445 Grand Bay Dr · Key Biscayne, FL 33149

Grand Bay Residences

14-story mid-rise, completed 1996, 137 residences in Key Biscayne. 2 for sale and 1 for rent on Nov 2, 2026.

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At a glance Grand Bay Residences (445 Grand Bay Dr, Key Biscayne) is a 14-story, 137-unit building completed in 1996. As of Nov 2, 2026, 2 units are for sale and 1 is for rent; the median closed price was $1,006 per square foot over 5 sales in the last 24 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
2
For rent
1
Median $/SF
$1,0065 sales · 24 mo
Sold
2last 12 months
Built
1996
Floors
14
Residences
137county
Flood zone
AEFEMA
Owner-occupied
59%
Avg. unit
3,220sq ft

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

On the market at Grand Bay Residences.

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

Grand Bay Residences, 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.

37 units seen · MLS via Bridge IDX · as of Nov 2, 2026
  • For sale 1
  • Under contract 1
  • For rent 1
  • Sold or leased, last 12 months 5
  • Seen in the MLS before that 29
  • No MLS record seen 95
010203040809101115161812110501020304080910111518121105Floors 13 to 14: no unit seen in the MLSFloors 13 to 14: no unit seen in the MLS

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

Units seen37of 137 residences on record
Floors with units12floors 1 to 12
Lines11stacks of units, by number

Closed $/SF figures use the 5 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.

The largest typical unit is line 03, a median 3,480 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 0142,530 sf2–1 sale, too few
Line 0262,950 sf2–2 sales, too few
Line 0333,480 sf4–1 sale, too few
Line 0433,290 sf31–
Line 0823,475 sf31–
Line 0953,480 sf3––
Line 1052,950 sf3–1 sale, too few
Line 1132,490 sf2––
Line 1521,760 sf2––
Line 1621,760 sf2––
Line 1821,760 sf21–

6 units in the record sit outside this grid (412, 414, 605, 807, 1006, PH-1A): 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 Grand Bay Residences.

Activity as of Nov 2, 2026
  • Resale +39%. The median closed price moved from $748/SF in 2020 (5 sales) to $1,036/SF in 2025 (3 sales), the first and last years with three or more recorded sales.
Read the full record 4 paragraphs and 13 facts, every figure from the MLS and county record

Built in 1996, Grand Bay Residences is a 14-story mid-rise at 445 Grand Bay Dr in Key Biscayne. The Miami-Dade Property Appraiser lists 137 residential units, averaging 3,220 SF of living area. It was designed by CFE Architects. The condo archive records it as waterfront (ocean).

On November 2, 2026, two units were listed for sale, asking $4M to $19M ($1,215 to $2,241/SF). One more was under contract. Two sales closed between November 2, 2025 and November 2, 2026, from $2.7M to $3.5M, $925 and $1,006/SF. The year before saw three closed sales. The MLS holds 32 closed sales here going back to 2019; among years with three or more sales, 2025 set the high at a median $1,036/SF. Three-bedroom-plus units made up four of the 5 sales in the last 24 months, at a median $3,125,000.

One unit was offered for rent at $19,900 a month. Four leases were signed over the same 12 months, at a median $10,500 a month (range $8,900 to $13,000).

About 59% 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
445 Grand Bay Dr, Key Biscayne 33149
Neighborhood
Key Biscayne
Architect
CFE Architects
Front desk / mgmt
(305) 365-1771
Year built
1996
Floors
14
Residences (county-verified)
137
Owner-occupied
59% of residences
Avg. unit size
3,220 sq ft
Total living area
441,180 sq ft
County condo folios
137
Waterfront
Yes / Ocean
Recorded MLS listings
67

The numbers at Grand Bay Residences.

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, 2019 to 2026. Count in the tooltip.

$675$1,349$7662019$7482020$7632021$1,3492022$9832023$1,2302024$1,0362025$9662026$675$1,349$766'19'20'21$1,349'22'23$1,230'24'25$966'26

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

Year by year, every recorded closing
YearSalesMedian $/SFLeasesMedian rent
2026 (to date)2$966*3$11,000/mo
20253$1,0363$10,500/mo
20241$1,230*4$12,500/mo
20235$9835$10,500/mo
20221$1,349*5$12,750/mo
202114$7634$9,150/mo
20205$7484$6,050/mo
20191$766*1$8,500/mo*

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

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

Median closed $/SF in 2020: $748 (5 sales). In the last 24 months: $1,006 (5 sales). Change: +34%.

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 32 sales · 29 leases on record since 2019

Closed sales Nov 2, 2024 to Nov 2, 2026 · 5

UnitBDBASFAskedClosed$/SFClose dateDOM
30344.53,480$3,850,000$3,500,000$1,006Feb 6, 202645
802232,950$3,149,000$2,730,000$925Feb 6, 202647
60132.52,570$2,790,000$2,662,500$1,036Sep 12, 202516
602332,950$2,980,000$2,750,000$932Aug 15, 202588
1210342,950$4,850,000$4,500,000$1,525Jul 11, 202592

Leases signed Nov 2, 2025 to Nov 2, 2026 · 4

UnitBDBASFAsked/moLeased/mo$/SF/moLease dateDOM
71123.52,570$10,000/mo$10,000/mo$3.89Jun 29, 202640
412221,760$12,000/mo$11,000/mo$6.25May 18, 202633
602332,950$13,500/mo$13,000/mo$4.41Jan 1, 202687
20123.52,490$8,900/mo$8,900/mo$3.57Nov 12, 202520

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 Grand Bay Residences.

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

Due 2026

Due by statute by December 31, 2026, 30 years after 1996, then every 10 years.

What the deadline means
  • Based on year built 1996 (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 Grand Bay Residences

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 Grand Bay Residences's closed sales and what is listed now. Then we talk it through.

Phone or email. One is enough.

Thinking about

Goes to Enrique only. No mailing list.

Looking here?

Get alerts when a unit lists or sells

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

Phone or email. One is enough.

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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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