Google satellite image for 3 Seal Harbor Rd #731, Winthrop, MA 02152

Off market oct 2001 for $250K

$570,202

Est. refi paymentEst. refi $1,658/mo

•

1.5 ba

•

1,033

sq ft

3 Seal Harbor Rd #731, Winthrop, MA 02152

About this home

3 Seal Harbor Rd #731 is a 1,033 square foot condo with 1 bedroom and 1.5 bathrooms. - it last sold on October 01, 2001 for $250,000. Based on Redfin's Winthrop data, we estimate the home's value is $570,202.

CondoProperty Type

1987Year Built

$552Est. Price/Sq.Ft.

1 garage spacesParking

Source:Public Records

Redfin Estimate

$570,202

$320K since sold in October 2001$5,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 2.7% lower than the average sale price ($586K) of 6 comparable homes.

SOLD AUG 20, 2026
$550,000
A
1 bed1 bath994 sq ft
1 Seal Harbor Rd #300, Winthrop, MA 02152
SOLD BY REDFIN OCT 23, 2026
$623,000
B
2 beds2 baths1,302 sq ft
3 Seal Harbor Rd #342, Winthrop, MA 02152
SOLD JUN 23, 2026
$575,000
C
1 bed1 bath1,005 sq ft
1 Seal Harbor Rd #401, Winthrop, MA 02152
SOLD MAY 15, 2026
$549,000
D
1 bed1 bath1,005 sq ft
1 Seal Harbor Rd #701, Winthrop, MA 02152
SOLD AUG 26, 2026
$589,000
E
2 beds2 baths1,241 sq ft
1 Seal Harbor Rd #116, Winthrop, MA 02152
SOLD MAY 19, 2026
$630,000
F
1 bed1 bath910 sq ft
3 Seal Harbor Rd #133, Winthrop, MA 02152

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$490,943

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 #731

Year

Property tax

Land + Additions

Assessment*

2023

$4,764 (+1.0%)

$445,200

2022

$4,717 (−2.1%)

$401,100

2021

$4,817 (+3.6%)

$379,900

2020

$4,649 (−1.0%)

$368,400

2019

$4,697 (−4.4%)

$356,400

2018

$4,911 (+2.9%)

$346,800

2017

$4,771 (−1.9%)

$331,100

2016

$4,865 (+18.5%)

$316,500

2014

$4,107 (−1.5%)

$263,600

2013

$4,170 (+2.9%)

$279,700

2012

$4,053 (−2.1%)

$279,700

2011

$4,140 (−3.5%)

$300,000

2010

$4,291 (+26.9%)

$337,900

2009

$3,381

$339,100

Tax history for 3 Seal Harbor Rd #731

Year

Property tax

Land + Additions

Assessment*

2023

$4,764 (+1.0%)

$445,200

2022

$4,717 (−2.1%)

$401,100

2021

$4,817 (+3.6%)

$379,900

2020

$4,649 (−1.0%)

$368,400

2019

$4,697 (−4.4%)

$356,400

2018

$4,911 (+2.9%)

$346,800

2017

$4,771 (−1.9%)

$331,100

2016

$4,865 (+18.5%)

$316,500

2014

$4,107 (−1.5%)

$263,600

2013

$4,170 (+2.9%)

$279,700

2012

$4,053 (−2.1%)

$279,700

2011

$4,140 (−3.5%)

$300,000

2010

$4,291 (+26.9%)

$337,900

2009

$3,381

$339,100

*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
# of 1/2 Baths: 1

Heating & Cooling
Heating Type: Forced Hot Water

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
Living Sq. Ft: 1,033
Gross Sq. Ft: 1,153
# 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: 1.5
Sq. Ft.: 1,033
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1987
Year Renovated: 1989
County: —
APN: 1425391

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

$542,000 – $656,000

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OPEN TODAY, 11AM TO 12:30PM

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OPEN TODAY, 11AM TO 12:30PM

$889,000

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Home values near 3 Seal Harbor Rd #731

Data from public records.

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 134, Winthrop, MA 1 Beds \| 1 Baths \| 897 Sq. Ft.	$456,973
3 Seal Harbor Rd Apartment 333, Winthrop, MA 2 Beds \| 2 Baths \| 1286 Sq. Ft.	$630,214
3 Seal Harbor Rd Apartment 345, Winthrop, MA 2 Beds \| 2 Baths \| 1310 Sq. Ft.	$608,173
3 Seal Harbor Rd Apartment 435, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$572,841
3 Seal Harbor Rd Apartment 446, Winthrop, MA 2 Beds \| 2 Baths \| 1202 Sq. Ft.	$638,382
3 Seal Harbor Rd Apartment 631, Winthrop, MA 1 Beds \| 1.5 Baths \| 1033 Sq. Ft.	$530,012
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 136, Winthrop, MA 2 Beds \| 2.5 Baths \| 1505 Sq. Ft.	$707,159
3 Seal Harbor Rd Apartment 334, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$511,394
3 Seal Harbor Rd Apartment 346, Winthrop, MA 2 Beds \| 2 Baths \| 1202 Sq. Ft.	$641,011
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 734, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$502,973

Address	Redfin Estimate
3 Seal Harbor Rd Apartment 244, Winthrop, MA 2 Beds \| 2 Baths \| 1302 Sq. Ft.	$590,550
3 Seal Harbor Rd Apartment 344, Winthrop, MA 2 Beds \| 2 Baths \| 1302 Sq. Ft.	$628,164
3 Seal Harbor Rd Apartment 434, Winthrop, MA 1 Beds \| 1 Baths \| 840 Sq. Ft.	$485,984
3 Seal Harbor Rd Apartment 441, Winthrop, MA 1 Beds \| 1 Baths \| 871 Sq. Ft.	$471,857
3 Seal Harbor Rd Apartment 535, Winthrop, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$581,663
3 Seal Harbor Rd Apartment 641, Winthrop, MA 1 Beds \| 1 Baths \| 871 Sq. Ft.	$464,681
3 Seal Harbor Rd Apartment 737, Winthrop, MA 2 Beds \| 2 Baths \| 1318 Sq. Ft.	$652,433

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