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San Mateo County · Renting & eviction

Mobilehome park rent in San Mateo County

San Mateo 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 San Mateo County Municipal Code it was read from, with the code text one click away (checked October 2026). General information, not legal advice.

What San Mateo County's code says

San Mateo County code What San Mateo County's code adds
Annual increase limit
  • The lesser of 75% of the percent change in the Consumer Price Index or 5%.
    § 1.30.030 · code text
    Said rent increase shall not exceed seventy-five percent (75%) of the Percent Change in the Consumer Price Index, or five percent, whichever may be less.
How often rent can go up
  • Not more than once in any 12-month period.
    § 1.30.030 · code text
    The rent payable for use or occupancy of any space in a mobilehome park shall not be increased more than once in any twelve (12) month period.
Petitions and pass-throughs
  • Park owner may petition for an increase above the authorized amount if the maximum rent denies a fair return.
    Applies: Fair-return adjustment petition to the Hearing Officer.
    § 1.30.040 · code text
    If a mobilehome park owner believes that the maximum rent permitted by section 1.30.030 of this chapter denies the park owner a fair return, an owner may request an adjustment in rents according to the provisions of this section.
  • Exempt one-time increase above the maximum needs all three conditions; this one: park sale to a nonprofit.
    Applies: All three met, with County's written acknowledgement, and sale closes.
    § 1.30.110 · code text
    The proposed increase in rents are proposed in connection with the sale of the mobilehome park to a non-profit corporation.
  • A one-time increase above the maximum is exempt only if all three conditions are met; this one: qualifying revenue-bond financing.
    Applies: All three conditions met, with the County's written acknowledgement, and the sale must close.
    § 1.30.110 · code text
    The proposed increase in rents are necessary to secure financing for purchase of the park through the issuance of revenue bonds in accordance with chapter 5 of division 31 of the California Health and Safety Code, relating to the financing of multifamily rental housing, including mobilehome parks.
  • Exempt one-time increase above the maximum needs all three conditions; this one: at least two-thirds of tenants petition in writing.
    Applies: All three met, with County's written acknowledgement, and sale closes.
    § 1.30.110 · code text
    A written petition or petitions are submitted by a minimum of two-thirds (2/3) of the mobilehome tenants indicating support for the increase in rents.

Who this affects

TenantsLandlordsProperty managers

Frequently asked questions

Does San Mateo County limit rent increases for mobilehome park spaces?

San Mateo County's code: The lesser of 75% of the percent change in the Consumer Price Index or 5%. (§ 1.30.030); Not more than once in any 12-month period. (§ 1.30.030).

General information, not legal advice.

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