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Key Biscayne One Hundred in Key Biscayne

Key Biscayne One Hundred
Homes for Sale in Key Biscayne, FL

By , Co-Founder, Momentum Realty · Updated October 20, 2026

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All 81 homes for sale in Key Biscayne, FL · median $1,250,000 · 75 condos for sale in Key Biscayne · 131 homes for sale in 33149 · Miami-Dade County homes for sale

Community in Key Biscayne · Miami-Dade County · ZIP 33149
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Photo via MIAMI MLS

Built fromLive MIAMI MLS data8 years of closingsUpdated twice daily

As of October 2026, Key Biscayne One Hundred in Key Biscayne, FL has 1 home for sale. As of October 2026, the MLS records 17 closed sales in Key Biscayne One Hundred in Key Biscayne, FL since 2018, the most recent in July 2026.

Live · Key Biscayne One Hundred Housing Pulse MIAMI MLS + public records Analysis by Momentum Realty · $3.5B+ sold · 10,000+ customers served · Top 1% in Florida (RealTrends)
Tempo
50%
Under contract
Miami-Dade: 18% (3,367 of 18,681)
1 · 1
For sale · pending
live counts, refreshed twice daily
1
Sold · last 12 mo
10-yr average: about 2 a year
Jon Brooks, Co-Founder of Momentum Realty
Jon's Read · written July 22, 2026

There is no closing activity recorded for KEY BISCAYNE ONE HUNDRED in the current window, and MLS listings do not identify a defined set of community amenities. That is not a knock on the address — it means the data set we would normally use to talk price, pace, and positioning simply is not there right now.

For a buyer or seller, that changes the approach. You cannot lean on a median or a days-on-market figure that does not exist. You lean on direct comps pulled from adjacent inventory, on agent-to-agent conversations, and on a realistic read of what similar product nearby is actually doing. That is a research problem, not a reason to avoid the community — but it does mean going in with an agent who will do that legwork rather than hand you a number.

Figures in this note are as of July 22, 2026. The live market numbers elsewhere on this page update nightly and are newer.

The 60-Second Overview

KEY BISCAYNE ONE HUNDRED shows zero recorded closings in the current MLS window and no community amenities identified from active listings, which puts it outside the range of communities we can currently size up with hard transaction data.

MIAMI REALTORS sales records identify 5 homes in KEY BISCAYNE ONE HUNDRED that have changed hands since 2016, built between 1973 and 1973 (median 1973), with a median living area of about 1,242 sq ft and a typical 2-bedroom, 2-bath layout; 100% are condominiums. Source: MIAMI REALTORS closed-sale history compiled by Momentum Research; counts reflect homes with a recorded MLS sale, not every home in the community.

Pre-construction details are compiled from public records, builder announcements and builder listings, and are subject to change without notice; figures are deemed reliable but not guaranteed. Momentum Research figures are our own analysis. This page describes homes, pricing and community attributes, not residents.

Quick Match

Who Key Biscayne One Hundred is best for.

Best for

  • Buyers comfortable relying on direct, agent-sourced comps rather than a published median
  • Sellers willing to have their agent build a custom pricing case from adjacent inventory
  • Anyone treating this address as a longer-timeline decision rather than a fast close

Probably not for

  • Buyers who need a confirmed price history before writing an offer
  • Sellers expecting to lean on recent local closings to set a list price
  • Anyone shopping specifically for a documented amenity package
The Area Market

The market around Key Biscayne One Hundred

Key Biscayne One Hundred is too small for its own price trend, so here is the market around it.

In ZIP 33149, 158 homes are on the market and 15% are under contract — a slower corner of Key Biscayne.

Across Miami-Dade County, 15,314 homes are active and 3,367 pending (18% under contract).

In ZIP 33149 (Key Biscayne), 134 homes closed in the last 12 months at a median of $1.49M ($921/sq ft), up 18.0% year over year, with a median 77 days on market. Right now 61 active and 13 pending listings — a buyer's market. See the live ZIP 33149 housing market and the Miami-Dade County market.

ZIP and county figures describe the wider market, not Key Biscayne One Hundred specifically. Momentum Research analysis of MLS records.

Homes For Sale Right Now in Key Biscayne One Hundred

Live MLS inventory for Key Biscayne One Hundred. Every active listing, what is under contract right now, and the last 12 months of closed sales, refreshed twice a day. Closed comps beat an algorithm's guess every time.

