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Title III›Division 1 — PLANNING›Part 2 — GLOSSARY OF USE TYPES

Chapter 4

Humboldt County Zoning Code · 2026-07 edition · updated 2026-07-09 · Humboldt County

TABLE OF CONTENTS

Section A:
Regulations for the Zoning Districts
Part 1: Principal Zones
314-1 Lists of Zone Mapping Designations and Lists of Permitted Use Types
314-1.1 Zone Mapping Designations
314-1.2 Lists of Permitted Uses
314-2 Commercial Zone Districts
314-2.1 C-1: Neighborhood Commercial Zone
314-2.2 C-2: Community Commercial Zone
314-2.3 C-3: Industrial Commercial Zone
314-2.4 CH: Highway Service Commercial Zone
314-3 Industrial Use Regulations
314-3.1 MB: Business Park Zone
314-3.2 ML: Limited Industrial Zone
314-3.3 MH: Heavy Industrial Zone
314-4 Public Zones
314-4.1 AV: Airport Zone
314-4.2 PF1: Public Facility (Urban)
314-4.3 PF2: Public Facilty Zone (Rural)
314-4.5 PR: Public Resource and Recreation
314-5 Natural Hazard/Flood Zones
314-5.1 DF: Design Floodway Zone

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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314-5.2 FP: Flood Plain Zone
314-6 Residential Zone Districts
314-6.1 RS: Residential Suburban Zone
314-6.2 R-1: Residential One-Family Zone
314-6.3 R-2: Residential Two-Family Zone
314-6.4 R-3: Residential Multiple Family Zone
314-6.5 R-4: Apartment Professional Zone
314-6.6 RA: Rural Residential Agriculture
314-7 Resource Use Regulations
314-7.1 AE: Agriculture Exclusive Zone
314-7.2 AG: Agriculture General Zone
314-7.3 FR: Forestry Recreation Zone
314-7.4 TPZ: Timberland Production Zone
314-7.5 TE: Timberland Exclusive Zone
314-7.6 TL: Tribal Lands
314-8 Unclassifed Zone Regulations
314-8.1 U: Unclassifed Zone
314-9 Mixed Use Zone Districts
314-9.1 MU1: Mixed Use (Urban)
314-9.2 MU2: Mixed Use (Rural)
314-10 through 314-14
(Sections Reserved for Future Use)
Part 2: Regulations for the Combining Zones
314-15 Special Area Combining Zones: Purpose, Where They Apply, and List of Zone
Designations
314-15.1 Applicability
314-15.2 Special Area Combining Zones and Respective Designations
314-16 “A” Combining Zone Designations
314-16.1 AP - Airport Safety Review
314-17 “B” Combining Zone Designations
314-17.1 B - Special Building Site
314-18
“C” Combining Zone Designations
314-19 “D” Combining Zone Designations
314-19.1 D - Design Control
314-20
“E” Combining Zone Designations
314-21 “F” Combining Zone Designations
314-21.1 F - Flood Hazard Areas
314-22 “G” Combining Zone Designations
314-22.1 G - Alquist-Priolo Fault Hazard

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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314-22.2 GO - Greenway and Open Space

314-22.2 GO - Greenway and Open Space
314-23
“H” Combining Zone Designations
314-24
“I” Combining Zone Designations
314-25
“J” Combining Zone Designations
314-26
“K” Combining Zone Designations
314-27 “L” Combining Zone Designations
314-27.1 L - Landscaping and Design
314-28 “M” Combining Zone Designations
314-28.1 M - Manufactured Home Development Standard Combining Zone
314-28.2 MR – Mineral Resources Combining Zone
314-29 “N” Combining Zone Designations
314-29.1 N - Noise Impact
314-30
“O” Combining Zone Designations
314-31 “P” Combining Zone Designations
314-31.1 P - Planned Development
314-31.2 PRD – Planned Rural Development
314-32 “Q” Combining Zone Designations
314-32.1 Q - Qualifed
314-33 “R” Combining Zone Designations
314-33.1 R - Recreation
314-33.2 RR – Railroad Rights-of-Way Protection
314-34 “S” Combining Zone Designations
314-34.1 S - Development Standard Combining Zone
314-34.2 SM - Development Standard Combining Zone
314-34.3 SY - Development Standard Combining Zone
314-34.4 SZ - Development Standard Combining Zone
314-35 “T” Combining Zone Designations
314-35.1 T - Manufactured Home Combining Zone
314-36
“U” Combining Zone Designations
314-37 [Repealed by Ord. 2732, § 9, 3/5/2024]
314-38 “W” Combining Zone Designations
314-38.1 WR - Streamside Management Areas and Wetlands
314-38.1 Purpose
314-38.2 Applicability
314-38.3 Modifcations Imposed by the Streamside Management Areas and Wetlands
Combining Zone
314-39 “X” Combining Zone Designations
314-39.1 X - Recreation

