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Downey · Zoning · C-3

Downey C-3 zoning: height, setbacks and lot size

In Downey's C-3 zone, buildings can be up to 105 ft (7 stories) tall and the minimum lot size is 10,000 sq ft (Downey code, read October 2026).

Key points

  • Maximum building height: 105 ft
  • Maximum number of stories: 7 stories
  • Minimum side setback: 5 ft (street side of a lot on a street that is not a major road; no minimum for an interior side next to a nonresidential zone)
  • Minimum rear setback: 15 ft (abutting nonresidential zone)
  • Minimum lot size: 10,000 sq ft
  • Maximum lot coverage: 50%
  • Maximum floor area ratio (FAR): 3.0

C-3 is a zoning district in Downey. Every value below was read from the Downey Municipal Code and links to its section (read October 2026). State laws such as the ADU and SB 9 rules can allow more on a residential lot. General information, not legal advice — read the code text and check with the city before you build.

Development standards in C-3

The general rule for a typical lot in this zone. Zoning tables often attach notes, such as rules for corner lots, lots next to a residential zone, or new subdivisions only. Open “code text” under a value to see the table cell or sentence it was read from.

Maximum building height
105 ft
§ 9314.06 · code text
Table row “Building height — maximum (feet or stories, whichever is less) b”, column “C-3”: 105 feet or 7 stories
Maximum number of stories
7 stories
§ 9314.06 · code text
Table row “Building height — maximum (feet or stories, whichever is less) b”, column “C-3”: 105 feet or 7 stories
Minimum side setback
5 ft
Applies: street side of a lot on a street that is not a major road; no minimum for an interior side next to a nonresidential zone
§ 9314.06 · code text
Table row “street (abutting all other streets) c”, column “C-3”: 5
Minimum rear setback
15 ft
Applies: abutting nonresidential zone
§ 9314.06 · code text
Table row “abutting nonresidential zone”, column “C-3”: 15
Minimum lot size
10,000 sq ft
§ 9314.06 · code text
Table row “Lot area — minimum (square feet)”, column “C-3”: 10,000
Maximum lot coverage
50%
§ 9314.06 · code text
Table row “Lot coverage — maximum (percent)”, column “C-3”: 50
Maximum floor area ratio (FAR)
3.0
§ 9314.06 · code text
Table row “Floor area ratio — maximum”, column “C-3”: 3.0

Uses in C-3

Uses the code's use tables allow in C-3, or allow with a permit. Each links to its page with the code section.

  • Kennel — Needs a conditional use permit
  • Private school — Needs a conditional use permit — see note

When a different number applies

The code sets other values for particular lots, buildings or locations in C-3:

  • Minimum side setback: 46 ft — interior side setback abutting a residential zone § 9314.06
  • Minimum rear setback: 46 ft — abutting a residential zone § 9314.06

Not on this page

We did not find a general front setback, density limit for C-3 in the zoning tables we read. The code may still set one elsewhere — check the Downey Municipal Code.

Other Downey zoning districts

Who this affects

HomeownersArchitects and designersDevelopersReal estate agents

Frequently asked questions

What is the maximum building height in Downey's C-3 zone?

105 ft — Downey Municipal Code § 9314.06.

What is the maximum number of stories in Downey's C-3 zone?

7 stories — Downey Municipal Code § 9314.06.

What is the minimum side setback in Downey's C-3 zone?

5 ft (street side of a lot on a street that is not a major road; no minimum for an interior side next to a nonresidential zone) — Downey Municipal Code § 9314.06.

What is the minimum rear setback in Downey's C-3 zone?

15 ft (abutting nonresidential zone) — Downey Municipal Code § 9314.06.

What is the minimum lot size in Downey's C-3 zone?

10,000 sq ft — Downey Municipal Code § 9314.06.

General information, not legal advice.

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