3 Seal Harbor # 344, Winthrop MA 02152

Winthrop, MA 02152 • Winthrop Highlands

$649,000

Est. $4,967/month

2

Beds

2

Baths

1,302

Sq Ft

$498

Price/Sq Ft

1987

Year Built

Condominium

Type

5 hours 35 minutes

Time on Market

Active Listed Feb 27, 2026 • MLS# 73480701 Copied!

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.

View in the App

Save this property, schedule tours instantly, and get alerts when the price drops

Scan with phone

Get the full experience in the BMN Boston app

Property Overview

Property Type

Condominium

Listing Type

For Sale

Year Built

1987

Bedrooms

2

Full Bathrooms

2

Living Area

1,302 sq ft

Total Rooms

4

Stories

10

Entry Level

3

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

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

Location

Loading map...

Neighborhood

Winthrop Highlands

3 Seal Harbor # 344, Winthrop MA 02152

Winthrop, MA 02152

Walkability

Loading Walk Score...

Nearby Schools

School District

Winthrop School District local

C

✓ School Safety 2024-25

0.3% Low

0.3% Suspensions

↓ 5.2% below state avg

E

Elementary Schools

3 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

B

Beachmont Veterans Memorial School

1.3 mi | #350 of 824 | Score: 49.1

Improved 63 spots from last year

-9.1 below state avg

346 students Diverse

Rising School

Grades PK-05

M

Middle Schools

2 schools

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

C

Garfield Middle School

1.6 mi | #264 of 352 | Score: 35.1

Dropped 12 spots from last year

-23.1 below state avg

542 students Moderate

Grades 06-08

H

High Schools

2 schools

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

D

CityLab Innovation High School

1.3 mi | #327 of 346 | Score: 28.4

Improved 14 spots from last year

-29.8 below state avg

117 students Moderate

College Ready Curriculum

Grades 09-12

Learn about these ratings

Loading comparison...

Monthly Payment Calculator

Monthly Payment

$0

Principal, interest, taxes & insurance

Loan Amount

$0

After down payment

Total Interest

$0

Over life of loan

Total Cost

$0

Including down payment

Home Price

Down Payment

%

Down: $0

Interest Rate

%

Loan Term

Monthly Payment Breakdown

Principal & Interest $0

Property Tax $644

Homeowners Insurance $200

HOA Fee $841/mo

PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0

Total principal paid $0

Total interest paid $0

Rate Impact

-0.5% Rate

$0/mo

Save $0/mo

Current Rate

$0/mo

+0.5% Rate

$0/mo

Cost $0/mo

Payment Over Time

Interest

Principal

Year 1

95% Interest

Year 15

50/50

Year 30

95% Principal

* Estimates only. Actual payments may vary. Consult with a lender for accurate figures.

Property History

Property Timeline

🏠

Listed for Sale

Feb 27, 2026

$649,000

Original listing

Date	Event	Price	Change	$/sqft	Details
02/27/2026	🏠 Listed for Sale	$649,000	-	-	Original listing

Price & Status History

Date	Event	Price	Change
Feb 27, 2026	New Listing Added	$649,000	—

Market Statistics

Time on Market

5 hours 35 minutes

Price per Sq Ft

$498

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

Elementary Schools

Middle Schools

High Schools

Monthly Payment Breakdown

Loan Summary

Listed for Sale

Customize Comparable Search

Distance & Location

Property Characteristics

Price & Value

Property Features

Market Filters

Display Options

📍 Comparable Properties Map

3 Seal Harbor # 344, Winthrop MA 02152

About this home

Property Overview

Facts & Features

Home Facts

Interior

Exterior

Parking

Utilities

Financial

Interior Features

Construction & Materials

Heating, Cooling & Utilities

Exterior & Lot

Parking & Garage

Special Features

Location

Neighborhood

Walkability

Nearby Schools

Elementary Schools

Middle Schools

High Schools

Monthly Payment Calculator

Monthly Payment Breakdown

Loan Summary

Rate Impact

Payment Over Time

Property History

Property Timeline

Listed for Sale

Detailed History Table ▼

Price & Status History

Market Statistics

Tax History

Financial Details

Listing Information

Comparable Properties

Customize Comparable Search

Distance & Location

Property Characteristics

Price & Value

Property Features

Market Filters

Display Options

📍 Comparable Properties Map

Adjust Property Details

Market Analytics for Winthrop, MA

BMN Boston Real Estate

Schedule a Tour

Get the BMN Boston App