Irwindale · Zoning · C-3
Irwindale C-3 zoning: height, setbacks and lot size
In Irwindale's C-3 zone, generally buildings can be up to 45 ft tall, the front setback is 10 ft and the minimum lot size is 5,000 sq ft, with the conditions listed below (Irwindale code, read October 2026).
Key points
- Maximum building height: 45 ft
- Minimum front setback: 10 ft (marquees and signs may encroach up to 5 ft into the front yard)
- Minimum lot size: 5,000 sq ft (if designated C-3 or C-3 (5,000))
- Maximum lot coverage: 50%
C-3 (C-3 Heavy Commercial-Residential Zone) is a zoning district in Irwindale. Every value below was read from the Irwindale 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 | 45 ft § 17.44.070 · code textNo building or structure in the C-3 zone shall be more than forty-five feet in height (see Section 17.48.051). |
|---|---|
| Minimum front setback | 10 ft Applies: marquees and signs may encroach up to 5 ft into the front yard § 17.44.060 · code textEach lot in the C-3 zone shall have a front yard of not less than ten feet in depth; provided, that marquees and signs may encroach into the front yard setback area not more than five feet. |
| Minimum lot size | 5,000 sq ft Applies: if designated C-3 or C-3 (5,000) § 17.44.040 · code textFive thousand square feet, if designated C-3 or C-3 (5,000); |
| Maximum lot coverage | 50% § 17.44.070 · code textNo lot or parcel of land in the C-3 zone shall have the lot coverage by buildings or structures in excess of fifty percent of the total lot area (see Section 17.48.051). |
When a different number applies
The code sets other values for particular lots, buildings or locations in C-3:
- Minimum rear setback: 20 ft — When the lot fronts upon a street, public or private, the opposite side of which is zoned for R or A purposes, or when the lot abuts any R or A zoned property § 17.44.060
Not on this page
We did not find a general stories, side setback, rear setback, FAR, density limit for C-3 in the zoning tables we read. The code may still set one elsewhere — check the Irwindale Municipal Code.
Other Irwindale zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Irwindale's C-3 zone?
45 ft — Irwindale Municipal Code § 17.44.070.
What is the minimum front setback in Irwindale's C-3 zone?
10 ft (marquees and signs may encroach up to 5 ft into the front yard) — Irwindale Municipal Code § 17.44.060.
What is the minimum lot size in Irwindale's C-3 zone?
5,000 sq ft (if designated C-3 or C-3 (5,000)) — Irwindale Municipal Code § 17.44.040.
What is the maximum lot coverage in Irwindale's C-3 zone?
50% — Irwindale Municipal Code § 17.44.070.
General information, not legal advice.
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