Residential deck and patio permits in Baltimore County, MD
221 residential deck and patio permits issued by Baltimore County (building), the 8 weeks ending Oct 16, 2026. Oct 16, 2026 is the latest issue date the source has published.
Quick answer. In the 8 weeks ending Oct 16, 2026, 221 residential deck and patio permits were issued in Baltimore County, MD, according to public records from Baltimore County (building). The busiest ZIP codes were 21227 (34 permits), 21228 (17 permits), 21128 (14 permits). The median declared value was $10,000 across 220 permits that list one. The latest permit date published is Oct 16, 2026.
What a deck and patio permit means in Baltimore County
A residential deck or patio permit is a new or rebuilt deck, porch, patio cover, pergola or balcony. For a deck builder it marks streets where homeowners are spending on outdoor living now.
In Baltimore County, permits were issued on 36 different days in the window; the most recent were Oct 15, 2026, Oct 14, 2026, Oct 13, 2026. The busiest ZIPs were 21227 (34), 21228 (17), 21128 (14).
By residential deck and patio permit count, Baltimore County ranks #2 of the 56 deck and patio pages on this site and #1 of 10 in MD.
- Mail the block around each new deck.
- Offer covers, lighting and railings to new deck addresses.
- Track which builders pull the most deck permits.
Other work on the same permits
Share of these 221 permits whose type or description also matches another trade. These are the follow-on and partner trades on Baltimore County jobs.
- general remodel: 34 permits (15%)
- addition/ADU: 4 permits (2%)
- windows & doors: 2 permits (1%)
- garage: 2 permits (1%)
Weekly trend
Permits per 7-day period, ending Oct 16, 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 - Deck SFD | 74 | 33% |
| Residential New / Res. Permit - Deck VACANT | 54 | 24% |
| Residential New / Res. Permit - Deck SFA | 39 | 18% |
| Residential Alteration/Addition / Res. Permit - Alteration/Addition SFD | 26 | 12% |
| Residential New / Res. Permit - Deck RURAL RESIDENTIAL SFD | 13 | 6% |
Busiest ZIP codes
| ZIP | Permits | Share | 8-wk avg / week |
|---|---|---|---|
| 21227 | 34 | 15% | 4.25 |
| 21228 | 17 | 8% | 2.12 |
| 21128 | 14 | 6% | 1.75 |
| 21117 | 13 | 6% | 1.62 |
| 21093 | 13 | 6% | 1.62 |
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.
Work stated in the permit
| Work | Permits | Share |
|---|---|---|
| deck | 206 | 93% |
| porch | 29 | 13% |
| stairs / railing | 3 | 1% |
| balcony | 1 | 0% |
| patio cover / pergola | 1 | 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 | Work | Declared value |
|---|---|---|---|---|---|
| 2026-10-15 | 21206 | Residential Alteration/Addition / Res. Permit - Alteration/Addition SFD | remodel + deck/patio | porch | $27,000 |
| 2026-10-07 | 21236 | Residential New / Res. Permit - Deck SFD | deck/patio | deck | $14,000 |
| 2026-10-02 | 21234 | Residential New / Res. Permit - Deck SFA | deck/patio | deck | $15,000 |
| 2026-09-23 | 21221 | Residential New / Res. Permit - Deck SFA | deck/patio | deck | $8,800 |
| 2026-09-09 | 21221 | Residential Alteration/Addition / Res. Permit - Alteration/Addition SFD | addition/ADU + deck/patio | deck | $85,000 |
| 2026-08-27 | 21128 | Residential New / Res. Permit - Deck VACANT | deck/patio | deck | $4,500 |
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.
Metric: Residential = the source marks the permit's use as residential (permits with commercial or unknown use are not counted). Decks & Patios = the permit's type or work description matches the Curbside Signal deck and patio 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: Pools, additions and new builds lead to decks and patios; decks lead to fencing, landscaping and outdoor electrical.
Other trades in Baltimore County, MD
Residential permits in the same window, by trade.
Questions
How many residential deck and patio permits were issued in Baltimore County, MD recently?
221 residential deck and patio permits in the public records we pulled, the 8 weeks ending Oct 16, 2026. Source: Baltimore County (building).
Which Baltimore County ZIP codes have the most deck and patio permits?
21227 (34 permits), 21228 (17 permits), 21128 (14 permits), by residential deck and patio permit count the 8 weeks ending Oct 16, 2026. 37 ZIP codes had at least one permit.
What is the median declared value of a residential deck and patio permit in Baltimore County?
$10,000, across 220 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 deck and patio 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 deck and patio 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.