The mobile home park market in Sonoma County, California
88 registered parks, 8,115 spaces — what's here, how big it is, and what it's worth. Built from the the California Department of Housing and Community Development registry, not from listings.
- 88Registered parks
- 8,115Total spaces
- 66Median park size
- 4510–100 spaces
We don't sell parks and we don't have listings. This page is the registry data a buyer usually can't get in one place — park count, size mix, and the rent rules that cap your upside. For what's actually on the market, you still need a broker or a direct-mail campaign.
Park sizes in Sonoma County
Size decides almost everything about a small park deal: what it costs, whether a lender will touch it, and whether you can run it yourself. 45 of 88 fall in the 10–100 space band most first-time buyers target.
| Under 10 spaces | 11 parks |
|---|---|
| 10–30 spaces | 14 parks |
| 31–60 spaces | 18 parks |
| 61–100 spaces | 13 parks |
| 101–150 spaces | 13 parks |
| Over 150 spaces | 19 parks |
What a park this size earns
A park is priced on its income, not on the land. Take the rent it actually collects, subtract operating expenses to get net operating income, and divide by the cap rate buyers accept locally. At the median 66-space park here, every $25/month of lot rent across every lot is roughly $19,800 a year of gross rent — and at a 7% cap rate, a dollar of NOI is worth about $14 of value.
Run the numbers on a 66-space park
Before you underwrite anything here, check what the law lets you do with rent: the California rent-increase calculator applies the 2026 rules to a park this size, and what other owners run their books on is worth knowing before you inherit someone's spreadsheet.
Rent rules that apply here
California has no statewide cap on space-rent increases, but the Mobilehome Residency Law requires 90 days' written notice (Civil Code §798.30), and many California cities add local rent-stabilization ordinances — check your city before assuming there's no cap.
The largest parks in Sonoma County
- Windsor Mobile Country Club — 334 spaces, Windsor
- Rancho Grande MH Community — 308 spaces, Rohnert Park
- Rancho Verde MHP — 300 spaces, Rohnert Park
- Rancho Feliz Mobile Home Park — 297 spaces, Rohnert Park
- Seven Flags of Sonoma — 292 spaces, Temelec
- Valley Village Mobile Estates — 285 spaces, Rohnert Park
- Moon Valley MHP — 247 spaces
- The Orchard — 233 spaces, Santa Rosa
See all 88 parks in Sonoma County →
Common questions
How many mobile home parks are in Sonoma County?
88 parks are registered with the California Department of Housing and Community Development in Sonoma County, California, holding 8,115 spaces between them. That's the registry count as of July 22, 2026 — it counts licensed parks, not parks currently for sale.
What size are the parks in Sonoma County?
The median registered park here has 66 spaces, and 45 of 88 sit in the 10-to-100-space band that small buyers typically target — big enough to cover debt service, small enough to run without on-site staff.
How much can lot rent be raised in California?
California has no statewide cap on space-rent increases, but the Mobilehome Residency Law requires 90 days' written notice (Civil Code §798.30), and many California cities add local rent-stabilization ordinances — check your city before assuming there's no cap.
Does Lot Sidekick list parks for sale in Sonoma County?
No. This is a directory built from the California state registry, not a brokerage — we don't have listings and we don't take a commission. What's here is the market context you'd want before you go looking: how many parks exist, how big they are, and what the rent rules allow.
Free tools
- Park value & profitability estimator: what the park earns and what it's worth, at the cap rate you pick.
- Rent increase calculator: the 2026 California rules applied to your park.
- RUBS calculator: split one master-meter water bill across your lots so the pennies add up exactly.
- Water submeter calculator: two meter reads in, an at-cost tenant bill out.
- Notice generator: a clean, printable rent-increase notice with the dates filled in.
- Prorated rent calculator: the exact first-month charge when someone moves in mid-cycle.
Source: California Department of Housing and Community Development mobilehome parks registry (gis.hcd.ca.gov), as of July 22, 2026. Counts come from the state's registry and can lag real life. See something out of date? Tell us, or claim the page.