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Building permits in 21152, Baltimore County

Data through September 2026 · updated 20 Oct 2026

954 building permits were issued in ZIP code 21152 by Baltimore County Permits, Approvals and Inspections, October 2024 through September 2026: 1% of the 72,744 in Baltimore County, the 23rd busiest ZIP code. Plumbing permits lead with 305. 573 permits in the last 12 months (Oct 2025–Sep 2026), 50% more than the 381 in the 12 months before. Permits from a city that runs its own permit office are not counted.

954permits in 21152
573last 12 months
86%for homes
Sep 2026records through

Permits in 21152 by kind of work

Share here is the part of the 954 permits in 21152; countywide is the same for all of Baltimore County.

Kind of workPermitsShare hereCountywide
Plumbing30532%31%
Electrical30332%35%
Garages, sheds & shade structures556%4%
New homes414%3%
HVAC283%7%
Solar212%2%
Remodels & repairs202%2%
Additions131%1%
Fences & walls111%4%
Pools & spas6under 1%under 1%
Demolition6under 1%under 1%
Roofing1under 1%under 1%
Other14415%9%

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Permits in 21152 by year

Permits issued in each calendar year of the window.

YearMonthsPermitsPer year
2024 (from October)3114456
202512366366
2026 (through September)9474632

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How permits in 21152 finish

Permits issued Oct 2024–Sep 2025, at least 12 months before the file ends.

Measure21152Countywide
Permits issued Oct 2024–Sep 202538136,255
Finished51.2%52.5%
Expired0.0%0.4%

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How these numbers are made

Source: Baltimore County GIS, Active Development map service: Cityworks Permits, Electrical Permits, Plumbing Permits and Gas Permits layers, read 20 Oct 2026. We count permits issued October 2024 through September 2026; denied and withdrawn permits are left out.

Building, electrical, plumbing and gas permits issued by Baltimore County Permits, Approvals and Inspections, which covers the whole county (it has no incorporated towns): Towson, Catonsville, Dundalk, Essex, Parkville, Pikesville, Owings Mills, Randallstown, Perry Hall, White Marsh and the rest. Baltimore City is a separate jurisdiction with its own permit office and is not in this file; the few trade permits whose ZIP code lies wholly inside Baltimore City are left out. Grading, storm-water and use-and-occupancy permits are not counted.

  • The county's files name no contractor, so there are no contractor lists, rankings or firm pages for Baltimore County.
  • The files carry no final inspection or completion date, so we show no time to final.
  • Electrical, plumbing and gas permits are marked complete when the county signs them off. Building permits in the county's current system are rarely marked closed, so building work (new homes, decks, fences, additions, remodels, commercial work) almost always shows as open and the finished share mostly reflects trade permits.
  • The estimated cost is filled on building permits only; trade permits carry no job value.
  • Gas permits for furnaces and boilers count as HVAC; gas permits for water heaters, ranges, dryers and gas lines count as plumbing. The county publishes no separate mechanical permits, so heat pumps and air conditioners appear under electrical.
  • Solar counts come from solar building permits; the matching electrical permit for the same job counts under electrical. Fire-sprinkler permits count as other.

Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →

Cite this page

Free to reuse with attribution (CC BY 4.0). Please credit Contractor Records and link to this page. Suggested citation:

Contractor Records, "Building permits in 21152, Baltimore County", https://contractorrecords.com/baltimore-county/zip/21152, data through September 2026, from Baltimore County Permits, Approvals and Inspections building-permit records.

Link to a table: By kind of work · By year · How permits finish.

Download the tables (CSV): Permits in 21152 by kind of work · Permits in 21152 by year · Permits in 21152: finished and days to final.

Common questions

  • How many building permits were issued in 21152?954 permits issued by the county in ZIP code 21152, October 2024 through September 2026: 305 plumbing, 303 electrical, 55 garages, sheds & shade structures. 573 were in the last 12 months.
  • What is built most in 21152?Plumbing: 305 of the 954 permits (32%), against 31% countywide.
  • Who did the work in 21152?The county's file doesn't name contractors, so we can't say. Ask a contractor for the permit numbers of past jobs and check them with the county.