Prince George's County (MD) Permits

The largest county permit record in Maryland - the full Prince George's County permit archive, 2013 to the present. One query API over what was permitted, by which agency, at which address, and for how much.

Data

Prince George's County, Maryland open data (public permit register). ~461,000 permits, 2013-present - construction, health and site/road permits.

Each record is a permit case with:

• Permit category - Building Permit (~419k) / Health Permit (~32k) / Site Road Permit (~10k)
• Agency - DPIE (permits & inspections) issues the overwhelming majority; HEALTH / DER / DPW&T the rest
• DPIE type code - the agency's own classification (SGU / TGU / DPIE ER / RW / FIRW ...) plus readable type on health permits
• Case number, project name, address, city, ZIP
• Case year and issue date
• Expected construction cost where the county recorded one - most building permits carry a value, and the register includes million-dollar projects

A note on the archive's shape, stated plainly: coverage is dense from 2013 through 2023 (tens of thousands of permits a year), then thins sharply - 2024 ~6,500, 2025 ~1,200. This register is the deep historical record of PG County construction - ideal for property history, case lookups and archive research - not a real-time feed of new permits. Query it for what it is.

Low cost

From $0.0003 per record.

County permit data arrives as a text-heavy flat table where the construction cost sits in a text column and most years carry tens of thousands of cases - fine for the county's own portal, painful for anyone who wants to actually cut it by type, place or value. We made the archive directly queryable: category / agency / permitType / caseName / address / city / zip / year windows / issue-date windows all filter before a record returns, and groupBy (counts by category / agency / type / city / year) comes back as clean server counts. Cost-range queries sweep whole years and return only cases whose recorded cost lands in range. You query a permit archive that behaves like a database; the cleanup stays on our side.

Every record is one flat JSON object - no PDFs, no portal pagination, no scraping.

Use cases

• Property / project history - every permit at an address or for a case number, with cost and year
• County construction analysis - aggregate what was built, where and by which agency across the 2013-2023 archive
• Diligence - confirm whether a project was permitted, when, and its recorded value

Inputs

Field	What it does
permitNumber	exact case lookup
permitCategory / agency / permitType	filter by kind of permit
caseName / address / city / zip	find by project / place
yearFrom / yearTo	case-year window (archive density 2013-2023)
issuedFrom / issuedTo	issue-date window
minCost / maxCost	recorded-cost range (sweeps whole years; bounded)
aggregate + groupBy	counts by category / agency / type / city / year

Output fields

permitNumber / permitCategory / countyAgency / permitType / permitCaseYear / caseName / address / city / zip / issuanceDate / cost / location.

Honesty note: the county records expected construction cost on only ~46% of building permits (health and site/road permits carry none). The cost field is returned only where the county recorded it, never filled in.

Source: Prince George's County open data (permit register, public records).