3 Seal Harbor # 344, Winthrop MA 02152
Winthrop, MA 02152 • Winthrop Highlands
$632,000
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Sale Statistics
Sale Overview
Original List Price:
$649,000
Final Sale Price:
$632,000
Difference:
$17,000 (-2.6%)
Performance Metrics
97.4%
List to Sale Ratio
Sold below asking price
67
Days on Market
Extended listing
Price per Square Foot Analysis
Original $/sq ft:
$498
Sale $/sq ft:
$485
This property sold for $485 per square foot
Sale Summary
This property sold for 2.6% below the original asking price.
The property spent 67 days on market before selling.
Nearby Sales Comparison
Based on 6 similar properties sold within 0.5 miles in the last 90 days
This Property
$485/sq ft
Area Median
$411/sq ft
Difference
+18.0%
This property sold for significantly more per square foot than similar nearby properties, suggesting premium features or condition.
About this home
Situated at the ocean's edge in Winthrop, Seal Harbor is located just fifteen minutes from Boston's financial district. Building is amenity-rich- 24/7 concierge, on-site management, secure underground deeded garage parking, heated outdoor pool with shower, bathrooms, full poolhouse kitchen, outdoor Jacuzzi & 2 gas grills, year-round access to an indoor pool on the 9th floor, complete with dramatic views, a full, new fitness center, as well as an indoor Jacuzzi and sauna with a large deck-perfect for viewing Independence Day fireworks! Seal Harbor Three boasts 3 separate function rooms where owners and their guests are able to enjoy table tennis, billiards and television. In addition to the mature grounds, owners also have access to tennis courts, private basement storage, bicycle storage, water sports storage and a full recycling facility. This home has ONE deeded underground garage parking spot & acres of guest parking. Unit has new HVAC, H2O tank & laundry and unrestricted views.
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Recently Sold Nearby
Property History
Market Insights
Property Timeline
Pending Sale
May 6, 2026
Offer accepted, sale pending
Listed for Sale
Feb 27, 2026
$649,000
Original listing
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 05/06/2026 | ⏳ Pending Sale | - | - | - | Offer accepted, sale pending |
| 02/27/2026 | 🏠 Listed for Sale | $649,000 | - | - | Original listing |
Tax History
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $7,733 | $585,800 |
Financial Details
Annual Property Tax
$7,733
Tax Year 2025
HOA Fee
$841
Monthly
Assessed Value
$585,800
Facts & Features
1 Car Garage
Central AC
Home Facts
Type
Residential
Style
Condominium
Year Built
1987
Living Area
1,302 sq ft
Bedrooms
2
Full Baths
2
Total Rooms
4
Interior
Heating
Central, Forced Air, Heat Pump, Electric, Individual, Unit Control
Cooling
Central Air, Heat Pump, Individual, Unit Control
Flooring
Wood, Tile, Hardwood
Appliances
Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Fireplace
None
Basement
Y
Laundry
Common Area, In Building, In Unit, Electric Dryer Hookup
Features
None
Exterior
Construction
Brick
Architecture
None
Roof
Rubber
Features
Deck, Deck - Roof, Deck - Composite, Deck - Access Rights, Balcony, Hot Tub/spa, Garden, Gazebo, Outdoor Shower, Professional Landscaping, Sprinkler System, Tennis Court(s)
Pool
Association, In Ground, Indoor, Heated
Spa
Hot Tub/spa
Fencing
Security
Patio/Porch
Deck, Deck - Roof, Deck - Composite, Deck - Access Rights
Parking
Garage Spaces
1
Has Garage
Yes
Features
Attached, Under, Garage Door Opener, Deeded, Off Street, Tandem, Common, Guest, Paved, Exclusive Parking
Total Spaces
1
Utilities
Electric
110 Volts, Circuit Breakers
Water
Public
Sewer
Public Sewer
Gas
None
Other
For Electric Range, For Electric Oven, For Electric Dryer
Financial
Annual Tax
$7,733
Assessed Value
$585,800
HOA & Community
HOA Fee
$841 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), Park, Recreation Facilities, Fitness Center, Sauna/steam, Clubroom, Trail(s), Beach Rights, Storage, Garden Area, Clubhouse
Optional Fee Includes
None
Owner-Occupied Units
112
Pets
Yes w/ Restrictions
MA Disclosures
Seller Disclosures
None
Exclusions
Pets - Absolutely No Dogs Permitted. No Smoking Or Vaping.
