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3 Seal Harbor Rd #PH33

Winthrop, MA 02152

Offered at$1,230,000

Residential · Active · MLS #73560746
Listing Courtesy of Charlesgate Realty Group, llc | Cathie Curran

3Bedrooms
3Bathrooms
1,913Square feet
1987Year built

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MLS PIN data

About this home

Experience elevated waterfront living in this stunning 3 bedroom, 3 bath penthouse at the prestigious Seal Harbor III. This exceptional two-level residence features a spacious open-concept floor plan designed to maximize natural light and showcase its spectacular waterfront setting. Entertain effortlessly or simply relax on the massive private deck, offering the perfect space to enjoy ocean breezes and breathtaking views. The kitchen boasts SS appliances, granite counters, Poggenpohl cabinetry and a breakfast bar. Enjoy the beautiful views while cooking. This 2 level unit offers the flexibility of a first floor bedroom and/or office. Nice open staircase. Lovely primary bedroom with en suite. There is a separate jacuzzi room which could become a home office if one chooses to do so. Seal Harbor III offers an unmatched lifestyle with exceptional amenities, including 24/7 concierge, a beautiful fireplaced lobby, an indoor heated pool and hot tub, a recently renovated fitness center, sauna, rooftop deck with panoramic views, outdoor swimming pool, tennis courts and multiple private resident gathering spaces. Additional highlights include a rare heated two-car garage, G9 and G11. Ideally located in the seaside community of Winthrop, you'll enjoy the tranquility of waterfront living while being just minutes from Logan Airport and downtown Boston, providing the perfect balance of coastal charm and city convenience. LUXURY, LOCATION, AND LIFESTYLE come together in this extraordinary waterfront Penthouse.

Property information

Details at a glance

Interior

Rooms
6
Heating
Forced Air, Heat Pump, Electric, Unit Control
Cooling
Central Air, Heat Pump, Unit Control
Flooring
Wood, Tile, Hardwood, Stone / Slate, Flooring - Stone/Ceramic Tile

Building

Style
Condominium
Year built
1987
Garage
2
Parking
2
Roof
Rubber

Land & utilities

Water
Public
Sewer
Public Sewer
Waterfront
Y
Zoning
Res

Financial

Annual taxes
$11,951
Assessment year
2026
HOA fee
1798

Listing history

Price and status timeline

No additional public listing history was supplied for this property.

Property value estimate

An informed starting point

Estimated value$1,253,321

Estimated range $1,193,677$1,312,964

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Automated estimates are not appraisals or guarantees of market value.

Comparable sales

Recent properties for context

Sold Jun 13, 2026$1,185,000

225 Lamartine Street #B

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$1,230,000$615,000100% above local
Price / sq ft$643$48034% above local
Days on market283315% below local
Explore homes in Winthrop

Active neighborhood listing statistics from MLS PIN as of September 6, 2026. Asking prices are not completed-sale values.

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About 3 Seal Harbor Rd #PH33

Can I schedule a private showing?

Yes. Request a tour of 3 Seal Harbor Rd #PH33 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.