6.2 R-1: RESIDENTIAL ONE-FAMILY ZONE

The Residential One-Family or R-l Zone is intended to be applied in areas of the County in which topography, access, utilities and public services make the area suitable and desirable for low density residential development. The following regulations shall apply in all Residential One-Family or R-l Zones. (Former Section INL#314-24; Ord. 1235, Sec. 1, 6/13/78; Amended by Ord. 1738, Sec. 2, 5/20/86; Amended by Ord. 1848, Sec. 10, 9/13/88; Amended by Ord. 1876, Sec. 5, 9/26/89)

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314-6.2 R-1: RESIDENTIAL ONE-FAMILY
Principal Permitted Uses
One (1) family dwelling.
Accessory dwelling unit.
Single-unit supportive housing and transitional housing subject only to restrictions that apply to other
residential dwellings of the same type in the same zone.
Rooming and boarding of not over two (2) persons not employed on the premises.
Keeping of no more than four (4) household pets on each lot.
Uses Permitted With a Use Permit
Guest houses and servants quarters.
Public and private noncommercial recreation facilities, including golf courses.
Manufactured home parks at a density no greater than allowed by the minimum parcel size in the zone or
as may be modified by a combining zone.
Any use not specifically enumerated in this division, if it is similar to and compatible with the uses
permitted in the R-1 Zone.
Other Regulations
Minimum Lot Area 5,000 square feet.
Minimum Lot Width Fifty feet (50').
Maximum Lot Depth Three (3) times lot width.
Minimum Yard Setbacks*
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The Humboldt County Code is current through Ordinance 2784, passed March 10, 2026.

Page 483 of 1183

Title III Land Use and Development | Humboldt County Code

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314-6.2 R-1: RESIDENTIAL ONE-FAMILY
Front Twenty feet (20').
Rear Ten feet (10').
Interior Side Five feet (5').
Exterior Side Same as front or one-half the front if all parts of the main building are
more than twenty-five feet (25') from the rear lot line, and the exterior
side yard does not abut a collector or higher order street. (In
questionable cases, the Public Works Director shall classify the subject
street.)
Double Frontage Lots Front and rear twenty feet (20'), except the rear yard setbacks may be
reduced to ten feet (10') where such yard abuts an alley.
Flag Lots For flag lots, the Director, in consultation with the Public Works
Department, shall establish the minimum yard that is required for a
vehicular turnaround on the lot.
Maximum Ground Coverage Thirty-five percent (35%).
Maximum Building Height Thirty-five feet (35').
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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#314-24(a)(1-3); INL#314-24(b)(1-3); INL#314-24(c)(1-6))