Pending · 187 days
$785,000
2 bd · 2 ba · 1,242 sqft · built 1973
100 Ocean Lane Dr 301, Key Biscayne, 33149
Listed by Fortune Christie's International Real Estate

Active and pending Key Biscayne One Hundred listings as of 2026-10-18, priced high to low. Based on information from the Southeast Florida Multiple Listing Service (SEFMLS) or from MIAMI Association of REALTORS(R) for the period 2018 through 2026. Tap any home to ask about it.

The Strategy

The Key Biscayne One Hundred buying strategy.

If we were buying in Key Biscayne One Hundred today, this is the order of operations we would run for our clients.

1

Underwrite the condition first. Price the roof, HVAC, and systems honestly before judging any list price; condition swings value here more than square footage alone.

2

Match the home to real comps. Recent sales of similar condition and lot, not the asking price, tell you what a home is worth.

3

Move deliberately, not desperately. Neither side has a decisive edge, so a well-prepared, fairly-priced offer wins without overpaying.

4

Line up financing and inspection early. A pre-approval and an inspection plan let you act fast and negotiate from evidence.

5

Keep an agent in your corner. The listing agent works for the seller; we represent you and prepare a hand-built valuation before any offer in Key Biscayne One Hundred.

The Quick Decision
Best Buy
Buyers or sellers who want a direct, comp-driven read rather than a headline stat.
Biggest Risk
With zero closings in the window, pricing guidance has to come from outside this snapshot.
Sweet Spot
Works best for someone who treats this as a research project, not a quick-decision purchase.
Avoid If
Skip it if you need a documented track record in hand before you'll engage.
The Deep Dive

When the data set is the story

A community with no closings in the tracked window is either extremely thin on turnover, extremely tightly held, or simply underrepresented in current MLS activity relative to its actual footprint. We cannot tell you which from this snapshot alone, and we would rather say that plainly than manufacture a median or a pace figure that is not supported.

The absence of a listed amenity set works the same way. It does not mean there is nothing there — it means the active listings pulled into this snapshot did not carry that detail. Anyone evaluating this address should treat the MLS snapshot as a starting point, not the full picture, and expect to do some direct diligence before drawing conclusions about value or fit.

“

The location and the amenities are priced into every listing in Key Biscayne One Hundred. The deal is won or lost on condition, the comps, and the renovation math.

Jon Brooks · Founder, Momentum Realty
Why Momentum

Why work with Momentum here

In a community with no recent closings to anchor a conversation, the value an agent adds is almost entirely in legwork: pulling the right adjacent comps, talking to agents who have worked the address directly, and being straight with you about what we do and do not know before you make an offer or set a list price.

The 15-Second Verdict

Key Biscayne One Hundred in 15 seconds.

Best forBuyers or sellers who want a direct, comp-driven read rather than a headline stat.
Biggest advantageThin recorded activity can mean less competition for information, if you're willing to dig for it.
Biggest riskWith zero closings in the window, pricing guidance has to come from outside this snapshot.
Sweet spotWorks best for someone who treats this as a research project, not a quick-decision purchase.
Avoid ifSkip it if you need a documented track record in hand before you'll engage.

Email me new listings in Key Biscayne One Hundred

One e-mail a day, only when a home lists here, with price, beds, baths and a link to every listing. Straight from the MLS feed; no account needed.

Equal Housing Opportunity. Every community is open to everyone; alerts are about homes, never about who lives here.

Ask an agent about Key Biscayne One Hundred

Have a question about the homes, fees, rules or commute here? A Momentum agent who works Key Biscayne One Hundred will answer, and the answer is published on this page for the next buyer.

Property facts only: homes, fees, rules, commute. Every community is open to everyone; agents do not answer questions about who lives here.

HOA, CDD & Fees

A note on who we are: Momentum Realty is a real estate brokerage. We are not the Key Biscayne One Hundred homeowners association, its management company or its developer, and we cannot help with dues, gate access, violations, amenity bookings or association documents. To reach the association, check your closing package, the recorded declaration at the county clerk, or search the association’s name at sunbiz.org for its registered agent. Call or message us to buy or sell a home in Key Biscayne One Hundred.
In short
  • HOA dues reported around $1,146/month (about $13,752/yr) · median of 30 MLS listings, most billed monthly
  • Any club/amenity membership is billed separately

Listings in this community report association dues of about $1,146 per month ($13,752 a year) — the median AssociationFee across 30 MLS records, normalised to a monthly figure; most are billed monthly. Dues change with budgets and can differ by section or product type; confirm the current figure with the association before you offer. Source: MLS listing records, 2026-10.

