151 Crandon Blvd · Key Biscayne, FL 33149

Emerald Bay at Key Colony

12-story mid-rise, completed 1980, 283 residences in Key Biscayne. 4 for sale and 6 for rent on Nov 2, 2026.

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At a glance Emerald Bay at Key Colony (151 Crandon Blvd, Key Biscayne) is a 12-story, 283-unit building completed in 1980. As of Nov 2, 2026, 4 units are for sale and 6 are for rent; the median closed price was $816 per square foot over 15 sales in the last 12 months. FEMA flood zone AE. Source: Miami Assoc. of REALTORS® MLS via Bridge IDX, Miami-Dade Property Appraiser records and the FEMA flood map.

6 photos from my condo archive

For sale
4
For rent
6
Median $/SF
$81615 sales · 12 mo
Sold
15last 12 months
Built
1980
Floors
12
Residences
283county
Flood zone
AEFEMA
Owner-occupied
55%
Avg. unit
1,766sq ft

MLS via Bridge IDX · as of Nov 2, 2026 · How these numbers are made

On the market at Emerald Bay at Key Colony.

The weekly MLS snapshot, newest asks first. Each unit opens its full listing: photos, taxes, history. Or check the live feed for today's inventory.

Snapshot as of Nov 2, 2026.

Listings matched to this building's recorded addresses. I don't have to be the listing agent to show you any unit or to negotiate for you. Search condos in 33149

Emerald Bay at Key Colony, floor by floor.

Every unit the MLS has recorded here, placed by its unit number: floors up, lines across, each column as wide as the units in it. Amber is for sale today (a unit listed both for sale and for rent is amber). Hover or tap a unit to read its record.

122 units seen · MLS via Bridge IDX · as of Nov 2, 2026
  • For sale 3
  • Under contract 6
  • For rent 6
  • Sold or leased, last 12 months 26
  • Seen in the MLS before that 81
  • No MLS record seen 178
0004050610202324252629303134363840421211050004061022242629313436384042121105

Tap a unit to read its record here. Amber and white units open their listing page.

Units seen122of 283 residences on record
Floors with units12floors 1 to 12
Lines27stacks of units, by number

Closed $/SF by height sales in the 24 months to Nov 2, 2026

Upper floorsfloors 9 to 12$816/SF · 7 sales
Middle floorsfloors 5 to 8$802/SF · 12 sales
Lower floorsfloors 1 to 4$776/SF · 7 sales

Closed $/SF figures use the 26 recorded sales of these units in the 24 months to Nov 2, 2026; a median needs three. Floor, line and size are the record's. Views and orientation are not in it and are not shown.

Line 02 closed highest per square foot: a median $830/SF over 3 sales in 24 months. The largest typical unit is line 25, a median 3,083 sf over 3 units seen, recorded with 4 bedrooms.

The lines what the MLS record holds for each stack of units
LineUnits seenTypical sizeBedsOn the marketClosed $/SF · 24 mo
Line 0041,488 sf2–1 sale, too few
Line 0261,506 sf2–$830 3 sales
Line 0441,532 sf2–1 sale, too few
Line 0551,821 sf21–
Line 0621,547 sf2–1 sale, too few
Line 0721,486 sf2––
Line 1022,047 sf21–
Line 2041,488 sf21–
Line 2271,547 sf2–2 sales, too few
Line 2351,778 sf2––
Line 2432,010 sf4––
Line 2533,083 sf411 sale, too few
Line 2651,532 sf2–$751 5 sales
Line 2841,532 sf2–2 sales, too few
Line 2941,532 sf2––
Line 3062,001 sf321 sale, too few
Line 3131,547 sf2–1 sale, too few
Line 3361,546 sf21–
Line 3481,584 sf21–
Line 3531,547 sf22–
Line 3691,532 sf222 sales, too few
Line 3751,532 sf2––
Line 3841,547 sf212 sales, too few
Line 3941,547 sf2––
Line 4041,532 sf212 sales, too few
Line 4161,532 sf211 sale, too few
Line 4241,547 sf2–1 sale, too few

6 units in the record sit outside this grid (127, 202 & 204, 202-204, 208, 345, 543): penthouse, townhouse or ground-level numbers, or lines seen only once or twice.

How this is drawn: a unit's floor and line come from its MLS unit number alone (5614 is floor 56, line 14). A cell exists only where the MLS has recorded a listing, a closing or a lease; a blank means no record was seen, not that no unit exists. Column widths follow each line's median recorded living area. Pre-construction towers and buildings with a thin record have no drawing.

Floor and line from the MLS unit number; a blank cell means no record was seen. How these numbers are made

The read on Emerald Bay at Key Colony.

Activity as of Nov 2, 2026
  • Resale +44%. The median closed price moved from $571/SF in 2020 (5 sales) to $823/SF in 2026 (14 sales), the first and last years with three or more recorded sales.
  • Gross rental yield 6.1%. A year of rent at the median $4.14/SF/mo (15 leases) against the median $816/SF sale (15 sales), both over 12 months, before HOA, taxes and vacancy.
  • Asks run +36% against closings. Sellers ask a median $1,106/SF (4 listings) against $816/SF closed (15 sales, 12 months). That gap is negotiation room. Bring the comps.
  • Sells in a median 69 days. Days on market across the 15 sales closed in the last 12 months.

