What is my Key Biscayne home worth?

It depends on what homes like yours have closed for. The median Key Biscayne single-family sale in the last 90 days was $4,950,000 and the median condo or townhome $1,380,000, but your value comes from the closed sales that match your street, size, condition and features. Request the free valuation on this page and a broker builds it from those sales, with a full comparative market analysis if you are thinking of listing.

How long does it take to sell a home in Key Biscayne?

Single-family homes that closed in Key Biscayne in the last 90 days had been on the market 178 days on average, condos and townhomes 79 days. Well-priced homes go under contract in the first few weeks; from contract to closing, financed buyers usually need 30 to 45 days and cash buyers can close in two. Condos add association approval, which we start on day one.

What does it cost to sell a home in Key Biscayne?

The commission is agreed in writing before the listing goes live and there are no upfront fees; photography, video, marketing and showings are included. At closing, Florida charges a documentary stamp tax on the deed, customarily paid by the seller, along with title and settlement fees and any association estoppel fee for a condo or HOA. We prepare a net proceeds estimate so you know what you will take home before you decide.

Should I list my home or take a cash offer?

List it if you can give the sale a few weeks and want full market value: Key Biscayne sellers achieved 90.8% of asking on the typical single-family sale in the last 90 days. Take the cash offer if you need a certain closing date, cannot make repairs or do not want showings. We put both numbers side by side, and you can keep the cash offer as a backup while the home is listed.

Do condos sell differently from houses in Key Biscayne?

Yes. The median condo or townhome in Key Biscayne closed at $1,380,000 against $4,950,000 for a single-family home, with 6 months of condo inventory versus 9.5 for houses, and condo buyers weigh the association fee, the reserve study, the milestone inspection and the rental rules as much as the unit. We assemble those documents before the listing goes live so the buyer's questions are answered on day one.

Sell Your Home in Key Biscayne

What Key Biscayne homes are selling for right now, how BreakThru Realty sells yours for its full value, and a free valuation built from recent Key Biscayne sales.

Selling a home in Key Biscayne starts with knowing what buyers are paying right now, not last year. This page shows live sold prices, days on market and months of inventory from BeachesMLS, what BreakThru Realty does to sell a Key Biscayne home for its full value, and a guaranteed cash offer for owners who need speed over price.

Key Biscayne Market at a Glance

Updated September 23, 2026 from BeachesMLS.

152homes & condos for sale
10new listings this week
22under contract
77waterfront listings
41luxury listings ($5,000,000+)
10sold in the last 30 days

	Single-family homes	Condos & townhomes
Active listings	38	110
Median list price	$7,540,000	$1,582,500
Median list price per sq ft	$1,969/sq ft	$1,031/sq ft
Average days on market	163 days	122 days
Sold in the last 90 days	12	55
Median sold price (90 days)	$4,950,000	$1,380,000
Sale price as % of list price	90.8%	95.5%
Months of inventory	9.5 months	6 months
Median sold price vs. a year ago	+29%	+6.6%

Source: BeachesMLS via the Spark API. Active listings as of September 23, 2026; sold figures cover closings in the last 90 days, compared with the same 90 days one year earlier. Not an appraisal. How these figures are calculated.

What Key Biscayne Homes Are Selling For

In the last 90 days the median single-family home in Key Biscayne closed at $4,950,000, or $1,973 per square foot, and the median condo or townhome at $1,380,000 ($856 per square foot). Sellers achieved 90.8% of their asking price on the typical single-family sale and 95.5% on the typical condo sale, and 10 sales closed in the last 30 days. Your home is not the median: waterfront, a pool, a renovated kitchen or a top-floor view all move the number, which is what the valuation is for.

Is Now a Good Time to Sell in Key Biscayne?

152 homes and condos are competing for buyers in Key Biscayne today, 10 of them new this week, and 22 are already under contract. Single-family homes have 9.5 months of inventory and condos 6 months, which makes the single-family side a buyer's market. Homes that closed took 178 days on average to go under contract (condos 79 days). In a market with fewer than four months of supply, a correctly priced home draws multiple showings in its first two weeks; in a slower one, pricing and presentation decide whether it sells at all.

