Access 183,894 building permits issued in Montgomery County, Maryland through a single REST API. Refreshed daily from the official Montgomery County open data portal and normalized into a consistent schema.
Most common permit types issued in the last year.
The 10 most recent permits issued in Montgomery County, Maryland. Full dataset available via REST API.
| Issued | Permit # | Address | Category | Description |
|---|---|---|---|---|
| 2026-04-30 | 1155128 | — | Foundation | Underpinning Foundation w/ (3) Helical Piers & Retrofit Bracket |
| 2026-04-30 | 1155533 | — | Other | Construct an 18' x 14' deck,New Deck |
| 2026-04-30 | 1154578 | — | Renovation | Construct new 338 sf rear screened porch over existing rear slate patio. Repair ad... |
| 2026-04-30 | 1155105 | — | Pool | install in ground, gunite swimming pool & spa 18' x 38' irregular ... |
| 2026-04-30 | 1154263 | — | Addition | Deck addition. Add a new deck and stairs to the back of the home. The deck will ha... |
| 2026-04-30 | 1154696 | — | Renovation | Customer Wants To Use ePlans,Existing damaged wood railings replacement on existin... |
| 2026-04-30 | 1153967 | — | Interior remodel | SFD/ ALTERATIONS TO EXISTING DWELLING TO INCLUDE: SECOND FLOOR MASTER SUITE REMODE... |
| 2026-04-30 | 1120469 | — | Other | To build a front porch that will integrate to the front entrance of the main house. |
| 2026-04-30 | 1134217 | — | Other | Convert existing patio to an open mudroom. Extend master bedroom. |
| 2026-04-30 | 1155659 | — | Solar | Customer Wants To Use ePlans,Temporary removal and reinstallation of 27 existing r... |
Query Montgomery County, Maryland permits with a single HTTP request. Returns JSON with address, category, status, dates, and full description.
# Search all Montgomery County permits issued this month curl -H "X-API-Key: YOUR_KEY" \ "https://api.permit-stack.com/v1/permits/search?city=Montgomery%20County&state=MD&issued_after=2026-04-01"
Related coverage in Maryland and nationwide.
We ingest data directly from the official Montgomery County open data portal (Tyler Data & Insights (Socrata)) daily. This is the same source used by the city's own public dashboards, normalized into a consistent JSON schema across our U.S. jurisdictions.
Our automated ingestion runs daily at 03:00 UTC. The latest permit in our database for Montgomery County, Maryland was issued on April 30, 2026. Permit backlogs on the city side may mean some permits take a few days to appear.
Yes — our free tier includes 1,000 requests per day, enough to search and filter Montgomery County permits interactively. Sign up for a free API key to get started.
Yes. Paid plans support CSV export and periodic webhooks for changed permits.
The median time from permit filing to issuance in Montgomery County, Maryland is 20 days, based on permits issued in the last 12 months. Smaller permit types (residential alteration, electrical) typically issue faster; new construction and large additions usually take longer.
Free tier covers 1,000 requests per day. No credit card required.
Get Free API Key