Where it ranks citywide, condo buildings in 17 Miami neighborhoods

  • #56 of 345 · biggest $/sf change since 2021+45.6% median $/SF since 2021 ($560 to $816) · n 40 · Calendar 2021 vs Oct 2025 to Sep 2026

See the full rankings · How rankings are made

Read the full record 4 paragraphs and 13 facts, every figure from the MLS and county record

Built in 1980, Emerald Bay at Key Colony is a 12-story mid-rise at 151 Crandon Blvd in Key Biscayne. The Miami-Dade Property Appraiser lists 283 residential units, averaging 1,766 SF of living area. MLS and county records use the legal name The Emeraldbay @ Key Colo.

On November 2, 2026, four units were listed for sale, asking $1.3M to $2.6M (median ask $1,106/SF across 4 listings). Three more were under contract. 15 sales closed between November 2, 2025 and November 2, 2026, from $780K to $3.4M, a median $816/SF, after a median 69 days on the market. In the 12 months before that, 12 sales closed at a median $768/SF, so the median rose 6%. The MLS holds 94 closed sales here going back to 2020; among years with three or more sales, 2026 set the high at a median $823/SF. That 12-month median ranks 17th of the 23 Key Biscayne buildings with at least three sales in the same window. Two-bedrooms made up 20 of the 27 sales in the last 24 months, at a median $1,187,500.

Six units were offered for rent at $5,700 to $13,500 a month. 15 leases were signed over the same 12 months, at a median $6,350 a month (range $4,200 to $14,000).

About 55% of the residences are owner-occupied according to county records.

Sources: Miami Assoc. of REALTORS® MLS via Bridge IDX (activity as of November 2, 2026), Miami-Dade Property Appraiser records and my condo archive. Blanks mean the record doesn't state it; nothing here is estimated.

The record

Address
151 Crandon Blvd, Key Biscayne 33149
Neighborhood
Key Biscayne
Front desk / mgmt
(305) 361-6947
Year built
1980
Floors
12
Residences (county-verified)
283
Owner-occupied
55% of residences
Avg. unit size
1,766 sq ft
Total living area
499,723 sq ft
County condo folios
283
Recorded MLS listings
220
Recorded as
The Emeraldbay @ Key Colo
Also recorded as
151 Crandon Bl

The numbers at Emerald Bay at Key Colony.

Every sale and lease the MLS has recorded at this address, sales first.

MLS via Bridge IDX · as of Nov 2, 2026

Median $/SF by year closed

Every recorded sale at this address, 2020 to 2026. Count in the tooltip.

$412$823$5712020$5602021$7582022$7702023$7852024$7602025$8232026$412$823$5712020$5602021$7582022$7702023$7852024$7602025$8232026
Year by year, every recorded closing
YearSalesMedian $/SFLeasesMedian rent
2026 (to date)14$82315$6,350/mo
202511$76010$6,000/mo
202410$78516$6,250/mo
202311$77014$6,750/mo
202217$75813$6,500/mo
202126$56021$5,000/mo
20205$57120$4,225/mo
2019––2$3,950/mo*

* Fewer than three closings that year: the figure is the closing itself or the average of two, too few for a median.

Closed $/SF by unit size

Median $/SF of the sales in the 12 months to Nov 2, 2026, with the count beside each bar.

1 bedroom$707/SF · 1 sale*
2 bedrooms$816/SF · 11 sales
3+ bedrooms$1,087/SF · 3 sales

* Pale bars: fewer than three sales, so the bar is the sale itself or the average of two, too few for a median.

Medians need three or more sales. How these numbers are made

Own here? See how the building moved since you bought.

Median closed $/SF in 2020: $571 (5 sales). In the last 12 months: $816 (15 sales). Change: +43%.

This is the building's movement, not your unit's value. Floor, view, line and condition move a unit's price more than the building does. Only years with three or more recorded sales are listed.

Get your unit's value →
Show all closings 94 sales · 111 leases on record since 2020

