Key Biscayne Condos for Sale Under $500,000

Find the Key Biscayne condo that fits your life, with the association, the fees and the offer understood before you commit.

Live BeachesMLS listings matching this search in Key Biscayne, Florida, updated throughout the day.

The entry end of the Key Biscayne condo market is small and specific. It sits mostly in older buildings on Galen Drive and Sunrise Drive, with Cay Polynesia among the names, and the apartments are studios and one-bedrooms in buildings from the sixties. Buyers are usually first-time island owners, people who want a base near the beach and the parks, or investors in buildings that allow leasing. A low price here comes with an older building, so ask for the milestone inspection, the structural integrity reserve study and any planned assessment, and check early whether lenders will finance the building. Across Florida, buildings of this age have met large repair bills after their first structural inspection, and every owner shares that cost, so budget for it before you commit to a Key Biscayne apartment.

6 listings, newest first.

The 6 listings on this page run from $419,000 to $495,000, with a median of $454,500, about $712 per square foot, and they have been listed a median of 123 days.

The communities with the most listings here are Cay Polynesia (2) and Galen Drive (2), 4 of the 6; the others are spread across 2 more communities. All of them are condos. Bedrooms run from studios to 1, a median of 1; they were built between 1964 and 1968, a median of 1966. 1 of the 6 have a pool, and 2 are on the water.

Ask About These Key Biscayne Condos Under $500,000

Tell us which of these homes you want to see, or what you are looking for that is not here, and a Key Biscayne agent replies with the homes that fit, the questions to ask about each and a time to see them. Call or text (786) 914-1017 or send the form on this page.

Key Biscayne Condos Under $500,000: What Is on the Market

What the 6 condos under $500,000 for sale in Key Biscayne tell you about this market, counted from the listings on this page as of November 8, 2026. Every figure moves with the inventory. Ask about any of these homes or request a showing from this page.

Listings on this page6
Asking prices$419,000 to $495,000
Median asking price$454,500
Median price per square foot$712/sq ft
Median living area667 sq ft
BedroomsStudio to 1, median 1
Year built1964 to 1968, median 1966
Median association fee (condos)$531/mo
Median days on market123 days
Listings with a price cut4 of 6
With a pool1 of 6
On the water2 of 6
With ocean access1 of 6

Communities With the Most Listings

CommunityListingsMedian asking price
Cay Polynesia2$454,500
Galen Drive2$470,000

Counted from the listings on this page, BeachesMLS, as of November 8, 2026. Asking prices, not sale prices. Not an appraisal.

Key Biscayne Condos Under $500,000: Questions Buyers Ask

How much do condos under $500,000 cost in Key Biscayne?
The 6 condos under $500,000 for sale in Key Biscayne on this page ask from $419,000 to $495,000, a median of $454,500 or about $712 per square foot, from BeachesMLS listings as of November 8, 2026. Asking prices are not sale prices: the Key Biscayne housing market report shows what homes closed for.
How many condos under $500,000 are for sale in Key Biscayne right now?
6 condos under $500,000 are listed for sale in Key Biscayne as of November 8, 2026, and the typical one has been on the market 123 days; 4 of them have cut the asking price since listing. The list refreshes from the MLS through the day, and the alert on this page sends each new one the day it lists.
Which Key Biscayne communities have condos under $500,000 for sale?
Cay Polynesia (2, median $454,500) and Galen Drive (2, median $470,000) hold the most condos under $500,000 for sale in Key Biscayne today. The rest are spread across 2 more communities.
What are the association fees on condos under $500,000 in Key Biscayne?
The median association fee on the condos in this search is $531 a month, from $250 to $761, as the listings state them as of November 8, 2026. The fee depends on what the association covers, from insurance and reserves to staff and amenities; we read the budget, the reserve study and any assessment before you offer.

Before You Buy: The Guides

Get New Key Biscayne Condos Under $500,000 Before You Miss Them

Well priced homes can go under contract quickly. Leave your email on this page and BreakThru Realty sends you each new listing that matches this exact search, straight from the MLS, as it comes on the market. You can also save the search, ask about a home, schedule a showing or call an agent from this page.

Thinking About Selling Your Key Biscayne Condo?

See what similar condos have sold for, in your building and the ones it competes with, and find out whether a buyer working with BreakThru Realty is looking for a home like yours. BreakThru Realty works with hundreds of prequalified buyers searching for properties. We also gather the association documents a buyer will ask for before your listing goes live.

  • A value range built from comparable Key Biscayne sales, with the reasoning
  • Whether a buyer already working with BreakThru Realty is looking for a property like yours
  • The plan that reaches the rest of the market if no buyer on file fits
  • An estimate of your selling costs and what you would keep after closing
  • Your timing, privacy and goals, worked through before anything is listed

Explore My Condo Selling Options

Selling in Key Biscayne?

See what your home is worth from recent Key Biscayne sales, the days on market and today's buyer demand. See what my home would sell for.

Buying in Key Biscayne?

Every home, condo and townhome for sale in Key Biscayne, straight from the MLS and updated through the day. Find my Key Biscayne home.

Investing in Key Biscayne?

Multifamily, rental and value add property in Key Biscayne, with the taxes, association fees and price history on every listing. Evaluate Key Biscayne investments.

More Condos Searches in Key Biscayne

More Key Biscayne Real Estate

Condos Under $500,000 Near Key Biscayne

Key Biscayne Homes by Price Range

Key Biscayne housing market report · Key Biscayne Rentals: Homes & Apartments for Rent

Explore