This $29.95 Million Florida Beachfront Estate Has a Lazy River, Bowling Alley and 200 Feet of Private Gulf Frontage

Known as Sandcastle on the Gulf, the nearly 20,000-square-foot Belleair Shores compound spans three lots and pairs Mediterranean-inspired architecture with a 5,000-plus-square-foot guest residence and amenities worthy of a private resort.

Some waterfront homes are designed around the view. Sandcastle on the Gulf appears to have been designed around the idea that there should be little reason to leave.

Set directly on the Gulf of Mexico at 1700 Gulf Boulevard in Belleair Beach, Florida, the Mediterranean-inspired estate is asking $29.95 million after a series of price adjustments this year. Across its sprawling grounds are a resort-style swimming pool with a lazy river, private bowling alley, movie theater, wine room, sauna and steam shower—not to mention approximately 200 feet of private beachfront.

Built in 2015, the 10-bedroom compound spans 19,578 square feet and occupies approximately 1.18 acres across three lots in the exclusive Town of Belleair Shores.

Its scale is considerable, but the listing’s central argument is one of scarcity. Listing agent Priscilla Pesce of Charles Rutenberg Realty describes Sandcastle on the Gulf as a “one-of-a-kind Beachfront Estate,” emphasizing both the size of the property and the difficulty of reproducing a residence of this magnitude on the Gulf today.

Three Lots and 200 Feet of Private Beachfront

The defining luxury here begins outside the house.

Approximately 200 feet of direct Gulf frontage gives the estate a broad connection to the water, with expansive western views that place Florida’s famous Gulf Coast sunsets directly beyond the grounds.

Rather than squeezing an oversized residence onto a conventional waterfront parcel, Sandcastle occupies three lots. That width provides room for the architecture, pool complex and outdoor entertaining areas to unfold laterally along the shoreline.

The main residence takes its cues from Mediterranean architecture, an aesthetic particularly at home along Florida’s Gulf Coast. Arches, substantial volumes and resort-like transitions between interior and exterior spaces give the property a sense of permanence that distinguishes it from more conventional contemporary beach houses.

According to Pesce’s marketing, the residence was built to an unusually high standard of quality and design, with its combination of three lots and extensive beachfront making the property effectively “irreplaceable” in today’s market.

The Backyard Comes With Its Own Lazy River

If the Gulf provides the backdrop, the swimming pool provides the theater.

The resort-style pool complex includes a lazy river—an amenity far more commonly encountered at luxury hotels than private residences. It turns the backyard into a recreational destination in its own right, particularly when combined with the property’s direct beach access.

An outdoor grilling area is equipped with refrigeration and ice facilities, allowing large gatherings to remain entirely outdoors without repeatedly returning to the main kitchen.

The arrangement creates layers of waterfront living: owners and guests can move between shaded entertaining spaces, the pool and lazy river, and finally the private beachfront itself.

For Pesce, the property’s defining proposition is precisely that convergence of privacy and resort-style living. The listing presents Sandcastle not simply as a large beach house, but as a self-contained coastal retreat designed to accommodate family and guests on an unusually ambitious scale.

There Is a Bowling Alley Behind the Mediterranean Façade

The estate’s more surprising amenities reveal themselves indoors.

Among them is a private bowling alley, giving the house a recreational component that works regardless of the weather outside. A dedicated home theater offers a quieter alternative for movie nights and private screenings.

The entertaining program continues with a temperature-controlled wine room and adjoining bar. An ice maker, wine refrigerator and kegerator allow the space to function as a fully equipped hospitality area rather than simply a cellar for displaying bottles.

These amenities are integrated into a home built to host substantial numbers of people without making everyday living unnecessarily complicated.

Even the laundry facilities reflect that scale: there are four laundry rooms positioned throughout the residence.

Two Kitchens Make Entertaining at Scale Easier

A property capable of accommodating large groups requires more than an oversized kitchen island.

Sandcastle therefore includes both a principal kitchen and a separate butler’s kitchen, each equipped with premium appliances and designed to support entertaining at a level closer to professional hospitality.

The secondary kitchen allows preparation, catering and cleanup to remain largely removed from the primary entertaining areas, preserving the polished appearance of the main kitchen during larger events.

That distinction becomes particularly useful in a residence with 10 bedrooms and numerous dedicated gathering spaces.

