How to Finance a BOXABL Casita (Investors)

How to finance a BOXABL Casita as a real estate investor is a two-loan story: construction or bridge while the unit is ordered, set, and CO’d — then DSCR permanent when the combined property rents. BOXABL’s order page shows consumer payment examples starting around $895/mo on Studio turnkey promos. That is BOXABL partner financing for homeowners. Jaken Finance Group finances non-owner-occupied investment property at 8.99%–13.5% interest-only during construction and 5.75%–10.5% on DSCR takeout — capped at 75% of as-completed combined value on qualified files.

Disclosure: Jaken Finance Group may earn a commission if you order a BOXABL Casita.

This guide maps BOXABL’s order flow onto investor capital stacks, lists the file checklist appraisers and underwriters expect, and explains why owner-occupied backyard Casitas belong on a different desk. For all-in cost and rent math, see BOXABL Casita cost and rental income. For model selection, see BOXABL Casita models investor guide.

Non-owner-occupied only — read this first

Jaken Finance Group does not finance Casitas behind houses you live in. An owner-occupied ADU is consumer credit — bank, HELOC, or BOXABL’s finance partners. An investment-property Casita behind a rental you hold in an LLC is our ADU construction loan desk.

Scenario	Jaken Finance Group stack?
Casita behind rental SFR in LLC	Yes — construction → DSCR
Casita behind 2–4 you hold as rentals	Yes — combined rent roll
Casita behind house you occupy	No — consumer path
Baby Box RV in backyard	No — personal property
Unpermitted unit, no CO	No — income does not count

The partnership announcement explains how product and capital connect. Construction-to-DSCR takeout financing is the permanent exit playbook.

BOXABL order flow — what happens before the lender funds

BOXABL’s published order path (September 2026):

1. Order fee — $250 after initial property qualification review
2. Feasibility study — virtual site check, preliminary report
3. Production deposit — $2,500 to enter factory queue
4. Permit approval — BOXABL turnkey manages; unit-only is on you
5. Site prep — foundation, utilities stubbed
6. Delivery and set — crane, unfold, tie-down (~24 hours on site)
7. Final touches — MEP connections, inspection, CO

Your construction loan should align draws to these milestones — not fund the full factory invoice on day one unless the file structure allows it. Submit the BOXABL contract and draw schedule with your newbuild application.

You can order a BOXABL Casita once zoning and capital path are confirmed.

Phase 1: Construction and bridge financing (8.99%–13.5% IO)

During order, set, and CO, qualified investors use new construction or fix-and-flip / bridge pricing:

Parameter	Jaken Finance Group qualified file
Rate	8.99%–13.5% interest-only
Leverage	Up to 75% of as-completed combined value
Term	12–18 months typical — match realistic CO date
Close speed	10–14 business days with complete file
Min FICO	None on select construction programs

As-completed value means the appraised worth of primary dwelling + Casita after CO — not land alone, not factory invoice. If the primary is a $400,000 rental and the Casita adds $120,000 in appraised value, combined $520,000 supports $390,000 at 75% — but only if the appraiser reconciles modular ADU comps.

Construction interest example: $135,000 average balance at 11% IO for 8 months = ~$9,900 carry. Budget in your pro forma from BOXABL cost guide.

What construction underwriting weighs

• Zoning letter — ADU permitted, setbacks, max sq ft
• Budget realism — unit-only vs turnkey paths differ
• Exit clarity — DSCR on combined rent, not flip unless documented
• Experience — first-time sponsors need tighter contingencies
• HOA / CC&R — ADU ban kills the file before order

Compare to ground-up construction loan vs fix-and-flip when the primary also needs work.

Phase 2: Certificate of occupancy and lease-up

DSCR takeout requires a legal, rentable asset:

Requirement	Why
Certificate of occupancy	Proves habitability — no CO, no permanent
Separate address or unit designation	Lease and appraisal clarity
Executed lease or market rent 1007	DSCR numerator
Landlord insurance updated	Replacement cost includes Casita
Taxes reassessed	PITIA denominator

Vacant takeout with market rent from appraisal is possible on some 1–4 programs — see DSCR below 1.0 with market rent — but leased is cleaner pricing.

