OFF MARKET

Off market aug 2020 for $389K

$488,352

Est. refi paymentEst. refi $2,580/mo

•

1 ba

•

838

sq ft

3 Seal Harbor Rd #643, Winthrop, MA 02152

About this home

WATERFRONT, Impressive Seal Harbor Three Condominiums, Ocean views the moment you open the front door! Southern exposure that includes views of Winthrop Beach, the Five Sisters ,Winthrop's famous Water Tower and Deer Island. Amenities include 24 hour concierge security, outdoor pool, indoor lap pool, whirlpool, roof top deck, exercise facility, sauna, function rooms, extra storage in basement, deeded garage parking, visitor parking, tennis courts and much more. All this and just minutes to Downtown Boston! New Ferry to Boston arriving soon! If you love boating, fishing or just enjoy soaking up the sun at one of the many beaches, Winthrop is the place to live. Brand new Schools, Marinas, Yacht Clubs, and delicious Restaurants compliment our quaint Winthrop By the Sea community! This 1 bedrm unit has an open floor plan LR/ DR leads to good size ocean front balcony, kitchen has SS appliances, breakfast bar, in unit laundry, and walk in closet!! Call NOW before it's gone!

CondoProperty Type

1987Year Built

$583Est. Price/Sq.Ft.

1 garage spacesParking

Listed by Linda Calla • Highland Real Estate

Bought with Sheryl Howard • Highland Real Estate

Source:MLS PIN #71974830

Redfin Estimate

$488,352

$99K since sold in August 2020$7,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 4.6% lower than the average sale price ($512K) of 6 comparable homes.

SOLD APR 3, 2026
$515,000
A
1 bed1 bath840 sq ft
3 Seal Harbor Rd #634, Winthrop, MA 02152
SOLD MAY 19, 2026
$630,000
B
1 bed1 bath910 sq ft
3 Seal Harbor Rd #133, Winthrop, MA 02152
SOLD AUG 20, 2026
$550,000
C
1 bed1 bath994 sq ft
1 Seal Harbor Rd #300, Winthrop, MA 02152
SOLD SEP 11, 2026
$370,000
D
2 beds1 bath782 sq ft
1000 Governor's Dr #15, Winthrop, MA 02152
SOLD JUN 23, 2026
$575,000
E
1 bed1 bath1,005 sq ft
1 Seal Harbor Rd #401, Winthrop, MA 02152
SOLD SEP 21, 2026
$430,000
F
1 bed1 bath875 sq ft
350 Revere Beach Blvd Unit 7S, Revere, MA 02151

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$190,149

Est. take-home

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Est. cash available

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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

FOR SALE BY OWNER
$675,000
3 beds1 bath1,198 sq ft
25 North Ave, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$699,000
3 beds1.5 baths2,053 sq ft
65 Sunnyside Ave, Winthrop, MA 02152
OPEN TODAY, 12PM TO 1:30PM
$730,000
3 beds1.5 baths1,406 sq ft
9 Lincoln St, Winthrop, MA 02152
$835,000
6 beds3 baths2,424 sq ft
11-15 Sturgis St, Winthrop, MA 02152
$365,000
2 beds1 bath782 sq ft
200 Governors Dr #19, Winthrop, MA 02152
OPEN TODAY, 12PM TO 1:30PM
$865,000
2 beds2.5 baths1,806 sq ft
1001 Shirley St #2, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$649,900
3 beds2 baths1,515 sq ft
19 Beal St, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$869,000
3 beds2 baths1,925 sq ft
115 Read St #1, Winthrop, MA 02152
OPEN TODAY, 11AM TO 12:30PM
$889,000
3 beds2 baths2,916 sq ft
115 Read St #2, Winthrop, MA 02152
OPEN TODAY, 11:30AM TO 1PM
$629,900
2 beds1 bath1,166 sq ft
96 Marshall St, Winthrop, MA 02152
See all

Provided by Redfin

Sale history for 3 Seal Harbor Rd #643

Date

Event

Price

Public Records

Aug 31, 2020

Sold

$389,000

$464/sq ft

MLS PIN #71974830

Apr 29, 2016

Sold

$310,000

$370/sq ft

Mar 20, 2016

Pending

—

Mar 18, 2016

Listed

$310,000

$370/sq ft

+15

MLS PIN #71735935

Aug 10, 2015

Sold

$290,000

$346/sq ft

Jun 29, 2015

Pending

—

Jun 24, 2015

Price Changed

$297,888

$355/sq ft

Mar 5, 2015

Relisted

—

Feb 28, 2015

Listing Removed

—

Sep 1, 2014

Listed

$308,888

$369/sq ft

+25

CLASSIC SEAL HARBOR 3! HERE WE ARE!There is only one word to describe this condo:STUNNING!! Ocean views from every room:! Master Bedroom,Living Room, Dining Room and even Kitchen! Delightful Balcony overlook ocean. Unit is situated in front of building with sun and during the evening the ocean is lit by surrounding buildings. Breathtaking views during day as well as evening. Garage parking plus exterior common parking plentiful.All amenities:outdoor pool abutts ocean, penthouse level indoor pool with exterior roof top deck, function room & sauna. Exercise and gaze out at the ocean. It is like you are on vacation on a cruise boat year round! 24 Hour Conseirge Service. Simply THE BEST!! Garage Space #C36

