I'm Tony Fitzgerald, The Mortgage Jedi, and I write mortgages for buyers on Casey Key, the eight-mile barrier island between Siesta Key and Venice where Gulf-front estates sit across a two-lane road from bayfront homes with docks. This page covers Casey Key's real geography, the flood and rebuild rules that actually move a Casey Key loan, and what I check before I hand you a number.
The real island, not the postcard version.
Casey Key is an eight-mile barrier island in Sarasota County, less than a quarter mile wide in places, with the Gulf of Mexico on one side and Little Sarasota Bay and Blackburn Bay on the other. A single winding two-lane road, Casey Key Road, runs the length of the island beneath oaks, palms, and sea grapes. There is no high-rise and no commercial strip anywhere on the island itself, which is part of what makes it different from almost every other address on this stretch of coast.
Two bridges connect the key to the mainland. The Blackburn Point swing bridge, a one-lane structure from the 1920s listed on the National Register of Historic Places, links the north end to Osprey. The Albee Road drawbridge connects the south end to Nokomis. Casey Key itself is unincorporated Sarasota County, so most island addresses carry a Nokomis or Osprey mailing address rather than their own city.
The housing stock is almost entirely single-family. It runs from mid-century beach cottages and renovated bayfront homes with docks to Gulf-front estates and the rare parcel that stretches from the Gulf all the way to the bay. A small cluster of low-rise condominiums sits near the south end by Nokomis Beach. Since the 2024 hurricanes, new elevated construction has been reshaping stretches of Casey Key, which is exactly where financing gets interesting.
Public life concentrates at the south end, where Nokomis Beach, Sarasota County's oldest public beach, and North Jetty Park at Venice Inlet anchor the island. North of there, Casey Key settles into a quiet residential rhythm of long driveways, dune walkovers, and dock lights on the bay. It is a small, private island.
Five real stretches of a very small island, each one changing the file in its own way.
Reached by the one-lane Blackburn Point swing bridge, this stretch holds large gated estates, deep lots, and some of the island's rare Gulf-to-bay parcels. Most are jumbo files, and I start with a flood and elevation pull before we talk numbers.
Jumbo · Gulf-to-bayThe narrowest section of Casey Key Road, where Gulf-front homes with direct beach frontage sit across the road from bayfront homes with private docks. Both sides carry serious flood exposure, so the elevation certificate does a lot of work here.
Luxury jumboThe wider southern section near the Albee Road drawbridge, where mid-century cottages, renovated homes, and new elevated construction sit side by side. This is where I see the most rebuild and renovation financing.
New construction · renovationThe island's south-end pocket around its only sizable public beach, and home to Casey Key's few low-rise condominium and cottage communities. If you are financing a condo on this island, it is almost certainly here.
Condo specialistThe southernmost tip at Venice Inlet, beside North Jetty Park, with the shortest boat run to open Gulf water anywhere on the island. A number of owners hold the property as a rental or second home, where DSCR loans often fit.
DSCR · investmentNone of this decides your rate. It is the kind of detail that tells you I actually know this island, not a template.
What makes a Casey Key file different from a generic Sarasota County file.
Virtually all of Casey Key sits inside a FEMA special flood hazard area, so any federally backed loan requires flood insurance, and that premium counts in your debt-to-income ratio. I request the elevation certificate early on every file, since elevation relative to base flood elevation drives both insurability and premium. Newer elevated construction generally insures more favorably than an older ground-level cottage.
Hurricanes Helene and Milton damaged a number of Casey Key homes in 2024, and repairs varied street by street. On a resale I pull the permit history to check it against FEMA's 50 percent substantial-improvement rule and current elevation code, since that history moves your insurance quote, and your insurance quote is part of your payment.
Casey Key has almost no condo stock outside the cluster near Nokomis Beach. Since those buildings tend to be smaller and older, I still pull the same documents I would for any Florida condo file: reserve funding, milestone inspection status, and litigation history. A building that has not kept its reserves current can be non-warrantable no matter how strong your own file is.
New construction and major additions on the Gulf side of Casey Key typically require state permitting seaward of the Coastal Construction Control Line, which adds time before a shovel goes in the ground. I structure new-construction and rebuild loans around that timeline instead of assuming a normal build schedule.
A dock and seawall add real value to a bayside Casey Key home, but they also add condition items an appraiser has to account for. I ask early about seawall condition, dock permits, water depth, and the opening schedule on the Blackburn Point swing bridge, since all of it can affect the appraisal and how comfortable a lender is with the file.
Plenty of Casey Key owners are self-employed, retired, or holding the property as a second home or rental. I qualify these files with bank statement loans, asset-based qualification for retirement income, and DSCR loans that look at rental income instead of pay stubs, often the right fit for a North Jetty or bayfront investment property.
