OFF MARKET

Off market sep 2021 for $555K

$602,062

Est. refi paymentEst. refi $3,680/mo

•

1,320

sq ft

3 Seal Harbor Rd #447, Winthrop, MA 02152

About this home

Enjoy living on the ocean in this wonderful condo with your own private balcony and incredible water views at Seal Harbor Three. This home has a large open dining/living area, a spacious kitchen, En-Suite bathroom, guest bathroom, two large bedrooms, in-unit washer dryer, central AC, recessed lighting, and tremendous closet space. Easy living in this full-service 24/7 concierge building with garage parking, outdoor heated oceanside pool, indoor rooftop lap pool, roof top sun deck w/ Boston skyline and ocean views, gym, sauna, function rooms, billiards room, extra storage, landscaped grounds, tennis courts, & much more! Easy commute to downtown Boston by “T,” water shuttle or car. Winthrop has 3 yacht clubs, several beaches, marinas, new schools, beautiful beaches, golf course, restaurants, & more! Close to Logan Airport, the Blue Line, Routes 1 and 145. Move right in and enjoy the rest of your summer on the ocean.

CondoProperty Type

1987Year Built

$456Est. Price/Sq.Ft.

1 car garageParking

Listed by Daria McLean • Gibson Sotheby's International Realty

Bought with Leighann Eruzione • Berkshire Hathaway HomeServices Robert Paul Properties

Redfin checked: 2 minutes ago

•Source:MLS PIN #72881272

Redfin Estimate

$602,062

$47K since sold in September 2021$2,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 7.2% lower than the average sale price ($649K) of 6 comparable homes.

SOLD BY REDFIN OCT 23, 2026
$623,000
A
2 beds2 baths1,302 sq ft
3 Seal Harbor Rd #342, Winthrop, MA 02152
SOLD SEP 15, 2026
$715,500
B
2 beds2 baths1,414 sq ft
1 Seal Hbr #700, Winthrop, MA 02152
SOLD AUG 26, 2026
$589,000
C
2 beds2 baths1,241 sq ft
1 Seal Harbor Rd #116, Winthrop, MA 02152
SOLD MAY 7, 2026
$632,000
D
2 beds2 baths1,302 sq ft
3 Seal Hbr #344, Winthrop, MA 02152
SOLD MAR 2, 2026
$670,000
E
2 beds2 baths1,327 sq ft
3 Seal Harbor Rd #137, Winthrop, MA 02152
SOLD OCT 15, 2026
$665,000
F
2 beds2 baths1,471 sq ft
550 Pleasant St #510, Winthrop, MA 02152

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$171,224

Est. take-home

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Market trends in 02152, MA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

99.0%

0.9% MoM

Median sale price

$715K

$86K MoM

Avg. days on market

27d

4 days MoM

Recently sold homes

3 MoM

New listings for sale

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See all

Provided by Redfin

Sale history for 3 Seal Harbor Rd #447

Year

Property tax

Land + Additions

Assessment*

2023

$5,506 (+10.7%)

$514,600

2022

$4,976 (−2.1%)

$423,100

2021

$5,085 (+3.6%)

$401,000

2020

$4,909 (−1.2%)

$389,000

2019

$4,968 (−3.1%)

$376,900

2018

$5,125 (+2.9%)

$361,900

2017

$4,980 (+2.4%)

$345,600

2016

$4,862 (+18.6%)

$316,300

2014

$4,101 (−1.6%)

$263,200

2013

$4,169 (+2.9%)

$279,600

2012

$4,051 (−1.0%)

$279,600

2011

$4,092 (−6.7%)

$296,500

2010

$4,387 (+26.2%)

$345,400

2009

$3,476

$348,600

Tax history for 3 Seal Harbor Rd #447

Year

Property tax

Land + Additions

Assessment*

2023

$5,506 (+10.7%)

$514,600

2022

$4,976 (−2.1%)

$423,100

2021

$5,085 (+3.6%)

$401,000

2020

$4,909 (−1.2%)

$389,000

2019

$4,968 (−3.1%)

$376,900

2018

$5,125 (+2.9%)

$361,900

2017

$4,980 (+2.4%)

$345,600

2016

$4,862 (+18.6%)

$316,300

2014

$4,101 (−1.6%)

$263,200

2013

$4,169 (+2.9%)

$279,600

2012

$4,051 (−1.0%)

$279,600

2011

$4,092 (−6.7%)

$296,500

2010

$4,387 (+26.2%)

$345,400

2009

$3,476

$348,600

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

—

Year renovated

1989

Sq. Ft.

1,320

Year built

1987

Style

Condo/Co-op

County

APN

1425359

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 21, 2023.

