Jumbo Loans in Key West, FL

When the price of a Key West home outgrows standard financing, the loan moves into jumbo territory. These mortgages sit outside the conforming market, so guidelines vary by lender and investor, and the documentation is usually heavier than for a typical purchase. Here is a plain-language look at jumbo purchase and refinance options for Florida buyers and owners, all subject to credit approval.

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Home values and jumbo lending in Key West

$852,400Median home value

229Jumbo first mortgages in Monroe County (2024)

$87,000Median household income

$680,000Median purchase loan (county)

The median owner-occupied home in Key West is valued at about $852,400. HMDA data show 229 non-conforming (jumbo) first mortgages in Monroe County in 2024. Whether your loan counts as jumbo depends on the loan amount and the limit for your county in the year you apply.

Where the conforming limit ends and jumbo begins

Every year FHFA publishes the maximum loan size that Fannie Mae and Freddie Mac can purchase. That ceiling differs by county, and some high-cost counties have a higher ceiling than others. Any first mortgage above the figure for your county is a jumbo, also called a non-conforming loan.

The line matters because it decides who sets the rules. A conforming loan follows standardized guidelines. A jumbo follows whatever the lender or the investor buying the loan requires, which is why two jumbo offers can look quite different. Ask any lender you speak with to confirm the limit for the county where the property sits before you assume which side of the line you are on.

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Why jumbo underwriting asks for more documentation

Jumbo underwriting is less about a single score and more about the full picture. Underwriters study income stability, how much of your monthly budget already goes to debt, and whether your savings could cover the home costs if your income were interrupted.

Bonus, commission, restricted stock or partnership income may each need its own paper trail, often stretching back over several tax filings. Gift funds, if a lender allows them at all, usually require a signed letter and proof of transfer. Asking up front which documents the lender will want can save weeks of back-and-forth once you are under contract.

Who this tends to fit

You are buying a second home or luxury property that conforming guidelines will not cover
You want to compare a single jumbo loan against a conforming first mortgage paired with a second lien
You earn income from bonuses, commissions or equity compensation and can document it
You are relocating into a higher-cost county from a lower-cost market
You have strong savings and want to keep them invested rather than putting more toward the purchase

Local offices and Florida rules to know

Property assessment: Monroe County Property Appraiser.
Deed and mortgage recording: Monroe County Clerk of the Court (recording). Your mortgage is recorded here after closing.

Florida recording costs: Documentary stamp tax on deeds and other documents that transfer an interest in Florida real property; documentary stamp tax on notes and recorded mortgages (written obligations to pay money); and nonrecurring intangible tax on mortgages - collected by the county clerk when the document is recorded. Your Loan Estimate lists the taxes that apply to your loan.

Jumbo appraisals, reserves and refinancing in Key West

Higher-value homes can be harder to appraise because truly similar sales are scarce. Some jumbo lenders order a second appraisal or a desk review for larger loan amounts, and appraisers may need to look farther afield for comparable properties. Unique features, acreage or waterfront access can all add complexity.

Reserves are liquid savings left over after closing, counted in months of housing costs. Jumbo guidelines often call for more of them than conforming loans do, and retirement accounts may count at a reduced value. If you already own a jumbo-sized home, a jumbo refinance follows the same reserve and appraisal review, so plan ahead before applying.

Before you call

The county where the property sits, so the lender can confirm the conforming limit that applies
A list of other properties you own, with their mortgages, taxes and insurance
Business tax returns and a year-to-date profit and loss statement if you are self-employed
Written explanations for any large or unusual deposits
A decision on how much cash you want to keep in reserve after closing

Questions Key West borrowers ask about jumbo loans

What are reserves, and why do jumbo lenders care about them?

Reserves are liquid funds you still have after paying your down payment and closing costs, usually measured in months of total housing expense. Jumbo lenders often look for more reserves than conforming lenders because the loans are larger and lack agency backing. Checking, savings, brokerage and some retirement funds may count, though retirement assets are sometimes valued at less than their full balance.

Why might a jumbo loan need two appraisals?

Some lenders and investors require a second appraisal or an additional review when the loan amount is especially large. Higher-value homes often have fewer comparable sales nearby, so a second opinion helps the lender confirm the value supporting the loan. If two appraisals are required, the lender usually relies on the lower value, which can affect how much you need to bring to closing.

What makes a mortgage a jumbo loan?

A mortgage becomes a jumbo when the loan amount exceeds the conforming loan limit FHFA sets each year for the county where the home is located. Loans under that limit can be sold to Fannie Mae or Freddie Mac. Loans above it cannot, so the lender either keeps them or sells them to private investors, who set their own guidelines for credit, income, assets and property.

Does the conforming limit change every year?

Yes. FHFA reviews home price data and announces new conforming limits annually, and the figures vary by county. A loan amount that counted as jumbo in one period could fall under the limit later, or the reverse. Because the number shifts, ask a lender to confirm the limit for your specific county at the time you apply rather than relying on an older figure you saw online.

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Get answers about jumbo loans for a home in or around Key West. Subject to credit approval; programs vary.