Construction Loans for Modular Homes: Down Payments, Rates, and How Draws Work in 2026

A modular home is built in a factory in 60 to 90 days while the site is prepared in parallel. Both phases need financing before a permanent mortgage can take over. That financing is a construction loan, a short term line of credit released in stages as the home moves from foundation to certificate of occupancy. Once construction is complete, the loan converts into a standard mortgage.

The mechanics are mostly the same as for any new build. The catch sits in two places. Lender familiarity with modular varies enormously, with some banks having closed hundreds of these loans and others none. And the draw schedule is front loaded compared with stick built, because the factory invoice arrives long before the home is finished on site.

This is how the loan works, what each program requires, and what to ask before you sign.

Why a modular home finances differently from a manufactured home

The single biggest source of confusion in modular construction lending is the modular versus manufactured distinction. The two categories sit on opposite sides of a regulatory line that determines whether a loan looks like a normal mortgage or something more expensive.

A modular home is built to state and local building codes, the same codes that govern stick built construction. Once permanently affixed to a foundation on land the buyer owns, it is real property. Conventional, FHA, VA, and USDA loans treat it the way they would treat a site built house, at standard mortgage rates of roughly 6% to 7% in 2026.

A manufactured home is built to the federal HUD Code, in force since June 15, 1976, on a permanent steel chassis. By default it is titled as personal property and financed through chattel loans at 7.5% to 10% or higher. It can be retitled as real property if permanently affixed to owned land on a certified foundation, which opens up FHA Title II, VA, and USDA programs, but with added friction at every step.

Fannie Mae’s Selling Guide section B2-3-02, updated in February 2026, confirms that modular, prefabricated, panelized, and sectional housing meeting local code is eligible under the same guidelines as site built. No modular specific comparable sales are required at appraisal. The rate gap between chattel and a conventional mortgage on a $200,000 loan over 20 years can run tens of thousands of dollars in additional interest, which is why getting the classification right at the start matters.

How a modular construction loan actually works

A construction loan is not a mortgage. It is a short term line of credit, usually 12 to 18 months long, that funds the build in stages. Funds are released through draws, each tied to a verified construction milestone. You pay interest only on the portion that has been drawn. If your total loan is $200,000 and only $80,000 has been drawn, your interest payment is calculated on $80,000. At a 7.5% construction rate, that comes to roughly $500 per month.

Construction phase rates run higher than the eventual permanent mortgage rate, typically 0.5% to 1.5% above the comparable 30 year fixed. The premium reflects the short term nature of the loan and the difficulty of valuing an unfinished house. That rate only applies until conversion.

The draw schedule and what gets funded when

A typical single family construction loan releases funds over four to six draws. The exact milestones vary by lender and by region, but the framework is consistent:

1. Foundation complete, verified by third party inspection. Often 10% to 15% of the total loan.
2. Module delivery and site set. For a modular build this is the largest single draw, often 30% to 40%, because factory costs are incurred before site work resumes.
3. Rough mechanical, electrical, and plumbing inspected. Walls are still open, and municipal inspection is required.
4. Drywall complete and exterior finished, making the home weather tight.
5. Final draw at certificate of occupancy. The permanent mortgage conversion is triggered here.

Each draw runs through a fixed administrative cycle: builder requests, lender orders inspection (two to five business days), lender reviews and funds (two to three business days). Total turnaround is roughly five to eight business days per draw.

The module delivery draw is the one to scrutinize before signing. The factory needs to be paid at or close to delivery, not weeks later. A lender that cannot fund within 48 to 72 hours of module set creates real cash flow risk. Ask directly how they handle this draw and what the longest delay has been on a recent modular file.

One time close versus two close

There are two ways to structure a modular construction loan. A one time close, also called construction to permanent or OTC, combines the construction phase and the permanent mortgage into a single closing that happens before the build starts. You lock the rate upfront, pay interest only during construction, and the loan automatically converts to a standard mortgage at completion. You do not requalify at the end. The structure saves roughly $3,000 to $8,000 in duplicate closing costs.

A two close structure separates the construction loan from the permanent mortgage. The construction loan closes first as a short term, interest only product. When construction is finished, a second closing converts it into a 15 or 30 year mortgage with its own underwriting. You pay two sets of closing costs and requalify at the second closing, but you can shop the permanent mortgage in a different rate environment.

OTC is faster and simpler. Two close is better if you expect rates to drop during the build. For modular builds of 6 to 12 months, the OTC rate lock is less of a gamble than on a 12 to 18 month stick built schedule. OTC is available under FHA, VA, USDA, and conventional. Two close is more common on conventional.

How FHA, VA, USDA, and conventional construction loans compare

All four major programs are open to modular construction. The differences sit in down payment, credit score, and program restrictions.

Loan type	Min down payment	Min credit score	Best for	Key restriction
FHA OTC	3.5%	580 program; 620 most lenders	First time buyers, lower credit	County loan limits; FHA approved lender and licensed FHA approved builder required
VA OTC	0% (full entitlement; no VA ceiling)	620 (lender overlay)	Veterans, active duty, eligible spouses	Fixed price contract only; VA approved builder; lender pool has shrunk in 2026
USDA OTC	0%	640 for automated approval; manual underwriting available below 640	Rural and eligible suburban buyers	Property must be in USDA eligible area; household income limit
Conventional OTC	20% to 25%	680	Stronger credit, larger builds	Higher down payment; fewest external rules
Conventional two close	10% to 20%	660	Buyers wanting to rate shop at conversion	Two sets of closing costs

FHA construction loan

The FHA One Time Close program is explicitly available for modular homes. The minimum down payment is 3.5% of total project cost, calculated on land plus construction together. Gift funds are permitted and land equity counts. The program floor on credit score is 580, although most FHA lenders apply a 620 overlay on the OTC product. Debt to income is capped at 43%, with up to 50% on compensating factors.

The builder requirement is the part that trips up first time buyers. FHA construction loans require a licensed, FHA approved builder operating under a fixed price contract. Owner as general contractor is prohibited. Inspections must be done by an ICC certified inspector or a registered architect or engineer. County loan limits apply, with the 2026 one unit floor at $541,287 in lower cost counties. Confirm the limit against HUD’s schedule for your county.

VA construction loan

The VA construction loan covers stick built, modular, and manufactured homes with zero down up to the 2026 baseline entitlement ceiling of $832,750. With full entitlement, VA imposes no loan amount ceiling, and 0% down is available above that threshold as well. Any down payment requirements on larger loans are lender overlays, not VA program rules. VA does not set a minimum credit score; lenders typically require 620 as their own overlay, though some apply higher thresholds.

The VA funding fee is the line item buyers often miss. First use with 0% down runs 2.15% of the loan amount. Subsequent use at 0% down runs 3.3%. With 5% or more down, the fee drops to 1.5%. Disabled veterans are exempt. Builder requirements are strict: a VA approved builder with a fixed price contract, signed builder profile, contractor license, general liability and builder’s risk insurance, and workers compensation evidence. Cost plus and owner builder contracts are not permitted.

The practical warning for 2026 is the lender pool. VA OTC availability has shrunk significantly, with fewer lenders actively writing the product than at any point in the last five years. Confirming a willing VA OTC lender is step one for veteran buyers, before talking to builders.

USDA construction loan

USDA Rural Development guaranteed construction loans are available for modular homes with zero down. The credit score minimum is 640 for GUS automated approval; borrowers with scores below 640 may still qualify through manual underwriting with additional documentation. The property must sit in a USDA eligible area, which covers most rural and many smaller suburban locations, and the buyer must meet household income limits that vary by county and family size. Check the USDA map at rd.usda.gov before any further steps.

The USDA OTC combines land purchase, construction, and permanent mortgage into a single closing. Modular qualifies explicitly. The program is the most restrictive of the four on credit and geography, and the most generous on down payment for buyers who meet the rules.

Conventional construction loan

A conventional construction loan carries the highest down payment requirements and the fewest external restrictions. OTC typically requires 20% to 25% down, 680+ credit, and a debt to income ratio under 43%. Two close drops the down payment to 10% to 20% with a 660+ credit floor. Loan amounts can go higher than FHA, VA, or USDA, which makes conventional the default for larger builds or higher cost markets where FHA county limits do not stretch.

