Rialto, CA Rental Property Rules: Rent Control (2026)

01 of the Rialto Municipal Code creates a Mobile Home Rent Review Commission, staffed by the city's planning commission, to police space rent in the city's mobile home parks. The chapter grew out of council findings that park owners hold a captive market: mobile homes are expensive to relocate, vacant spaces are scarce, and many owners are seniors or people on fixed incomes who cannot absorb steep increases. RMC Sec. 060(A) bars a park owner from demanding, accepting, or retaining space rent above the amount in effect on the chapter's effective date except as the chapter allows, and it makes any increase unenforceable until the parties reach an informal agreement, finish mediation, or the commission issues a final decision after a full hearing.

RMC Sec. 060(B)(4) limits owners to one increase per twelve-month period. When a dispute reaches the commission, RMC Sec. 065(B) directs it to weigh factors including the park's net operating income, capital improvements, changes in property taxes and utility costs, the Consumer Price Index, and rents at comparable Rialto parks, with the park owner carrying the burden of proof by a preponderance of the evidence. Park owners also pay an annual per-space user fee, due by June 1st under RMC Sec. 130, and cannot pass through more than the first $25 of that fee to residents without council approval.

This regulation applies only to mobile home space rent; the chapter does not touch rent for houses, apartments, or condominiums, which the code leaves to state law and market rates.