Hacienda Tp: mobile home park in Castro Valley, California
Unofficial page — independent directory built from the California state registry, updated August 2026.
Run this park? Correct anything on this page free — no card, no account.
A 28-space mobile home park in Castro Valley, CA. Everyday shopping is within a couple of miles.
Working from home is realistic nearby — roughly 100% of homes report broadband at 100/20 Mbps or better, gigabit reaching a real share of homes. Zone X on FEMA's map keeps this park outside the special flood hazard area, for whatever that's worth against a map that gets redrawn.
A county ordinance regulates rent increases in unincorporated Alameda County; confirm with local officials whether that reach extends to this particular park. 28 spaces make this a mid-sized mobilehome park as these things go, though the registry doesn't report current vacancies.
- Size
- 28 spaces · 38th largest of 53 in Alameda County (median 52)
- Size vs the state
- Larger than about 28% of California's registered parks
- Rent increases
- 4% Cap (Alameda County ordinance — unincorporated areas only) · read it
- Rent nearby
- 2-bedroom fair market rent $2,912/mo (HUD FY 2026)
- Flood zone
- N/A — outside the mapped floodplain
- Wildfire risk
- Higher than 97% of U.S. counties (USFS, county-wide)
- Tornadoes
- 3 recorded in Alameda County since 1950, strongest F0 (NOAA)
- Nearest
- Grocery 0.1 mi · pharmacy 0.1 mi · clinic 0.4 mi
- School & ER
- Marshall Elementary 0.3 mi · Eden Medical Center (ER) 1.1 mi
- Internet
- 100% of homes at 100/20 Mbps · fiber 65% · gigabit 91%
- Neighborhood
- Median rent $2,506/mo · median income $125,000 · 1% mobile homes
Distances are straight-line, so the drive is longer. Internet and neighborhood figures describe the surrounding town — and the rent benchmark, wildfire rank, and tornado count the wider county — not this park’s own lots. The fair market rent is apartment-style rent (HUD’s area benchmark), not this park’s lot rent. Rent limits are not legal advice.
Looking for the office number? Their Google Maps listing may have it →
Worth knowing
Castro Valley is a rural community about 10 miles northwest of Fremont (about 230,000 people). 41 other registered parks lie within about 10 miles.
For residents
- Water billing: if your park submeters water, California bills it at the utility's rate with combined service and admin fees capped (AB 604) — no markup on the water itself. Check the math free with the water submeter calculator, or read the California water-billing guide.
- Paying rent: ask the park office how they take payment. Parks that run on Lot Sidekick hand residents clear, itemized rent and water bills.
- Thinking about moving here? What to ask a park before you rent a lot, and what lot rent covers and how it goes up.
Common questions
How many spaces does Hacienda Tp have?
Hacienda Tp has 28 total spaces per the California park registry (as of August 24, 2026).
Is this Hacienda Tp's official website or phone number?
No. This is Hacienda Tp's page in the Lot Sidekick park directory, built from the state registry. We're independent of the park and can't take messages for it. The park office hasn't added a public contact here yet; if you own the park, claiming the page (free) lets you add one.
Where is Hacienda Tp?
3784 Castro Valley Blvd, Castro Valley, California 94546, in Alameda County.
How much is lot rent at Hacienda Tp?
Hacienda Tp doesn't publish its lot rent anywhere we could find, and we won't guess at a figure. Call the park office to ask. For scale: HUD's FY 2026 fair market rent for a 2-bedroom rental around Alameda County is $2,912/mo — that's apartment-style rent for the area, and lot rent (the ground under a home you own) usually runs well below it. If you run this park, you can add your real lot rent to this page for free.
How much can lot rent go up at Hacienda Tp?
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.
Nearby parks in Alameda County
| Park | Distance | Spaces |
|---|---|---|
| Chetwood Crest MHP | ~0.2 mi | 86 |
| Wagon Wheel MHP | ~0.2 mi | 53 |
| Vaughns Tp | ~0.2 mi | 25 |
| Avalon Mobile Home Park | ~0.3 mi | 49 |
| Wishing Well MHP | ~0.3 mi | 35 |
Free tools
- Park value & profitability estimator: what a 28-space park earns and what it's worth, at the cap rate you pick.
- Rent increase calculator: the 2026 California cap applied to a 28-space park.
- RUBS calculator: split one master-meter water bill across 28 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.
- Rent receipt generator: a printable receipt for a cash, check, or money-order payment — two copies to a sheet.
- Prorated rent calculator: the exact first-month charge when someone moves in mid-cycle.
Registry record
| State registry ID | 6285 |
|---|---|
| Registered with | The California Department of Housing and Community Development |
| Listed as | HACIENDA TP |
Data from official state registry that may be out of date.
Source: California Department of Housing and Community Development, Permit to Operate registry (gis.hcd.ca.gov), as of August 24, 2026. Counts come from the state's registry and can lag real life. See something out of date? Tell us, or claim the page.
https://lotsidekick.com/parks/california/alameda/hacienda-tp