One of Southwest Florida’s most extraordinary riverfront estates, 3836 Harold Avenue brings the romance of historic Palm Beach architecture to a private, gated setting in Old Fort Myers. Inspired by Addison Mizner’s Mediterranean Revival style and designed inside and out by David Naylor, this one-of-a-kind residence pairs timeless artistry with reinforced-concrete construction, deep-water boating, and a Caloosahatchee River setting.
Built in 2012, the home offers approximately 8,701 square feet of air-conditioned living space, five bedrooms, five full baths, and three half baths. Enter through custom doors into a Spanish-inspired courtyard with covered walkways, balconies, and two working fountains adorned with handmade, hand-painted Mizner Industries tile. Beyond, a breathtaking great room rises approximately 30 feet beneath a Cypress ceiling and massive beams. An immense, independently engineered wall of impact-resistant glass frames the pool and river, filling the room with light and connecting it to the waterfront. Imported Italian limestone floors, a Francois & Co. limestone fireplace and custom kitchen range hood, hand-carved doors, intricate millwork, and artisan-crafted details give the home authenticity. The kitchen, family spaces and riverfront terraces flow beautifully for everyday living and grand entertaining. A private, approximately 1,500-square-foot first-floor owner’s retreat includes separate dressing and bathing areas, a steam shower, fitness space, and direct garage access. Upstairs are multiple en-suite bedrooms, a private sitting area, a guest suite with its own exterior entrance, a river-view office with carved “Romeo and Juliet” doors, and a richly paneled Irish pub and media room opening to a riverfront balcony. A second office is on the main level. The substance behind the beauty is equally compelling: poured reinforced-concrete structural walls extend through both levels, with pre-stressed concrete slabs forming the second floor. PGT impact-rated windows and doors, specialized engineering for the monumental glass enclosure, and spray-foam attic insulation reflect a residence conceived for strength, comfort, and longevity. Outdoors, covered Cypress-ceiling terraces, a full kitchen and bar, pool and spa overlook the river. A new custom dock with composite decking, two lift positions and direct Caloosahatchee access makes this a rare offering for serious boaters. An oversized four-car garage, integrated home automation, multi-zone audio, lighting and security complete the estate. Just off historic McGregor Boulevard, near downtown Fort Myers, the Edison and Ford Winter Estates and Donald Ross-designed Fort Myers Country Club, this property offers privacy near the city. Its scale is impressive; its warmth is unexpected. Its craftsmanship, engineering, waterfront setting, and singular design place 3836 Harold Avenue among the most distinctive estates in Southwest Florida.
8,701 Sq Ft
0.655 Private Acres Lot Size
single family home
US$4,410 Monthly Tax
Built in 2012
MLS/Listing ID 2026041196
2 Stories
1 Units
Style - Multi Level
Style - Spanish
Construction - Stucco
Cooling - Ceiling Fans
Cooling - Other
Cooling - Zoned
Gas Cooktop
Dishwasher
Disposal
Double Oven
Natural Wood
Negotiable
Heating - Zoned
Bar
Closet Cabinetry
Custom Mirrors
Fireplace
Wired for Sound
Tray Ceilings
Walk-in Closets
Entrance Foyer
Window Coverings
River Front
Rip Rap
Navigable
Water View
River View
Landscaped Area View
Tile
Pool - Salt Water
Pool Bath
Pool - Gas Heat
Pool - Equipment Stays
Pool - Custom Upgrades
Pool - Concrete
Pool - Below Ground
Pool - Above Ground
Parking - Attached
Parking - Guest
Parking - Driveway Paved
Lot - Oversized Lot
Lot - Irregular Lot
Laundry Tub
Laundry in Residence
Smoke Detectors
Zero Corner Door Sliders
Volume Ceilings
Style - Two Story
Refrigerator
Microwave
Tankless Water Heater
Wine Cooler
Washer
Pantry
Built-in Cabinets
Heating - Central Electric
Poured Concrete
Concrete Block
Built-in Gas Fire Pit
Open Porch/Lanai
Dock Included
Composite Dock
Boat Dock Private
Zero/Corner Door Sliders
Cooling - Gas - Propane
Cooling - Central Electric
Construction - Poured Concrete
Construction - Concrete Block
Ice Maker - Stand Alone
Grill - Gas
Self Cleaning Oven
Refrigerator/Icemaker
Refrigerator/Freezer
Wall Oven
Dryer
Marble
Carpet
Outside Fireplace
Fenced
Storage
Outdoor Shower
Outdoor Kitchen
Built-in Barbecue
Balcony
Boat Slip
Boat Lift
Pets Allowed
TOTAL MONTHLY COST
US$0
US$0
US$0
The source of this real property information is the copyrighted and proprietary database compilation of the M.L.S. of Naples, Inc.
Copyright 2026 M.L.S. of Naples, Inc. 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. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed.