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ADU Financing Florida — In-Law Suites & Rentals

ADU Financing Florida

Build an accessory dwelling unit, in-law suite, or garage apartment in Florida. ADU financing taps your equity or the projected finished value so you can add living space and rental income. NMLS# 1859012.

Rental
Income Potential
After-Value
Lending
1 Lot
Two Homes
Get Pre-Approved📞 (561) 300-0380
By Onias Derilus, NMLS# 1859012 · Licensed FL Mortgage Broker · Last Updated: May 2026
ADU Financing Florida

ADU Financing in Florida

An accessory dwelling unit adds a second home to your lot. ADU financing pays for the build using your equity or the value the property will have once the unit is done.

Maybe you want a rental that helps cover the mortgage, a private space for a parent, or room for an adult child. An ADU does all three, and the right loan makes the project affordable.

Who is it for? Florida homeowners with a suitable lot who want to add living space, generate rent, or house family without buying a separate property.

Eligibility & Requirements

✓Zoning that permits an ADU on your lot
✓Equity in the home or strong after-completion value
✓660+ credit score on most programs
✓Build or conversion cost estimate
✓Projected rent can help on some programs
✓Primary residence or investment property

Official resource: CFPB — Owning a Home.

Why Owners Build an ADU
Rental incomeOffsets the mortgage
Family housingIn-law suite
Added valueTwo homes, one lot
Flexible useOffice or guest
Uses and value vary by property and market.
Project Example — Illustration
ProjectGarage conversion
Build cost$95,000
Projected rent$1,500/mo
FinancingRenovation loan
Lends againstAfter-value
Min FICO660+
Illustration only — not a rate quote. Costs vary by build.
Rates & Costs

What ADU Financing Costs

The cost depends on which loan you use. An equity loan or HELOC is priced on your credit and the equity left in the home. A renovation loan is priced on the projected value once the ADU is built, and that after-value often unlocks a larger amount for a ground-up unit.

Loan Type
Equity, HELOC, cash-out, or renovation each price differently.
After-Completion Value
Renovation loans lend against the finished value, not just today's.
Rental Offset
Projected rent can help you qualify on some programs.

We do not post a fixed rate — your number depends on the loan and project. Request a personalized quote for real terms.

Pros & Cons

ADU Financing Pros and Cons

Advantages
✓Adds rental income to your lot
✓Houses family privately
✓Lends against after-value
✓Raises property value
✓Multiple loan options
Trade-offs
✓Zoning must allow it
✓Build timelines and permits
✓Construction draws to manage
✓Adds debt against the home
✓Returns vary by market
How to Qualify

How Owners Get Approved

1. Check your zoning
We confirm your city and county allow an ADU on your lot.
2. Size the project
Get a build or conversion estimate and the projected finished value.
3. Pick the loan
Equity loan, HELOC, cash-out, or renovation loan against after-value.
4. Fund and build
Draw funds, complete the unit, and start collecting rent.
Florida Notes

ADUs Across Florida

Florida's housing crunch has pushed more cities to ease ADU rules, and the state's strong rental demand makes a finished unit easy to lease. A backyard cottage or garage apartment can turn a single lot into two income sources.

Rules differ from one city to the next, so the first step is always your local zoning. In markets like Miami, Orlando, and Tampa, an ADU is also a popular way to keep a parent close or add long-term value.

Compare Options

Ways to Finance an ADU

How a renovation loan compares with a home equity loan and a HELOC for building an ADU.

FeatureRenovation LoanHome Equity LoanHELOC
Lends AgainstAfter-completion valueCurrent equityCurrent equity
Rental Income CountsOften yesSometimesNo
Keeps 1st MortgageDependsYesYes
Best ForGround-up ADUSmaller buildQuick draw
PayoutStaged drawsLump sumRevolving line
ADU Financing FAQ

ADU Financing Questions, Answered

What is ADU financing?
ADU financing pays for building or converting an accessory dwelling unit, the smaller second home on your lot like an in-law suite, garage apartment, or backyard cottage. The loan usually draws on your home's equity or the projected value once the unit is finished. Mortgage Capital (NMLS# 1859012) arranges ADU financing for Florida homeowners.
What counts as an ADU in Florida?
An accessory dwelling unit is a self-contained living space on the same lot as your main home, with its own kitchen, bath, and entrance. That covers detached cottages, garage conversions, basement units, and attached additions. Local zoning decides what is allowed, so we confirm your city and county rules first.
How do I pay for building an ADU?
Common routes are a home equity loan, a HELOC, a cash-out refinance, or a renovation loan that lends against the after-completion value. The best fit depends on how much equity you have and whether you want to keep your current first mortgage rate.
Can the rental income help me qualify?
On some programs, yes. Renovation and investment-style loans can count projected rent from the finished ADU toward qualifying. That can make the numbers work even if your current income alone would fall short.
How much can I borrow for an ADU?
It depends on your equity and the program. Equity-based loans cap out around 80 to 85 percent of current value, while renovation loans lend against the projected value after the unit is built, which often unlocks more for a ground-up cottage.
Is an ADU a good investment in Florida?
For many owners it is. An ADU can produce rental income, house an aging parent or adult child, and add value to the property. Florida's rental demand makes a finished unit easy to lease in most markets, though returns vary by location and build cost.
Explore Related Programs
Renovation Loans FloridaHome Equity LoansHELOC FloridaAll Florida Loan Programs

Finance Your Florida ADU

Rental income potential · Lend against after-value · Licensed FL mortgage broker NMLS# 1859012

📞 (561) 300-0380

Rates are illustrative only. APR and payments vary by credit score, loan amount, and market conditions. Subject to credit approval. Not a commitment to lend. NMLS# 1859012. Equal Housing Lender.