Financing a Short-Term Rental on 30A, Florida: The 2026 Investor Guide
How to finance a short-term rental home on 30A in Walton County, FL, jumbo DSCR loans, coastal insurance, and luxury Gulf-front underwriting.
Why 30A is a jumbo DSCR story
Highway 30A stretches roughly 24 miles along the Gulf Coast in Walton County, Florida, through communities like Rosemary Beach, Seaside, Alys Beach, WaterColor, and Grayton Beach. Median home prices are among the highest in Florida, and most investment purchases land in jumbo territory ($806,500+).
That means the working loan product is a jumbo DSCR, a portfolio program built for high-balance investment properties that qualifies on AirDNA-projected short-term rental income rather than the borrower's personal tax returns.
How the loan structure works for high-balance beach homes
Jumbo DSCR on 30A typically requires 25,30% down, a 700+ credit score for the best pricing, and a DSCR of 1.0 or higher on projected STR income. Loan amounts up to $3M are common; select portfolio programs go higher.
Reserves are meaningfully larger than on a standard DSCR file, plan on 6,12 months of PITIA in liquid reserves. LLC vesting is welcomed and does not increase the rate.
The insurance and elevation math that changes the DSCR
Coastal insurance is the single biggest line item. A 30A home will typically carry three policies: homeowners with commercial STR liability, a separate windstorm policy, and an NFIP or private flood policy. Combined premiums often run 2,4x what a comparable inland cabin would carry, and they directly reduce your DSCR.
Elevation certificates matter. Homes built to current elevation standards price flood insurance much lower than legacy structures. Ask the seller for the elevation certificate before you write the offer.
Neighborhood-specific rules also apply. Some 30A communities have HOA restrictions on rental duration, signage, and guest counts. Confirm the property's specific rules, a lender will underwrite to those constraints.
Frequently asked
- Are short-term rentals allowed on 30A?
- Yes. Walton County allows short-term rentals with a vacation rental registration, though individual HOAs and community Neighborhood Plans can add restrictions. Confirm the specific community's rules before writing an offer.
- What loan program is used for a 30A investment home?
- Most 30A investment purchases use a jumbo DSCR loan, a portfolio product that qualifies on AirDNA-projected income for loan amounts above the $806,500 conforming limit.
- How much do I need to put down on a 30A short-term rental?
- Plan on 25,30% down for a jumbo DSCR loan, with 6,12 months of PITIA in reserves and a 700+ credit score for the best pricing.