When a manufactured home in a Windsor mobile home park sells and stays on its space, the park can raise the space rent by up to 15%. The buyer starts from that higher base. That rule is in the Windsor ordinance the Town Council adopted on February 1, 2023, and it shapes the purchase more than almost anything on the listing sheet.
The buyer owns the home and rents the land under it. The Press Democrat describes that arrangement for Windsor's four parks, which together hold 569 spaces. So the price on a park home pays for half of what you are buying. The other half is a monthly rent set by a mix of town code, state law and your lease. In Windsor, those rules are under active revision this fall.
The rent you inherit is set at the sale
Windsor's code covers two moments when a park can reset the base rent. One is a "lawful space vacancy," which includes a home being removed from its space or a tenancy ending under the state's Mobilehome Residency Law. In that case the park may set a new base rent. The other is an "in-place transfer," meaning the home is sold and stays on its space. That is the usual resale, and there the increase is limited to 15%.
The ordinance also lists transfers that don't count. No in-place increase applies when someone adds or removes a co-owner and keeps living in the home. It also doesn't apply when the home passes to someone who already lived in it, or who lived on another space in the same park. An outside buyer usually falls outside those exceptions.
Here is an illustration with round numbers. These are not real Windsor rents.
| Scenario | Seller's current space rent | Allowed in-place increase | Highest possible starting rent for the buyer |
|---|---|---|---|
| Hypothetical space A | $800 a month | up to 15% | $920 a month |
| Hypothetical space B | $1,000 a month | up to 15% | $1,150 a month |
The rent on the seller's last statement is where the math starts. Once the sale closes, the park may lawfully charge more. A buyer budgeting off the seller's figure is budgeting off the wrong number.
After the reset, a cap takes over
Once the new base is set, Windsor limits yearly increases. In any 12-month period, space rent can rise by no more than 75% of the percentage change in the Consumer Price Index or 4%, whichever is less. The 2023 amendment lowered the ceiling from 6% to 4%.
In practice, if the CPI rose 3%, the cap would be 2.25%. If the CPI rose 6%, 75% of that is 4.5%, so the 4% ceiling applies.
The same section exempts leases covered by California Civil Code section 798.17. The state housing department's mobilehome FAQ explains that certain leases longer than 12 months can be exempt from local rent control. The exemption isn't automatic for every long lease, so whether a particular lease qualifies matters. A buyer offered a multi-year lease at signing is looking at a document that may decide whether the town's cap applies to them at all.
Why the rent rules end up in the home's price
The home and the space are tied together, and that changes how the price works. A cap on yearly increases means a lower future rent comes with the home. The park's right to reset rent at sale keeps part of that advantage with the park. Since the home itself stays put, it makes sense that buyers would price in both rules.
That is our reading of how the pieces fit, not a finding from a local study. It does explain why two homes that look alike on paper can make very different sense on a monthly budget. The rent history of the space, the type of lease and the size of the transfer increase all belong next to the asking price.
Mobile homes can also move. Civil Code section 798.73 generally keeps a park from requiring that a home be removed just because it is being sold, with limited exceptions tied to the home's age, safety and condition. In a resale the home usually stays put, which is why the in-place transfer rule matters so much.
Windsor is rewriting these rules this fall
Windsor's rules are in motion right now. In June 2025, the owners of Evergreen Mobile Estates on Old Redwood Highway, a small park with just under two dozen homes, told residents that space rents would rise by more than 125%. After the proposal went to arbitration, monthly rent went up by $4.15, according to The Press Democrat. The owners asked the town about closing the park but didn't file a formal application.
The Town Council's response has unfolded in steps:
- October 2025: an urgency ordinance paused park closures and conversions for 45 days.
- November 2025: the council unanimously extended the pause, which The Press Democrat reported would give staff time to update the town's 30-year-old mobile home ordinance. The extension ran until September 20, 2026.
- February 2026: The Press Democrat reported that a U.S. District Court judge dismissed the park owners' federal suit against the moratorium in favor of the town. According to the same report, the owners appealed to the 9th Circuit, where the case is still pending.
