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Local code · Santa Cruz County

Santa Cruz County — Mobile Home Park Rent Adjustment

The Santa Cruz County Mobile Home Park Rent Adjustment, explained in plain English with the controlling citations.

Quick answer

In unincorporated Santa Cruz County, a mobile home park owner may make only one general rent adjustment each calendar year, on or after the resident’s anniversary date, and must give a calculation-based notice 90 days before it takes effect. § 13.32.030(A)–(F) Eligible capital-improvement costs are generally limited to a 50% pass-through amortized over 120 months. § 13.32.030(D)(5)(g)

Last reviewed: September 20, 2026 · AI-generated analysis · General information, not legal advice · details

Compiled from Santa Cruz County's adopted code with AI research tools and grounded in the sources cited below. Verify with Santa Cruz County planning staff before relying on it.

Overview

Santa Cruz County Code Chapter 13.32, the “mobile home rent adjustment ordinance,” regulates space-rent adjustments in unincorporated areas of Santa Cruz County. Its purpose is to protect mobile-home residents from unreasonable increases and assessments while allowing park owners a just and reasonable return. § 13.32.010

A park owner may make a general rent adjustment once per calendar year, only on or after the resident’s anniversary date, using the Chapter 13.32 calculation and notice rules. § 13.32.030(A)–(C), (F)

This chapter is a rent-adjustment ordinance, not a land-use ordinance. Questions about whether a park or improvement is allowed under Santa Cruz County zoning & planning overview, Santa Cruz County Zoning, or Santa Cruz County Land Use are outside Chapter 13.32.

Applicability and Key Definitions

A mobile home park is land with two or more mobile-home sites rented or held out for rent for human habitation. A mobile home space is a bounded, numbered, designated area occupied by one qualifying residence. § 13.32.020

The ordinance’s rent definition is broad. It includes periodic payments and nonmonetary consideration, including amounts charged for parking, pets, furniture, or subletting; it also addresses certain owner utility charges. § 13.32.020

An anniversary date is the single annual day on which a resident’s rent may be adjusted. The owner must disclose it when the rental agreement is signed, and a park may have no more than one anniversary date. § 13.32.020

Decision point Chapter 13.32 rule Code Reference
General increase timing Once each calendar year, on or after the resident’s anniversary date § 13.32.030(A)–(B)
General-adjustment notice Written notice using the required form, mailed 90 days before the increase takes effect § 13.32.030(F)
CPI component Up to 50% of the percentage change in the San Francisco-Oakland CPI, multiplied by adjusted base rent § 13.32.030(D)(3)
Capital cost pass-through Up to 50% of eligible net costs, ordinarily amortized over 120 months § 13.32.030(D)(5)(g)
Aggregate capital pass-through Cannot exceed 10% of monthly rent without approval by residents of 50% plus one of spaces § 13.32.030(D)(5)(h)
New spaces Initial rent for spaces constructed on or after January 1, 1983 is not regulated; later adjustments are regulated § 13.32.100

District-by-District Scope

No Chapter 13.32 Zoning Districts

Chapter 13.32 does not establish R-1, commercial, agricultural, coastal, overlay, or other zoning districts. It contains no district-specific permitted-use list, lot-area rule, setback, height limit, FAR, parking ratio, or design-review threshold.

Accordingly, district-by-district development standards are not found in source materials for this rent-adjustment chapter. Parcel-specific questions about Santa Cruz County Development Standards, Santa Cruz County Design Review, or Santa Cruz County Overlay Districts should be verified with the jurisdiction.

General Rent Adjustments

The maximum allowable increase is the amount by which the calculated base rent plus permitted adjustments differs from the resident’s current monthly rent. An owner cannot charge more than that general-adjustment amount unless another Chapter 13.32 procedure expressly permits it. § 13.32.030(C), (G)

Permitted general-adjustment components include:

  • Property-tax changes: The difference between taxes payable for calendar year 1981 and taxes payable for the calendar year before the current anniversary date may be allocated per space. § 13.32.030(D)(2)
  • CPI: The owner may add no more than 50% of the specified CPI percentage change, multiplied by base rent. § 13.32.030(D)(3)
  • Capital-improvement return: A reasonable return may apply to qualifying capital improvements at the Board of Supervisors’ annually established rate. The return begins when the improvement is operational and available for residents and ends with the applicable amortization period. § 13.32.030(D)(4)
  • Government-required service charges: Legally imposed and actually billed governmental fees, bonds, and assessments may be allocated per space to the extent they are not reimbursed. Ordinary common-area utility costs are excluded. § 13.32.030(D)(6)
  • Space fee: The owner may pass through the space fee established under the chapter. § 13.32.030(D)(7)

A reduction or elimination of services requires a corresponding rent reduction equal to the resulting cost savings; that savings is subtracted from base rent. § 13.32.030(D)(1)

Capital Improvements and Pass-Throughs

A qualifying capital improvement is new construction or replacement of an old improvement, not routine maintenance or repair. It must primarily benefit most residents, serve a functional resident purpose, have a life expectancy of at least five years, be treated as a capital asset for tax purposes, and be permanently fixed or relatively immobile. § 13.32.020; § 13.32.030(D)(5)(a)–(f)

