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Contra Costa County · Renting & eviction

Mobilehome park rent in Contra Costa County

Contra Costa County's own rules on mobilehome park rent, with the code text for every value.

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Each rule below links to the section of the Contra Costa County Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What Contra Costa County's code says

Contra Costa County code What Contra Costa County's code adds
Annual increase limit
  • Annual increase is the greater of 2% or 75% of the CPI change, capped at 6%.
    § 540-2.404 · code text
    the space rent payable for use or occupancy of any mobilehome space shall not be increased by a park owner within any twelve-month period more than the greater of: (1) Two percent; or (2) Seventy-five percent of the percent change in the Consumer Price Index, provided that no rent increase of more than six percent may be imposed pursuant to this section.
Petitions and pass-throughs
  • A single capital-improvement rent increase, or cumulative ones, may not exceed 5% of the then-existing rent.
    Applies: Applies to capital improvement rent increases.
    § 540-02.408 · code text
    However, in no event may any single rent increase, or any cumulative rent increases under this section exceed five percent of the mobilehome owner's then existing rent.
  • A park owner may apply for a major increase based on capital improvement spending, even above 5% of then-existing rent.
    Applies: Applies instead of the streamlined capital-improvement procedure.
    § 540-02.408 · code text
    Nothing in this section shall preclude a park owner from foregoing the right to seek a rent increase under this section and instead applying for a major rent increase, including applying for a major increase based on capital improvement expenditures that would otherwise result in a rent increase in excess of five percent of the mobilehome owner's then existing rent.
  • Owners' representatives may challenge a capital-improvement increase on only four grounds; the hearing officer may reduce it.
    Applies: Grounds: excessive cost; maintenance cut below level on or after September 20, 1994; interest above private financing; not reasonably related to running the park.
    § 540-2.1210 · code text
    Once the park owner establishes that the required information regarding the park owner's capital improvement proposed rent increase is accurate, the burden shall shift to the mobilehome owners' representative to show that the rent increase is unwarranted or excessive based upon any and only on the following four alternative grounds:
Spaces covered
  • All mobilehome spaces in parks in the unincorporated county are covered, unless otherwise exempt.
    § 540-2.206 · code text
    The space rent increase limitation provisions of this chapter shall apply to all mobilehome spaces in mobilehome parks in the unincorporated area of this county not otherwise exempt from said requirements, either by this section, chapter, or any applicable state or federal law.
  • Exempt: spaces under Civil Code 798.17 agreements, new spaces, separately billed utilities, and spaces under $350 a month.
    Applies: $350 is adjusted yearly for CPI. Parks whose highest rent is below the comparable-park median are exempt once the board adopts that program.
    § 540-2.206 · code text
    Mobilehome spaces covered by rental agreements subject to Civil Code Section 798.17(a) and (b), to newly constructed mobilehome spaces pursuant to Civil Code Section 798.45, or to utilities billed separately pursuant to Civil Code Section 798.41.
  • Spaces with monthly rent below $350, adjusted annually by 100% of the CPI change, are exempt.
    Applies: Applies to exempt spaces.
    § 540-2.206 · code text
    Mobilehome spaces for which the space rent is less than three hundred fifty dollars per month, adjusted annually by one hundred percent of the percent change in the Consumer Price Index.
  • Spaces in parks where the highest space rent is below the median rent in comparable parks are exempt.
    Applies: Applies after the board adopts a program to determine median mobilehome space rents.
    § 540-2.206 · code text
    Mobilehome spaces in mobilehome parks in which the highest space rent charged is less than the median space rent charged for mobilehome spaces in comparable mobilehome parks upon the adoption by the board of supervisors of a program to determine median mobilehome space rents.

Who this affects

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Frequently asked questions

Does Contra Costa County limit rent increases for mobilehome park spaces?

Contra Costa County's code: Annual increase is the greater of 2% or 75% of the CPI change, capped at 6%. (§ 540-2.404); A single capital-improvement rent increase, or cumulative ones, may not exceed 5% of the then-existing rent. (Applies to capital improvement rent increases.) (§ 540-02.408).

General information, not legal advice.

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