Residential new-construction permits in Baltimore County, MD
517 residential new-construction permits issued by Baltimore County (building), Baltimore County (electrical), Baltimore County (plumbing), Baltimore County (gas), the 8 weeks ending Oct 17, 2026. Oct 17, 2026 is the latest issue date the source has published.
Quick answer. In the 8 weeks ending Oct 17, 2026, 517 residential new-construction permits were issued in Baltimore County, MD, according to public records from Baltimore County (building), Baltimore County (electrical), Baltimore County (plumbing), Baltimore County (gas). The busiest ZIP codes were 21222 (55 permits), 21220 (49 permits), 21128 (42 permits). The median declared value was $150,000 across 386 permits that list one. The latest permit date published is Oct 17, 2026.
What a new-construction permit means in Baltimore County
A residential new-construction permit is a new home or a trade permit on one. For a builder's sub it shows who is building where; for post-construction trades it's a house that will need finishing.
In Baltimore County, permits were issued on 48 different days in the window; the most recent were Oct 16, 2026, Oct 15, 2026, Oct 14, 2026. The busiest ZIPs were 21222 (55), 21220 (49), 21128 (42).
By residential new-construction permit count, Baltimore County ranks #5 of the 83 new-construction pages on this site and #1 of 6 in MD.
- Subs: pitch the most active builders.
- Post-construction trades: plan around completion dates.
- Track declared values by ZIP.
Other work on the same permits
Share of these 517 permits whose type or description also matches another trade. These are the follow-on and partner trades on Baltimore County jobs.
- gas line: 95 permits (18%)
- electrical: 53 permits (10%)
- plumbing: 47 permits (9%)
- sewer/septic: 44 permits (9%)
Weekly trend
Permits per 7-day period, ending Oct 17, 2026. n/c = not collected yet (before our pipeline started pulling this source). It is not zero. Striped bars are partly collected weeks.
Top permit types
| Permit type / subtype | Permits | Share |
|---|---|---|
| Residential New / Res. Permit - New Dwelling VACANT | 189 | 37% |
| RESIDENTIAL ELECTRICAL | 51 | 10% |
| RESIDENTIAL PLUMBING | 45 | 9% |
| Residential New / Res. Permit - Tanks RURAL RESIDENTIAL SFD | 38 | 7% |
| Residential New / Res. Permit - Accessory Structure SFD | 29 | 6% |
Busiest ZIP codes
| ZIP | Permits | Share | 8-wk avg / week |
|---|---|---|---|
| 21222 | 55 | 11% | 7.00 |
| 21220 | 49 | 9% | 6.12 |
| 21128 | 42 | 8% | 5.38 |
| 21221 | 27 | 5% | 3.50 |
| 21237 | 26 | 5% | 3.25 |
8-wk avg / week is the trailing 8-week weekly average we quote in coverage checks for that ZIP and trade. It counts every source in the ZIP and includes permits with unknown use, so it can be higher than this page's residential count. 1 permit on this page has no ZIP in the source.
Type stated in the permit
| Type | Permits | Share |
|---|---|---|
| single-family | 477 | 92% |
| trade permit on a new home | 109 | 21% |
| duplex / townhome | 2 | 0% |
Parsed from the permit's own type and work text. A permit can state more than one; many state none.
Sample rows
Anonymized: street address, permit number and any names removed. Subscribers get the full row with address, permit number and source link.
| Issued | ZIP | Permit type | Scope | Type | Declared value |
|---|---|---|---|---|---|
| 2026-10-16 | 21093 | RESIDENTIAL PLUMBING | plumbing + new construction + sewer | single-family; trade permit on a new home | n/a |
| 2026-10-06 | 21162 | Residential New / Res. Permit - New Dwelling VACANT | new construction | single-family | $200,000 |
| 2026-09-28 | 21093 | Residential New / Res. Permit - New Dwelling VACANT | new construction + gas line | single-family | $3,500,000 |
| 2026-09-21 | 21117 | Residential New / Res. Permit - New Dwelling VACANT | new construction | single-family | $500,000 |
| 2026-09-14 | 21152 | Residential New / Res. Permit - New Dwelling VACANT | new construction | single-family | $671,000 |
| 2026-08-30 | 21222 | Residential New / Res. Permit - New Dwelling VACANT | new construction | single-family | $144,000 |
Source
- Baltimore County (building): Permit records on bcgisdata.baltimorecountymd.gov, published by Baltimore County (building). Source dataset. Collected window(s): Aug 22, 2026 – Oct 16, 2026. Last pulled Oct 18, 2026.
- Baltimore County (electrical): Permit records on bcgisdata.baltimorecountymd.gov, published by Baltimore County (electrical). Source dataset. Collected window(s): Aug 23, 2026 – Oct 17, 2026. Last pulled Oct 18, 2026.
- Baltimore County (gas): Permit records on bcgisdata.baltimorecountymd.gov, published by Baltimore County (gas). Source dataset. Collected window(s): Aug 22, 2026 – Oct 16, 2026. Last pulled Oct 18, 2026.
- Baltimore County (plumbing): Permit records on bcgisdata.baltimorecountymd.gov, published by Baltimore County (plumbing). Source dataset. Collected window(s): Aug 22, 2026 – Oct 16, 2026. Last pulled Oct 18, 2026.
Metric: Residential = the source marks the permit's use as residential (permits with commercial or unknown use are not counted). New Construction = the permit's type or work description matches the Curbside Signal new-construction rules. Counts exclude void or cancelled permits. Dates are the jurisdiction's permit issue date. Records are deduplicated on source and permit number. How we count. Part of the Baltimore-Columbia-Towson, MD metro: every trade × city page there.
The honest limit. A permit usually means the job is already sold. We say that up front. The value is what happens around it:
- Neighbor marketing around active jobs: same-age houses on the same street.
- Cross-trade follow-on demand: new roof → solar, gutters, insulation; remodel → HVAC, electrical, landscaping, pool; new build → pest, security, landscaping.
- Competitor intelligence: which contractors pull permits where (where the jurisdiction publishes it), and who to recruit as subs.
- Early-stage projects for commercial trades and GC subs.
Follow-on: A new home leads to landscaping, fencing, security, pest control and window coverings.
Other trades in Baltimore County, MD
Residential permits in the same window, by trade.
Questions
How many residential new-construction permits were issued in Baltimore County, MD recently?
517 residential new-construction permits in the public records we pulled, the 8 weeks ending Oct 17, 2026. Source: Baltimore County (building), Baltimore County (electrical), Baltimore County (plumbing), Baltimore County (gas).
Which Baltimore County ZIP codes have the most new-construction permits?
21222 (55 permits), 21220 (49 permits), 21128 (42 permits), by residential new-construction permit count the 8 weeks ending Oct 17, 2026. 41 ZIP codes had at least one permit.
What is the median declared value of a residential new-construction permit in Baltimore County?
$150,000, across 386 permits that list a valuation. Declared values are what the applicant stated on the permit, not the contract price.
How do I get the Baltimore County new-construction permit list, and what does it cost?
Request a free sample for your ZIPs first. ZIP Pack is $29/mo for one trade and up to 5 ZIPs every Monday; Metro Feed is $99/mo for a whole metro and up to 3 trades, with daily alerts. Guarantee on every package: If a weekly file is late or missing, that month is free. If a month delivers under half the 8-week average permit count for your ZIPs and trade, the next month is free.
Baltimore County new-construction leads, every Monday
Send your trade and ZIP codes. We'll reply with a real sample from the public records we pull, or tell you plainly that we don't cover you yet.