Rocklin's ADU ordinance permits long-term rental of an ADU or JADU to a different party than the primary dwelling. Short-term rentals (under 30 days) of an ADU are also allowed, BUT — under RMC Chapter 17.67 — 'a short-term rental [permit] may not be issued for both a dwelling unit and accessory dwelling unit on the same parcel.' In practice, an owner must choose: STR the main house OR STR the ADU, not both. State law (Cal. Gov. Code §65852.2(a)(6)) prohibits any rental of an ADU for terms shorter than 30 days unless the local code permits it (which Rocklin partially does, subject to the dual-STR ban). Statewide rent cap and just-cause eviction protections under AB 1482 (Cal. Civ. Code §§1947.12 and 1946.2) apply to ADUs in the same way they apply to other residential rentals — single-family ADUs are typically exempt from AB 1482 if the §1947.12(d)(5) notice is given, but exemption is not automatic.
ADU rental rules in Rocklin: (1) Long-term rental — the primary dwelling and ADU 'may be rented to different parties.' (2) Short-term rental — allowed for an ADU only if the primary dwelling is not also short-term rented; only one STR permit per parcel is issued. (3) JADUs may be rented long-term but the owner-occupancy rule (see adu-owner-occupancy) means a JADU on the same parcel as the owner's residence is the only configuration. State preemption: Gov. Code §65852.2(a)(6) bars rentals under 30 days for ADUs unless the local jurisdiction permits, which Rocklin permits with the single-STR-per-parcel limitation. AB 1482 (Civ. Code §1947.12 rent cap of CPI + 5%, max 10%; §1946.2 just-cause eviction) reaches ADUs not built within the last 15 years and not separately alienable single-family units. If a single-family owner provides the §1947.12(d)(5) statutory exemption notice in the lease, the ADU rental is generally exempt; otherwise AB 1482 applies.
Operating two STRs on a parcel containing a primary dwelling and an ADU, or violating Rocklin's separate STR ordinance (Title 17 / Title 5 business license), is enforceable through STR permit revocation, citations, and recovery of taxes/penalties. Violating AB 1482 by issuing a non-conforming rent increase or evicting without just cause exposes the landlord to civil liability under Cal. Civ. Code §1946.2 and §1947.12.
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