Additional Details
Possession
None
Accepted Financing
None
Structure Type
["High-Rise"]
Unit/Building
344
Sq Ft Source
Public Record
Documents
Master Deed, Unit Deed, Rules & Regs, Master Plan, Management Association Bylaws, Association Financial Statements, Certificate Of Insurance (7)
County
Suffolk
Total market time (incl. prior listings)
69 days
Property Overview
Property Type
Condominium
Listing Type
Sold
Year Built
1987
Bedrooms
2
Full Bathrooms
2
Living Area
1,302 sq ft
Total Rooms
4
Stories
10
Entry Level
3
Floor Layout
Interactive room guide
Floor Layout
Finished Area
1,302 sq ft above grade
FeaturesYes
Display Options
Outdoor Areas
PoolAssociation, In Ground, Indoor, Heated
SpaHot Tub/Spa
Patio & porchDeck, Deck - Roof, Deck - Composite, Deck - Access Rights
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
Appliances:
Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
Interior Features:
Windows:
Insulated Windows, Storm Window(s)
Basement:
Y
Laundry:
Common Area, In Building, In Unit, Electric Dryer Hookup
Security:
Intercom, TV Monitor, Doorman, Security Guard, Security Gate, Concierge
Construction & Materials
Year Built:
1987
Structure Type:
High-Rise
Exterior Materials:
Brick
Roof:
Rubber
Foundation:
Stories:
10
Heating, Cooling & Utilities
Heating:
Central, Forced Air, Heat Pump, Electric, Individual, Unit Control
Heating Zones:
3
Cooling:
Central Air, Heat Pump, Individual, Unit Control
Cooling Zones:
3
Hot Water:
Water Source:
Public
Sewer:
Public Sewer
Energy Features:
Exterior & Lot
Exterior Features:
Deck, Deck - Roof, Deck - Composite, Deck - Access Rights, Balcony, Hot Tub/Spa, Garden, Gazebo, Outdoor Shower, Professional Landscaping, Sprinkler System, Tennis Court(s)
Patio & Porch:
Deck, Deck - Roof, Deck - Composite, Deck - Access Rights
Fencing:
Security
Other Structures:
Gazebo
Lot Features:
Road Surface:
Parking & Garage
Garage Spaces:
1
Garage Type:
Attached
Total Parking Spaces:
1
Parking Features:
Attached, Under, Garage Door Opener, Deeded, Off Street, Tandem, Common, Guest, Paved, Exclusive Parking
Special Features
Spa/Hot Tub:
Yes
Spa Features:
Hot Tub/Spa
Waterfront:
Yes
Waterfront Type:
Waterfront, Ocean, Sound, Bay, Harbor, Frontage, Walk to, Access, Bay, Ocean, Direct Access, Sound, Walk to, 3/10 to 1/2 Mile To Beach, Beach Ownership(Public)
Community Amenities:
Public Transportation, Shopping, Pool, Tennis Court(s), Park, Walk/Jog Trails, Golf, Medical Facility, Conservation Area, Marina, Public School, T-Station
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
0.6 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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Location
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Neighborhood
Winthrop Highlands
3 Seal Harbor # 344, Winthrop MA 02152
Winthrop, MA 02152
Listing Information
Agent MLS ID
CN211583
Office MLS ID
AN6529
Listing Data Updated
May 15, 2026 8:05 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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