Shed Rules: Arcata vs Eureka
How do shed rules rules compare between Arcata, CA and Eureka, CA?
Eureka has fewer restrictions than Arcata.
Arcata, CA
Humboldt County
Arcata's Land Use Code Section 9.42.030 governs accessory structures. One portable storage shed per residential lot is exempt from a building permit when consistent with the California Building Code's 120 sq ft / one-story threshold, but it must still meet the setback, height, and parking standards of the underlying zoning district. Section 9.20.030 lists accessory structures as an allowed use.
View full Arcata rules →Eureka, CA
Humboldt County
One-story detached sheds 120 sq ft or smaller are exempt from a Humboldt County building permit under the adopted California Building Code, but they must still meet zoning setbacks and any utilities serving the shed require permits; defensible-space rules also apply on parcels of 1 acre or more.
View full Eureka rules →Key Facts Comparison
| Fact | Arcata | Eureka |
|---|---|---|
| Code Section | Arcata LUC 9.42.030 (Accessory) | - |
| Permit-Exempt Size | 1 portable shed, ≤120 sq ft (CBC) | - |
| Setbacks | Per zoning district (RL/RM/RH) | - |
| Contact | Building Division 707-822-5953 | - |
| Permit-exempt threshold | - | 120 sq ft floor area, one-story, detached, no utilities |
| Code authority | - | Humboldt County Code section 331-11 adopts CBC 105.2; zoning under 314-43; defensible-space under 3115-2 |
| Defensible-space setback (>= 1 acre parcels) | - | 30 ft from property lines and road centerline (20 ft from other buildings, if non-combustible) |
| Utility caveat | - | Any electrical, gas, or plumbing serving the shed requires a trade permit |
| Residential zone restriction | - | No accessory building before the main dwelling is erected and occupied (without a Special Permit) |
Highlighted rows indicate differences between cities.
Arcata FAQ
Do I need a permit for a backyard shed in Arcata?
No, for one pre-manufactured or portable storage shed up to 120 sq ft with no plumbing or electrical, under Arcata Land Use Code Section 9.42.030 and California Building Code exemptions. The shed still must meet your zoning district's setback and height standards.
How many sheds can I have on my Arcata lot?
One portable structure per lot is exempt from a building permit. Additional accessory structures may be approved under LUC 9.42.030 if the zoning district permits them. Contact the Building Division at 707-822-5953 before adding a second structure.
Eureka FAQ
Do I need a permit for a backyard shed in unincorporated Humboldt County?
Not if the shed is one-story, detached, used for tools/storage/playhouse, with 120 sq ft or less of floor area, and no utilities. Anything larger, taller (multi-story), or with any electrical, plumbing, or gas service requires a building permit from the Building Inspection Division (Section 331-11; CBC 105.2).
Can I put a shed on a vacant residential lot before I build the house?
No. Section 314-43 of the Inland Code prohibits any accessory building from being erected on RS, R-1, R-2, R-3, R-4, or Unclassified-Residential-designated land until the main building is erected and occupied, unless a Special Permit is secured first.
How far does my shed have to be from my property line on a rural parcel?
On parcels 1 acre or larger, the Humboldt County Fire Safe Regulations (Section 3115-2) generally require a 30-foot setback from all property lines and from the road centerline, except that a detached accessory building of non-combustible or fire-resistive construction may sit closer if it is at least 20 feet from any other building. Smaller parcels follow the underlying zone's setback rules.
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