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  1. Zoning
  2. Baltimore, MD
  3. R-4

Baltimore, MD · zoning record

R-4 zoning in Baltimore.

The dimensional standards that govern what you can build in the R-4 district, straight from Baltimore's ordinance, with every figure quoting its source. Check a specific address to see how these rules apply to a real lot.

Free · Every figure cited · Read from the current code (2026-10-02)

R-4 dimensional standards.

These are the letter-of-the-law limits for the base R-4 district. Overlays (historic, neighborhood plan, and similar) can tighten them; a specific address check resolves the overlays that actually apply.

Minimum lot size

3,000 sf

Smallest conforming lot. This is the rule for a detached house; the code sets other values below.

“Dwelling: Detached or Semi-Detached | 2 acres | 1 acre | 21,780 sq.ft. | 14,520 sq.ft. | 9,000 sq.ft. | 7,300 sq.ft. | 5,000 sq.ft. | 5,000 sq.ft. | 3,000 sq.ft.”Table 8-401 Detached and Semi-Detached Residential Districts – Bulk and Yard Regulations › Minimum Lot Area › Dwelling: Detached or Semi-Detached › R-4 column · Baltimore code · read 2026-10-02
Other values, by what you build · 1
  • All Other Uses3,000 sf
    “All Other Uses | 2 acres | 1 acre | 20,000 sq.ft. | 20,000 sq.ft. | 20,000 sq.ft. | 20,000 sq.ft. | 20,000 sq.ft. | 5,000 sq.ft. | 3,000 sq.ft.”Table 8-401 Detached and Semi-Detached Residential Districts – Bulk and Yard Regulations › Minimum Lot Area › All Other Uses › R-4 column · Baltimore code

Interior side setback

5 ft

Required space from a side line. This is the rule for a detached house; the code sets other values below.

“Dwelling: Detached | 15 feet | 15 feet | 10 feet | 10 feet | 5 feet | 5 feet | 5 feet | 5 feet | 5 feet”Table 8-401 Detached and Semi-Detached Residential Districts – Bulk and Yard Regulations › Minimum Interior- Side Yard › Dwelling: Detached › R-4 column · Baltimore code · read 2026-10-02
Other values, by what you build · 2
  • Dwelling: Semi-Detached 210 ft
    “Dwelling: Semi-Detached 2 | 15 feet | 15 feet | 10 feet | 10 feet | 5 feet | 5 feet | 10 feet | 5 feet | 10 feet”Table 8-401 Detached and Semi-Detached Residential Districts – Bulk and Yard Regulations › Minimum Interior- Side Yard › Dwelling: Semi-Detached 2 › R-4 column · Baltimore code
  • All Other Uses10 ft
    “All Other Uses | 15 feet | 15 feet | 10 feet | 10 feet | 5 feet | 5 feet | 10 feet | 5 feet | 10 feet”Table 8-401 Detached and Semi-Detached Residential Districts – Bulk and Yard Regulations › Minimum Interior- Side Yard › All Other Uses › R-4 column · Baltimore code

Sources

Every figure above is quoted verbatim from the current ordinance. We never substitute a typical-for-zone default: a field absent from the record shows nothing, not a guess.

Informational only — not a permit, appraisal, or professional engineering opinion. Verify with your local planning department before acting on it. See Terms and data sources.

Other Baltimore districts on record.

R-1AR-1R-1BR-8R-10R-1CR-2R-5R-1DR-3R-6R-9R-1ER-7

Check a real Baltimore lot against R-4.

See how these standards resolve on a specific parcel, with the overlays that actually apply, in about 20 seconds.

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