Selling a Home in Key Biscayne

A Key Biscayne home is priced by its water, its lot and its building as much as its square footage. For a house, lot size, elevation, canal or bay frontage, the dock and seawall, and whether it is original, renovated or new construction can separate two homes on the same street; for a condo, the building, floor, exposure, view and the association's finances do the same. Your buyers often compare Key Biscayne with Brickell, Coconut Grove and Miami Beach, so we price from the closed sales that match your home. Start with a free valuation built on recent MLS sales, ask for a full comparative market analysis, or request a guaranteed cash offer if you need a fast, as-is sale.

How BreakThru Realty Sells Your Home

A written pricing analysis from the Key Biscayne sales that match your home, not a citywide average. Professional photography, video and floor plans, staging guidance, and a listing syndicated to every major portal and every BeachesMLS agent. Showing coordination, offer review and broker-level negotiation through inspection, appraisal and closing. No upfront fees; the commission and the plan are agreed in writing before your home goes live.

Need to Sell Fast? A Guaranteed Cash Offer

Some homes deserve the open market and some sellers need certainty. Through Neighborhood Cash Buyers, BreakThru can deliver a written cash offer on your Key Biscayne home within 24 hours of a walkthrough, with no repairs, no showings and a closing date you choose. We show the listing estimate and the cash offer side by side so you can see the difference in net proceeds and decide.

Recently Sold in Key Biscayne

The newest closings in Key Biscayne, with the sale price, closing date and days on market for each.

Recently sold homes in Key Biscayne

What Is Your Key Biscayne Home Worth?

Request a free valuation built on recent Key Biscayne sales, or a full comparative market analysis before you list. No fee, no obligation, and a licensed broker answers within one business day.

Selling in Key Biscayne: Frequently Asked Questions

What is my Key Biscayne home worth?: It depends on what homes like yours have closed for. The median Key Biscayne single-family sale in the last 90 days was $4,950,000 and the median condo or townhome $1,380,000, but your value comes from the closed sales that match your street, size, condition and features. Request the free valuation on this page and a broker builds it from those sales, with a full comparative market analysis if you are thinking of listing.
How long does it take to sell a home in Key Biscayne?: Single-family homes that closed in Key Biscayne in the last 90 days had been on the market 178 days on average, condos and townhomes 79 days. Well-priced homes go under contract in the first few weeks; from contract to closing, financed buyers usually need 30 to 45 days and cash buyers can close in two. Condos add association approval, which we start on day one.
What does it cost to sell a home in Key Biscayne?: The commission is agreed in writing before the listing goes live and there are no upfront fees; photography, video, marketing and showings are included. At closing, Florida charges a documentary stamp tax on the deed, customarily paid by the seller, along with title and settlement fees and any association estoppel fee for a condo or HOA. We prepare a net proceeds estimate so you know what you will take home before you decide.
Should I list my home or take a cash offer?: List it if you can give the sale a few weeks and want full market value: Key Biscayne sellers achieved 90.8% of asking on the typical single-family sale in the last 90 days. Take the cash offer if you need a certain closing date, cannot make repairs or do not want showings. We put both numbers side by side, and you can keep the cash offer as a backup while the home is listed.
Do condos sell differently from houses in Key Biscayne?: Yes. The median condo or townhome in Key Biscayne closed at $1,380,000 against $4,950,000 for a single-family home, with 6 months of condo inventory versus 9.5 for houses, and condo buyers weigh the association fee, the reserve study, the milestone inspection and the rental rules as much as the unit. We assemble those documents before the listing goes live so the buyer's questions are answered on day one.

Sell Your Home in Key Biscayne

Key Biscayne Market at a Glance

What Key Biscayne Homes Are Selling For

Is Now a Good Time to Sell in Key Biscayne?

Selling a Home in Key Biscayne

How BreakThru Realty Sells Your Home

Need to Sell Fast? A Guaranteed Cash Offer

Recently Sold in Key Biscayne

What Is Your Key Biscayne Home Worth?

Selling in Key Biscayne: Frequently Asked Questions

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