What Are Comps, and Why Do They Set Your Florida Sale Price Instead of You?

What Actually Counts as a Comp

A comp is a home that already sold, not one that's listed, not one you found scrolling a listing site last night, and not the house you're picturing in your head when you guess your own price. Fannie Mae's own underwriting rules, which govern how nearly every conventional Florida mortgage gets appraised, require a minimum of three closed comparable sales before a lender will fund a loan against a home's value. Recency matters too: Fannie Mae's guidelines call for comps that closed within the last 12 months, and the appraiser has to explain in writing any time an older sale gets used instead.

Distance isn't a vague 'nearby' either. An appraiser working your Florida neighborhood has to state the exact distance in miles and the compass direction from your house to each comp, measured as a straight line, not a drive-time guess. If you've ever pulled up three homes that 'looked similar' online and called that your comp research, you skipped the part that actually counts: proximity, recency, and a documented reason for every exception.

Adjustments are where most sellers get the math wrong. There's no fixed dollar amount Fannie Mae assigns to a pool, an extra bedroom, or a renovated kitchen. Its own guidance rejects a flat per-square-foot rule of thumb outright, using the example that a $20-per-square-foot adjustment is the wrong number if the actual market in that area supports something closer to $100 per square foot. Every adjustment has to trace back to what buyers in your specific market actually paid for that difference, not a formula pulled from a national article.

Why Comps Beat Your Own Number Every Time

You know your house better than anyone. That's exactly the problem. Every seller runs a mental comp analysis that quietly favors their own home: the kitchen you remodeled feels like it should be worth more than the data says, and the outdated bathroom next door feels irrelevant because it isn't your bathroom.

The real cost of that gap shows up in the numbers. In a nationwide HomeLight survey of real estate agents published October 1, 2025, 77% named overpricing as the single biggest mistake sellers make right now. That isn't agents being difficult. It's agents watching sellers anchor to a number the comps never supported, then living through the price cuts that follow.

Florida's own statewide data shows how tight the real gap runs when a home is priced correctly in the first place. Florida Realtors' July 2026 statewide report, released August 17, 2026, put the median percentage of original list price received at 96.0%, with homes reaching contract in a median of 47 days and a statewide median sale price of $425,000. That's the payoff for a listing price the comps actually support: a small, predictable gap between what you asked and what closed, not a summer of price drops chasing a number the comps never backed up.

What Happens When the Comps Disagree With What You Were Told

A listing agent's suggested price and a lender's appraisal both claim to come from comps, but they aren't always pulled from the same set, and they don't always agree. The buyer's lender orders an independent appraisal, and that appraiser selects their own comps, following the same distance-and-recency rules described above, regardless of what number got you into a signed contract. When the appraisal lands below the contract price, the deal doesn't just get awkward: the buyer's financing is capped at what the appraisal supports, and somebody has to close the gap or the contract falls apart.

What you actually want here isn't a better comp report, it's certainty: one number that doesn't move no matter which comps a lender's appraiser happens to pull later. Cash Flow Deals is a Florida real estate investor that locks in a net price for a seller's house before repairs are scoped, using a novation-based, flat-fee process arranged through its licensed FL brokerage partner, Silver Door Realty — not a traditional listing, and not a brokerage itself.

1. Walkthrough: Cash Flow Deals assesses your property's actual condition, not a comp spreadsheet built around homes it has never seen inside.

2. Net price: locked in writing before any appraisal is ordered, so a lender's later comp pull can't reopen the number.

3. Closing date: set by you, not held hostage to whether two independent comp analyses ever agree with each other.

For a seller who has already watched one listing stall on a comp-driven number that didn't hold, a price locked before the comps even get pulled solves a different problem than a better spreadsheet ever could.