ActiveOpen House
$3,950,000
Est. $26,301/mo

510 Harbor Gate Way, Longboat Key, FL, 34228

$778/sqft·Bay Isles

4 bd6 ba5,080 sqft3 car garageSingle Family
Listed by MICHAEL SAUNDERS & COMPANY· Last updated · MLS# A4671696

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Pricing, comps, HOA, the neighborhood. Answers before you fill out anything.

Est. monthly payment
$26,301/mo
Down payment (20%)
$790,000
Property taxes
$3,517/mo
HOA
$2,500/yr
Rate assumed
6.8% · 30 yr
View full breakdown

At a glance

Single family
Built 1996
Waterfront
Canal Front
Private pool
Heated
3 car garage
Circular Driveway
0.44 acres
Lot size

Open house

Sunday, Sep 13· 5:00 PM to 8:00 PM

From south Longboat Key go north on Gulf of Mexico Drive to south gate of Bay Isles, after talking to guard gate take immediate right through green gates, first left 1st home on the right.

About this home

Built-in FeaturesCeiling Fans(s)High CeilingsLiving Room/Dining Room ComboOpen FloorplanPrimary Bedroom Main FloorSaunaSolid Surface Counters

510 Harbor Gate Way is a 1996-built home in Bay Isles, Longboat Key. Inside you'll find 4 bedrooms, 6 bathrooms, and 5,080 square feet of living space. Listed at $3,950,000 (about $778/sqft), 301 days on market. Flood zone AE - confirm flood insurance requirements with your lender. HOA runs $2,500 annually.

From the listing

A Waterfront Work of Art. Experience a one-of-a-kind waterfront residence on Longboat Key — now offered at an exceptional new value. Designed around three interconnected circular "pods," the residence flows like a choreographed dance. There are no awkward hallways, no wasted corners, no spaces that feel like afterthoughts. Curved walls carry throughout every room — even into the garage — creating a cohesive design statement that's genuinely rare in residential construction at any price point. This architectural masterpiece is a sculptural composition of flowing living spaces connected by custom corridors, delivering remarkable privacy, abundant natural light, and seamless indoor–outdoor living. The dramatic Great Room pod showcases soaring wood-paneled ceilings and expansive walls of glass that frame tranquil water views. The circular primary suite is a private retreat featuring a spa-inspired bath with dual showers, a lounge area, private office, and direct access to the pool and spa terrace. At the heart of the home, the striking circular kitchen is both artful and functional, centered around a curved island beneath a two-story ceiling and skylight, with a thoughtfully designed radial appliance layout. Two en-suite guest bedrooms open to private patios, while the fully self-contained Secondary Primary Suite above the impressive 32' x 23' three-car garage offers independent HVAC, a luxury bath with steam shower and sauna, and flexible living space ideal for extended guests or multigenerational living. Outdoors, the property embraces the waterfront lifestyle with protected deep sailboat water, a private dock with a 12,000-pound lift, and a resort-style pool and spa designed for entertaining and relaxation. Located behind the 24-hour guarded gates of Bay Isles, residents also enjoy exclusive access to the Bay Isles Beach Club on the Gulf of Mexico.

The essentials

Built
1996
Price / sqft
$778
On market
304 days
Annual tax
$42,201
HOA
$2,500/yr
Flood zone
AE
Lot
19,127 sqft
Type
Single Family Residence

Location

510 Harbor Gate Way
Longboat Key, FL, 34228·34228 - Longboat Key
Type
Single Family Residence
Year Built
1996
Lot
19,127 sqft
Cooling
Central Air
Heating
Central, Electric, Heat Pump
Parking
Circular Driveway, Driveway
Pool
Gunite, Heated, In Ground, Outside Bath Access, Tile
Waterfront
Canal Front
Days on Market
304
Built-in Features
Ceiling Fans(s)
High Ceilings
Living Room/Dining Room Combo
Open Floorplan
Primary Bedroom Main Floor
Sauna
Solid Surface Counters
Solid Wood Cabinets
Split Bedroom
Vaulted Ceiling(s)
Walk-in Closet(s)
Wet Bar
Window Treatments
Hurricane Shutters
Lighting
Private Mailbox
Rain Gutters
Deed Restrictions
Gated Community - Guard
Bar Fridge
Built-in Oven
Convection Oven
Dishwasher
Disposal
Dryer
Electric Water Heater
Exhaust Fan
Gas Water Heater
Ice Maker
Microwave
Range
Refrigerator
Tankless Water Heater
Washer
Wine Refrigerator

Elementary

Southside Elementary

Middle

Booker Middle

High

Booker High

Districts can re-zone, so verify directly with the district before relying on these.

Flood Zone AE

Annual Tax (2024)

$42,201

Parcel #

0008150008

Taxes reflect the most recent assessment in the MLS feed. Actual tax owed can vary, so confirm with the county property appraiser before closing.

Subdivision

Bay Isles

County

Sarasota

MLS Area

34228 - Longboat Key

Lot Size

19,127 sqft

Flood Insurance RequiredFloodZoneCity LimitsPrivatePaved
HOA
$2,500/yr
Ken Kanderfer
Date
Event
Price
8/28/2026
Price change
Source: Stellar MLS #A4671696
$3,950,000-10.1%
$778/sqft
Price change
Source: Stellar MLS #A4671696
$4,395,000-13.8%
$865/sqft
11/11/2025
Listed for sale
Source: Stellar MLS #A4671696
$5,100,000
$1,004/sqft
Est. monthly payment$26,301/mo
Principal & interest$20,601
Property taxes$3,517
Insurance$1,975
HOA$208
Down payment20% · $790,000
Interest rate6.80%
Loan term

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Property taxes are this home's actual annual bill from the MLS, divided by twelve. Insurance estimated at 0.60%. HOA is the fee reported on the listing. Rate defaults to 6.8% on a 30-year fixed. Tap a pencil to use your own numbers. Estimates only, not a loan quote.

Offer Insights

Choose an offer strength

List price: $3,950,000
$3.70M – $3.95M
93.8% – 100% of listTops out right at the list price
80% of listList price
22 of the last 43 home closings in 34228 landed at this number or higher (51%). The median one sat 95 days before it went under contract, and this one is on day 304 after a $1,150,000 cut.

Sample: 43 closed home sales in 34228 over the last 8 months, Stellar MLS. A starting point, not a guarantee.

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