A Newly Built Oceanfront Compound in the Florida Keys With Its Own Sandy Beach Lists for $40 Million
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A Newly Built Oceanfront Compound in the Florida Keys With Its Own Sandy Beach Lists for $40 Million

The land was previously owned by the late naturalist Herbert Zim, the founder of the Golden Guides nature book series.

By Casey Farmer
Mon, May 18, 2026 10:13amGrey Clock 2 min
A newly completed waterfront compound in the Florida Keys hit the market last week for $40 million.

It’s the second-most-expensive listing in all of the Keys, topped by a property just down the road that’s asking $42 million.

The roughly 7-acre spread on Plantation Key was previously home to the five-house compound of the late naturalist Herbert Zim, the founder and editor in chief of the Golden Guides nature book series.

The main house and guest house are available separately or as a package.

The main house and guest house are available separately or as a package. Ginger Monteleone

For many decades, it was both Zim’s family estate and where he produced his Golden Guides, according to the current owner, Todd Maino. He bought the property, which encompasses six parcels, from Zim’s estate, he said. Mansion Global couldn’t determine what Maino paid.

Over the course of about four years, Maino, a commercial and residential developer, transformed the property into a new compound that was completed last year. There’s a new 8,200-square-foot main house with five bedrooms and a renovated three-bedroom guest house. Maino said he left some cosmetic details unfinished to allow the next owner to personalize the home.

“They can make it their own instead of buying somebody else’s vision,” he said.

The pool stretches 120 feet long.

The pool stretches 120 feet long. Ginger Monteleone

Off the main house, there’s a 120-foot pool with a hot tub, and beyond that, a sandy beach extends along the property’s 480 feet of water frontage. There’s a dock within a grandfathered-in boat basin that’s larger and deeper than what would be allowed today.

“The drag is over 6 feet, so you can have a pretty large boat there,” listing agent Angel Nicolas of the Nicolas Group at Serhant said. He and his colleague Courtney Conley listed the property a week ago.

The property is full of Florida wildlife, from osprey and sandpiper nests to peacocks that wander around.

“I actually had a manatee have a baby in the boat basin,” Maino said. “It’s ecologically balanced with nature. It’s not concrete jungle—it’s not Miami.”

Because much of the property is open land and not covered in protected trees, there’s opportunity to further develop the estate, whether that be adding another house or amenities like a tennis court or a helipad.

The main house and guest house, which stand on their own waterfront parcels, are also available for sale separately. The lot with the guest house is priced at $15 million, while the main-house lot is asking $27 million, Nicolas said.



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A 45-apartment tower with harbour views is proposed for St Georges Crescent, as Drummoyne becomes an unlikely hotspot for boutique development.

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Sydney developer Central Element has lodged a Development Application with the City of Canada Bay Council for a ten-storey residential building at 15A-21 St Georges Crescent, Drummoyne, its second project in the tightly held waterfront suburb.

The proposal seeks approval for 45 residences on a 1,701sqm north-facing site, including eight affordable housing apartments to be managed by a registered community housing provider for a minimum of 15 years.

Designed by MHN Design Union, the building would deliver a mix of one, two and three-bedroom homes, along with a resident gym, landscaped communal spaces and three levels of basement parking.

The elevated site looks out towards the Sydney Harbour Bridge and the CBD skyline, with north-easterly views across the harbour. It sits within walking distance of Drummoyne Sailing Club, Birkenhead Point, ferry services and the Bay Run.

The DA comes as Drummoyne faces growing pressure to accommodate new housing.

The City of Canada Bay’s population is forecast to grow by nearly 30 per cent over the next two decades, while Drummoyne village has been identified as a town centre under the NSW Government’s Low and Mid-Rise Housing reforms.

Managing Director Nathan Chivas said sites combining a north-facing aspect with direct water outlook were increasingly difficult to secure.

“Our St Georges Crescent project responds directly to the market demand, offering a level of exclusivity, outlook and lifestyle in the highly sought-after suburb,” he said.

Central Element is also behind Bianca, a luxury waterfront project at 2C Wolseley Street, Drummoyne, currently under construction. The company’s broader Sydney pipeline includes projects in Bondi, Neutral Bay and Greenwich.

The St Georges Crescent project is expected to launch to market in early 2027, subject to DA approval.

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