Property details

Parking

Parking Information
Has Garage
Has Open Parking
# of Garage Spaces: 1
# of Covered Spaces: 1
AttachedGarageYN: Yes
Parking Features: Attached, Paved

Interior

Bathroom Information
# of Bathrooms (Full): 2
Master Bathroom Features: Yes

Basement Information
Basement: Y

Laundry Information
Laundry Features: Common Area, In Unit

Interior Features
# of Rooms (Total): 5
Flooring: Tile, Carpet

Exterior

Building Information
Building Name: Seal Harbor Three Condominiums
Building Area (Total): 1,320
Construction Materials: Brick
StructureType: Mid-Rise
Stories (Total): 1
Year Built Source: Public Records
Year Built Details: Approximate

Exterior Features
Roof: Rubber
Patio And Porch Features: Deck, Deck - Roof + Access Rights
Exterior Features: Deck, Deck - Roof + Access Rights, Garden, Gazebo, Outdoor Shower, Professional Landscaping, Sprinkler System, Tennis Court(s)

Pool Information
Pool Features: Association, In Ground, Indoor, Heated

Property Information
PropertySubType: Condominium
Property AttachedYN: Yes
Common Walls: 2+ Common Walls
Entry Level: 4
Security Features: Concierge
Other Structures: Gazebo
Has Waterview
Harbor, Ocean

Lot Information
WaterfrontYN: Yes

Financial

Tax Information
Tax Annual Amount: $5,085
Tax Year: 2021

Utilities

Utility Information
Sewer: Public Sewer
Water Source: Public

Heating & Cooling
Has Heating
Has Cooling
Heating: Central, Heat Pump, Electric
Cooling: Central Air, Heat Pump, Unit Control

Location

HOA Information
Association Fee: $698
Association Fee Frequency: Monthly
Association Fee Includes: Water, Sewer, Insurance, Security, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Trash, Reserve Funds
Association Amenities: Pool, Laundry, Elevator(s), Tennis Court(s), Fitness Center, Sauna/Steam, Clubroom, Storage, Garden Area, Clubhouse

Location Information
Directions: Use GPS.
UnparsedAddress: 3 Seal Harbor Rd # 447, Winthrop MA 02152

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Pool, Tennis Court(s), Park, Walk/Jog Trails, Golf, Medical Facility, Bike Path, House of Worship, Marina, Public School
Pets Allowed: Yes w/ Restrictions

Public facts

Beds: 2
Baths: 2.0
Sq. Ft.: 1,320
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1987
Year Renovated: 1989
County: —
APN: 1425359

Home facts updated by county records on Jul 20, 2023

Other

Listing Information
StandardStatus: Closed

Around this home

Schools

K - 12
Preschool & daycare

William P. Gorman/Fort Banks Elementary School

Public PreK-2 • Assigned • 0.7mi

Winthrop Middle School

Public 6-8 • Assigned • 0.8mi

8/10

Winthrop Senior High School

Public 9-12 • Assigned • 0.8mi

5/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Historical weather

Winthrop, MA • 02152

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9.2 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

9.2 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$572,000 – $693,000

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Home values near 3 Seal Harbor Rd #447

Data from public records.

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 136, Winthrop, MA 2 Beds \| 2.5 Baths \| 1505 Sq. Ft.	$707,159
3 Seal Harbor Rd Apartment 242, Winthrop, MA 2 Beds \| 2 Baths \| 1302 Sq. Ft.	$648,184
3 Seal Harbor Rd Apartment 334, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$511,394
3 Seal Harbor Rd Apartment 431, Winthrop, MA 1 Beds \| 1.5 Baths \| 1010 Sq. Ft.	$520,105
3 Seal Harbor Rd Apartment 448, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$577,401
3 Seal Harbor Rd Apartment 546, Winthrop, MA 2 Beds \| 2 Baths \| 1202 Sq. Ft.	$590,557
3 Seal Harbor Rd Apartment 735, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$618,151

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 232, Winthrop, MA 1 Beds \| 2 Baths \| 1263 Sq. Ft.	$619,687
3 Seal Harbor Rd Apartment 331, Winthrop, MA 1 Beds \| 1.5 Baths \| 1033 Sq. Ft.	$468,631
3 Seal Harbor Rd Apartment 335, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$754,789
3 Seal Harbor Rd Apartment 436, Winthrop, MA 3 Beds \| 2.5 Baths \| 1674 Sq. Ft.	$1,118,670
3 Seal Harbor Rd Apartment 532, Winthrop, MA 1 Beds \| 2.5 Baths \| 1345 Sq. Ft.	$587,054
3 Seal Harbor Rd Apartment 631, Winthrop, MA 1 Beds \| 1.5 Baths \| 1033 Sq. Ft.	$530,012
3 Seal Harbor Rd Apartment 737, Winthrop, MA 2 Beds \| 2 Baths \| 1318 Sq. Ft.	$652,433

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 233, Winthrop, MA 2 Beds \| 2 Baths \| 1286 Sq. Ft.	$612,832
3 Seal Harbor Rd Apartment 332, Winthrop, MA 1 Beds \| 2 Baths \| 1263 Sq. Ft.	$542,991
3 Seal Harbor Rd Apartment 341, Winthrop, MA 1 Beds \| 1 Baths \| 871 Sq. Ft.	$455,695
3 Seal Harbor Rd Apartment 443, Winthrop, MA 1 Beds \| 1 Baths \| 838 Sq. Ft.	$487,963
3 Seal Harbor Rd Apartment 533, Winthrop, MA 2 Beds \| 2 Baths \| 1286 Sq. Ft.	$589,416
3 Seal Harbor Rd Apartment 731, Winthrop, MA 1 Beds \| 1.5 Baths \| 1033 Sq. Ft.	$570,202
3 Seal Harbor Rd Apartment 748, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$686,658

Property information provided by MLS PIN when last listed in 2021. This data may not match . Learn more.

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