2 beds1,674 sqft$514/sqft
3 Seal Harbor Rd, Unit 336, Winthrop, MA 02152
Est: $6,609/moGet pre-approved

Description

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...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 2 spots tandem(D41T), outdoor/guest parking, heated indoor pool/hot tub, outdoor pool, storage closet, clubhouse, tennis courts and so much more.
LISTING UPDATED: 08/07/2026 10:58 AM

  1. Listed by Cathie Curran • Charlesgate Realty Group, llc

Property Details for 3 Seal Harbor Road, Unit 336

Status
MLS #
73554136
Days on Market
16
Taxes
$10,484 / year
HOA Fees
$1,365
Property Type
MLS Type
Condominium/Co-Op / Condo
Year Built
1987
Town
Winthrop
MLS Area
Winthrop Highlands
Area
MA-Winthrop-Winthrop Highlands, MA-Winthrop
Style
High-Rise
Garage Spaces
2
Open Parking Spaces
1.00
Parking Spaces Total
3
Unit Placement
End, Corner

Location

Listing Courtesy of Charlesgate Realty Group, llc, Cathie Curran
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Building Information for 3 Seal Harbor Road, Unit 336

Building/ComplexSeal Harbor Three CondominiumFloor3Stories-Residences117Pet PolicyNot AllowedPet Policy DetailsPets AllowedYear Built1987

Payment Calculator

$6,609 per month

30 year fixed, 6.55% Interest

Principal and Interest

$4,371

Property Taxes

$874

HOA Dues

$1,365

The Payment Calculator is for illustrative purposes only.

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Property Information for 3 Seal Harbor Road, Unit 336

General Details
Property Details
  • Association Amenities: Pool, Laundry, Elevator(s), Tennis Court(s), Fitness Center, Sauna/Steam, Clubroom, Trail(s), Storage
  • Building Area Units: Square Feet
  • Community Features: Public Transportation, Shopping, Swimming Pool, Tennis Court, Park, Walk/Jog Trails, Medical Facility, Laundromat, Bike Path, Conservation Area, House of Worship, Public School
  • Living Area: 1674.0
  • SqFt with Basement: No
  • Total Units: 117
  • Property Attached: Yes
  • Type of Condo: Condo
  • Waterfront: Yes
  • Water View: Yes
  • Year Built Details: Actual
  • Year Built Source: Public Records
Features
Interior Features
  • Appliances: Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
  • Basement Features: Y
  • Common Walls: End, Corner
  • Num of Baths: 2.0
  • Num of Full Baths: 1
  • Num of Half Baths: 1
  • Bathrooms Total Decimal: 1.50
  • Bathrooms Total Integer: 2
  • DoorFeatures: Insulated Doors
  • FireplaceYN: No
  • Fireplaces: 0
  • Flooring: Wood, Tile, Hardwood
  • Interior Features: Intercom, Indoor Pool
  • Laundry Features: Common Area, In Building, In Unit, Electric Dryer Hookup
  • Spa Features: Hot Tub/Spa
  • SpaYN: Yes
  • Window Features: Insulated Windows
Exterior Features
  • Construction: Brick
  • Exterior Features: Deck - Roof, Deck - Access Rights, Deck - Roof + Access Rights, Covered, Balcony, Hot Tub/Spa, Gazebo, Professional Landscaping, Sprinkler System, Tennis Court
  • Exterior Features: Hot Tub/Spa, Pool - Inground, Pool - Above Ground Heated, Gazebo, Balcony, Professional Landscaping, Sprinkler System, Tennis Court, Deck - Roof, Covered Patio/Deck
  • Fencing: Security
  • Other Structures: Gazebo
  • Patio And Porch Features: Deck - Roof, Deck - Access Rights, Deck - Roof + Access Rights, Covered
  • Pool Features: Association, In Ground, Indoor, Heated
  • Roof Material: Rubber
  • Structure Type: High-Rise
  • Waterfront Features: Waterfront, Ocean, Frontage, Walk to, Public, 3/10 to 1/2 Mile To Beach, Beach Ownership(Public)
  • Waterview Features: Ocean, Public, Walk to
Parking Features
  • Attached Garage: Yes
  • Carport: No
  • Covered Spaces: 2.00
  • Garage: Yes
  • Garage Parking: Under, Heated, Deeded, Off-Street, Tandem, On Street Permit, Common, Guest, Paved Driveway, Exclusive Parking
  • Open Parking: Yes
  • Parking Features: Under, Heated, Deeded, Off-Street, Tandem, On Street Permit, Common, Guest, Paved Driveway, Exclusive Parking
  • Parking Features: Heated, Deeded, Off-Street, Tandem, On Street Permit, Common, Guest, Paved Driveway, Exclusive Parking
Utilities
  • Cooling: Heat Pump, Individual, Unit Control
  • Cooling: Yes
  • Electric: Circuit Breakers
  • Green Energy Efficient: Thermostat
  • Heating: Heat Pump, Electric, Individual, Unit Control
  • Heating: Yes
  • Sewage District: MWRA
  • Sewer: City/Town Sewer
  • Utility Connections: for Electric Range, for Electric Oven, for Electric Dryer
  • Water: Public
Room Information
Primary Bedroom
  • Room Primary Bedroom Features: Bathroom - Full,Walk-In Closet(s),Closet/Cabinets - Custom Built,Flooring - Marble,Steam / Sauna
  • Primary Bedroom Level: Third Floor
Bedroom 2
  • Bedroom2 Level: Third
Bathroom 1
  • Bathroom1 Features: Bathroom - Half
  • Bathroom1 Level: Third
Bathroom 2
  • Bathroom2 Features: Bathroom - Full,Bathroom - With Tub & Shower,Flooring - Marble,Countertops - Stone/Granite/Solid,Jacuzzi / Whirlpool Soaking Tub,Remodeled
  • Bathroom2 Level: Third
Dining Room
  • Dining Room Level: Third
Kitchen
  • Kitchen Features: Countertops - Stone/Granite/Solid,Kitchen Island,Cabinets - Upgraded,Open Floorplan,Recessed Lighting,Remodeled,Stainless Steel Appliances
  • Kitchen Level: Third
Living Room
  • Room Living Room Level: Third
Property Information
Property Info
  • Year Round: Yes
  • Documents Available: Unit Deed, Floor Plans
  • Documents Count: 2
  • Farm Land Area Units: Square Feet
  • WARRANTY: No
  • Lot Size Units: Acres
  • Disclosures: All information presented is as of listing entry date and is subject to change. Buyer agents should use due diligence and verify all information. Kitchen vent hood is not working at this time. Towel warmer in primary bath is not working.
Tax Information
  • Tax ID: 23478523
  • Assessments: $941,100
  • Book: 58967
  • Tax Year: 2026
  • Zoning: res
Building / Association Information
Living Characteristics
  • Beds Total: 2
  • Total Living Levels: 1
Complex & Association Information
  • Association Fee Includes: Water, Sewer, Insurance, Security, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Trash, Reserve Funds
  • Complex Name: Seal Harbor Three Condominium
  • Complex Complete: Yes
  • Management: Professional - On Site, Owner Association
  • Association Security: Intercom, TV Monitor, Doorman, Concierge
  • Adult Community: No
Unit Information
Unit Information
  • Unit Building: 336
  • Unit Floor Level Integer: 3.0