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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314-40 “Y” Combining Zone Designations
314-40.1 Y - Specifed Minimum and Average Lot Size
314-41 “Z” Combining Zone Designations
314-41.1 Z - No Further Subdivision Allowed
Section B:
Regulations That Apply in All or Several Zones
Part 1:
Uses and Activities
314-42 General Provisions
314-42.1 Applicability
314-43-68 Alphabetical Listing of Uses and Activities
314-43.1 Accessory Uses
314-43.2 Allowed Agricultural Activities Not a Nuisance (“Right to Farm Ordinance”)
314-43.3 Animal Keeping
314-44.1 Repealed by Ord. 2732, § 9, 3/5/2024
314-45.1 Cottage Industry
314-46.1 Day Shelters
314-47.1 Emergency Housing Under Shelter Crisis Declaration
314-47.2*
Emergency Shelters
314-47.3 Employee Housing
314-49
(Section Reserved for Future Use)
314-50.1 Home Occupations and Addresses of Convenience
314-51 through 314-53
(Sections Reserved for Future Use)
314-54.1 Low Barrier Navigation Centers
314-55 Medical Marijuana Land Uses: Inland
314-55.1 Indoor Residential Cultivation of Medical Marijuana for Personal Use
314-55.2 Outdoor Cultivation of Medical Marijuana for Personal Use on Small Parcels
314-55.3 Medical Cannabis Dispensaries
314-55.4 Commercial Cultivation, Processing, Manufacturing, Distribution, Testing,
and Sale of Cannabis Land Use Regulation for the Inland Area
314-55.5 Industrial Hemp Land Use Regulations
314-314-56.5
Commercial Residential Development
314-58.1 Public Uses
314-59.1 Removal of Natural Materials
314-60.05
Short-Term Rentals
314-60.1 Single-Room Occupancy Structures and Facilities
314-61.05
Safe Parking and Safe Shelter Pilot Program
314-61.1 Streamside Management Areas and Wetlands Ordinance
314-61-2 Supportive Housing
314-62.1 Temporary Uses

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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314-62.2 Timber Production

  • 314-62.3 Tiny House Villages

    • 314-62.3.1 Types and Number of Structures

    • 314-62.3.2 General Provisions

    • 314-62.3.3 Development Standards

    • 314-62.3.4 Development Standards for Moveable Tiny Houses

  • 314-62.4 Dependent Unit Villages

    • 314-62.4.1 Types and Number of Structures

    • 314-62.4.2 General Provisions 314-62.4.3 Development Standards

  • 314-62.5 Emergency Housing Villages

  • 314-62.5.1 Applicability 314-62.5.2 Operating Standards 314-62.5.3 Development Standards 314-62.5.4 Emergency Dependent Unit Villages 314-62.5.5 Alternative Lodge Parks 314-62.5.6 Removal of Emergency Housing Village Sites 314-63 through 314-68 (Sections Reserved for Future Use)

  • Part 2: Structures and Facilities 314-69–98 Alphabetical Listing of Structures and Facilities 314-69.05 Accessory Dwelling Units 314-69.1 Accessory Structures 314-69.2 Airports 314-70 through 314-72 (Sections Reserved for Future Use)

  • 314-73.1 Fences 314-74 (Section Reserved for Future Use)

  • 314-75.1 Guest Houses 314-76 through 314-80 (Sections Reserved for Future Use)

  • 314-81.1 Manufactured Homes and Recreational Vehicles 314-82 through 314-83 (Sections Reserved for Future Use)

  • 314-84.2 Public Utility Buildings 314-85.1 Quasi-Public Structures and Uses 314-86 (Section Reserved for Future Use)

  • 314-87.2 Signs 314-88.1 Temporary Structures 314-89 through 314-90 (Sections Reserved for Future Use)

  • 314-91.2 Wireless Telecommunications Facilities 314-92 through 314-95 (Sections Reserved for Future Use)

  • Part 3: Development Standards

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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  • 314-96 through 314-98 (Sections Reserved for Future Use)

  • 314-99.1 Exceptions to Development Standards 314-100 through 314-101 (Sections Reserved for Future Use)

  • 314-102.1 Height and Size Limitations and Modifications 314-103 through 314-104 (Sections Reserved for Future Use)

  • 314-105.1 Outdoor Lighting 314-106.9 Manufactured Home Park Conversion 314-107.1 Manufactured Home Parks 314-107.2 Merger of Substandard Lots 314-108 (Section Reserved for Future Use)

  • 314-109.1 Off-Street Parking 314-110.1 Parkland Dedication 314-110.2 Plot Plan Approval 314-112.1 Residential Density Bonus and Other Developer Incentives 314-113.1 Special Occupancy Parks Part 4: (Section Reserved for Future Use)

  • Part 5: Nonconforming Uses and Structures 314-131 Nonconforming Uses 314-131.1 Qualification of Nonconforming Use 314-131.2 Regulations Controlling Other Nonconforming Uses

  • 314-132 Nonconforming Structures 314-132.1 Qualification of Nonconforming Structure 314-132.2 Enlargement of Nonconforming Structures 314-132.3 Regulations Controlling Other Nonconforming Structures