Current 2026 rates on conventional modular construction sit at 6.25% to 7.5% depending on credit profile and loan to value. The conventional path also has the deepest lender pool, which often outweighs the higher down payment.

What lenders look for on a modular construction loan

Beyond the program floors, underwriting looks similar to a normal mortgage with two extra layers. The first is the builder package: contractor license, general liability and builder’s risk insurance certificates, a fixed price contract, an itemized cost schedule (sometimes called a Schedule of Values), and a draw schedule. FHA and VA add their own program specific builder approval steps on top.

The second layer is the appraisal. A construction loan appraisal is completed “subject to” the plans and specifications, with the appraiser estimating the finished value based on comparable sales. Fannie Mae’s guidelines do not require modular specific comparables, so a comparable site built sale is acceptable. The risk sits in rural markets where comparables of any kind are thin. An appraisal below the build cost creates a financing gap, and the standard mitigation is to specify “new construction modular, completed value” in the appraiser’s engagement letter at the start.

If the buyer already owns the land, its equity counts toward the required cash down. Most lenders allow combined land plus construction financing in a single loan.

Finding a lender who knows modular construction

Not every lender offers construction loans, and not every construction lender works comfortably with modular. Both questions need a yes before you have a viable lender.

Local credit unions and community banks are often the most flexible. Their loan officers know the regional builders and they handle draw administration in house. National lenders carry more product diversity but tend to outsource servicing, which can slow draw turnaround. Builder affiliated lenders are usually the fastest path to pre approval, but they carry a conflict of interest. Use one as a quote, not the only quote.

Five questions worth asking any potential lender:

1. Do you offer one time close construction loans for modular homes specifically?
2. How many modular construction loans have you closed in the last 12 months?
3. Do you service draws in house or outsource them?
4. How quickly can you fund a draw after a passed inspection?
5. Which builders have you approved for your construction loan program in this state?

Red flags: any lender that quotes a rate without asking for builder documentation, cannot explain how draws work, uses modular and manufactured interchangeably, or requires requalification at the end of an OTC loan. Where to start looking: HUD’s lender list at hud.gov for FHA approved construction lenders, the VA approved lender search at va.gov, the USDA Rural Development guaranteed lender directory at rd.usda.gov, and your state housing finance agency, several of which run construction loan programs with modular experience.

Matching your loan amount to the real cost of the build

The single most useful exercise before approaching a lender is sizing the total build, not just the home. The factory module runs $50 to $100 per square foot. Fully installed cost, excluding land, runs $80 to $175 per square foot in 2026 across most US markets. For a 1,500 square foot ranch with standard finishes, that lands at $120,000 to $262,500. For a 2,000 square foot home, $160,000 to $350,000.

The site costs added to the module price are the line items most buyers underestimate:

• Land preparation and clearing: $4,000 to $11,000
• Foundation (slab or crawl space): $6,000 to $30,000+
• Utility connections (water, septic, electric): $2,500 to $25,000
• Delivery and crane set: $5 to $10 per square foot
• Permits and fees: $500 to $5,000

A worked example. A 1,500 square foot modular home with average finishes: $150,000 home base, $15,000 foundation, $6,000 site prep, $8,000 utilities, $10,000 delivery and set, $2,000 permits. That totals roughly $191,000 before land. Land varies from $30,000 to $200,000+ by state, putting the total project at $220,000 to $400,000.

On that $191,000 figure: FHA 3.5% down works out to $6,685, plus land. VA or USDA at zero down covers the full package if you qualify. Conventional at 20% down requires $38,200, plus land. Modular typically runs 10% to 20% cheaper than equivalent stick built new construction, which tightens the loan sizing further.

Walk into the lender conversation with the full project figure already mapped, and the loan structure that comes out matches what you actually need. Browse modular home builders on PrefabMarket to compare published pricing before financing decisions are locked in, and check the modular home prices guide for state by state cost variation.