Union City, CA · zoning record
The dimensional standards that govern what you can build in the RM 2,500 district, straight from Union City'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 (2026-10-03)
These are the letter-of-the-law limits for the base RM 2,500 district. Overlays (historic, neighborhood plan, and similar) can tighten them; a specific address check resolves the overlays that actually apply.
How tall the building may be.
“Maximum Height 30 ft. 30 ft. 30 ft. (9) 30 ft. 30 ft. 75 ft.”table › Min. Lot Width (interior/corner) › Exterior Side Yard Setback › Rear Yard Setback › Maximum Height › RM 2,500 column · Union City code · read 2026-10-03
Smallest conforming lot.
“Min. Lot Area 6,000 s.f. (2) 4,500 s.f. (2) 5,000 s.f. (2) 7,000 s.f. 6,000 s.f. 6,000 s.f.”table › Min. Site Area per Unit › Min. Lot Area › RM 2,500 column · Union City code · read 2026-10-03
Shallowest conforming lot.
“Min. Lot Depth 100 ft. 90 ft. N/A 100 ft. 100 ft. 100 ft.”table › Min. Lot Width (interior/corner) › Min. Lot Depth › RM 2,500 column · Union City code · read 2026-10-03
Share of the lot the building footprint may cover.
“Max. Lot Coverage 50% 50% 50% (3) 40% 40% 40%”table › Min. Site Area per Unit › Max. Lot Coverage › RM 2,500 column · Union City code · read 2026-10-03
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.
See how these standards resolve on a specific parcel, with the overlays that actually apply, in about 20 seconds.
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