Seasoning: Many DSCR programs want 90 days on title post-CO. Model timeline in your DSCR loan requirements guide.

Phase 3: DSCR takeout (5.75%–10.5%)

Permanent investor financing qualifies on rent ÷ PITIA — not your W-2.

Parameter	Jaken Finance Group qualified file
Rate	5.75%–10.5% fixed or ARM
Leverage	75% LTV typical on combined value
DSCR minimum	1.0 for best tiers — higher is better
Term	30-year fixed or ARM
Close	~14 business days with complete package

Formula: DSCR = monthly gross rent (actual or appraiser market) ÷ monthly PITIA (principal, interest, taxes, insurance, HOA if any).

Use the DSCR calculator before you apply. Read how a DSCR loan works for tier math.

Worked financing example (composite)

Stage	Detail
Property	Rental SFR + One-Bedroom Casita (722 sf)
As-completed appraised value	$515,000
Construction loan funded	$138,000 at 10.5% IO, 7 months
Construction interest	~$8,500
Combined gross rent	$3,650/mo
DSCR takeout loan	$386,250 (75% LTV) at 7.875%, 30-year
PITIA (illustrative)	~$2,890/mo
DSCR	1.26

Construction pays off from takeout proceeds; sponsor equity returns per your equity structure. Cash-out above construction payoff is optional — model conservatively if appraisal variance is ±10%.

Appraiser requirements — what makes or breaks value

Appraisers must reconcile modular / factory-built ADU comps — not default to stick-built SFR only.

Appraiser deliverables lenders expect

Item	Detail
As-completed appraisal	Primary + Casita as one legal parcel
Modification / factory docs	BOXABL installation records, tie-down
Foundation inspection evidence	Permanent foundation — not skirting
CO copy	City-issued
Rent schedule (Form 1007)	ADU comps within reasonable distance
Photos	Set, foundation, interior, meters
Remaining economic life	Modular treated as real property when affixed

If the appraiser cannot find modular ADU sales, they may use cost approach or paired sales — expect variance. That is why we stress 75% leverage cap, not max push. See BOXABL vs site-built ADU vs manufactured home for code-class context and manufactured home ARV and comps for why HUD-label comps differ.

Do not assume Casita equals stick-built ARV premium. Some markets pay parity; others discount until sales history builds.

Complete file checklist

Before order

• Entity docs (LLC operating agreement, EIN)
• Proof primary is non-owner-occupied (lease, insurance)
• Zoning letter or ADU eligibility confirmation
• Site survey or plat
• Utility capacity letter (electric, water, sewer)
• BOXABL model selection and quote (unit-only or turnkey)
• Feasibility notes from BOXABL advisor

Construction loan submission

• Newbuild application or submit scenario
• Purchase agreement / BOXABL contract
• Detailed construction budget (line-item)
• GC or installer bid (license, insurance)
• Plans and engineering (BOXABL package + local stamps)
• Draw schedule aligned to factory and site milestones
• Exit pro forma — combined rent, DSCR, 75% LTV sensitivity
• Insurance quote (builder’s risk → landlord)
• Title commitment showing no ADU restrictions

DSCR takeout submission

• Certificate of occupancy
• Final appraisal (as-stabilized combined)
• Executed lease(s) — primary and Casita if separate
• Landlord insurance binder
• Tax bill (updated assessment)
• Payoff statement from construction lender
• Entity still holds title — no owner-occ change

Missing zoning or CO is the top delay. Unpermitted work never reaches DSCR — same rule as DC ADU rules and Chicago ADU ordinance.