Confirm the current HOA dues, exactly what they cover, and any CDD bond or special assessment for a specific address before you offer.

Run Your Numbers

Tools for a Key Biscayne One Hundred buy.

Free calculators to pressure-test the real cost before you tour.

Mortgage paymentPrincipal, interest, taxes, and insurance on a specific price.Property taxMiami-Dade County millage and the homestead picture.Rent vs buyThe breakeven on owning in Key Biscayne One Hundred.Save Our HomesProject your homestead tax cap over time.
The takeaway

Selling here is won on condition and pricing to real comps, not an automated estimate. The right number comes from closed Key Biscayne One Hundred sales matched to your home.

Selling in Key Biscayne One Hundred

Price it to the comps and condition, not an automated estimate.

If you are thinking about selling in Key Biscayne One Hundred, the right list price comes from recent comparable sales matched to your home's condition and location, not an automated estimate.

What is your Key Biscayne One Hundred home worth?

Get a no-obligation home value based on real comparable sales in Key Biscayne One Hundred, not an automated guess. Tell us about your home and we will personally prepare your numbers and a pricing strategy. No obligation, no spam.

See all homes for sale in Key Biscayne →

Real comps, not an automated estimate.
The Verdict

Should you buy in Key Biscayne One Hundred?

An honest fit check. We will tell you when it is not your community.

Buyers comfortable relying on direct, agent-sourced comps rather than a published medianExcellent fit
Sellers willing to have their agent build a custom pricing case from adjacent inventoryExcellent fit
Anyone treating this address as a longer-timeline decision rather than a fast closeExcellent fit
Buyers who need a confirmed price history before writing an offerProbably not
Sellers expecting to lean on recent local closings to set a list priceProbably not
Anyone shopping specifically for a documented amenity packageProbably not

Data sources & freshness

Live listingsMIAMI MLS, refreshed twice daily (last: October 18, 2026)
Under-contract sharesMIAMI MLS records, as of 2026-09-20
Historical depthClosed-sale records back to 2018 (17 transactions analyzed)

Verify the primary sources yourself: Florida DOR · U.S. Census · FEMA flood maps · Citizens Property Insurance.

Momentum Research figures are our own analysis of MIAMI MLS records; MLS data is deemed reliable but not guaranteed. Methodology: how Momentum market scores are computed. Market metrics describe homes for sale and recent sales, not residents.

Recent Developments in Key Biscayne One Hundred

Development, infrastructure, retail, and school activity affecting Key Biscayne One Hundred, tracked by our team and summarized from public reporting and official sources, with links to the original coverage. Last updated October 2026.

  1. October 2026
    Development

    Casa Bella Residences opens at 1400 Biscayne Boulevard in Downtown Miami

    Related Group and Alta Developers completed the 56-story, 650-foot tower with 319 residences, including 10 penthouses. Closings are underway and first residents have moved in, with more than 90 percent of homes reported under contract. Construction began in November 2023.

    What it may mean for the marketAdds 319 completed homes to the downtown Biscayne corridor, close to existing transit, offices and dining. The site is about 4 miles north of Key Biscayne One Hundred.

    Source: Florida YIMBY
  2. October 2026
    Builder Activity

    Swire Properties breaks ground on Residences at Mandarin Oriental, Miami on Brickell Key

    Swire Properties started construction at 500 Brickell Key Drive and 750 Claughton Island Drive on two towers, 66 stories (850 feet) and 33 stories (426 feet). The project includes 326 residences and a 121-room hotel, with Moss as general contractor and completion scheduled for 2030.

    What it may mean for the marketAdds multi-year construction activity and future hotel and residential supply on Brickell Key, near the Brickell employment core. The site is about 3 miles northwest of Key Biscayne One Hundred.

    Source: Florida YIMBY
  3. October 2026
    Development

    Crescent Heights revises workforce housing tower plans at 824 Alton Road

    Revised plans call for a 39-story tower over 500 feet with 149 residences, up from 120, including 72 workforce units and 77 market-rate units. The developer is seeking height and density increases under the Live Local Act. The plan includes over 2,500 square feet of ground-floor retail and a 156-space parking podium; no approval has been reported.