- Early September 2026: the council voted 4-0 to extend the pause for up to 12 more months.
Town Planner Jennifer Sedna said the town's closure and conversion code predates newer state standards. She also said the general plan designates the parks for mobile homes while the zoning code allows other residential uses on the same land. Residents working with the North Bay Organizing Project and Legal Aid of Sonoma County want several changes:
- a zoning designation just for manufactured home parks
- revised closure and conversion procedures
- a stronger rent stabilization ordinance
- clearer arbitration rules
No date has been set for the amendments to reach the council.
For a buyer this fall, that means the 15% transfer rule and the CPI cap described above are the rules in force today, as far as the public record shows. They are also part of a code the town is actively rewriting. An offer written in October 2026 may close under the same rules. A lease renewal two years from now may not.
How the paperwork moves
A park-home sale follows a different path from a house sale. These are the main steps under California law:
- Park approval of the buyer. Under Civil Code section 798.74, which was amended effective January 1, 2026, management may require approval of a buyer whose home will stay in the park. The seller notifies management before close. Management then has 15 days to supply its approval criteria and the documents it needs.
- A limited set of reasons for denial. The statute lists them, including inability to pay park charges, likely noncompliance based on past tenancies, and fraud or concealment. Management must respond within 15 business days of receiving the requested information. If it doesn't respond, the buyer is treated as approved.
- Disclosures. The buyer is entitled to the seller's disclosure of the home's condition. The buyer is also entitled to information from the park about rents and fees for new homeowners and about park conditions, under sections 798.74.4, 798.74.5 and 798.75.5.
- Title transfer. The California Department of Housing and Community Development uses different transfer forms depending on how the home is registered and taxed. Health and Safety Code section 18100.5 requires notice to HCD within 20 days of a transfer of a registered owner's title.
- Tax status. The California Board of Equalization explains that homes first bought new on or after July 1, 1980 are generally on local property tax. Older homes may instead pay an in-lieu license fee through HCD. For a home on property tax, the sale sets a new base-year value that leaves out the value of the rented site.
- Financing. HUD treats financing for the home alone differently from financing for a home and its lot. A 2021 report from the Consumer Financial Protection Bureau links homes on land the owner doesn't hold with personal-property, or chattel, lending rather than a standard mortgage.
Step six changes the lender conversation. The pre-approval steps in our Windsor first-time buyer guide assume a conventional home loan, and a park home may call for a different kind of lender.
The Press Democrat also reported that half of Windsor's parks, holding 80% of the spaces, are restricted to seniors. Eligibility rules vary from park to park, so they are part of the park's approval criteria.
Why Windsor's sales averages mislead here
BAREIS, the regional MLS, counts mobile and floating homes in the same "residential" category as single-family homes, condos and ranches. In September 2025, Windsor's average residential sale price was $1,006,588 across 16 sales. In September 2026, it was $744,827 across 15 sales. Over the same two Septembers, the countywide median sale price rose from $740,000 to $779,500.
The public report doesn't break Windsor sales out by property type, so it can't show which homes moved that average. With about 15 sales, a few lower-priced homes of any type can shift the result a lot. A park home's sale price also doesn't include the land, so averaging it in with houses mixes two different things. To compare a park home with a condo or a small house, add the space rent to the price.
A few common questions
Can the park require me to move the home off the space because I bought it? Civil Code section 798.73 generally bars requiring removal just because a home is sold. The exceptions relate to the home's age, safety and condition.
What happens if the park never answers my application? Under section 798.74, if management fails to respond within 15 business days of receiving the requested information, the buyer is treated as approved.
Does Windsor's 4% cap apply to every lease? No. Leases that qualify under Civil Code section 798.17 are exempt, and HCD notes that a long lease doesn't qualify automatically.
If you're weighing a manufactured home in one of Windsor's parks, Apryl Lopez can help you get the space's rent history, the park's approval criteria and the proposed lease in front of you before you write an offer. That way the monthly cost you plan around matches the one you'll actually pay. Reach out through the contact page to start with the rules in force today.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.
