Keystone Islands
Five dredged island plats of the 1950s in Biscayne Bay
ALERTS FOR KEYSTONE ISLANDS
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About Keystone Islands
Keystone Islands is five recorded plats of dredged land in Biscayne Bay, Keystone Island Numbers One through Five, covering about 138 acres between them. The houses went up quickly: on the first island alone, most of the parcels date from 1954 to 1957. The plats run through the county books from 53 to 68, which puts the work across the middle and later 1950s. The islands are not a separate gated community despite the name. They lie inside the Keystone Point security guard taxing district the county created in 1989, along with Coronado Harbour and the old Aviation Country Club blocks.
Zilbert features 8 single family homes for sale in Keystone Islands today.
For Sale
8 single-family homes for sale in Keystone Islands.
| Address ⇅ | Price ⇅ | Listed ⇅ |
|---|---|---|
| 13390 Biscayne Bay DriveHome 6 bed · — SqFt | $15,490,000 | 7/29/267/29 |
| 12685 N Bayshore DriveHome 6 bed · 6,146 SqFt | $9,250,000$1,505/SqFt | 10/23/2510/23/25 |
| 13305 Biscayne Island TerraceHome 4 bed · — SqFt | $4,199,000 · ▼12.5% | 6/8/266/8 |
| 2273 Bayview LaneHome 4 bed · 2,900 SqFt | $3,875,000$1,336/SqFt | 8/10/268/10 |
| 2341 Keystone BoulevardHome 4 bed · 2,915 SqFt | $3,848,000$1,320/SqFt · ▼89.9% | 9/5/269/5 |
| 12810 Cyprus RoadHome 3 bed · 2,760 SqFt | $3,500,000$1,268/SqFt | 8/5/268/5 |
| 12990 Keystone TerraceHome 4 bed · 3,084 SqFt | $3,350,000$1,086/SqFt | 9/3/269/3 |
| North Miami homeHome 3 bed · 2,262 SqFt | $3,100,000$1,370/SqFt · ▼4.6% | 7/5/267/5 |
Pending Sales
Under contract, awaiting closing. Once the property has closed, the sold price will be available.
No homes under contract in Keystone Islands at the moment.
Recently Sold Homes
Sorted by date.
| Address ⇅ | Sold Price ⇅ | % of Ask ⇅ | Closed ⇅ |
|---|---|---|---|
| 2370 Bayview LaneHome 6 bed · 5,750 SqFt | $7,530,000list $8,600,000 | 88% | 7/30/267/30 |
| 2310 Bayview LaneHome 6 bed · 4,822 SqFt | $4,200,000list $4,999,000 | 84% | 7/27/267/27 |
| 12885 N Bayshore DrHome 4 bed · 3,658 SqFt | $5,400,000list $5,750,000 | 94% | 5/12/265/12 |
| 13000 Arch Creek TerHome 4 bed · 2,687 SqFt | $2,700,000list $2,850,000 | 95% | 4/29/264/29 |
| 12430 Keystone Island DriveHome 3 bed · 2,048 SqFt | $1,500,000list $1,750,000 | 86% | 2/25/262/25 |
| 13225 Arch Creek TerraceHome 6 bed · 4,547 SqFt | $7,500,000list $7,899,000 | 95% | 2/6/262/6 |
| 12855 Maple RoadHome 4 bed · 2,750 SqFt | $3,140,000list $3,600,000 | 87% | 1/15/261/15 |
| 12488 N Bayshore DriveHome 3 bed · 2,179 SqFt | $2,000,000list $2,175,000 | 92% | 12/12/2512/12/25 |
Map
Nearby
Averages are weighted as total dollars over total square feet. We calculate averages based on closed sales in the MLS for the past 12 months, as of July 30, 2026. Averages are based on properties that are listed or sold for $350,000 and greater. Additional reports at all price points are available here. Price-per-square-foot figures are rounded to the nearest dollar, up or down. Where fewer than 5 closed sales exist in the window, we report the count rather than an average.
| Homes · Avg Selling Price | $1,189/SqFt · 9 sales |
|---|---|
| Asking today, all prices | $3,100,000 to $15,490,000 |
The page above reports from $350,000; this table has no price floor. Same 12-month window, same exclusions before 1990, same minimum sample of 5.