    What it may mean for the marketIf approved, would add workforce-priced rental supply near Miami Beach job centers and shops. The site is about 4 miles northeast of Key Biscayne One Hundred.

    Source: Florida YIMBY
  4. October 2026
    Development

    Sweetbird North breaks ground at 95 NE 40th Street in the Miami Design District

    Miami Design District Associates and Raycliff Capital began an eight-story, 120,500 square foot building with more than 92,000 square feet of office and about 22,500 square feet of retail. Atria Health and Research Institute leased about 55,000 square feet and 26North will also join. Completion is expected in early 2028.

    What it may mean for the marketAdds office space and ground-floor retail in the Design District, increasing nearby daytime employment and shopping options. The site is about 6 miles north of Key Biscayne One Hundred.

    Source: Florida YIMBY
  5. September 2026
    Development

    University of Miami agreement with Coral Gables would add a hospital of up to 100 beds

    A development agreement would allow construction of a hospital with up to 100 beds on the university's Coral Gables campus, offering inpatient, outpatient and emergency care. The agreement would also reshape the campus, which includes the Gables Village residential complex of 1,458 beds slated for mid-2029. Cost, size and timeline for the hospital were not stated.

    What it may mean for the marketA campus hospital would add inpatient and emergency care capacity and healthcare employment in the Coral Gables area. The site is about 7 miles west of Key Biscayne One Hundred.

    Source: Miami Today
  6. September 2026
    Civic

    Miami-Dade commissioners adopt $14.26 billion budget with flat tax rate

    County commissioners approved the fiscal year 2026-27 budget after a meeting that ran from Thursday afternoon into Friday morning. The operating property tax rate stays flat at 4.57 mills. The county says the plan prioritizes public safety, parks and transportation amid slowing revenue growth.

    What it may mean for the marketA flat operating millage keeps the county's property tax rate steady for owners across Miami-Dade for the coming fiscal year. The site is about 4 miles northwest of Key Biscayne One Hundred.

    Source: Local 10 News

Development alerts for Key Biscayne One HundredGet a short monthly email when something new is approved, funded, or opens near Key Biscayne One Hundred.

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Summaries reflect public reporting and official sources linked above as of the dates shown. Project details, timelines, and approvals can change. Commentary on potential market effects is general observation, not investment advice or a prediction for any specific property. For the freshest items across the whole region, see This Week in Northeast Florida.

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Common questions about Key Biscayne One Hundred

Where is Key Biscayne One Hundred?

Key Biscayne One Hundred is a community in Key Biscayne, Miami-Dade County, Florida, ZIP 33149.

Are there homes for sale in Key Biscayne One Hundred right now?

Yes — 1 active and 1 pending listings as of the last feed refresh (twice daily). They are listed on this page.

Does Key Biscayne One Hundred have an HOA or CDD?

No HOA is on record for Key Biscayne One Hundred in our data. Verify dues, what they cover, and any special assessment for a specific address before you offer.

Answers are generated from county property records, MLS feeds and the figures on this page, as of the page date; deemed reliable but not guaranteed.

Every Home for Sale in Key Biscayne One Hundred Right Now (1)

All 1 active and pending Key Biscayne One Hundred listings with a detail page, newest first, refreshed twice a day from the MLS.

Nearby Communities

Explore more neighborhoods near Key Biscayne One Hundred with Momentum Realty’s local guides.

Ocean Village Condo0.0 mi away · median $712K, 6 sales/12 moIsland Breakers Condo0.0 mi away · 3 for saleThe Pyramids Key Biscay0.1 mi away · 1 for saleOcean Lane Plaza Condo0.1 mi away · 2 for saleCommodore Club West Condo0.1 mi away · median $1.04M, 8 sales/12 moThe Palms Of0.1 mi away · 2 for saleIsland House Apt Inc Co0.1 mi away · 4 for sale

Browse all neighborhood guides →

Thinking of selling in KEY BISCAYNE ONE HUNDRED? 1 recorded closings (window ending 2026-09-20). See the Miami-Dade County sell-now-or-wait data, what made 201,552 Florida listings fail in the last 12 months, or compare a cash offer vs. listing. Compiled from MLS records; deemed reliable but not guaranteed.
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