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510 HARBOR GATE WAY

House For Sale
$4,395,000

BTC: 71.11650485

ETH: 2,517.18213058

-$705K (2026/02/23)
205 days
Waterfront
4 bds
5 ba
5,080 sqft

Overview

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.

Location

Florida • LONGBOAT KEY • 34228 • House • For Sale • Waterfront

Details

Type:
Residential
Parking:
Circular Driveway / Driveway
Year Built:
1996
Lot:
0.44 Acres
Heating:
Central / Electric / Heat Pump
Price/sqft:
$865
Cooling:
Central Air
HOA:
$2,500

Valuation

Our model vs. what's actually selling nearby.
Estimate
$2,469,500
$1.6M – $4.0M
Confidence Low
List vs. estimate
$1.9M above estimate
List $4,395,000 · +78.0%
Our model says this listing is priced above recent comparable activity. Room to negotiate.
Price per sq ft
$865
+1.8% vs. city median $849
Based on
12 MLS comparables
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$42,200
2024
HOA
$2,500/yr
24-Hour Guard, Escrow Reserves Fund, Private Road
Pool
Gunite
View
Pool, Trees/Woods
Waterfront
Canal Front
Garage
3 car garage
Pets
Allowed
All facts and features

  • Flooring

    • Carpet

    • Marble

    Heating

    • Central

    • Electric

    • Heat Pump

    Cooling

    • Central Air

    Appliances

    • 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

    Other interior features

    • Built-in Features

    • Ceiling Fan(s)

    • High Ceilings

    • Living Room/Dining Room Combo

    • Open Floorplan

    • Primary Bedroom Main Floor

    • Sauna

    • Skylight(s)

    • Solid Surface Counters

    • Solid Wood Cabinets

    • Split Bedroom

    • Vaulted Ceiling(s)

    • Walk-In Closet(s)

    • Wet Bar

    • Window Treatments

    Bedrooms and bathrooms

    • Bedrooms: 4

    • Bathrooms: 1

    • Full bathrooms: 5

  • Parking

    • Circular Driveway

    • Driveway

    Property

    • Levels: Two

    • Pool Private: Yes

    • Exterior Features: Hurricane Shutters / Irrigation System / Lighting / Private Mailbox / Rain Gutters / Sliding Doors

    Lot

    • Lot: 0.44 Acres

    Other Property Information

    • Parcel Number: 0008150008

    • Zoning: PD

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Single Family Residence

  • Utility

    • Cable Connected

    • Electricity Connected

    • Natural Gas Connected

    • Public

    • Water Connected

    Green energy

    • Appliances

    • Lighting

  • Other financial information

    • HOA: $2,500

    • HOA Frequency: Annually

    • Annual tax amount: $42,201

  • Source details

    • MLS ID: A4671696

    Other facts

    • Construction Materials: Block / Stucco

    • Foundation Details: Crawlspace / Slab

    • Laundry Features: Electric Dryer Hookup / Inside / Laundry Room / Upper Level / Washer Hookup

    • Lot Features: Flood Insurance Required / FloodZone / City Lot / Private

    • Patio And Porch Features: Covered / Rear Porch / Screened

    • Pool Features: Gunite / Heated / In Ground / Outside Bath Access / Tile

    • Window Features: Double Pane Windows

    • Direction Faces: North

    • Architectural Style: Contemporary / Florida

    • Waterfront: Yes

    • Garage Spaces: 3

    • Attached Garage: Yes

    • Garage: Yes

    • Living Area: 5080

    • Water Source: Public

    • Lot Size Dimensions: 139 x 188 x 83 x 172

    • Subdivision Name: BAY ISLES

Private inquiry
Talk to the advisor on this listing.
Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

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Market around this address

Live counts in the same area.
View all
This zip
34228
416
median $1.0M
Active
Same city
LONGBOAT KEY
416
median $1.0M
Active
Same type
House
113
median $2.5M
Active
Similar price
$3.1M – $5.7M
36
median $3.9M
Active

The multiple listing information is provided by the Stellar MLS from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Stellar MLS. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: MICHAEL SAUNDERS & COMPANY