2.3 C-3: INDUSTRIAL COMMERCIAL ZONE

The Industrial Commercial or C-3 Zone is intended to apply to areas where heavy commercial uses and compatible light industrial uses not serving day to day needs are the desirable predominant uses. The following regulations shall apply in all Industrial Commercial or C-3 Zones. For further description of use types, see “Glossary of Use Types” in Section D: Use Types, at the end of this Chapter. (Former Section INL#314-38; Ord. 1801, Sec. 1, 6/30/87; Amended by Ord. 2472, Sec. 1, 2/14/12)

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314-2.3 C-3: INDUSTRIAL COMMERCIAL
Use Type Principal Permitted Use
Commercial Use Types Automotive Sales, Service and Repair
Office and Professional Service
Warehousing, Storage and Distribution
Industrial Use Types Cottage Industry
Research/Light Industrial
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The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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314-2.3 C-3: INDUSTRIAL COMMERCIAL
Residential Use Types Emergency Shelters. (Amended by Ord. 2472, Sec. 1, 2/14/12)
Within Housing Opportunity Zones multiple dwellings on the upper floors of
multistory structures where below are commercial establishments engaged in
uses designated “Principally Permitted” or “Conditionally Permitted” in the C-3
Zone.
Commercial Residential.
Supportive housing is permitted above the ground floor as the primary use.
Use Type Uses Permitted With a Special Permit
Residential Use Types Outside Housing Opportunity Zones, residential uses subordinate to the
permitted use including caretaker’s residences and apartments on the upper
floors of multistory structures where below are establishments engaged in
uses designated “Principally Permitted” or “Conditionally Permitted” in the C-3
Zone.
Single-room occupancy facilities which are conversions of existing buildings.
(Added by Ord. 2313A, 12/16/03, Amended by Ord. 2335, 12/14/04)
Supportive housing may be located on the ground floor with a special permit.
Use Type Uses Permitted With a Use Permit
Residential Use| Types Tiny house villages and dependent unit villages.
Civic Use Types Community Assembly
Commercial Use Types Heavy Commercial
Neighborhood Commercial
Retail Sales
Retail Service
Mini-Storage
Use Types Not Listed in Any use not specifically enumerated in this division, if it is similar to and
This Table compatible with the uses permitted in the C-3 Zone.
Other Regulations
Minimum Lot Area 5,000 square feet.
Minimum Lot Width Fifty feet (50').
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The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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314-2.3 C-3: INDUSTRIAL COMMERCIAL
Minimum Yard
Setbacks*
Front Five feet (5').
Rear Five feet (5').
Side Five feet (5') or ten (10') feet on one side.
Maximum Ground (None specified.)
Coverage
Maximum Building Forty-five feet (45').
Height
All equipment and materials storage areas shall be security fenced to a height
of not less than six (6) feet. (Added by Ord. 1801, Sec. 1, 6/30/87)
In addition, all such areas shall be screened from view of any residential area,
public roadway, or recreational use area.
Special Regulations
(Former Section INL#314-38(c)(5); Added by Ord. 1801, Sec. 1, 6/30/87)
Such fencing and screening need not comply with yard setbacks, but shall
comply with the Visibility Obstruction Regulations (Humboldt County Code,
Section 341). (Former Section INL#314-38(c)(5); Added by Ord. 1801, Sec. 1, 6/
30/87)
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*** Note:** Setbacks may be modified by other provisions of this Code or State law. For example, see Section 314-22.1, “Alquist-Priolo Fault Hazard” and the “Fire Safe” Regulations at Title III, Division 11.

(Former Section INL#314-38(a)(1-5); INL#314-38(b)(1-6); INL#314-38(c)(1-5))