Matching BOXABL milestones to your capital stack

Investors lose deals when factory timing and lender draws misalign. BOXABL controls factory queue; you control zoning and lender readiness. The winning sequence:

Week 0: Pull zoning and utility capacity before the $250 order fee. Confirm ADU zoning basics or your local equivalent if the parcel is in a restricted RS or HOA district.

Week 1–2: Pre-qualify construction with a combined as-completed pro forma — not a Casita-only spreadsheet. Attach primary lease, tax bill, and insurance dec page.

Week 2–4: Pay BOXABL production deposit; close construction loan with draw schedule that funds factory invoice after foundation inspection on unit-only paths.

Month 2–4: Permits run parallel to factory build. Escalate jurisdiction delays early — every idle month burns IO.

Set day: Lender inspector verifies foundation tie-down, crane set, and weatherproofing before releasing the largest draw.

CO + 30 days: Order appraisal update, finalize landlord insurance, execute Casita lease, submit DSCR takeout package.

This rhythm is the same whether you choose Studio ($140,000 turnkey promo) or Two-Bedroom ($200,000 turnkey promo) — only dollar amounts change.

Primary lease continuity during construction

The primary rental must stay performing through construction. Lenders underwrite combined DSCR on exit — but construction-phase risk includes:

• Tenant disruption from crane access, utility trenching, and noise
• Insurance liability during active job site
• Cash-flow dip if primary tenant breaks lease mid-build

Mitigate with construction access clauses in the primary lease, temporary rent concessions disclosed to the lender, and a reserve for one month primary vacancy. If the primary is vacant at construction close, some desks treat the file as full vacant takeout — harder pricing. Keep the primary leased when possible.

Rate and leverage tiers on DSCR exit

Permanent pricing is not a single number. On qualified investor files at 5.75%–10.5%:

DSCR tier	Typical leverage	Rate band (indicative)
1.25+	75% LTV	Lower half of band
1.10–1.24	70–75% LTV	Mid band
1.0–1.09	65–70% LTV	Upper half of band
Below 1.0	Case-by-case	Add-on pricing — avoid

Stronger guarantor credit may widen LTV slightly — but the property ratio drives the file. A Casita that adds $400/mo net to DSCR after PITIA often pays for itself in permanent rate tier improvement versus a sub-1.0 primary-only refi.

Use short-term rental DSCR rates only where STR is legal — not standard ADU cities.

Third-party reports lenders order

Beyond appraisal, budget soft costs for:

Report	When required
Title update and ALTA endorsement	Every close
Flood certification	FEMA zones — common in Florida
Survey	Setback verification on tight lots
Zoning compliance letter	Some DSCR investors require at CO
Phase I environmental	Prior commercial use on lot

Modular set does not eliminate flood or enviro risk. Coastal Miami ADU files may need elevation certificate updates after foundation.

Guaranty and recourse expectations

Construction and DSCR files on LLC-held rentals typically require personal guaranty from the sponsor unless you qualify for non-recourse commercial terms on larger balance sheets. Understand:

• Bad boy carve-outs — fraud, bankruptcy triggers full recourse
• Completion guaranty — you finish the Casita if contractor fails mid-set
• Carve-out for environmental — rare on residential infill but disclose prior use

Bring two years entity and personal bank statements if the desk asks for liquidity proof — standard on first modular ADU files without track record.

Post-close: scaling to a second Casita

Some investors add multiple ADUs where ordinance allows. Chicago caps affordability requirements when you add two or more new units — see Chicago ADU ordinance. California allows multiple ADUs on many lots per HCD guidance.

Second Casita financing stacks equity from the first DSCR refi — do not assume automatic 85% LTV stacking. Each addition needs fresh as-completed appraisal on all improvements. Scale with how to scale a rental portfolio with DSCR discipline.

Capital stack alternatives

All cash for Casita, DSCR on combined property later

Some sponsors pay unit-only or turnkey from liquidity, then cash-out DSCR refi on combined value after CO. Works when construction loan timing does not match BOXABL factory queue.

