Plumas County · Zoning · I-1
Plumas County I-1 zoning: height, setbacks and lot size
In Plumas County's I-1 zone, buildings can be up to 75 ft tall, the front setback is 20 ft and the minimum lot size is 10,000 sq ft (Plumas County code, read October 2026).
Key points
- Maximum building height: 75 ft
- Minimum front setback: 20 ft
- Minimum side setback: None required
- Minimum rear setback: None required
- Minimum lot size: 10,000 sq ft
- Maximum lot coverage: 70%
I-1 (Heavy Industrial Zone) is a zoning district in Plumas County. Every value below was read from the Plumas County 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 I-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 | 75 ft § 9-2.2503 · code textNo timber product manufacturing structure in the Heavy Industrial Zone (I-1) shall exceed 125 feet in height; no other structure shall exceed seventy-five (75') feet in height, except for dwelling units, which shall not exceed thirty-five (35') feet. |
|---|---|
| Minimum front setback | 20 ft § 9-2.2505 · code text(a) Front yards: Not less than twenty (20') feet; and |
| Minimum side setback | None required § 9-2.2505 · code text(b) Side and rear yards: None, except ten (10') feet for yards adjacent to a residentially zoned parcel. |
| Minimum rear setback | None required § 9-2.2505 · code text(b) Side and rear yards: None, except ten (10') feet for yards adjacent to a residentially zoned parcel. |
| Minimum lot size | 10,000 sq ft § 9-2.2504 · code text(a) The minimum net lot area in the Heavy Industrial Zone (I-1) shall be 10,000 square feet. |
| Maximum lot coverage | 70% § 9-2.2504 · code text(c) The maximum building coverage shall not exceed seventy (70%) percent of the lot area. |
When a different number applies
The code sets other values for particular lots, buildings or locations in I-1:
- Maximum building height: 125 ft — timber product manufacturing structure § 9-2.2503
- Maximum building height: 35 ft — dwelling units § 9-2.2503
- Minimum side setback: 10 ft — yards adjacent to a residentially zoned parcel § 9-2.2505
- Minimum rear setback: 10 ft — yards adjacent to a residentially zoned parcel § 9-2.2505
Not on this page
We did not find a general stories, FAR, density limit for I-1 in the zoning tables we read. The code may still set one elsewhere — check the Plumas County Municipal Code.
Other Plumas County zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Plumas County's I-1 zone?
75 ft — Plumas County Municipal Code § 9-2.2503.
What is the minimum front setback in Plumas County's I-1 zone?
20 ft — Plumas County Municipal Code § 9-2.2505.
What is the minimum side setback in Plumas County's I-1 zone?
None required — Plumas County Municipal Code § 9-2.2505.
What is the minimum rear setback in Plumas County's I-1 zone?
None required — Plumas County Municipal Code § 9-2.2505.
What is the minimum lot size in Plumas County's I-1 zone?
10,000 sq ft — Plumas County Municipal Code § 9-2.2504.
General information, not legal advice.
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