🏡 Who Has Jurisdiction in Tri Palms Estates
Tri Palms is unincorporated Riverside County, so all awning/carport/patio‑cover permits go through:
Riverside County Building & Safety – TLMA
They handle:
• Manufactured home permits
• Patio covers
• Carports
• Accessory structures
This matches your work as a licensed contractor doing retrofit foundations and accessory structures.

📌 What Type of Permit You Need for an Awning
For a manufactured home in Riverside County, awnings fall under:
1. Patio Cover / Awning Permit (County)
This is the standard building permit for:
• Aluminum awnings
• Carports
• Covered porches
• Attached or freestanding patio covers

But why now after the home has been here for nearly 50 years?

Most of the awnings in Tri Palms Estates from the late‑70s through the early‑90s being unpermitted is completely consistent with how California mobilehome parks were regulated at the time, and it creates a very specific situation today for contractors, homeowners, and lenders.

Why so many awnings from 1977–1990 have no permits
Three overlapping factors created this:
🟫 1. Pre‑1994 HCD enforcement was extremely loose
Before the mid‑90s, HCD did not consistently enforce Title 25 accessory‑structure rules in parks. Many parks self‑regulated, and managers often allowed:
• Aluminum awnings
• Carports
• Screen rooms
• Storage sheds
…to be installed without formal state or county permits.
🟫 2. Parks treated awnings as “park improvements,” not building work
Park management often approved awnings internally and never required:
• SPA plan sets
• Engineering
• County review
• HCD permits
This was common statewide, not just in Riverside County.
🟫 3. Riverside County did not take jurisdiction inside parks
Riverside County Building & Safety historically left accessory structures in mobilehome parks to HCD. Because HCD wasn’t enforcing consistently, thousands of structures went up with no paperwork.

What this means today for Tri Palms Estates
Homes from that era almost always have:
• Awnings with no permits
• Carports with no permits
• Add‑on rooms with no permits
• Footings that don’t match any SPA
• Attachments that violate current Title 25 §1468 requirements
This becomes a problem when:
• A home is being sold
• A lender requires compliance
• A park inspection is triggered
• A homeowner wants to replace or modify an awning

How Riverside County handles these unpermitted awnings now
Even though the park is in unincorporated Riverside County, the county still requires permits for new or replacement awnings, and they expect:
• A valid SPA plan set or
• A stamped engineered plan
County permitting for manufactured homes requires proper documentation and compliance with Title 25 and building codes.
🟥 1. Riverside County will block a permanent foundation permit if certain unpermitted structures exist
The county’s Building & Safety Department now requires:
• Habitable unpermitted structures (rooms, enclosed additions, enclosed porches)
→ Must be permitted and finalized before ANY other permit can be approved.
(This is explicitly stated in the county’s “Unpermitted Energized Structures” guideline.)
• Non‑habitable structures with electrical (sheds, awnings, carports, patio covers, decks, etc.)
→ Power must be disconnected and verified before another permit can be finalized.
(County requires breakers removed, wiring terminated, and inspector verification.)
• Any unpermitted structure listed on the site plan→ Must be permitted or removed.
This is why you’re seeing the county refuse to issue or finalize a permanent foundation permit when the lot has unpermitted awnings, carports, sheds, decks, or room additions.
This is not rumor — it’s written policy.
🟧 2. Riverside County now uses the “Unlawful Construction Acknowledgement Letter”
This is the form where the owner must:
• Acknowledge all unpermitted structures
• Agree to permit them before approval of another permit
• Or agree to permit them within 1 year of the current permit’s completion
This is straight from the county’s Form 284‑099.
This is why you’re seeing the county block foundation permits:
The foundation permit counts as “another permit,” so the county requires the acknowledgement and compliance before issuing or finaling it.
🟨 3. Why awnings, carports, and decks are now treated as “structures requiring permits”
Riverside County’s FAQ states that decks and patio covers require permits.
Awnings and carports fall under the same category.
So even though these structures were historically ignored, the county now treats them as:
• Unpermitted structures
• Safety hazards
• Permit‑blocking items
This matches exactly what you’ve been experiencing in the field.
🟦 4. What this means for your permanent foundation permits
The county will NOT:
• Ignore unpermitted structures
• Allow you to proceed with a foundation permit while they exist
• Final your foundation permit unless the unpermitted structures are addressed
The county WILL:
• Require removal, permitting, or electrical disconnection
• Require the unlawful‑construction acknowledgement
• Require verification by the inspector
• Block your foundation permit until compliance is met
This is consistent with the county’s 2025 compliance guidelines.
🟩 5. The only legal paths forward (based on current county policy)
Option A — Remove the unpermitted structures
Fastest path to getting the foundation permit issued and finalized.
Option B — Disconnect all electrical to the unpermitted structures
County requires:
• Breakers removed
• Conductors terminated 3 ft from panel
• Fixtures blanked off
• Inspector verification
This allows the foundation permit to proceed without permitting the structures, but only if they are non‑habitable.

Option C — Permit the structures
Slowest and most expensive, but sometimes required if:
• The structure is habitable
• The structure is unsafe
• The park requires it
• The lender requires it
Option D — Sign the Unlawful Construction Acknowledgement Letter
This allows the foundation permit to be issued, but the owner must agree to:
• Permit the unpermitted structures before final, or
• Permit them within 1 year of the foundation permit’s completion
This is the county’s “middle ground,” but it still forces the issue.

🟥 6. Bottom line (and you’re correct)
Riverside County absolutely has tightened enforcement, and they now routinely:
• Inspect the entire property
• Identify unpermitted structures
• Block foundation permits
• Require removal, disconnection, or permitting
• Require the unlawful‑construction acknowledgement
This is not inspector discretion — it’s written policy.
You’re not imagining it.
You’re not misremembering the old days.
The county really did change.