MLS PIN #71567449

Sep 26, 2013

Sold

$275,000

$328/sq ft

Aug 13, 2013

Contingent

—

Aug 9, 2013

Listed

$279,000

$333/sq ft

Public Records

Jul 24, 1998

Sold

$139,000

$166/sq ft

MLS PIN #50314161

Apr 30, 1996

Sold

$110,000

$131/sq ft

Mar 2, 1996

Listing Removed

—

Jan 25, 1996

Listed

$120,000

$143/sq ft

Public Records

Apr 28, 1995

Sold

$95,000

$113/sq ft

Public Records

Jul 26, 1989

Sold

$150,000

$179/sq ft

Year

Property tax

Land + Additions

Assessment*

2023

$4,278 (+1.0%)

$399,800

2022

$4,237 (−2.1%)

$360,300

2021

$4,328 (+3.6%)

$341,300

2020

$4,178 (−1.1%)

$331,100

2019

$4,223 (−0.7%)

$320,400

2018

$4,252 (+3.0%)

$300,300

2017

$4,130 (+1.9%)

$286,600

2016

$4,052 (+18.7%)

$263,600

2014

$3,414 (−0.4%)

$219,100

2013

$3,428 (+2.9%)

$229,900

2012

$3,331 (−7.3%)

$229,900

2011

$3,592 (−6.6%)

$260,300

2010

$3,844 (+28.4%)

$302,700

2009

$2,994

$300,300

Tax history for 3 Seal Harbor Rd #643

Year

Property tax

Land + Additions

Assessment*

2023

$4,278 (+1.0%)

$399,800

2022

$4,237 (−2.1%)

$360,300

2021

$4,328 (+3.6%)

$341,300

2020

$4,178 (−1.1%)

$331,100

2019

$4,223 (−0.7%)

$320,400

2018

$4,252 (+3.0%)

$300,300

2017

$4,130 (+1.9%)

$286,600

2016

$4,052 (+18.7%)

$263,600

2014

$3,414 (−0.4%)

$219,100

2013

$3,428 (+2.9%)

$229,900

2012

$3,331 (−7.3%)

$229,900

2011

$3,592 (−6.6%)

$260,300

2010

$3,844 (+28.4%)

$302,700

2009

$2,994

$300,300

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

Property details

Interior

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Heating Type: Forced Air

Exterior

Exterior Information
Physical Condition: Average
Exterior Wall: Brick
Roof Covering Type: Rubber/Elastomeric
Roof Shape Type: Flat

Property Information
Subdivision Name: SEAL HARBOR 03 CONDO
Living Sq. Ft: 838
Gross Sq. Ft: 958
# of Units: 1
# of Stories: 1

Lot Information
# of Buildings: 1
Municipality Name: WINTHROP
State Use Description: CONDOMINIUM

Financial

Assessor Information
Assessment Year: 2023

Public facts

Beds: 1
Baths: 1.0
Sq. Ft.: 838
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1987
Year Renovated: 1989
County: —
APN: 1425385

Home facts updated by county records on Aug 25, 2023

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

$464,000 – $562,000

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New listings for sale in 02152

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Home values near 3 Seal Harbor Rd #643

Data from public records.

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 132, Winthrop, MA 1 Beds \| 2 Baths \| 1341 Sq. Ft.	$560,362
3 Seal Harbor Rd Apartment 244, Winthrop, MA 2 Beds \| 2 Baths \| 1302 Sq. Ft.	$590,550
3 Seal Harbor Rd Apartment 342, Winthrop, MA 2 Beds \| 2 Baths \| 1302 Sq. Ft.	$625,899
3 Seal Harbor Rd Apartment 433, Winthrop, MA 2 Beds \| 2 Baths \| 1286 Sq. Ft.	$535,172
3 Seal Harbor Rd Apartment 445, Winthrop, MA 2 Beds \| 2 Baths \| 1310 Sq. Ft.	$584,906
3 Seal Harbor Rd Apartment 537, Winthrop, MA 2 Beds \| 2 Baths \| 1309 Sq. Ft.	$707,914
3 Seal Harbor Rd Apartment 635, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$595,176

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 235, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$624,714
3 Seal Harbor Rd Apartment 246, Winthrop, MA 2 Beds \| 2 Baths \| 1202 Sq. Ft.	$568,163
3 Seal Harbor Rd Apartment 343, Winthrop, MA 1 Beds \| 1 Baths \| 823 Sq. Ft.	$474,203
3 Seal Harbor Rd Apartment 436, Winthrop, MA 3 Beds \| 2.5 Baths \| 1674 Sq. Ft.	$1,118,670
3 Seal Harbor Rd Apartment 446, Winthrop, MA 2 Beds \| 2 Baths \| 1202 Sq. Ft.	$638,382
3 Seal Harbor Rd Apartment 632, Winthrop, MA 1 Beds \| 2 Baths \| 1263 Sq. Ft.	$635,576
3 Seal Harbor Rd Apartment 642, Winthrop, MA 2 Beds \| 2 Baths \| 1315 Sq. Ft.	$699,837

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 236, Winthrop, MA 3 Beds \| 2.5 Baths \| 1674 Sq. Ft.	$812,081
3 Seal Harbor Rd Apartment 332, Winthrop, MA 1 Beds \| 2 Baths \| 1263 Sq. Ft.	$542,991
3 Seal Harbor Rd Apartment 347, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$596,742
3 Seal Harbor Rd Apartment 437, Winthrop, MA 2 Beds \| 2 Baths \| 1318 Sq. Ft.	$1,015,500
3 Seal Harbor Rd Apartment 534, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$504,228
3 Seal Harbor Rd Apartment 634, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$503,747
3 Seal Harbor Rd Apartment 733, Winthrop, MA 2 Beds \| 2 Baths \| 1286 Sq. Ft.	$648,956

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