Two weeks ago, Larry Ellison and David MacNeil paid a combined $67 million for a Manalapan waterfront parcel that was originally listed as the future site of a $285 million mega-mansion. The two neighboring billionaires split the four-acre property, with MacNeil taking the northern parcel for $32 million and Ellison the southern for $35 million. Neither of them needed another house. They needed the land next door.
The transaction says something specific about what Manalapan has become. It is not primarily a housing market anymore. It is a land control market where the most valuable purchase is often the property you never intend to build on.
For estate security, that framing changes the risk picture entirely. Our own detailed coverage of Manalapan’s trophy real estate security exposure covers the specific architecture the current market requires.
The town has 400 residents. The threat surface does not care.
Manalapan is a 400-resident barrier island town approximately 20 minutes south of Palm Beach and 15 minutes north of Boca Raton. Its geographic identity is straightforward: a narrow strip of land where the most valuable estates run from the Atlantic Ocean on the east to the Intracoastal Waterway on the west, giving direct water access on two sides simultaneously.
That geographic profile is what makes Manalapan estates uniquely exposed and uniquely valuable at the same time.
Ellison’s cumulative Manalapan investment is now approximately $450 million. His $173 million purchase of the 22-acre Gemini estate in 2022 set a Florida record. His $277 million purchase of the Eau Palm Beach Resort & Spa gave him control of the town’s largest structure. Now the land grab strategy with MacNeil is extending his control of adjoining parcels.
Just five days ago, a new $85 million listing hit the market at 3060 South Ocean Boulevard, an ocean-to-Intracoastal compound just south of the Ellison/MacNeil parcels. The average asking price for a single-family home in Manalapan is now approximately $60 million.
The people living here are not anonymous. Beyond Ellison and MacNeil, the current resident list includes Jeff Greene, Tony Robbins, Sean Hannity, and a growing roster of billionaire buyers who have concluded that Palm Beach Island is either too public or too regulated for what they want. Katherine Clarke’s WSJ Mansion coverage of the Ellison Manalapan strategy has documented the pattern in the specificity it actually deserves.
The dual-perimeter reality
Every Manalapan estate that runs ocean-to-Intracoastal has a security architecture problem that most Palm Beach Island estates do not have to solve. There are two water perimeters instead of one. The Atlantic side is beach-facing, publicly accessible, and exposed to marine approach. The Intracoastal side is protected but has private dock access, boat traffic, and canal-adjacent structural exposure.
The estates that treat these two water sides as a single perimeter tend to underweight the operational reality. The estates that get it right run one operational picture across both water sides with unified camera coverage, dock monitoring, canal boat identification protocols, and beach-side movement patterns tracked in real time.
Our detailed coverage on marine-side surveillance for Manalapan estates addresses the specific architecture that dual-perimeter operations actually require.
The reconnaissance problem
The single most underweighted category of Manalapan estate risk in 2026 is pre-operational reconnaissance. Every trophy estate in the town is now internationally documented. Multiple architecture and real estate publications have run detailed coverage of specific properties. Social media documentation of individual homes is extensive.
For an organized threat actor, the reconnaissance work has already been done. The remaining question is which estate to target and when to move, not what the estate looks like or how it is configured.
The estates that respond effectively to this reality limit the details available about their properties in current marketing materials, vary the routines that a surveillance operation would depend on, engage private security operations that include counter-surveillance disciplines, and treat the reconnaissance environment as ongoing rather than as something that ends when a property closes.
Our detailed coverage on staff vetting for Manalapan estates and insider risk addresses the specific vetting architecture that current trophy estates require.
What to do now
For current or prospective Manalapan estate owners, three practical priorities.
Review your operational security architecture against your current threat profile, not against the profile you had two or three years ago. If your estate has increased significantly in publicly known value, so has your exposure.
Address the dual-perimeter reality that most standard security programs miss.
Build a counter-surveillance discipline into your household operations. The reconnaissance environment in Manalapan is now sophisticated enough that passive security architecture is not sufficient.
Ready to Take the Next Step?
Download the Estate Operations & Insider Risk Checklist.
The 15-point framework we run on every new Manalapan estate assessment.
Read next:
How to Choose a Security Firm for a Manalapan Estate
— the specific evaluation framework we recommend for trophy estate principals.
HK Defense Solutions provides estate security, executive protection, and converged physical-digital security for Manalapan trophy estates. Licensed Florida Class B, D, and G. Contact our team.