Eligible examples can include a clubhouse, laundry or common-area facility, pool, street, driveway, gate, common-area lighting, retaining wall, utility infrastructure, sprinkler system, or comparable upgrade primarily benefiting residents. Routine patching, seal coats, slurry seals, landscaping maintenance, and ordinary repairs do not qualify. § 13.32.030(D)(5)(c), (j)

Only 50% of actual net eligible capital cost may be passed through. The ordinary formula divides that portion by affected spaces and then by 120 months; the charge begins at each affected resident’s first anniversary date after the improvement becomes operational and available. § 13.32.030(D)(5)(g)

A single project exceeding 5% of current monthly rent, excluding capital pass-throughs, requires approval by residents of 50% plus one of park spaces. The combined capital pass-through may not exceed 10% without the same approval, and no more than one over-5% project may be passed through in a 12-month period. § 13.32.030(D)(5)(h)

For a required vote, each affected space receives one written ballot. The ballot must identify the improvement and monthly charge’s beginning and ending dates, be mailed first class, and allow at least 20 days after postmark to vote. § 13.32.030(D)(5)(i)

Charges That Cannot Be Shifted

Debt-service costs and interest from borrowing or refinancing cannot be passed through. § 13.32.030(D)(8)

Maintenance and repair costs cannot be passed through as capital improvements. Replacement costs also cannot be passed through when replacement was required because the owner failed to maintain common facilities in working order. Insured repairs and replacements are likewise not capital improvements. § 13.32.030(D)(5)(c)–(e)

A utility readiness-to-serve charge may be passed through only at the same rate the utility charges a comparable customer class, and only if eligible residents receive the lifeline discount they would receive as direct utility customers. § 13.32.030(D)(9)

Notice, Records, and Resident Review

A general-adjustment notice must use the Chapter 13.32 form and show the dollar figures and calculations producing the final rent computation. A notice not on that form is invalid. § 13.32.030(E)–(F)

The owner must provide residents 90 days’ written notice before the general adjustment takes effect. § 13.32.030(F)

Within five business days after a resident’s written request, the owner must make available relevant property-tax bills, government-charge bills, insurance information, and capital-improvement cost and depreciation records. § 13.32.030(H)

The required notice states that residents representing at least 25% of park spaces may challenge all or part of the adjustment by filing a petition with the Mobilehome Commission within 45 days after the notice’s postmark. The notice also encourages residents and owners to meet and confer first. § 13.32.030(F)

Special Rent Adjustments

An owner seeking more than the general-adjustment formula allows may petition a Hearing Officer for a special rent adjustment based on a claim that the general procedure does not provide a just and reasonable return. § 13.32.040(A)

The special-adjustment framework uses net operating income—gross income less operating expenses—and generally treats 1979 as the base year. Base-year net operating income is rebuttably presumed to have provided a just and reasonable return. § 13.32.040(B)(1), (4), (C)

The chapter identifies both allowable and excluded operating expenses. Mortgage principal and interest, depreciation, avoidable expense increases, penalties, reimbursed expenses, and most legal fees are excluded. § 13.32.040(B)(3)(i)

Ownership Transfers and New or Long-Term Spaces

Sale or other lawful transfer of a mobile home does not reset the maximum rent. The same protection applies to replacement of the home, subject to the limited exception for prior individualized concessions not generally available to comparable residents. § 13.32.070(A)–(B)

For a space constructed on or after January 1, 1983, Chapter 13.32 does not regulate the initial rent. Later rent adjustments are regulated, and the first occupancy year is the base year. § 13.32.100

A recreational-vehicle or trailer-park space is covered if residents have continuously lived there for nine months or more after January 1, 1980. Its base rent is the rent charged on January 1, 1999. § 13.32.102

Administration and Posting

The Mobile and Manufactured Home Commission annually recommends a reasonable capital-improvement return rate after at least one public hearing. The Board of Supervisors acts by November 1 for a rate effective the following January 1; an owner seeking that rate must submit supporting data by July 1. § 13.32.092

Park owners must permanently post Chapter 13.32 and printed public notices in the park office or another public-access location. They must also report changes in ownership, management representatives, and coach-space count to designated County staff as they occur. § 13.32.090

Checklist

  • Confirm the park and space are within the unincorporated areas of Santa Cruz County and meet the chapter’s mobile-home-park definitions. § 13.32.010; § 13.32.020
  • Identify the resident’s disclosed anniversary date and ensure only one general adjustment is made in the calendar year. § 13.32.020; § 13.32.030(A)–(B)
  • Calculate the adjustment from base rent using only permitted components. § 13.32.020; § 13.32.030(C)–(D)
  • Reduce base rent for any service reduction or elimination by the documented cost savings. § 13.32.030(D)(1)
  • Confirm any capital project satisfies the eligibility, voting, amortization, and percentage-limit rules. § 13.32.030(D)(5)
  • Use the mandatory notice form, include calculations, and mail it at least 90 days before the increase takes effect. § 13.32.030(E)–(F)
  • Make required supporting records available within five business days of a written resident request. § 13.32.030(H)
  • Preserve rent protections upon sale, transfer, or replacement of a mobile home. § 13.32.070

