Modular Home Loan Calculator

Calculate the full cost of a modular home project — factory cost, land, foundation, transportation, crane, utility hookup, and finish work — and compute your conventional mortgage payment. Compare against site-built, model all four loan types (conventional, FHA, USDA, VA), and project Energy Star savings and long-term appreciation.

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Monthly Mortgage Payment
$1,751
Conventional mortgage · $270,000 loan · 30-year term
Total Project Cost
$300,000
Down Payment (10%)
$30,000
Loan Amount
$270,000
Total Interest
$360,437
Loan Type
Conventional (Real Property)
NOT Chattel / MH Loan
Lower rate, tax deductible
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Cost Breakdown by Component

Modular Factory Cost: $160,000
Land: $60,000
Foundation: $25,000
Transportation: $12,000
Crane / Set: $8,000
Utility Hookup: $15,000
Finish Work: $20,000
ComponentCost% of TotalNotes
Modular Factory Cost$160,00053.3%Factory price; includes all modules
Land$60,00020.0%May be pre-owned
Foundation$25,0008.3%Permanent foundation required for conventional loan
Transportation$12,0004.0%$5-$20/mile from factory; permit costs included
Crane / Set$8,0002.7%1-2 day crane rental + crew
Utility Hookup$15,0005.0%Water, sewer, electric, gas connections
Finish / Site Work$20,0006.7%Driveway, grading, landscaping, interior finishes
TOTAL PROJECT COST$300,000100%$1,751/mo at 6.75% for 30 yrs
Key financing distinction: Because the modular home is on a permanent foundation, this qualifies as real property and can use a conventional mortgage — NOT a chattel loan (which is for manufactured homes not on permanent foundations). Conventional rates are typically 2-4% lower than chattel loans and the interest is fully tax-deductible.
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Modular homes on permanent foundations qualify for the same loan types as site-built homes. Compare monthly costs and qualification requirements.

Loan TypeRateMin DownMonthly P&IPMI/MIPTotal MonthlyTotal Interest
Conventional
Modular qualifies as real property. Best rates. Requires completed foundation.
6.8%10.0%$1,751$113/mo$1,864$360,437
FHA
FHA allows modular. 3.5% min down. MIP required. No income limits.
7.0%3.5%$1,926$205/mo$2,131$403,878
USDA
Rural areas only. No down payment. Income limits apply. Best rate of all.
6.5%0.0%$1,896$88/mo$1,984$382,633
VA
Veterans only. No down payment, no PMI. Funding fee applies (1.25-3.3% once).
6.3%0.0%$1,847None$1,847$364,975
Modular vs manufactured home financing: A modular home on a permanent foundation (crawlspace, basement, or slab) is titled as real property and qualifies for conventional, FHA, USDA, and VA financing — the same as site-built. A manufactured home (HUD-code) on a non-permanent chassis is personal property and requires a chattel loan with significantly higher rates (7-12%). Always ensure proper titling when buying or financing a modular home.

Modular Home Financing: The Key Distinction

The single most important fact about modular home financing: a modular home on a permanent foundation is financed with a conventional mortgage — not a chattel loan, not a special "mobile home loan", not a manufactured home loan. The interest rates, down payment requirements, and terms are identical to a site-built home in the same location.

This distinction exists because modular homes are built to local building codes (the same codes that govern site-built construction), assembled on a permanent foundation, and titled as real property. Compare this to HUD-code manufactured homes, which are built to federal HUD standards, may be on non-permanent supports, and are frequently titled as personal property — requiring chattel loans at 7-12% interest rates.

Total Project Cost Formula

Total Project Cost = Factory Cost + Land + Foundation + Transportation + Crane/Set + Utility Hookup + Finish Work

Down Payment = Total Cost × Down Payment %

Loan Amount = Total Cost − Down Payment

Monthly Payment = Standard Amortization Formula (same as any mortgage)

Example: 1,800 sqft Modular in Rural Tennessee

Two-Module Ranch, 3BR/2BA, Permanent Foundation

Modular Factory Price$152,000
Land (5 acres)$65,000
Crawlspace Foundation$22,000
Transportation (180 miles)$14,400
Crane / Set (2 modules)$8,500
Utility Hookup (well, septic)$28,000
Finish Work / Grading$18,000
Total Project Cost$307,900
Down Payment (10%)$30,790
Loan Amount$277,110
Monthly Payment (6.75%, 30yr)$1,796
vs Comparable Site-Built$380,000+
Modular Savings$72,100 (23%)

This home qualifies for a USDA loan (no down payment) if the buyers meet income limits, reducing the upfront cash requirement to closing costs only.

Modular vs Manufactured vs Site-Built: Financing Comparison

Construction Type Built to Code Foundation Loan Type Typical Rate
Site-Built Local building code Permanent Conventional / FHA / VA / USDA Market rate (6-7%)
Modular (permanent foundation) Local building code Permanent required Conventional / FHA / VA / USDA Same as site-built
Manufactured HUD (on land) HUD federal code Permanent optional FHA Title II / VA / USDA (if on land) 7-9%
Manufactured / Chattel HUD federal code None (piers/blocks) Chattel loan only 8-12%

Frequently Asked Questions

Yes. Modular homes on permanent foundations qualify for conventional (Fannie Mae, Freddie Mac), FHA, USDA, and VA mortgages — identical to site-built. The requirements: the home must be on a permanent foundation (not piers or blocks), titled as real property (not personal property), and built to the local building code. When you sell, buyers can finance with the same conventional products.
Modular homes: built to local/state building codes (same as site-built), assembled on a permanent foundation, real property title, conventional mortgage eligible. Manufactured homes (formerly mobile homes): built to federal HUD standards on a permanent steel chassis, may be on temporary supports, often titled as personal property, typically require chattel loans at much higher rates. The distinction is code compliance (local vs federal HUD) and the foundation/titling approach.
Modular home timeline: factory production 8-16 weeks, foundation (can run parallel) 4-6 weeks, setting modules 1-2 days (by crane), utility connections and finish work 4-8 weeks. Total: 4-6 months from order to move-in. This compares favorably to 9-14 months for comparable site-built construction. The faster build reduces construction loan interest costs and allows earlier occupancy.
Yes. USDA Rural Development Section 502 loans cover modular homes in eligible rural areas (check the USDA eligibility map). Benefits: no down payment required, lower mortgage insurance than FHA (0.35% annual vs 0.85%), and competitive rates often below conventional. Income limits apply — typically 115% of area median income. The modular home must be on a permanent foundation and titled as real property. USDA is often the best option for rural modular home buyers who meet income limits.
Buyers often underestimate: transportation costs ($5-$20/mile per module — a 200-mile move with 2 modules = $8,000-$16,000); foundation costs ($15,000-$50,000 depending on type); crane/setting fees ($5,000-$15,000 per set); utility hookup ($10,000-$40,000 — well and septic on rural sites are expensive); site preparation and grading ($5,000-$20,000); and finish work like driveways, landscaping, and interior cosmetics. Budget 30-50% above the factory price for all-in costs.

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