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3 Seal Harbor # 336, Winthrop MA 02152

$859,900

Estimated $6,172/month Calculator

Condo

2 Bedrooms

Baths

1674

Total Parking: 3 (1 Garage)

Built in 1987

A rare offering at the prestigious Seal Harbor III, this exceptional corner residence captures breathtaking panoramic water views from an expansive, light filled interior and a private balcony - perfect for enjoying morning coffee, evening sunsets, or simply taking in the every changing waterfront scenery. Completely reimagined with a full gut reno in 2010, the home showcases timeless design, an open concept floor plan, and impeccable craftsmanship throughout. Thoughtfully curated with luxurious finishes and custom details, the residence is designed for both elegant entertaining and effortless everyday living. The spa-inspired primary bath features a steam shower, while the versatile second bedroom-equally suited as a den or private office-is enhanced by a striking custom leather accent wall. Seal Harbor III offers an unmatched lifestyle with exceptional amenities, including 24 hour concierge deeded garage parking (D41T), outdoor parking, heated indoor pool/hot tub, outdoor pool, storage closet, clubhouse, tennis courts and so much more.

This home has been viewed 4 times

Last Checked: July 25th, 2026 at 7:58am (Source: MLS PIN #73554136)

Garage Parking

Green Features

Air Conditioning

Waterview

Lead Paint Free

General Information for 3 Seal Harbor # 336, Winthrop MA 02152

Listing ID73554136

Property TypeCondominium

Price859900 ($513.68/SqFt)

Building Style2/3 Family

CityWinthrop

CountySuffolk

MLS AreaWinthrop Highlands

Neighborhood(s)

Total Parking3 (1 Garage)

Unit Level3

Levels in Unit1

Year Built1987

Year Built SourcePublic Records

Year Built DetailsActual

Building Construction StatusReady for Occupancy

Zoningres

Unit Features for 3 Seal Harbor # 336, Winthrop MA 02152

Approximate Living Area Total1674

Living Area Includes BasementNo

Rooms5

Bedrooms2

Primary En Suite BathroomYes

BasementFull

Cooling1, Split

LaundryArchway

Fireplaces

Outdoor SpaceNo

FlooringTile

Electric220 Volts

AppliancesRange

Condo Association Features for 3 Seal Harbor # 336, Winthrop MA 02152

Complex NameSeal Harbor Three Condominium

Pet PolicyNot Allowed

Building ManagementDeveloper Advisory Board

Building Construction StatusReady for Occupancy

Number of Units117

Year Built1987

Year Built DetailsActual

Year Built SourcePublic Records

WaterPublic

SewerPublic Sewer

Parking Features1

Building AmenitiesBeach Rights

Disclosures for 3 Seal Harbor # 336, Winthrop MA 02152

Lead PaintNone

UFFI

Living Area Includes BasementNo

Living Area Disclosure

Building Area SourcePublic Records

Special Listing Conditions

ExclusionsElectric Fireplace

Compensation Based On

Documents AvailablePerc Test

Financial Information for 3 Seal Harbor # 336, Winthrop MA 02152

Association Fee

Optional Fee0

Association Fee IncludesLandscaping

Optional Fee Includes

Association Fee Frequency

Assessed Value$941,100

Real Estate Tax10484

Tax Year2026

Location Information for 3 Seal Harbor # 336, Winthrop MA 02152

Neighborhood(s)

MLS AreaWinthrop Highlands

Area AmenitiesWalk/jog Trails

Contact Information for 3 Seal Harbor # 336, Winthrop MA 02152

Agent

Name: Cathie Curran

Office

Name: Charlesgate Realty Group, llc

Phone: 617-587-0100

Payment Calculator

, Interest

Property Taxes 873.67

Principal & Interest 5298.43

HOA Dues

Term

Interest

Home Price

Down Payment

Exclusive Listing Agent

Charlesgate Realty Group, llc

Cathie Curran

Agent Phone

Office Phone

(617) 587-0100

Text Agent Call Agent Call Office

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EXIT

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