Risks & Ambiguities

Issue Why it matters What to verify
Jurisdiction Chapter 13.32 is directed to the County’s unincorporated areas, not incorporated cities within Santa Cruz County. Verify the park’s location and governing jurisdiction. § 13.32.010
Capital work versus maintenance Routine repair cannot be passed through, while a qualifying replacement or new improvement may be. Verify tax treatment, useful life, resident benefit, maintenance history, and project scope. § 13.32.030(D)(5)
Utility charges Readiness-to-serve charges have a limited pass-through rule. Verify the comparable utility rate and eligible lifeline discount. § 13.32.030(D)(9)
Resident vote Over-threshold capital pass-throughs need resident approval. Verify affected-space count, ballot content, mailing, deadline, and vote total. § 13.32.030(D)(5)(h)–(i)
Special adjustment The general formula may not be the owner’s only available route. Verify the Hearing Officer procedure and applicable income-and-expense evidence. § 13.32.040
Zoning or construction work Chapter 13.32 does not establish construction approvals, California Building Standards Code compliance, or California ADU law rules. Verify with the jurisdiction; not found in source materials.

Plain-English Summary

If you own a mobile home in a covered unincorporated County park, the park owner generally cannot simply choose a new space rent. The owner must use the chapter’s formula, give a detailed 90-day notice, and support charges such as taxes or qualifying capital work; selling or replacing your home normally does not erase the protected maximum rent. § 13.32.030; § 13.32.070

Source References

  • Santa Cruz County Code, Mobile Home Rent Adjustment Ordinance — § 13.32.010
  • Santa Cruz County Code, definitions — § 13.32.020
  • Santa Cruz County Code, general rent adjustments, notice, records, and capital pass-throughs — § 13.32.030
  • Santa Cruz County Code, special rent adjustments — § 13.32.040
  • Santa Cruz County Code, transfers of ownership — § 13.32.070
  • Santa Cruz County Code, annual capital-return recommendation and Board action — § 13.32.092
  • Santa Cruz County Code, ordinance posting — § 13.32.090
  • Santa Cruz County Code, new spaces and RV/trailer spaces — § 13.32.100; § 13.32.102
  • Santa Cruz County Code, severability — § 13.32.120

Sources

Source passages

  • Santa Cruz County Zoning Code § 13.32.030 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.010 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.092 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.100 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.090 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.020 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.120 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.040 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.102 Medium relevance
  • Santa Cruz County Zoning Code § 13.32.070 Medium relevance

Cited sections

Frequently asked questions

How often can a mobile home park raise rent in unincorporated Santa Cruz County?

A park owner may make a general rent adjustment only once each calendar year and only on or after the resident’s anniversary date. The adjustment must follow Chapter 13.32’s base-rent formula and notice requirements. § 13.32.030(A)–(C), (G)

How much notice is required for a Santa Cruz County mobile home park rent increase?

The owner must provide written notice 90 days before a general rent adjustment takes effect. The notice must use the chapter’s required form and show the calculations supporting the proposed rent; another form is invalid. § 13.32.030(E)–(F)

Can a Santa Cruz County mobile home park pass capital-improvement costs through to residents?

Yes, but only 50% of actual net costs for a qualifying capital improvement may be passed through. The project must primarily benefit residents, generally have at least a five-year life expectancy, and cannot be routine maintenance or repair. § 13.32.030(D)(5)(a)–(g)

Does a park owner need resident approval for a capital-improvement rent pass-through?

Approval by residents of 50% plus one of park spaces is required for a single pass-through above 5% of monthly rent and for aggregate capital pass-throughs above 10%. Ballots must be mailed first class and allow at least 20 days after postmark for voting. § 13.32.030(D)(5)(h)–(i)

Can a Santa Cruz County mobile home park charge residents for routine maintenance?

Routine maintenance and repair are not qualifying capital improvements and cannot be passed through under the capital-improvement rule. That includes work such as patching, seal coats, slurry seals, landscaping maintenance, and ordinary repairs. § 13.32.030(D)(5)(c), (j)

Can rent increase when a mobile home is sold in an unincorporated Santa Cruz County park?

Generally, no. The maximum rent is not modified merely because the mobile home is sold, otherwise lawfully transferred, or replaced; subsequent adjustments remain governed by Chapter 13.32. § 13.32.070(A)–(B)

Can residents challenge a Santa Cruz County mobile home park rent adjustment?

The required general-adjustment notice states that residents representing at least 25% of park spaces may petition the Mobilehome Commission within 45 days after the notice is postmarked. The notice also encourages owners and residents to meet and confer before filing. § 13.32.030(F)

Are new mobile home park spaces covered by Santa Cruz County rent adjustment rules?

For spaces constructed on or after January 1, 1983, the initial rent is not regulated by Chapter 13.32. Later rent adjustments are subject to the chapter, with the first occupancy year serving as the base year. § 13.32.100

General information, not legal advice.

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