Investment-property HELOC

Jaken Finance Group investment-property HELOC may cover part of the equity stack on non-owner-occupied holdings — program CLTV and lien position rules apply. HELOC plus construction IO is common; HELOC alone rarely covers full vertical on larger turnkey packages.

BOXABL consumer financing

BOXABL’s site cites partner financing from ~$895/mo on Studio turnkey — consumer product, not our investor construction paper. Do not confuse advertised consumer payments with 8.99%–13.5% IO or 5.75%–10.5% DSCR.

Financing paths that fail

Path	Why it fails
Owner-occ FHA 203(k) on Casita ADU	Wrong occupancy — Jaken Finance Group does not broker this
Chattel loan on Casita	Casita on permanent foundation is real property when permitted — chattel is Baby Box / HUD without land
DSCR on STR pro forma	ADU STR banned in many cities
Max LTV without appraisal support	75% cap binds on combined value
Unpermitted garage conversion + Casita	Planning risk — lender stops

For HUD double-wide contrast, read DSCR loans for manufactured homes and chattel vs real property for mobile home flippers.

Timeline coordination: lender ↔ BOXABL

Week	BOXABL	Lender
0–2	Order fee, feasibility	Pre-qual, zoning review
2–4	Production deposit	Construction loan close, first draw holdback
4–12	Factory build	Permit tracking, site prep draws
12–16	Delivery scheduled	Foundation draw, set draw
16–20	CO support	Final draw, lease-up
20–24	—	DSCR takeout application

Pad 4 weeks for appraisal and title on takeout. Total 5–9 months is realistic — match your IO term.

Geographic notes

ADU financing rules vary by city — product is national, entitlement is local:

• Los Angeles ADU zoning basics — large ADU market, permit volume
• Chicago ADU ordinance 2026 — RS opt-in required in single-family districts
• DC ADU rules — row home English basements vs detached Casita rare
• Miami ADU zoning — hurricane and flood certs may add soft costs

Pull local ADU ordinance before construction close — not after set day.

Construction draw schedule — line by line

Lenders release funds against documented completion, not factory invoices alone. A typical BOXABL Casita draw map on a unit-only file:

Draw #	Milestone	Typical % of loan	Documents
1	Loan close — soft costs	10–15%	Budget, plans, zoning letter
2	Foundation complete	20–25%	Inspection, photos
3	Factory deposit / unit production	25–35%	BOXABL invoice, production slot
4	Delivery and set	20–25%	Crane receipt, set photos
5	MEP final / CO pending	10–15%	Utility sign-offs
6	Retainage release	5–10%	CO copy, final inspection

Turnkey BOXABL purchases may consolidate draws — the lender still inspects foundation and CO. Never assume 100% advance on factory payment without program confirmation. Submit the draw schedule with your newbuild application so the closer matches BOXABL’s billing cadence.

Entity structure, title, and vesting

Hold both the primary and Casita in the same LLC vesting that matches your loan guaranty structure. Splitting title — primary in LLC A, Casita pad in LLC B — breaks DSCR combined collateral unless you have a recorded lease between entities (messy, often declined).

Structure	Lender view
Single LLC owns land + all improvements	Clean — standard
Individual owns primary, LLC owns Casita	Problem — cross-collateral gap
Land trust with LLC beneficiary	Case-by-case — disclose early
New LLC mid-project	Requires title endorsement — delays

Bring operating agreement, EIN, and certificate of good standing to construction close. DSCR takeout uses the same entity — no mid-stream flip to a new LLC without lender consent.

Liquidity and reserve requirements

Construction lenders expect sponsor liquidity beyond equity in the deal:

Reserve type	Typical ask
Interest reserve	3–6 months IO sometimes capitalized in loan
Contingency	5–10% of hard costs outside loan
DSCR takeout reserves	6–12 months PITIA on some programs
Boxabl deposits	$2,750 minimum before draws

If your entire stack is 75% LTC with zero cash reserves, one permit delay pushes you into extension fees. Keep $15,000–$25,000 liquid on a $180,000 Casita project as a practical floor.

