Baltimore building & ADU permits
Recent permit activity, updated continuously.
734
Permits tracked
0
ADU permits
24
Distinct ZIP codes
Jun 19, 2026
Newest permit
Recent permits
A sample of the freshest permits in this jurisdiction — ZIP and city only (no street addresses).
| ZIP | Permit type | ADU type | Valuation | Applied |
|---|---|---|---|---|
| 21215 | Residential | — | $4,000 | Jun 19, 2026 |
| 21224 | Residential | — | $8,584 | Jun 19, 2026 |
| 21225 | Residential | — | $2,000 | Jun 19, 2026 |
| 21216 | Residential | — | $500 | Jun 19, 2026 |
| 21218 | Residential | — | $11,000 | Jun 19, 2026 |
| 21229 | Residential | — | $34,000 | Jun 19, 2026 |
| 21234 | Residential | — | $12,385 | Jun 19, 2026 |
| 21223 | Residential | — | $2,000 | Jun 19, 2026 |
| 21212 | Residential | — | $7,500 | Jun 19, 2026 |
| 21210 | Residential | — | $1,000 | Jun 19, 2026 |
| 21212 | Residential | — | $7,500 | Jun 19, 2026 |
| 21211 | Residential | — | $17,785 | Jun 19, 2026 |
| 21206 | Residential | — | $4,128 | Jun 19, 2026 |
| 21229 | Residential | — | $3,500 | Jun 19, 2026 |
| 21213 | Residential | — | $3,000 | Jun 19, 2026 |
| 21206 | Residential | — | $2,000 | Jun 19, 2026 |
| 21230 | Residential | — | $5,000 | Jun 19, 2026 |
| 21215 | Commercial | — | $30,685 | Jun 19, 2026 |
| 21224 | Other | — | $500 | Jun 19, 2026 |
| 21216 | Residential | — | $15,425 | Jun 19, 2026 |
Top ZIP codes by recent activity
Housing law — Maryland
Accessory dwelling units in Maryland are regulated locally; there is no statewide ADU mandate, so rules vary by city and county.
Maryland has no statewide upzoning law; residential density is set by local zoning, with several counties pursuing their own reforms.
Data source
Sourced from Open Baltimore — DHCD (ArcGIS). Open Baltimore license (commercial use permitted).
Baltimore permit data — FAQ
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Informational only, not legal advice. Headline counts reflect all permits Igni has tracked for this jurisdiction; the table shows recent activity. Housing law changes — verify current statutes before relying on this.