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3 Seal Harbor Rd # 634, Winthrop MA 02152

Winthrop, MA 02152
$525,000
Est. $3,879/month
1
Beds
1
Baths
840
Sq Ft
$625
Price/Sq Ft
1987
Year Built
Condominium
Type
6 hours 27 minutes
Time on Market
Active Listed Apr 3, 2026 • MLS# 73495543 Copied!

About this home

Situated at the ocean's edge in Winthrop, the Seal Harbor condominium community is located just fifteen minutes from Boston's financial district. The building is amenity-rich offering 24/7 concierge, on-site management, secure underground garage parking, a heated outdoor pool with shower, bathrooms, full poolhouse kitchen, an outdoor Jacuzzi, and two gas grills. Residents also enjoy year-round access to an indoor pool on the 9th floor, complete with dramatic views, a new fitness center, as well as an indoor Jacuzzi and sauna with a large deck-perfect for viewing Independence Day fireworks! 3 Seal Harbor boasts three separate function rooms, where guests are able to enjoy table tennis, billiards and television. And in addition to the mature grounds, owners also have access to tennis courts, basement storage, bicycle storage, water sports storage and a full recycling facility. Unparalleled for its location, value, amenities, breathtaking views and proximity to Boston.NO DOGS PERMITTED.

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Property Overview

Property Type
Condominium
Listing Type
For Sale
Year Built
1987
Bedrooms
1
Full Bathrooms
1
Living Area
840 sq ft
Total Rooms
3
Stories
1
Entry Level
6

Facts & Features

1 Car Garage
Central AC

Home Facts

Type Residential
Style Condominium
Year Built 1987
Living Area 840 sq ft
Bedrooms 1
Full Baths 1
Total Rooms 3

Interior

Heating Forced Air, Electric
Cooling Central Air, Heat Pump, Individual, Unit Control
Flooring Wood, Tile, Carpet
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, 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 $4,687
Assessed Value $454,200

Interior Features

Flooring: Wood, Tile, Carpet
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: 1

Heating, Cooling & Utilities

Heating: Forced Air, Electric
Heating Zones: 2
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, 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

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Neighborhood

3 Seal Harbor Rd # 634, Winthrop MA 02152

Winthrop, MA 02152

Walkability

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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

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
M

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
H

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
Learn about these ratings
School data provided by BMN Schools

Monthly Payment Calculator

Monthly Payment
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Principal, interest, taxes & insurance
Loan Amount
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After down payment
Total Interest
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Over life of loan
Total Cost
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Including down payment
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Down: $0
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Monthly Payment Breakdown

Principal & Interest $0
Property Tax $391
Homeowners Insurance $200
HOA Fee $634/mo
PMI (if <20% down) $0

Loan Summary

Total of 360 payments $0
Total principal paid $0
Total interest paid $0

Rate Impact

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Current Rate
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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
Apr 3, 2026
$525,000
Original listing
Agent: Mark Carangelo Office: Mark Carangelo

Price & Status History

Date Event Price Change
Apr 3, 2026 New Listing Added $525,000 —

Market Statistics

Time on Market
6 hours 27 minutes
Price per Sq Ft
$625

Tax History

Year Taxes Assessment
2025 $4,687 $454,200

Financial Details

Annual Property Tax
$4,687
Tax Year 2025
HOA Fee
$634
Monthly
Assessed Value
$454,200

Listing Information

Listing Agent Mark Carangelo
Listing Office Mark Carangelo
Agent MLS ID CN211583
Office MLS ID AN6529
Listing Data Updated Apr 3, 2026 3:30 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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3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 1 3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 2 3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 3 3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 4 3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 5 3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 6 3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 7 3 Seal Harbor Rd # 634, Winthrop MA 02152 - Photo 8
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