Property History for 3 Seal Harbor Road, Unit 336

DateEvent & SourcePriceAppreciation
Jul 23, 2026

Listed (Active)

MLS PIN #73554136

$859,900
Jul 1, 2025

Expired

MLS PIN #73329908

$859,000
Feb 5, 2025

Temporarily Withdrawn

MLS PIN #73329908

$859,000
DateEvent & SourcePrice
07/23/2026

Listed (Active)

MLS PIN #73554136

$859,900
07/01/2025

Expired

MLS PIN #73329908

$859,000
02/05/2025

Temporarily Withdrawn

MLS PIN #73329908

$859,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 3 Seal Harbor Road, Unit 336

Taxable ValueLand-Additions$891,500Total-
Tax Record2025$9,200 ($767 / month)
Home Facts
Beds3Baths2.5Total Finished SqFt1,674 SqFtAbove Grade Finished SqFt1,674 SqFtStories1StyleCondominiumYear Built1987Year Renovated1989CountySUFFOLKAPNWINT M:074 L:016-3336

Schools near 3 Seal Harbor Road, Unit 336

This home is within Winthrop School District.
Rating
School
Type
Grades
Distance
Public - PK to 2
Public - 3 to 5
Public - 6 to 8
Public - 9 to 12
Rating
School
Distance
Arthur T. Cummings Elementary School
Public3 to 5

Winthrop Middle School
Public6 to 8

Winthrop Sr High School
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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3 Seal Harbor Road, Unit 336 is a condo for sale in Winthrop, MA 02152. This property was listed for sale on July 23, 2026 by Charlesgate Realty Group, llc, it's currently listed at $859,900. It has been on the market for a total of 16 days and was last sold on December 21, 2017. This listing's school district is Winthrop School District. Nearby schools include William P. Gorman/Fort Banks Elementary School, Arthur T. Cummings Elementary School and Winthrop Middle School. 3 Seal Harbor Road, Unit 336 is a 2-bed, 2-bath, 1,674 sqft condo built in 1987.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties make no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Charlesgate Realty Group, llc, Cathie Curran

The property listing data and information, or the images, set forth herein were provided to MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS. The property listing data and information, and the images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the images, set forth herein.