- MLS® #: A11877495
- 3742 Seagrape Street
- Big Pine Key, FL 33043
- $5,390,000
- 3 Beds, 3 Bath, 4,687 SqFt
- Residential
Escape to “The Castle”, a luxurious gated Gulf-front estate spanning 1.14 acres on Big Pine Key. Built in 2014 with poured concrete, impact windows/doors, elevator, and generator, this 4,600+ sq. ft. masterpiece offers 3 bedrooms, 3 baths, and breathtaking Gulf views. Boaters enjoy 235’ of dockage: 140’ protected canal dock with lift, ramp, and slip, plus 95’ open-water pier dock with lift and seawall. Inside, a chef’s kitchen with 10.5’ island, dual sinks, Jenn-Air gas range, and wood cabinetry flows to a grand family room, theater, and rooftop deck. The top-floor primary suite boasts water views, office, lounge, spa bath, and custom closet. Outside, a resort-style pool with spa, heater/chiller, and LED lighting completes this rare Florida Keys retreat.
View Virtual TourEssential Information
- MLS® #A11877495
- Price$5,390,000
- CAD Dollar$7,661,928
- UK Pound£4,085,394
- Euro€4,743,405
- Bedrooms3
- Bathrooms3.00
- Full Baths3
- Square Footage4,687
- Year Built2014
- TypeResidential
- Sub-TypeSingle Family Residence
- RestrictionsNo Restrictions
- StatusActive
- HOPANo Hopa
Community Information
- Address3742 Seagrape Street
- Area5940 - Other Florida County
- SubdivisionPORT PINE HEIGHTS 2ND ADD
- CityBig Pine Key
- CountyMonroe
- StateFL
- Zip Code33043
Amenities
- AmenitiesNone
- UtilitiesCable Available
- # of Garages4
- ViewWater, Bay
- Is WaterfrontYes
- Has PoolYes
- PoolHeated, In Ground, Concrete
- Pets AllowedYes, No Restrictions
Parking
Attached Carport, Circular Driveway, Covered, Driveway, Golf Cart Garage, Guest, Paver Block, Carport
Waterfront
Ocean Access, Canal Front, Seawall, Bayfront
Interior
- HeatingCentral
- CoolingCentral Air
- # of Stories2
- StoriesTwo
Interior Features
Built-in Features, Elevator, Kitchen Island, Closet Cabinetry
Appliances
Electric Water Heater, Disposal, Dishwasher, Microwave
Exterior
- Exterior FeaturesLighting, Balcony
- RoofConcrete
- ConstructionBlock, CBS
School Information
- ElementarySugarloaf
- MiddleMarathon
- HighKey West
- Office: Ocean Sotheby's International
Property Location
3742 Seagrape Street on www.jupiteroceanfronthomes.us
Offered at the current list price of $5,390,000, this home for sale at 3742 Seagrape Street features 3 bedrooms and 3 bathrooms. This real estate listing is located in PORT PINE HEIGHTS 2ND ADD of Big Pine Key, FL 33043 and is approximately 4,687 square feet. 3742 Seagrape Street is listed under the MLS ID of A11877495 and has been available through www.jupiteroceanfronthomes.us for the Big Pine Key real estate market for 421 days.
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.
Listing information last updated on June 24th, 2026 at 1:27pm CDT.