Data through November 2025 · updated 19 Oct 2026
2,963 building permits were issued in ZIP code 21045 by Howard County Department of Inspections, Licenses and Permits, December 2023 through November 2025: 9% of the 33,773 in Howard County, the 5th busiest ZIP code. Plumbing permits lead with 1,110. 1,550 permits in the last 12 months on file (Dec 2024–Nov 2025), 10% more than the 1,413 in the 12 months before. Permits from a city that runs its own permit office are not counted.
Share here is the part of the 2,963 permits in 21045; countywide is the same for all of Howard County.
| Kind of work | Permits | Share here | Countywide |
|---|---|---|---|
| Plumbing | 1,110 | 37% | 29% |
| Electrical | 1,049 | 35% | 35% |
| HVAC | 210 | 7% | 9% |
| Garages, sheds & shade structures | 168 | 6% | 5% |
| Remodels & repairs | 159 | 5% | 4% |
| Solar | 152 | 5% | 6% |
| Additions | 64 | 2% | 3% |
| New homes | 12 | under 1% | 3% |
| Pools & spas | 4 | under 1% | under 1% |
| Other | 35 | 1% | 5% |
Permits issued in each calendar year of the window.
| Year | Months | Permits | Per year |
|---|---|---|---|
| 2023 (from December) | 1 | 89 | 1,068 |
| 2024 | 12 | 1,433 | 1,433 |
| 2025 (through November) | 11 | 1,441 | 1,572 |
Source: Howard County Open Data, Building, Electrical, Fire, Grading, Mechanical, Plumbing & Sign Permits (Socrata dataset kvz2-j5cj), read 19 Oct 2026. We count permits issued December 2023 through November 2025; denied and withdrawn permits are left out. The county's file has no permit status or final inspection date, so it can't say which permits were finished, so no finished share is shown.
Residential permits Howard County's Department of Inspections, Licenses and Permits issues countywide: new houses and townhouses, alterations, additions, decks and porches, solar, pools, demolition, and electrical, plumbing, HVAC and fire-sprinkler permits for homes. Howard County has no incorporated towns, so Columbia, Ellicott City, Elkridge, Clarksville, the Howard County parts of Laurel and Mount Airy and the rest of the county are all in this file. Commercial and sign permits in the same file are not counted, and grading permits are left out.
Counts are permits, not jobs: one job can need several permits. Nobody paid to be on this page and nobody can. Sources and definitions →
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 21045, Howard County", https://contractorrecords.com/howard-county/zip/21045, data through November 2025, from Howard County Department of Inspections, Licenses and Permits building-permit records.Link to a table: By kind of work · By year.
Download the tables (CSV): Permits in 21045 by kind of work · Permits in 21045 by year.