I work the Sarasota, Manatee, and Charlotte corridor every day, and Casey Key sits in the middle of it. I know which stretches sit closest to the water, what a permit trail from the 2024 storms needs to show, and which handful of buildings near Nokomis Beach carry their own condo approval. I pull flood determinations, review permit and elevation history, and check dock and seawall condition before I hand you a number, because on an island this small, the address tells me almost as much as your income does. I was a Fire Lieutenant and EMT for 28 years before this. There is always something in a hidden wall, and I still check for it.
Answered from how each one affects your financing, not just the purchase.
Casey Key is an eight-mile barrier island in Sarasota County with almost no high-rises, no commercial strip, and housing that runs from a handful of condos and cottages up to Gulf-front estates and rare Gulf-to-bay parcels, so the loan programs that fit vary as much as the homes do. The real question for financing is not the island's reputation, it is the flood zone, the permit history if the home was touched by the 2024 storms, and whether you are looking at one of the few condo buildings, since all three move your qualifying number more than the address does.
South Casey Key and the Nokomis Beach area tend to be the most approachable files, mid-century cottages and a handful of condo buildings with clearer histories. North Casey Key and the mid-key estate corridor run almost entirely jumbo, gated estates, Gulf-front, and Gulf-to-bay parcels, where I lean harder on flood and elevation documentation before we talk price range. North Jetty is its own category, since a lot of that ownership is investment or second-home, which is where DSCR loans come in.
Effectively yes. Virtually all of Casey Key sits inside a FEMA special flood hazard area, so any federally backed loan requires flood insurance, and that premium counts in your debt-to-income ratio. I request the elevation certificate early, since a home's elevation relative to base flood elevation drives both insurability and the size of the premium, and newer elevated construction generally insures more favorably than an older ground-level cottage.
Very few. Casey Key is almost entirely single-family, and the small cluster of low-rise condominium and cottage communities near Nokomis Beach is the only meaningful concentration on the island. I still pull the same documents I would for any Florida condo file, reserve funding, milestone inspection status, and litigation history, before I say a building is financeable, because a building that has not kept its reserves current can be non-warrantable no matter how strong your own file is.
Financing itself does not care whether you own a boat, but a Casey Key waterfront home needs extra diligence before I can quote you with confidence. Bayside homes front Little Sarasota Bay and Blackburn Bay along the Intracoastal, and Venice Inlet at the island's south end gives direct deep-water access to the Gulf. I ask about seawall condition, dock permits, and water depth at the specific property, plus the opening schedule on the one-lane Blackburn Point swing bridge, since all of it can affect the appraisal.
It does not affect financing, but it affects where a lot of my Casey Key buyers end up looking. The island is served by Sarasota County Public Schools, commonly zoned to Laurel Nokomis School, a K-8 campus in Nokomis, and Venice High School, with Pine View School, the county's application-based gifted magnet in nearby Osprey, a short drive from the north bridge. Attendance zones shift, so confirm assignment with the district directly for a specific address.
Yes, and it is common here. A lot of Casey Key's newest construction followed the 2024 hurricane season, when Helene and Milton damaged a number of older ground-level homes. New and substantially improved homes have to meet current FEMA elevation standards, and renovating an older home is limited by the 50 percent substantial-improvement rule unless you bring the structure into full compliance. Gulf-front projects typically also need state permitting seaward of the Coastal Construction Control Line, and I build that timeline into how I structure the loan.
The two islands sit a few miles apart in Sarasota County but finance differently. Siesta Key has a real commercial village and a deep stock of condominiums, so I write plenty of condo loans there. Casey Key has no commercial strip and almost no condos outside the cluster near Nokomis Beach, so most of what I write there is single-family, often jumbo, with flood and elevation documentation doing more of the work than condo paperwork does.
Local note. Florida has no state income tax, real money back in your monthly budget if you are relocating to Casey Key from a state that has one. If you make a Casey Key home your primary residence, the homestead exemption lowers your taxable value, and Florida's Save Our Homes cap limits how much your assessed value can climb each year after that. A lot of Casey Key ownership is second-home or investment rather than homestead, so it is worth knowing upfront which column your purchase falls into, since the tax trajectory looks different.
For education and illustration only. This page is not a quote, rate, offer, or commitment to lend, and does not include taxes, insurance, or all costs. Your actual terms depend on your complete application and credit approval. Tony Fitzgerald NMLS #1284924 · 1st Response Mortgage is a registered DBA of Barrett Financial Group, L.L.C., NMLS #181106 · FL License #MLD1880 · Equal Housing Lender · This is not a commitment to lend. All loans subject to credit approval.