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  1. Zoning
  2. Arlington, TX
  3. RM-12

Arlington, TX · zoning record

RM-12 zoning in Arlington.

The dimensional standards that govern what you can build in the RM-12 district, straight from Arlington'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)

RM-12 dimensional standards.

These are the letter-of-the-law limits for the base RM-12 district. Overlays (historic, neighborhood plan, and similar) can tighten them; a specific address check resolves the overlays that actually apply.

Maximum height

40 ft

How tall the building may be.

“Building height, max. 40”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

Minimum lot size

5,000 sf

Smallest conforming lot.

“Single family 5,000”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

Minimum lot width

50 ft

Narrowest conforming lot.

“Single family 50”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

Minimum lot depth

100 ft

Shallowest conforming lot.

“4. Lot depth, min. (ft) 100”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

Interior side setback

5 ft

Required space from a side line.

“8. Interior, min. (ft) Side 5”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

Street-side setback

20 ft

Required space from a side street on a corner lot.

“6. Street side, min. (ft) All roadways 20”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

Rear setback

10 ft

Required space from the rear line.

“Side 5 Rear 10”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

Maximum building coverage

60 %

Share of the lot the building footprint may cover.

“Single Family 60”RM-12 B. Density › 2.2.7 · Arlington code · read 2026-10-02

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 Arlington districts on record.

RERS-15RS-20RMF-22

Check a real Arlington lot against RM-12.

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

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