ADU Impact Fees: Jurupa Valley vs Riverside
How do adu impact fees rules compare between Jurupa Valley, CA and Riverside, CA?
Jurupa Valley and Riverside have similar restriction levels.
Jurupa Valley, CA
Riverside County
Per Sec. 9.240.290(H)(2)(a)-(b), ADUs less than 750 square feet are exempt from impact fees entirely. ADUs of 750 sq ft or more are charged impact fees proportional to the square footage of the primary dwelling, as required by Cal. Gov. Code Sec. 66314(f). Utility connection fees must also be proportionate to burden per Cal. Gov. Code Sec. 66324.
View full Jurupa Valley rules →Riverside, CA
Riverside County
Per California Government Code §66323 (as amended by SB 543, 2025), Riverside may not charge any development impact, capacity, or connection fee on an ADU of 750 sq ft or less. For ADUs larger than 750 sq ft, the city's impact fees must be charged proportionately to the size of the primary dwelling.
View full Riverside rules →Key Facts Comparison
| Fact | Jurupa Valley | Riverside |
|---|---|---|
| ADUs under 750 sq ft | EXEMPT from all impact fees (Sec. 9.240.290(H)(2)(a)) | - |
| ADUs 750 sq ft or more | Proportional impact fees based on primary dwelling sq ft ratio | - |
| Utility connection | May share with primary; new connection if detached new construction | - |
| Will-serve letter | Required before building permit (JCSD, WMWD, or Rubidoux CSD) | - |
| State authority | Cal. Gov. Code Sec. 66314(f) (impact fees); Sec. 66324 (utility fees) | - |
| School impact fees | Separately governed by Cal. Education Code Sec. 17620; same 750 sq ft exemption | - |
| Impact fees ADU ≤750 sq ft | - | $0 (exempt) |
| Impact fees ADU >750 sq ft | - | Proportional to primary dwelling |
| JADU ≤500 sq ft | - | Exempt from impact fees |
| Plan-check fees | - | Still apply |
| Statutory authority | - | Gov. Code §66323 |
Highlighted rows indicate differences between cities.
Jurupa Valley FAQ
Will I pay impact fees on a 700 sq ft ADU in Jurupa Valley?
No. Sec. 9.240.290(H)(2)(a) exempts all ADUs under 750 sq ft from impact fees, conforming to Cal. Gov. Code Sec. 66314(f).
How are fees calculated for a 900 sq ft ADU?
Impact fees are proportional. If your primary dwelling is 1,800 sq ft and the ADU is 900 sq ft, you pay 50% of the impact fee that would apply to the primary (per Sec. 9.240.290(H)(2)(b) and Cal. Gov. Code Sec. 66314(f)(1)).
Do I need a new water meter for my ADU?
Not if the ADU converts existing space — Sec. 9.240.290(H)(1) allows shared water and sewer connections. New detached construction may require a separate connection subject to a proportionate fee per Cal. Gov. Code Sec. 66324.
Riverside FAQ
Will I pay impact fees on a 700 sq ft Riverside ADU?
No. Under Gov. Code §66323, ADUs 750 sq ft or smaller are exempt from all development impact, connection, and capacity fees citywide.
What about a 1,000 sq ft ADU?
Impact fees are still charged, but must be proportional to the primary dwelling's size. You will still pay separate plan-check and building-permit fees set by Riverside's adopted fee schedule.
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