3.4 Mobile Home and Specialized Dwelling Coverage

Mobile Home Coverage

A mobile or manufactured home is not eligible for a standard dwelling or homeowners form because it is portable, depreciates differently, and is exposed to transit and over-the-road perils. ISO accommodates it through the Mobilehome endorsement (MH 04 01) attached to a Homeowners HO-2 or HO-3, or through a Dwelling form with a mobile-home endorsement. The result functions like a broad or special form adapted to a manufactured structure.

Key mobile-home features the exam tests:

• Coverage A insures the mobile home itself; Coverage B (other structures, often 10% of A) covers attached or detached structures such as utility sheds and carports.
• Transportation/Permission to Move — coverage for up to 30 days while the home is being moved for the purpose of avoiding a covered peril (e.g., an approaching hurricane), typically with a sublimit such as $500 or $1,000 for property removal expense.
• Loss settlement is frequently ACV because manufactured homes depreciate quickly, though replacement cost can sometimes be elected.
• Mobile homes used as the insured's residence may add personal liability and medical payments the same way other dwellings do.

Why Mobile Homes Differ from Site-Built Dwellings

The "avoid a covered peril" trigger is important: the move-coverage applies when the home is relocated to protect it from an imminent covered loss, not for an ordinary voluntary relocation. Anchoring/tie-down compliance is a common underwriting condition in wind-exposed states.

Specialized and Supplemental Dwelling Products

Beyond mobile homes, several specialized products fill gaps the standard dwelling program excludes:

• Flood Insurance (NFIP / private) — because all DP and HO forms exclude flood. NFIP Dwelling Form limits cap at $250,000 building / $100,000 contents for residential structures, with a standard 30-day waiting period before coverage takes effect.
• Earthquake endorsement — buys back the earth-movement exclusion; carries a high percentage deductible (often 10%–25% of the coverage limit, not a flat dollar amount).
• FAIR Plans (Fair Access to Insurance Requirements) — state residual-market mechanisms that write basic property coverage on dwellings rejected by the voluntary market due to location or condition; coverage is typically narrow (often basic named perils).
• Windstorm/Beach Plans — coastal residual pools that cover wind/hail when standard insurers exclude it in beach zones.
• Builders Risk / Dwelling Under Construction — covers a dwelling during construction, often on a reporting or completed-value basis.

Worked Example: Flood Sublimit and Earthquake Deductible

Flood. A homeowner buys an NFIP Dwelling policy and requests $300,000 of building coverage. The maximum NFIP residential building limit is $250,000, so the policy issues at $250,000; the remaining $50,000 of exposure is uninsured under NFIP and would require excess flood in the private market. The new policy also does not pay for a flood that occurs during the 30-day waiting period.

Earthquake. A dwelling is insured for $400,000 with an earthquake endorsement carrying a 15% deductible. A quake causes $120,000 of covered damage. The deductible is 15% × $400,000 = $60,000, applied to the limit (not the loss). The policy pays $120,000 − $60,000 = $60,000. Candidates routinely err by applying the percentage to the loss ($120,000 × 15% = $18,000) — the standard earthquake deductible is a percentage of the coverage limit.

Mobile Home Coverage Mechanics

Mobile and manufactured homes are insured by endorsing a homeowners or dwelling form (the Mobile Home Endorsement) rather than issuing a separate program. Key differences from a site-built home:

Specialized and High-Value Dwellings

• Seasonal / secondary dwellings - eligible for DP forms; insurers limit theft and vacancy coverage due to absence.
• Builders risk - covers a dwelling under construction for materials, fixtures, and the structure as value rises; written on inland-marine or property forms.
• Vacant dwellings - require a vacancy permit endorsement because standard forms suspend vandalism, glass, and water damage after the vacancy period.
• Condominium unit-owner / cooperative dwellings use specialized forms addressing the master-policy split (bare-walls vs. all-in).

Worked Example - Transit and ACV

A 15-year-old manufactured home insured for a stated amount of $60,000 on an ACV basis is being relocated under a 30-day transportation endorsement. It overturns on the highway, a peril the transit endorsement covers. The adjuster determines the replacement cost is $90,000 but depreciation is 40%, so ACV is $54,000. The insurer pays $54,000 (ACV, capped by the $60,000 limit), less the deductible - illustrating why mobile-home owners should understand they are usually not on a guaranteed-replacement basis like many modern HO-3 policies.

Knowing that mobile homes settle on ACV and need a separate move endorsement is the core tested concept.