Mobilehome parks: rent caps: City of Torrance.

California Legislature, 2025–2026 session

Plain-language summary

A plain-language summary hasn't been written yet. Read the full text at the official source.

Official bill page ↗

Constitutional baseline

AI-drafted, not yet reviewed

What the bill does

AB 1128 amends California Civil Code section 798.30.5 to add mobilehome parks located in the City of Torrance to the state's mobilehome rent cap. The cap limits management to increasing the gross rental rate by the lower of 5 percent or 3 percent plus the percentage change in the cost of living over any 12-month period. That cap already applies to parks located within and governed by two or more incorporated cities. For Torrance parks, the cap would apply to rent increases on or after January 5, 2026, and the amendments would become operative January 1, 2027. For a Torrance park that raised rent above the cap in that window, the rent on January 1, 2027 would be the January 5, 2026 rent plus the maximum permissible increase, and management would not be liable to a homeowner for any corresponding overpayment. The bill keeps existing exemptions (such as income-restricted, student, and resident-owned spaces), leaves local rent ordinances in place, voids waivers of the section's rights, extends the repeal date to January 1, 2036, and adds a legislative finding on why a special statute for Torrance is needed.

Provisions it touches

Article I, Section 10, Clause 1

“Law impairing the Obligation of Contracts”

The cap limits rent increases in existing tenancies, and the bill voids waivers of its terms, so a reader could ask whether it affects obligations under existing rental agreements.

Amendment V

“nor shall private property be taken for public use, without just compensation”

A limit on the rent a park owner may charge, applied from January 5, 2026, raises the question of whether it is a regulation of the use of property or a taking that requires compensation.

Amendment XIV, Section 1

“nor deny to any person within its jurisdiction the equal protection of the laws”

The bill treats Torrance parks, parks in two or more cities, and exempt categories of spaces differently, so classification questions can arise.

Amendment XIV, Section 1

“nor shall any State deprive any person of life, liberty, or property, without due process of law”

Reaching back to rent increases on or after January 5, 2026, and barring recovery of overpayments, bears on due process treatment of retroactive economic rules.

Amendment X

“are reserved to the States respectively, or to the people”

Landlord-tenant rules are traditionally set by states, so the bill falls within the area of reserved state authority, subject to limits found elsewhere in the Constitution.

Where it aligns

The bill is a state statute on residential tenancy terms, a subject not assigned to Congress in the enumerated powers and left to the States under the Tenth Amendment.
The cap applies to rent increases and does not, on the text provided, take title to or physically occupy any park owner's land.
The bill imposes no criminal penalty in the text provided, so it does not on its face raise the ex post facto concerns that apply to penal laws.
The bill keeps existing exemptions and leaves stricter local rent limits in place, which may be relevant to how its burdens are distributed.

Where it may be in tension

Does applying the cap to rent increases made on or after January 5, 2026, before the January 1, 2027 operative date, affect settled expectations enough to raise a due process question about retroactive economic regulation?
Does capping rent in existing tenancies, and voiding waivers of the cap, substantially impair contractual relationships between park owners and homeowners, and if so, is the impairment reasonable and appropriate to a legitimate public purpose?
Could a limit on rent, combined with the lack of any rent adjustment mechanism in the text, be argued to reduce the economic value of park property enough to raise a regulatory taking question?
Does singling out the City of Torrance, together with the categorical exemptions, create classifications that a careful reader could ask to be tied to a legitimate purpose under the Equal Protection Clause?
Does the provision that management is not liable for corresponding rent overpayments leave homeowners without a remedy in a way that raises a fairness or due process question, given that the bill's text does not say what other remedies exist?

Why this might still serve the public

The cap and its retroactive start date depart from the default that private parties set rent by agreement. The bill's findings cite significant and disproportionate rent increases in Torrance and adverse effects on housing affordability for low-income residents and seniors, and the measure may serve the public by limiting displacement of residents who own homes but rent the land beneath them.
The no-liability provision for overpayments for the January 5, 2026 to January 1, 2027 period departs from the ordinary rule that unauthorized charges may be recovered. It may serve the public by giving management a clear, bounded transition rule instead of open-ended refund exposure.

Article V: Not indicated: the bill is an ordinary state statute amending the Civil Code and does not require a change to the text of the Constitution to be carried out as written. Whether it can be carried out without violating existing constitutional limits is a separate question this draft does not resolve.

How different approaches read it

For contested questions only. Each reading is described in its own terms; none is presented as correct.

Does applying a rent cap to existing mobilehome tenancies, from a date before the operative date, and barring recovery of overpayments, conflict with the Contracts Clause, the Takings Clause, or due process?

Original meaning

An original-meaning reading would look at what the Contracts Clause meant to those who adopted it and would ask whether rent limits on existing rental agreements fall within the kind of debtor-relief and contract-impairing laws the clause addressed. It would treat the Takings Clause as focused on physical appropriation of property, and it would ask separately how far the Fourteenth Amendment's reference to due process reaches regulations of economic terms.

Precedent

A precedent-based reading would apply the Court's tests for regulatory takings and contract impairment. It would consider decisions upholding mobilehome and residential rent regulation against takings claims and the multi-factor balancing used for regulatory takings, and it would note that retroactive economic legislation is generally assessed for a rational legislative purpose. Results turn on facts about how the cap affects owners.

Evolving interpretation

An evolving-interpretation reading would weigh the modern housing affordability concerns described in the bill's findings against the owners' investment interests, and would ask whether current understandings of the government's role in protecting residential stability should shape the reach of these clauses. It would give weight to changing social and economic conditions in assessing what is reasonable.

Cases cited

Yee v. City of Escondido, 503 U.S. 519 ↗
Considered a mobilehome park rent control ordinance and rejected a claim that it was a physical taking, while leaving open regulatory takings arguments.
Penn Central Transportation Co. v. New York City, 438 U.S. 104 ↗
Provides the multi-factor test commonly used to assess whether a regulation of property use is a taking.
Energy Reserves Group, Inc. v. Kansas Power & Light Co., 459 U.S. 400 ↗
Sets out the framework for Contracts Clause challenges to state laws affecting private contracts, including the questions of substantial impairment and reasonable means to a legitimate public purpose.
Pennell v. City of San Jose, 485 U.S. 1 ↗
Reviewed a local rent control ordinance against due process, equal protection, and takings arguments.

Each case was found in CourtListener under the same name. Cases that couldn't be verified were removed.

What this analysis can't tell you

This draft relies only on the bill text and the Constitution as provided. It cannot determine the terms of existing park leases, whether a given lease fixes rent for a term, how far the cap would reduce any owner's revenue, or whether the bill leaves owners any means of seeking relief from the cap. The bill's factual claims about rent increases in Torrance are unverified here. It also cannot determine whether Torrance has its own rent ordinance that would interact with the section, or how state constitutional provisions, including the California special-statute requirement cited in the bill's findings, apply, because that text is not provided. Court outcomes turn on facts and record not available here.

Mapped, not ruled: this is not a finding on whether the bill is constitutional. Based on the bill text ↗. Drafted Sep 29, 2026 with claude-sonnet-5-5.
How this is made