Google satellite image for 3 Seal Harbor Rd #443, Winthrop, MA 02152

Off market oct 2004 for $315K

$487,963

Est. refi paymentEst. refi $2,089/mo

•

1 ba

•

838

sq ft

3 Seal Harbor Rd #443, Winthrop, MA 02152

About this home

3 Seal Harbor Rd #443 is a 838 square foot condo with 1 bedroom and 1 bathroom. - it last sold on October 29, 2004 for $315,000. Based on Redfin's Winthrop data, we estimate the home's value is $487,963.

CondoProperty Type

1987Year Built

$582Est. Price/Sq.Ft.

1 garage spacesParking

Source:Public Records

Redfin Estimate

$487,963

$173K since sold in October 2004$4,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.9% lower than the average sale price ($493K) 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 1, 2026
$315,000
F
1 bed1 bath704 sq ft
376 Ocean Ave #207, Revere, MA 02151

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$364,780

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 #443

Year

Property tax

Land + Additions

Assessment*

2023

$3,705 (+0.9%)

$346,300

2022

$3,671 (+10.0%)

$312,200

2021

$3,337 (+0.5%)

$263,200

2020

$3,322 (−4.2%)

$263,200

2019

$3,469 (−6.9%)

$263,200

2018

$3,727 (−1.7%)

$263,200

2017

$3,793 (−6.2%)

$263,200

2016

$4,045 (−1.4%)

$263,200

2014

$4,101 (+4.5%)

$263,200

2013

$3,924 (+2.9%)

$263,200

2012

$3,814 (+5.0%)

$263,200

2011

$3,632 (+0.7%)

$263,200

2010

$3,606 (+35.4%)

$283,900

2009

$2,663

$267,100

Tax history for 3 Seal Harbor Rd #443

Year

Property tax

Land + Additions

Assessment*

2023

$3,705 (+0.9%)

$346,300

2022

$3,671 (+10.0%)

$312,200

2021

$3,337 (+0.5%)

$263,200

2020

$3,322 (−4.2%)

$263,200

2019

$3,469 (−6.9%)

$263,200

2018

$3,727 (−1.7%)

$263,200

2017

$3,793 (−6.2%)

$263,200

2016

$4,045 (−1.4%)

$263,200

2014

$4,101 (+4.5%)

$263,200

2013

$3,924 (+2.9%)

$263,200

2012

$3,814 (+5.0%)

$263,200

2011

$3,632 (+0.7%)

$263,200

2010

$3,606 (+35.4%)

$283,900

2009

$2,663

$267,100

*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: 1425355

Home facts updated by county records on Jul 20, 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

FOR SALE BY OWNER

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3 beds2 baths1,515 sq ft

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OPEN TODAY, 11AM TO 12:30PM

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New construction • Electric fireplaces • Private entrance

OPEN TODAY, 11AM TO 12:30PM

$889,000

3 beds2 baths2,916 sq ft

115 Read St #2, Winthrop, MA 02152

New construction • Electric fireplaces • Private entrance

Home values near 3 Seal Harbor Rd #443

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 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 537, Winthrop, MA 2 Beds \| 2 Baths \| 1309 Sq. Ft.	$707,914
3 Seal Harbor Rd Apartment 632, Winthrop, MA 1 Beds \| 2 Baths \| 1263 Sq. Ft.	$635,576
3 Seal Harbor Rd Apartment 741, Winthrop, MA 1 Beds \| 1 Baths \| 871 Sq. Ft.	$440,466

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 133, Winthrop, MA 1 Beds \| 1 Baths \| 910 Sq. Ft.	$577,480
3 Seal Harbor Rd Apartment 337, Winthrop, MA 2 Beds \| 2 Baths \| 1318 Sq. Ft.	$648,784
3 Seal Harbor Rd Apartment 344, Winthrop, MA 2 Beds \| 2 Baths \| 1302 Sq. Ft.	$628,164
3 Seal Harbor Rd Apartment 531, Winthrop, MA 1 Beds \| 1.5 Baths \| 1033 Sq. Ft.	$513,122
3 Seal Harbor Rd Apartment 543, Winthrop, MA 1 Beds \| 1 Baths \| 838 Sq. Ft.	$488,197
3 Seal Harbor Rd Apartment 635, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$595,176
3 Seal Harbor Rd Apartment 742, Winthrop, MA 2 Beds \| 2 Baths \| 1283 Sq. Ft.	$677,992

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 237, Winthrop, MA 2 Beds \| 2 Baths \| 1318 Sq. Ft.	$653,080
3 Seal Harbor Rd Apartment 341, Winthrop, MA 1 Beds \| 1 Baths \| 871 Sq. Ft.	$455,695
3 Seal Harbor Rd Apartment 433, Winthrop, MA 2 Beds \| 2 Baths \| 1286 Sq. Ft.	$535,172
3 Seal Harbor Rd Apartment 534, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$504,228
3 Seal Harbor Rd Apartment 547, Winthrop, MA 2 Beds \| 2 Baths \| 1320 Sq. Ft.	$581,998
3 Seal Harbor Rd Apartment 642, Winthrop, MA 2 Beds \| 2 Baths \| 1315 Sq. Ft.	$699,837
3 Seal Harbor Rd Apartment 744, Winthrop, MA 2 Beds \| 2 Baths \| 1302 Sq. Ft.	$715,106

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