Investing in Siesta Key, FL — Market Analysis
Siesta Key is a high-basis market by Florida standards, with a median home price around $950,000. Siesta Key is a coastal market, which changes the underwriting in two specific ways: insurance is a far larger line item than an inland comp, and windstorm or flood coverage may be written separately from the hazard policy. Both flow directly into your DSCR ratio.
Buying a rental property in Siesta Key on a DSCR loan means putting a minimum of $190,000 down (20% of purchase price), leaving a loan amount of $760,000 at 80% LTV. At current DSCR investor pricing near 7.50%, principal and interest on that loan runs about $5,314 per month. Add Sarasota County property taxes of roughly $NaN/month, landlord insurance of about $570/month, and an HOA/master-association allowance of $320/month, and your all-in PITIA lands near $NaN/month. That PITIA figure — not the P&I — is what the lender divides your rent into.
A long-term lease in Siesta Key should generate roughly $3,675/month in gross rent. Against a PITIA of $NaN, that produces an estimated DSCR ratio of NaNx. That is well below the 1.0 threshold on a long-term lease, which is typical for a market at this price point. Financing here generally works one of three ways — a larger down payment, a no-ratio DSCR product, or qualifying on short-term rental revenue instead of long-term rent.
If you intend to operate the property as a short-term rental, estimated gross nightly revenue in Siesta Key is around $7,900/month across a full year. Lenders do not credit gross STR revenue dollar-for-dollar — they typically haircut it 25%–30% for vacancy, cleaning, platform fees, and management. Applying a 28% haircut gives an effective $5,688/month, or a DSCR ratio of NaNx. Even on short-term revenue this is a tight file, so plan on a larger down payment or a no-ratio structure.
Two Florida-specific items to build into your model: Florida has no state income tax, but the Save Our Homes cap does not follow a sale — the county property appraiser resets assessed value to market the January after closing, and investor policies now price wind and flood separately in most coastal counties. In Siesta Key specifically, effective property tax on investment property runs around NaN% of value annually — about $NaN a year at the median price — and landlord insurance near $6,840 a year.
On return metrics, Siesta Key pencils to an estimated cap rate of 2.88% using a 62% NOI margin, and a gross rent multiplier of 21.5. Monthly cash flow on a long-term lease at 20% down is estimated at $NaN negative. Negative cash flow at 20% down is common in appreciation-led markets; investors here typically increase the down payment, buy below median, add a unit, or run the property short-term to close the gap.

