Civil Code § 798.41 lets a manufactured housing community stop bundling a utility into space rent and bill it separately — but only at a price: at the moment of the first separate bill, rent must be simultaneously reduced by the average amount the community itself was charged for that utility, for that space, over the twelve months immediately preceding the notice. Done correctly, the separate utility charge is not “rent” under local rent control. Done wrong — no reduction, a late reduction, an undersized flat reduction — the community is collecting the utility twice, and the entire utility line can be recharacterized as a disguised rent increase.
Subdivision (a): The Election and Its Condition
Where the rental agreement doesn't provide otherwise, management may elect to bill separately for utility fees and charges assessed by the utility for the covered services — a closed list: natural gas or liquid propane gas, electricity, water, cable television, garbage or refuse service, and sewer service. The rent-control safe harbor is conditional: at the initial separate billing, rent must be simultaneously reduced by “the average amount charged to the park management for that utility service for that space during the 12 months immediately preceding notice.” Per space, from actual cost — not a community-wide average, not an estimate.
Subdivision (b): The Pre-1991 Exclusion
The section does not apply to rental agreements entered into before January 1, 1991, until they are extended or renewed on or after that date. Before converting any utility, the agreement vintage of every affected space matters.
Subdivision (d): Separate Statement, Every Bill
Separately billed fees must be separately stated on every monthly or other periodic billing. Charges of limited duration — amortized assessments and the like — must show their expiration date on the initial notice and on every subsequent billing.
The Flat Pass-Through Boundary
§ 798.41(a)'s language — fees and charges assessed by the utility — authorizes passing through what the provider actually charges; it does not authorize inventing fees. The backstops: Civ. Code § 798.31 limits homeowner charges to rent, utilities, and incidental reasonable charges for services actually rendered, and Greening v. Johnson (1997) 53 Cal.App.4th 1223 held a community could not compel every space to pay a flat cable charge regardless of use or consent. A flat line is lawful as a pass-through when it mirrors what the provider actually assesses, the conversion rent reduction was made, and the billed amount never exceeds the assessment.
What Compliant Conversion Looks Like
A conversion file that can be produced on demand: the notice date; the community's own twelve trailing months of utility invoices allocated to the space; the computed monthly average; the rent ledger showing the reduction effective the same period as the first separate bill; and thereafter, each bill separately stating the utility line. Ongoing flat pass-throughs each trace to the provider's actual assessed charge — see rule 13 in the 14 rules guide.
Frequently Asked Questions
Can a mobile home park start charging tenants separately for utilities that used to be included in rent?
Yes — Cal. Civ. Code § 798.41(a) permits it for the listed utilities (natural gas or liquid propane gas, electricity, water, cable television, garbage or refuse service, and sewer service), but only if, at the time of the initial separate billing, rent is simultaneously reduced by the average amount the community itself was charged for that utility for that space over the twelve months immediately preceding the notice.
How is the rent reduction calculated when a utility is converted to separate billing?
By the statute's own words: the reduction equals 'the average amount charged to the park management for that utility service for that space during the 12 months immediately preceding notice' of the separate billing — a per-space trailing average of the community's actual cost, not an estimate of the resident's future bill (Cal. Civ. Code § 798.41(a)).
Does § 798.41 apply to leases signed before 1991?
No — not to rental agreements entered into before January 1, 1991, until they are extended or renewed on or after that date (Cal. Civ. Code § 798.41(b)).
Is a separately billed utility a rent increase under rent control?
Not if done correctly: § 798.41(a) provides that separately billed utility fees are not deemed rent or a rent increase under a local rent control ordinance — but only where the simultaneous rent reduction was made. Miss the reduction and the utility line can be recharacterized as an unauthorized rent increase.
Can a mobile home park bill a flat monthly amount for a utility like trash?
Only as a pass-through of what the service provider actually assesses. § 798.41(a) covers fees and charges assessed by the utility; Cal. Civ. Code § 798.31 limits charges to services actually rendered, and Greening v. Johnson (1997) 53 Cal.App.4th 1223 held a community could not compel every space to pay a flat cable charge regardless of use or consent. A compliant flat line traces to a documented amount actually assessed and never exceeds it.
This page explains the statute in plain English for operators; it is not legal advice. Statutory text verified against the official California Legislative Information site, August 2026.