FeaturesBathroom - 3/4, Bathroom - Double Vanity/Sink, Bathroom - Tiled With Shower Stall, Walk-In Closet(s), Flooring - Stone/Ceramic Tile
LevelSecond
3 Seal Harbor Rd, Winthrop MA 02152
Winthrop, MA 02152 • Winthrop Highlands
$1,230,000
Est. $9,213/month
About this home
Experience elevated waterfront living in this stunning 3 bedroom, 3 bath penthouse at the prestigious Seal Harbor III. This exceptional two-level residence features a spacious open-concept floor plan designed to maximize natural light and showcase its spectacular waterfront setting. Entertain effortlessly or simply relax on the massive private deck, offering the perfect space to enjoy ocean breezes and breathtaking views. The kitchen boasts SS appliances, granite counters, Poggenpohl cabinetry and a breakfast bar. Enjoy the beautiful views while cooking. This 2 level unit offers the flexibility of a first floor bedroom and/or office. Nice open staircase. Lovely primary bedroom with en suite. There is a separate jacuzzi room which could become a home office if one chooses to do so. Seal Harbor III offers an unmatched lifestyle with exceptional amenities, including 24/7 concierge, a beautiful fireplaced lobby, an indoor heated pool and hot tub, a recently renovated fitness center, sauna, rooftop deck with panoramic views, outdoor swimming pool, tennis courts and multiple private resident gathering spaces. Additional highlights include a rare heated two-car garage, G9 and G11. Ideally located in the seaside community of Winthrop, you'll enjoy the tranquility of waterfront living while being just minutes from Logan Airport and downtown Boston, providing the perfect balance of coastal charm and city convenience. LUXURY, LOCATION, AND LIFESTYLE come together in this extraordinary waterfront Penthouse.
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Recently Sold Nearby
Property History
Market Insights
43.1%
Price Range
3
Previous Sales
Property Timeline
Listed for Sale
Aug 7, 2026
$1,230,000
Original listing
Agent: Cathie Curran
Office: Charlesgate Realty Group, llc
Previous Transaction - MLS #72989739
Full transaction history available when tracking began
Previously Sold
Aug 26, 2022
$850,000
MLS #72989739
Previous Transaction - MLS #72160554
Full transaction history available when tracking began
Previously Sold
Jun 13, 2017
$780,000
MLS #72160554
Previous Transaction - MLS #72137101
Full transaction history available when tracking began
Previously Sold
May 3, 2017
$700,000
MLS #72137101
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 08/07/2026 | 🏠 Listed for Sale | $1,230,000 | - | - | Original listing |
| 08/26/2022 | 🏷️ Previously Sold | $850,000 | - | - | MLS #72989739 |
| 06/13/2017 | 🏷️ Previously Sold | $780,000 | - | - | MLS #72160554 |
| 05/03/2017 | 🏷️ Previously Sold | $700,000 | - | - | MLS #72137101 |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2026 | $11,951 | $1,072,800 |
Financial Details
Annual Property Tax
$11,951
Tax Year 2026
HOA Fee
$1,798
Monthly
Assessed Value
$1,072,800
Facts & Features
2 Car Garage
Central AC
Home Facts
Type
Residential
Style
Condominium
Year Built
1987
Living Area
1,913 sq ft
Bedrooms
3
Full Baths
3
Total Rooms
6
Interior
Heating
Forced Air, Heat Pump, Electric, Unit Control
Cooling
Central Air, Heat Pump, Unit Control
Flooring
Wood, Tile, Hardwood, Stone / Slate, Flooring - Stone/ceramic Tile
Appliances
Range, Dishwasher, Disposal, Refrigerator, Washer, Dryer, Range Hood
Fireplace
None
Basement
Y
Laundry
Second Floor, Common Area, In Building, In Unit, Electric Dryer Hookup, Washer Hookup
Features
Closet, Entrance Foyer
Exterior
Construction
Brick
Architecture
None
Roof
Rubber
Features
Deck, City View(s), Gazebo, Professional Landscaping, Sprinkler System, Tennis Court(s)
Pool
Association, In Ground, Indoor, Heated
Spa
None
Fencing
None
Patio/Porch
Deck
Parking
Garage Spaces
2
Has Garage
Yes
Features
Heated Garage, Deeded, Off Street, On Street, Common, Guest
Total Spaces
2
Utilities
Electric
Circuit Breakers
Water
Public
Sewer
Public Sewer
Gas
None
Other
For Electric Range, For Electric Oven, For Electric Dryer, Washer Hookup
Financial
Annual Tax
$11,951
Assessed Value
$1,072,800
HOA & Community
HOA Fee
$1,798 Monthly
Fee Includes
Water, Sewer, Insurance, Security, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Trash, Reserve Funds
Amenities
Pool, Laundry, Elevator(s), Tennis Court(s), Fitness Center, Sauna/steam, Clubroom, Storage
Optional Fee Includes
None
Pets
Yes w/ Restrictions
MA Disclosures
Seller Disclosures
Photos Are From When Previously Listed. Unit Has Been Painted.
