Brea · Zoning · M-1
Brea M-1 zoning: height, setbacks and lot size
In Brea's M-1 zone, generally buildings can be up to 60 ft tall, the front setback is 50 ft and the minimum lot size is 6,000 sq ft, with the conditions listed below (Brea code, read October 2026).
Key points
- Maximum building height: 60 ft
- Minimum front setback: 50 ft (Where the M-1 Zone fronts, sides, or rears on any arterial street, or a local street which is a boundary with a residential zone)
- Minimum side setback: None required (100 ft where adjoining a residential zone)
- Minimum rear setback: 0 ft (100 ft where adjoining a residential zone)
- Minimum lot size: 6,000 sq ft
M-1 (Light Industrial Zone) is a zoning district in Brea. Every value below was read from the Brea 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 M-1
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 | 60 ft § 20.252.040 · code textBuildings and structures erected in the M-1 Zone shall have a height no greater than sixty (60) feet. |
|---|---|
| Minimum front setback | 50 ft Applies: Where the M-1 Zone fronts, sides, or rears on any arterial street, or a local street which is a boundary with a residential zone § 20.252.040 · code textWhere the M-1 Zone fronts, sides, or rears on any arterial street, or a local street which is a boundary with a residential zone, there shall be a yard abutting such arterial street or local street of not less than fifty (50) feet. |
| Minimum side setback | None required Applies: 100 ft where adjoining a residential zone § 20.252.040 · code textNo side or rear yards required except where adjoining a residential zone, the side and rear yard(s) shall be a minimum of one hundred (100) feet. |
| Minimum rear setback | 0 ft Applies: 100 ft where adjoining a residential zone § 20.252.040 · code textNo side or rear yards required except where adjoining a residential zone, the side and rear yard(s) shall be a minimum of one hundred (100) feet. |
| Minimum lot size | 6,000 sq ft § 20.252.040 · code textEach lot shall have a minimum area of six thousand (6,000) square feet. |
When a different number applies
The code sets other values for particular lots, buildings or locations in M-1:
- Minimum front setback: 10 ft — Where the M-1 Zone fronts, sides or rears on a local street which is not a boundary with a residential zone § 20.252.040
- Minimum side setback: 100 ft — Where adjoining a residential zone § 20.252.040
- Minimum rear setback: 100 ft — Where adjoining a residential zone § 20.252.040
Not on this page
We did not find a general stories, lot coverage, FAR, density limit for M-1 in the zoning tables we read. The code may still set one elsewhere — check the Brea Municipal Code.
Other Brea zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Brea's M-1 zone?
60 ft — Brea Municipal Code § 20.252.040.
What is the minimum front setback in Brea's M-1 zone?
50 ft (where the M-1 Zone fronts, sides, or rears on any arterial street, or a local street which is a boundary with a residential zone) — Brea Municipal Code § 20.252.040.
What is the minimum side setback in Brea's M-1 zone?
None required (100 ft where adjoining a residential zone) — Brea Municipal Code § 20.252.040.
What is the minimum rear setback in Brea's M-1 zone?
0 ft (100 ft where adjoining a residential zone) — Brea Municipal Code § 20.252.040.
What is the minimum lot size in Brea's M-1 zone?
6,000 sq ft — Brea Municipal Code § 20.252.040.
General information, not legal advice.
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