Under Construction. Just steps from the sand along Longboat Key’s prized coastline, the construction of a modern architectural showpiece is now complete and ready for living the ultimate lifestyle. Majestically poised on over a third of an acre, this modern residence’s visual presentation was intentionally and expertly planned with no detail overlooked. Expansive walls of glass take full advantage of the dramatic Gulf views that stretch across the horizon and set the stage for viewing memorable sunsets in brilliant hues of yellows, oranges and reds. The sophisticated coastal aesthetic has been cohesively designed to evoke a peaceful ambiance, captivate the senses, and create harmonious spaces that inspire and uplift. This exceptional beachfront estate offers a light-filled floor plan of 4,925 sq. ft. and provides five bedrooms, six baths, an executive office and a den. Encompassing nearly 1,000 sq. ft. , the living, dining and kitchen area is simply breathtaking with walls of glass on two sides and cerulean blue water panoramas stretch as far as the eye can see. Style and comfort easily flow throughout the residence with its crisp clean lines and spacious open areas filled with natural light, balanced by organic materials and earthy neutral tones to create an open, airy ambiance. From sleek Walker Zanger porcelain tile to custom cabinetry and polished nickel fixtures, the finishes are top-tier. The kitchen façade is artistically impressive and features everything you’d expect in a home of this caliber with a large waterfall-edge island and premium Sub-Zero and Wolf appliance package including double ovens, induction cooktop, and full-size temperature-controlled wine storage. The owner’s retreat is a true showstopper with floor-to-ceiling glass sliders that open wide to a sweeping terrace perched high above the water. Inside, the suite offers a fully customized wardrobe room and a resort-inspired bath featuring tiled walls, a walk-in shower with multiple heads, a freestanding designer tub, dual floating vanities, and a private water closet. Upstairs, an executive office and three generous bedroom suites—each with its own walk-in closet—gives plenty of space for family or guests. A fourth bedroom shares a cozy den, perfect for lounging or movie nights. This incredible residence is well suited for entertaining, whether enjoying small intimate gatherings or hosting elaborate sunset soirees. The enormous ground-level outdoor space is highlighted by a 36-foot lap pool, sun shelf, heated spa, and a fully equipped summer kitchen with a grilling station. Additionally on this level are a three-car garage, an outdoor shower, and an elevator to all 3 levels plus a staircase in a glass enclosed entry. Living along the water’s edge introduces magical nuances with the dawning of every new day. The sights and sounds in one of nature’s most beautiful settings will lull you into peaceful bliss. Life on the water is truly a dream come true—a place to be cherished and appreciated for years to come.
Positioned in an ultra-private, beachfront, residential estate enclave on Longboat Key. This 21,000 sq. ft. island paradise features unobstructed panoramic views across miles of dazzling crystal sand beach and the glistening Gulf of Mexico. The perfect setting for sunbathing, surfing and twilight bonfires. One of the world's most sought after beaches. Refresh and renovate this classic seaside home or build new! Included with this purchase is a set of architectural plans stamped and approved for a custom contemporary 5,000 sq. ft. home featuring a masterclass collaboration between acclaimed architect Jeffrey Silberstein and Feng Shui specialist, Interior designer, Leslie Close who showcases the spectacular west-facing orientation of the home to maximize breathtaking Gulf of Mexico views and stunning sunsets while carefully applying Feng Shui elements to the interior design fluctional flow throughout the space so that the home is perfectly aligned for good energy flowing throughout the interiors/ exteriors. Feng Shui = Conscious design + Wellness. 1/4 of North Gulfside Rd. , 9,575 sq. ft. is included at no additional cost. Survey available upon request.
Single-Family Low-Medium-Density Residential District
The purpose of this district is to delineate those areas suitable for residential development of a low-density character together with the associated accessory uses.
Permitted uses
Include but are not limited to:
Housing-Group
Housing-Single unit
Fire house
Police station
Mar 27, 2026 • Final
Residential electrical new
Electrical
Pool and hot tub
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
10/10 Heat Factor
7 days above 106° expected this year, 25 days in 30 years
10/10 Wind Factor
99% chance of strong winds in next 30 years
3/10 Air Factor
2 unhealthy days expected this year, 2 days in 30 years
Provided by First Street
Historical weather
Longboat Key, FL • 34228
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Sun exposure
Try the sun simulator tool to see how light moves across the property at different times of day and year.
Provided by Shadowmap
Redfin Estimate for 6603 Gulfside Rd
$13,181,890
$1.8M under list price of $15.0M
Nearby comparable homes
The Redfin Estimate uses 5 recent nearby sales, priced between $1.9M to $19.0M.