Sold Jun 6, 2026$777,000
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Active
3 Seal Harbor #336
Winthrop, MA 02152
Offered at$859,900
Residential · Active · MLS #73554136
Listing Courtesy of Charlesgate Realty Group, llc | Cathie Curran
2Bedrooms
2Bathrooms
1,674Square feet
1987Year built
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MLS PIN data
About this home
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.
Property information
Details at a glance
Interior
- Rooms
- 5
- Heating
- Heat Pump, Electric, Individual, Unit Control
- Cooling
- Heat Pump, Individual, Unit Control
- Flooring
- Wood, Tile, Hardwood
Building
- Style
- Condominium
- Year built
- 1987
- Garage
- 2
- Parking
- 3
- Roof
- Rubber
Land & utilities
- Water
- Public
- Sewer
- Public Sewer
- Waterfront
- Y
- Zoning
- res
Financial
- Annual taxes
- $10,484
- Assessment year
- 2026
- HOA fee
- 1365
Listing history
Price and status timeline
- Exp
$859,000 · Jan 28, 2025
- Ter
$889,000 · Jul 23, 2023
Property value estimate
An informed starting point
Automated estimates are not appraisals or guarantees of market value.
Comparable sales
Recent properties for context
Sold Jun 7, 2026$811,000
282 Mount Auburn #282
Sold Jun 17, 2026$820,000
31 Angela Lane #31
Photo insights
Condition signals
Overall presentationabove average
Generated from listing photography; not a substitute for an inspection.
Local market context
How this home compares in Winthrop Highlands
MetricThis propertyWinthrop Highlands
List price$859,900$615,00040% above local
Price / sq ft$514$4807% above local
Days on market423327% above local
Active neighborhood listing statistics from MLS PIN as of September 6, 2026. Asking prices are not completed-sale values.
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Common questions
About 3 Seal Harbor #336
Can I schedule a private showing?
Yes. Request a tour of 3 Seal Harbor #336 and a Bean Group agent will help coordinate an available time with the listing side.
Can you help me evaluate this property?
Yes. We can discuss condition, comparable sales, offer strategy and the questions worth asking before you decide whether to proceed.
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Availability varies by property and source. Request the documents you need and we will help obtain what is available.