Seal Harbor in Winthrop offers an elevated coastal living experience that is unparalleled. Timeless detail inside & out of this building is complemented by white-glove concierge service. Unit 342 is a luxury residence with ocean & pool views from every window. It is conveniently located a few steps from the new elevators & welcomes you into an open floor plan with striking natural sunlight; hardwood floors & a modern kitchen with island dining. Unit offers 2 spacious bedrooms with marble en-suite baths & walk-in closets. A private oversized balcony is the crown jewel with magnificent views. Conveniences include garage parking, extra storage ideal for seasonal items, in-unit laundry & central A/C. Residents enjoy premium amenities such as game room, club room with full kitchen, hobby room & multiple meeting rooms. Building also showcases a fitness center, sauna, hot tub, indoor pool & roof deck with Boston skyline & ocean views. Seal Harbor is a hidden gem on the Boston City line.
View in the App
Save this property, schedule tours instantly, and get alerts when the price drops
Scan with phone
Log in to view assessor & tax records, ownership history, and recent building permits for this property.
Get the number an algorithm can't give you
A free agent CMA factors in condition, upgrades, and the street — the things comps alone can't see.
| