schema, business entities only, no personal data. Query by ZIP, permit type, segment, and date.

US Building Permits API FAQs

The GET List Building Permits endpoint returns detailed building permit records, including address, contractor information, permit type, and issue date. The GET Permit Statistics endpoint provides aggregate statistics, such as total record counts and counts by permit type and segment. The GET API Health Check endpoint returns the API's health status, dataset name, total record count, and retrieval date.

Key fields in the building permits response include address, city, contractor company, permit number, permit type, issue date, and square footage for new or remodeled spaces. In the statistics response, key fields include total counts, counts by permit type, segment, and issue date.

The response data is structured in JSON format. For building permits, it includes a "count" of records and a "results" array containing individual permit details. The statistics response includes total counts and categorized counts organized by type, segment, and issue date.

The GET List Building Permits endpoint accepts parameters such as ZIP code, permit type, segment, issue date, and a limit for the number of results. The GET Permit Statistics endpoint does not require additional parameters, as it provides aggregate data for the entire dataset.

The GET List Building Permits endpoint provides detailed permit records for specific queries, while the GET Permit Statistics endpoint offers aggregate data on permit counts by type, segment, and issue date. The GET API Health Check endpoint provides the API's operational status and dataset information.

Data accuracy is maintained through daily refreshes and cleaning processes that ensure the building permit records are up-to-date and normalized. The API focuses on business entities only, excluding personal data, which enhances data quality and relevance.

Typical use cases include urban planning, market analysis for construction trends, and compliance monitoring for contractors. Researchers and developers can use the data to analyze building activity patterns and assess the impact of regulations on construction.

Users can analyze the returned data to identify trends in building permits, compare activity across different regions or permit types, and generate reports. The structured JSON format allows for easy integration into applications or data analysis tools for further insights.

General FAQs

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