The floor plan is intended to balance spectacle with practicality—a theme that runs through the property, from the multiple kitchens and laundry rooms to the separation between owner, guest and recreational spaces.

A Private Wellness Suite Brings the Spa Home

The resort theme extends to wellness.

A dedicated private gym provides owners with an at-home training environment, while a steam shower and sauna introduce the restorative amenities of a private spa.

Rather than treating wellness as an afterthought tucked into an unused bedroom, the facilities form part of the estate’s larger recreational program.

It is a detail consistent with the way high-end resort properties operate: entertainment, dining, fitness and relaxation can all happen without leaving the grounds.

The Gulf, of course, remains ever present. Few private fitness clubs can compete with having the beach just beyond the property.

A 5,000-Square-Foot Guest House Creates a Compound Within a Compound

Perhaps the clearest indication of Sandcastle’s scale is its secondary residence.

The property includes a separate guest home measuring more than 5,000 square feet with its own private entrance. In many markets, a residence of that size would constitute a substantial luxury home on its own.

Here, it provides independent accommodations for visiting friends, extended family or other long-term guests while allowing the main household to maintain privacy.

That separation transforms the property from a large single residence into something closer to a multigenerational beachfront compound.

Pesce’s listing emphasizes the guest home’s ability to provide both “comfort and privacy,” an increasingly valuable distinction at the uppermost end of the residential market, where owners often want to host for extended periods without placing everyone beneath the same roof.

The Seller Says Rebuilding It Would Cost More Than $40 Million

The current asking price also comes with an unusual value argument.

At $29.95 million, the estate is being positioned at more than $10 million below what the seller estimates it would cost to replace the property today.

That claim is particularly relevant to a home occupying three Gulf-front lots and offering nearly 20,000 square feet of interior space, extensive resort amenities and a separate 5,000-plus-square-foot guest residence.

The price has moved downward during 2026. It was asking $32.5 million in late April, followed by adjustments to $32 million, $31.75 million and $31 million before reaching its current $29.95 million asking price on July 30.

The seller is also taking an unconventional approach to negotiations. According to the listing, creative offers are welcome, including potential trades involving residential, commercial, retail or multifamily real estate—and even yachts.

For Pesce, the current positioning represents what the listing calls a “rare opportunity to secure a legacy property,” particularly when weighed against the seller’s estimate of replacement cost.

Readers can explore the complete property gallery, current pricing information and additional details through the Zillow listing here.

A Gulf Coast Estate Designed to Be Difficult to Replicate

There are larger Florida estates, and there are homes with longer amenity lists. What makes Sandcastle unusual is how many difficult-to-reproduce elements converge on a single Gulf-front property.

There is the three-lot footprint. The approximately 200 feet of private beachfront. Nearly 20,000 square feet of primary living space. A substantial independent guest residence. And then the amenities: lazy river, bowling alley, theater, wine room, dual kitchens, wellness facilities and extensive outdoor entertaining spaces.

Taken individually, each can be found elsewhere. Assembled together on a private stretch of Florida’s Gulf Coast, they create something considerably rarer.

At $29.95 million, Sandcastle on the Gulf is ultimately selling more than square footage. It is offering the possibility of living within a private beachfront resort—one where the hotel guests happen to be whoever the owner chooses to invite.

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Property Overview

Sandcastle on the Gulf is located at 1700 Gulf Boulevard, Belleair Beach, Florida 33786.

The estate is currently offered at $29,950,000 and includes 10 bedrooms, 14 bathrooms and approximately 19,578 square feet of living space. Built in 2015, it occupies approximately 1.18 acres across three lots and offers roughly 200 feet of private Gulf frontage.

Major amenities include a resort-style pool and lazy river, private bowling alley, home theater, temperature-controlled wine room and bar, main and butler’s kitchens, four laundry rooms, private gym, sauna and steam shower, outdoor grilling facilities and a separate guest residence spanning more than 5,000 square feet.

Listing Representation

Priscilla Pesce of Charles Rutenberg Realty Inc. represents Sandcastle on the Gulf. Qualified prospective buyers seeking additional information or wishing to arrange a private showing can contact the listing representative directly.

Priscilla Pesce
Charles Rutenberg Realty Inc.
Phone: (727) 282-6983

Brokerage: (727) 538-9200