812 SWEETWATER CLUB BOULEVARD LONGWOOD, FL 32779

$6,950,000

9 Beds

12.5 Baths

14623 sqft

Property Details

MLS#

O6370385

Type

Single Family Residence

Status

Active Listing

Square Footage

14,623

Bedrooms

9

Bathrooms

12 full | 1 half

Year Built

1979

Tax Amount

$33,128

Garage Spaces

8

HOA Fees

$1100

Property Description

Virtually Staged. The Fortress returns to the market as one of Central Florida’s most extraordinary private estates, now offered with an independent appraisal available to qualified buyers. Privately walled on nearly 12 acres, this one-of-a-kind architectural compound embodies luxury built to endure for generations. Designed by renowned firm HHCP and constructed over seven years for Harold Mertz, founder of Publishers Clearing House, the nearly 20,000-square-foot compound has welcomed presidents, global dignitaries, private concerts, and philanthropic gatherings. A quarter-mile, tree-lined driveway leads to a private, spring-fed, 5-acre lake surrounded by museum-quality grounds with imported European fountains, life-size bronze sculptures, curated statuary, and ornamental koi ponds. The 14,623-square-foot main residence is built of solid poured concrete and offers 7 bedrooms, each with a private full bathroom, plus a foyer powder room. A monumental custom bronze door opens to hand-plastered walls, polished marble and terrazzo flooring, soaring 25-foot ceilings, graceful arches, bulletproof glass, and signature fluted textures across sculptural, nonlinear walls. Brand-new flooring enhances the main living room and kitchen. Formal living and dining rooms, a breakfast room, a main kitchen, and a separate staff kitchen provide an exceptional setting for both intimate living and large-scale entertaining. The lakefront kitchen features panoramic views, an oversized island, expansive pantry, private service entrance, and fully equipped staff kitchen with its own dining area. Four bedrooms are located upstairs, capturing some of the estate’s most impressive lake views, while three bedrooms are positioned on the main level. At the heart of the residence, a dramatic round atrium crowns a sculptural marble staircase that required two years to complete. Highlights include a magnificent two-story library that converts into a home theater, a glass conservatory illuminated by a Murano chandelier and designed to showcase a grand piano, an elevator near the foyer, two authentic wood-burning fireplaces, custom Sherle Wagner bathrooms, concealed closets, and a private bar near the piano room. The West Wing principal suite opens to an Italian-inspired alfresco patio and connects to a private gym with a full bathroom, sauna, and walk-in closet, creating a private wellness retreat. The East Wing suite has its own Italian-inspired patio, adding privacy and symmetry to the thoughtful layout. Beyond the main residence, the compound includes an approximately 2,500-square-foot guest and pool house with 2 bedrooms and 3 full bathrooms, approximately 1,000 square feet of staff quarters, and a 2,300-square-foot, 8-car garage with a full bathroom, laundry area, and storage. Resort-style amenities include a pool and spa, a professional court lined for tennis and pickleball, a hot tub, private sandy beach access, and multiple alfresco entertaining spaces overlooking the lake and gardens. Located approximately two miles from Wekiwa Springs State Park and convenient to highly regarded schools, The Fortress represents an increasingly rare opportunity to acquire a true legacy estate with architecture, acreage, privacy, provenance, and craftsmanship that could not be recreated today. Built to stand for the next century and beyond, this is more than a residence. It is an irreplaceable piece of architectural history. Private appointments are available.

Amenities

Cooling:Central Air

Balcony

Courtyard

Garden

Irrigation System

Outdoor Grill

Outdoor Kitchen

Playground

Private Entrance

Private Mailbox

Private Yard

Sauna

Sidewalk

Sprinkler Metered

Storage

Tennis Court(s)

Built-in Features

Dry Bar

Eating Space In Kitchen

Elevator

High Ceilings

Open Floorplan

Other

Primary Bedroom Main Floor

Sauna

Skylight(s)

Solid Surface Counters

Split Bedroom

Thermostat

Tray Ceiling(s)

Walk-In Closet(s)

Payment Calculator

per month

, 

 Principal & Interest

 Property Tax

 Mortage Insurance

 HOA

 Home Owners Insurance

Home Price
Interest Rate
Down Payment
 Customize Calculations
Property Taxes
/ year
Homeowner's Insurance
/ month
HOA Dues
Mortgage Insurance
Loan Type
Location Map

The source of this real property information is the copyrighted and proprietary database compilation of the Southwest Florida MLS organizations. Copyright 2026 Southwest Florida MLS organizations. All rights reserved. The accuracy of this information is not warranted or guaranteed. This information should be independently verified if any person intends to engage in a transaction in reliance upon it.

All listings featuring the BMLS logo are provided by Beaches MLS Inc. Copyright 2026 Beaches MLS. This information is not verified for authenticity or accuracy and is not guaranteed.

© 2026 Beaches Multiple Listing Service, Inc. All rights reserved.

The data relating to real estate for sale on this web site comes in part from the participating Associations/MLS's Miami Association of Realtors, and the Realtor Association of Greater Ft. Lauderdale.

Information is deemed reliable but not guaranteed. Copyright 2026, Miami Association of Realtors, Realtor Association of Greater Ft. Lauderdale, and the South Broward Board of Realtors. All rights reserved. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Use of search facilities of data on the site, other than a consumer looking to purchase real estate, is prohibited.

Some properties that appear for sale on this limited electronic display may no longer be available. For the most current information, contact one of our agents.