Additional Details
Possession
None
Accepted Financing
None
Structure Type
["High-Rise"]
Unit/Building
PH33
Sq Ft Source
Public Record
Sq Ft Disclosures
Does not include deck which is an additional 260+- square feet
Documents
Unit Deed, Floor Plans (2)
County
Suffolk
Total market time (incl. prior listings)
1 days
Property Overview
Property Type
Condominium
Listing Type
For Sale
Year Built
1987
Bedrooms
3
Full Bathrooms
3
Living Area
1,913 sq ft
Total Rooms
6
Stories
2
Entry Level
9
Floor Layout
Interactive room guide
Floor Layout
Finished Area
1,913 sq ft above grade
FeaturesBathroom - 3/4, Bathroom - Double Vanity/Sink, Walk-In Closet(s), Flooring - Hardwood, Hot Tub / Spa, Double Vanity
LevelSecond
FeaturesBathroom - 3/4, Flooring - Stone/Ceramic Tile
LevelSecond
FeaturesBathroom - 3/4, Bathroom - Double Vanity/Sink, Walk-In Closet(s), Flooring - Hardwood, Hot Tub / Spa, Double Vanity
LevelSecond
FeaturesBathroom - 3/4
LevelFirst
FeaturesCloset, Flooring - Hardwood
LevelFirst
FeaturesFlooring - Stone/Ceramic Tile, Balcony / Deck, Balcony - Exterior, Breakfast Bar / Nook, Deck - Exterior, Exterior Access, Open Floorplan, Slider, Lighting - Pendant
LevelMain
FeaturesCloset/Cabinets - Custom Built, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Countertops - Upgraded, Kitchen Island, Breakfast Bar / Nook, Cabinets - Upgraded, Open Floorplan, Recessed Lighting, Stainless Steel Appliances, Lighting - Pendant
LevelMain
FeaturesFlooring - Stone/Ceramic Tile, Balcony - Exterior, Cable Hookup, Deck - Exterior, Exterior Access, Open Floorplan, Slider
LevelMain
FeaturesYes
Display Options
Outdoor Areas
PoolAssociation, In Ground, Indoor, Heated
Patio & porchDeck
Room Markers
BABathroom (4)
BRBedroom (5)
DDining (1)
KKitchen (1)
LLiving (2)
OOffice (1)
Conceptual diagram based on MLS room data. It is not to scale and is not a substitute for architectural plans or on-site measurements.
Interior Features
Flooring:
Wood, Tile, Hardwood, Stone / Slate, Flooring - Stone/Ceramic Tile
Appliances:
Range, Dishwasher, Disposal, Refrigerator, Washer, Dryer, Range Hood
Interior Features:
Closet, Entrance Foyer
Windows:
Basement:
Y
Laundry:
Second Floor, Common Area, In Building, In Unit, Electric Dryer Hookup, Washer Hookup
Security:
TV Monitor, Concierge
Construction & Materials
Year Built:
1987
Structure Type:
High-Rise
Exterior Materials:
Brick
Roof:
Rubber
Foundation:
Stories:
2
Heating, Cooling & Utilities
Heating:
Forced Air, Heat Pump, Electric, Unit Control
Cooling:
Central Air, Heat Pump, Unit Control
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Thermostat
Exterior & Lot
Exterior Features:
Deck, City View(s), Gazebo, Professional Landscaping, Sprinkler System, Tennis Court(s)
Patio & Porch:
Deck
Fencing:
Other Structures:
Gazebo
Lot Features:
Road Surface:
Parking & Garage
Garage Spaces:
2
Total Parking Spaces:
2
Parking Features:
Heated Garage, Deeded, Off Street, On Street, Common, Guest
Special Features
Waterfront:
Yes
Waterfront Type:
Waterfront, Ocean, Walk to, Public, Ocean, Walk to, 3/10 to 1/2 Mile To Beach, Beach Ownership(Public)
View:
Yes
View Type:
City
Community Amenities:
Public Transportation, Shopping, Pool, Park, Walk/Jog Trails, Golf, Medical Facility, Laundromat, Bike Path, Conservation Area, House of Worship, Marina, Public School
Nearby Schools
School District
Winthrop School District local
C
School Safety
2024-25
0.3%
Low
0.3%
Suspensions
5.2% below state avg
Elementary Schools
2 schools
William P. Gorman/Fort Banks Elementary School
0.7 mi
487 students
Less Diverse
Grades PK-02
B-
Arthur T. Cummings Elementary School
1.2 mi
|
#453 of 824
|
Score: 46.0
Improved 101 spots from last year
-12.2 below state avg
467 students
Less Diverse
Rising School
Strong Attendance
Grades 03-05
Middle Schools
1 school
B+
Winthrop Middle School
0.8 mi
|
#119 of 352
|
Score: 47.4
Dropped 26 spots from last year
-10.8 below state avg
439 students
Less Diverse
Grades 06-08
High Schools
1 school
C+
Winthrop High School
0.8 mi
|
#241 of 346
|
Score: 47.2
Dropped 112 spots from last year
-11 below state avg
568 students
Less Diverse
18 sports
• 1,118 athletes
College Ready Curriculum
Strong Athletics
Grades 09-12
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Property Tax
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Homeowners Insurance
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HOA Fee
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Location
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Neighborhood
Winthrop Highlands
3 Seal Harbor Rd, Winthrop MA 02152
Winthrop, MA 02152
Listing Information
Listing Agent
Cathie Curran
Listing Office
Charlesgate Realty Group, llc
Office Phone
617-587-0100
Agent MLS ID
BB600069
Office MLS ID
NB1520
Listing Data Updated
Aug 7, 2026 11:40 AM EDT
Listing information is deemed reliable but not guaranteed. Data provided by MLS Property Information Network, Inc. All information should be independently verified.
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