Closed sales Nov 2, 2024 to Nov 2, 2026 · 27

UnitBDBASFAskedClosed$/SFClose dateDOM
122221,467$1,438,000$1,380,000$941Oct 15, 202661
241221,532$1,500,000$1,400,000$914Sep 14, 2026132
626221,532$1,295,000$1,250,000$816Sep 2, 2026149
702221,506$1,399,000$1,250,000$830Jul 31, 2026379
12711.51,103$835,000$780,000$707Jul 20, 2026125
602221,469$1,060,000$1,060,000$722Jul 7, 20260
1002221,506$1,695,000$1,705,000$1,132Jun 26, 202614
600221,506$1,235,000$1,140,000$757Jun 23, 20265
122243.53,127$3,400,000$3,400,000$1,087Jun 5, 202623
136221,532$1,450,000$1,400,000$914Apr 10, 20267
1226443,127$2,750,000$2,100,000$672Apr 10, 202677
928221,532$1,295,000$1,250,000$816Mar 30, 202612
1136332,328$2,900,300$2,575,000$1,106Mar 30, 202698
206221,547$1,235,000$990,000$640Jan 16, 202611
628221,532$1,000,000$900,000$587Nov 14, 2025188
926221,532$1,295,000$1,150,000$751Aug 15, 202597
342221,547$1,275,000$1,200,000$776Aug 11, 202517
138221,547$900,000$850,500$550Jul 15, 202522
725443,083$2,750,000$2,750,000$892Jul 7, 202516
630332,001$2,400,000$2,400,000$1,199Jul 7, 202563
604332,010$2,200,000$1,950,000$970May 23, 20250
540221,532$975,000$900,000$587Apr 17, 2025100
140221,532$1,050,000$975,000$636Apr 16, 202593
838221,547$1,330,000$1,220,000$789Apr 14, 2025173
1031221,547$1,395,000$1,175,000$760Jan 6, 202577
526221,532$1,090,000$900,000$587Dec 20, 202485
626221,532$1,295,000$1,260,000$822Dec 18, 202444

Leases signed Nov 2, 2025 to Nov 2, 2026 · 15

UnitBDBASFAsked/moLeased/mo$/SF/moLease dateDOM
524221,532$7,250/mo$6,700/mo$4.37Oct 26, 202688
137221,532$5,800/mo$5,800/mo$3.79Oct 15, 202640
12711.51,103$4,300/mo$4,200/mo$3.81Oct 15, 202665
120221,454$6,000/mo$5,750/mo$3.95Sep 30, 202693
441221,532$6,500/mo$6,200/mo$4.05Sep 16, 202632
822221,547$6,500/mo$6,000/mo$3.88Sep 3, 202627
50044.52,957$15,000/mo$14,000/mo$4.73Sep 1, 202651
128221,532$6,000/mo$5,700/mo$3.72Jul 31, 202681
441221,532$6,500/mo$6,350/mo$4.14Jul 22, 202651
1036221,532$7,000/mo$6,500/mo$4.24Jul 22, 2026238
525443,083$13,500/mo$13,500/mo$4.38Jun 30, 2026382
926221,532$6,700/mo$6,500/mo$4.24Jun 26, 2026159
1031221,547$6,500/mo$6,850/mo$4.43Jun 19, 20266
939332,330$13,000/mo$13,000/mo$5.58Apr 1, 202612
336221,532$5,900/mo$5,700/mo$3.72Jan 1, 2026172

Data: Miami Assoc. of REALTORS® MLS via Bridge IDX, as of Nov 2, 2026. Listings matched to this building's recorded addresses; pending includes under-contract. Closed listings shown as records only, no photos. Blanks mean the record doesn't state it. How these numbers are made

The file on Emerald Bay at Key Colony.

The rules on record, the documents in my files, the two Florida checks every buyer should run, and the buildings around it. Each card opens.

FEMA flood zone

AE

Inside FEMA's Special Flood Hazard Area. A federally backed mortgage requires flood insurance here.

What the zone means
  • The 1% annual chance ("100-year") flood area, with a base flood elevation set.
  • Base flood elevation 9 ft (NGVD29).
  • The zone is a map line, not a premium. Ask the association for its master flood policy, and get a flood quote for the specific unit before you commit.

FEMA National Flood Hazard Layer, checked at the building's mapped location on Oct 12, 2026. Open the official map ↗

Milestone structural inspection

Turned 30 in 2010

The statute's first deadline for a building this age was December 31, 2024, then every 10 years.

What the deadline means
  • Based on year built 1980 (county record). The statute counts from the certificate of occupancy date, which can differ.
  • The association must give every owner the inspector's summary. Ask for it, and for the structural integrity reserve study, before you commit.

Fla. Stat. § 553.899(3) ↗ and Miami-Dade recertification ↗, read Oct 9, 2026. What the deadline means for buyers

Nearby

Around Emerald Bay at Key Colony

5 more nearby

Compare with the two nearest →Every Key Biscayne building →Distances are straight-line. Building data from Miami Assoc. of REALTORS® MLS records via Bridge IDX.

Own here, or looking here

Owners: tell me your unit and I'll prepare its value myself. Buyers and renters: I'll tell you when a unit here lists or sells. Either way it starts a conversation with me, not a mailing list.

Own here?

Get your unit's value

Tell me your unit and I'll prepare its value myself, from Emerald Bay at Key Colony's closed sales and what is listed now. Then we talk it through.

Phone or email. One is enough.

Thinking about

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Looking here?

Get alerts when a unit lists or sells

When a unit at Emerald Bay at Key Colony lists or sells, I'll let you know. I send these myself, not a robot.

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Enrique Ponte Ojeda on a balcony overlooking the water in Miami
I read the building before you buy or sell a unit in it.Closed history, the association's rules, what is really for sale and what it should trade at. Then we talk.
Enrique Ponte Ojeda
Licensed Florida Real Estate Agent · Carmona Realty Group

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