Why conventional mortgages rarely fit the investor Casita path

Owner-occupants sometimes ask about FHA 203(k) or Fannie Mae ADU programs for Casitas behind a primary residence. That is not the Jaken Finance Group desk. Investors on non-owner-occupied property use private construction credit because:

• Conventional delivery requires CO on the entire property before permanent — construction phase needs IO
• Manufactured home overlays do not apply to IRC modular Casitas — but appraisers still ask code questions (see code class guide)
• GSE rent roll rules lag modular ADU comp depth in many counties
• LLC vesting excludes most agency loans entirely

Agency ADU programs are evolving — track FHFA and GSE bulletins for owner-occ only. Investors stay on 8.99%–13.5% construction IO → 5.75%–10.5% DSCR.

Construction loan extensions and exit pressure

If CO slips past your IO maturity:

Option	Cost
One-term extension (30–90 days)	0.25–1 point + continued IO
Refinance to bridge	New origination — higher rate possible
Payoff from sponsor cash	Liquidity drain

Model two months of slippage in every pro forma. Permits in Los Angeles and Chicago RS districts routinely exceed optimistic timelines.

Appraiser red flags that delay DSCR

Red flag	Lender response
No modular comps within market area	Value haircut or cost approach
Skirt foundation instead of stem wall	Stop — bring to code
Unpermitted electrical tie-in	No takeout until resolved
Primary listed as 1-unit on tax card post-CO	Require assessor update
Rent comp from dissimilar stick-built ADU only	1007 challenged — lower market rent

Order the appraisal after CO with photos of tie-down, meter, and separate entrance. Pre-CO “subject to completion” appraisals help construction sizing but rarely serve as final DSCR collateral without update.

FAQ for your broker and closing attorney

Before you wire BOXABL deposits, ask your closing team:

1. Does title show ADU restrictions or CC&R bans? If yes, stop — no lender proceeds.
2. Will the lender require a completion assignment on the BOXABL contract? Some desks take assignment of the purchase agreement as collateral.
3. Is a separate meter required for the Casita lease? Utility separation simplifies appraisal and tenant billing.
4. Does the county tax card need a unit count update at CO? Mismatch delays DSCR.
5. Who orders the final inspection — BOXABL turnkey or your GC? Draw releases depend on the answer.

Your attorney does not replace lender underwriting — but early title and CC&R review saves $2,750 in non-refundable deposits on ineligible lots.

Consumer vs investor financing — side by side

Feature	BOXABL consumer partner loan	Jaken Finance Group investor construction → DSCR
Occupancy	Often owner-occ focused	Non-owner-occupied only
Rate band	Partner quoted (~$895/mo promos)	8.99%–13.5% IO → 5.75%–10.5%
Qualification	Personal income / credit	Rent roll, as-completed value, exit DSCR
Collateral	Casita package	Combined parcel
Takeout	Partner permanent	DSCR on stabilized combined property

Pick the column that matches your hold structure before you order a BOXABL Casita.

Start your file

1. Model all-in cost and DSCR — BOXABL Casita cost and rental income
2. Pick model — BOXABL Casita models investor guide
3. order a BOXABL Casita when zoning clears
4. Submit construction file — newbuild · submit scenario
5. Call (833) 264-7776 to align BOXABL milestones with draw schedule

Sources

• BOXABL order flow and pricing pages, accessed September 2026
• Jaken Finance Group ADU construction loans and construction-to-DSCR takeout product pages
• American Planning Association — ADUs
• California HCD — ADU policy
• HUD manufactured housing standards (contrast only) — HUD Manufactured Home program

How to Finance a BOXABL Casita — next step

Align BOXABL order milestones with 8.99%–13.5% construction draws and 5.75%–10.5% DSCR takeout at 75% combined LTV. Non-owner-occupied only.

Submit scenario · Pre-qualify · (833) 264-7776.