  • Section C: Index of Definitions of Language and Legal Terms 314-135 General Rules for Construction of Language 314-136 Definitions (A) 314-137 Definitions (B) 314-138 Definitions (C) 314-139 Definitions (D) 314-140 Definitions (E) 314-141 Definitions (F) 314-142 Definitions (G) 314-143 Definitions (H) 314-144 Definitions (I) 314-145 Definitions (J) 314-146 Definitions (K) 314-147 Definitions (L)

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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314-148
Defnitions (M)
314-149
Defnitions (N)
314-150
Defnitions (O)
314-151
Defnitions (P)
314-152
Defnitions (Q)
314-153
Defnitions (R)
314-154
Defnitions (S)
314-155
Defnitions (T)
314-156
Defnitions (U)
314-157
Defnitions (V)
314-158
Defnitions (W)
314-159 Defnitions (X)
314-160
Defnitions (Y)
314-161
Defnitions (Z)
Section D:
Use Types
Part 1:
Classifcation of Use Types
314-162
Purpose of Use Type Classifcations
314-163
Listing of Use Classifcations
Part 2:
Glossary of Use Types
314-170
Agricultural Use Types
314-170.1
General Agriculture
314-170.2
Intensive Agriculture
314-170.3
Stables and Kennels
314-171
Civic Use Types
314-171.1
Administrative
314-171.2
Community Assembly
314-171.4
Electrical Distribution Lines, Major
314-171.5
Essential Services
314-171.6
Extensive Impact Civic Use
314-171.7
Generation and Distribution Facilities, Minor
314-171.8
Health Care Services
314-171.9
Oil and Gas Pipelines
314-171.10
Public Recreation and Open Space
314-171.11
Solid Waste Disposal
314-171.12
Utilities, Minor
314-172
Commercial Use Types
314-172.1
Automotive Sales, Service and Repair
314-172.2
Repealed by Ord. 2732, § 5, 3/5/2024.

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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  • 314-172.3 Heavy Commercial 314-172.4 Neighborhood Commercial 314-172.5 Office and Professional Services 314-172.6 Private Recreation 314-172.7 Retail Sales 314-172.8 Retail Service 314-172.9 Transient Habitation 314-172.10 Warehousing, Storage and Distribution

  • 314-173 Commercial Timber Use Types 314-173.1 Timber Production

  • 314-174 Extractive Use Types 314-174.1 Surface Mining - 2

  • 314-175 Industrial Use Types 314-175.1 Cottage Industry 314-175.2 Hazardous Industrial 314-175.3 Research/Light Industrial

  • 314-176 Natural Resource Use Types 314-176.1 Fish and Wildlife Habitat Management 314-176.2 Watershed Management 314-176.3 Wetland Restoration

  • 314-177 Residential Use Types 314-177.1 Emergency Shelter 314-177.2 Guest House 314-177.3 Manufactured Home Park Development 314-177.4 Residential Uses Subordinate to the Permitted Use 314-177.5 Accessory Dwelling Unit 314-177.6 Single-Family Residential 314-177.7 Transitional Housing 314-177.8 Supportive Housing

The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

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A

SECTION A: REGULATIONS FOR THE ZONING DISTRICTS

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▸ Contents — Humboldt County Zoning Code
Humboldt County Zoning Code
  1. ▸ Title III
    Overview
    1. ▸ Division 1 — PLANNING
      Overview
      1. Chapter 2 — ADMINISTRATION, PROCEDURES, AMENDMENTS AND ENFORCE…
      2. Chapter 1
      3. Chapter 2
      4. Chapter 3
      5. Part 1 — PRINCIPAL ZONES
      6. Part 2 — SPECIAL AREA COMBINING ZONES
      7. Part 1 — USES AND ACTIVITIES
      8. Part 2 — STRUCTURES AND FACILITIES
      9. Part 3 — DEVELOPMENT STANDARDS
      10. Part 4 — REGULATIONS THAT APPLY IN SENSITIVE HABITATS AND HAZA…
      11. Part 5 — NONCONFORMING USES AND STRUCTURES
      12. Part 1 — CLASSIFICATION OF USE TYPES
      13. ▸ Part 2 — GLOSSARY OF USE TYPES
        Overview
        1. Chapter 4
      14. Part 1 — PRINCIPAL ZONES
      15. Part 2 — REGULATIONS FOR THE COMBINING ZONES
      16. Part 1 — USES AND ACTIVITIES
      17. Part 2 — STRUCTURES AND FACILITIES
      18. Part 3 — DEVELOPMENT STANDARDS
      19. Part 4 — (SECTION RESERVED FOR FUTURE USE)
      20. Part 5 — NONCONFORMING USES AND STRUCTURES
      21. Part 1 — CLASSIFICATION OF USE TYPES
      22. Part 2 — GLOSSARY OF USE TYPES
  2. Title III — LAND USE AND DEVELOPMENT

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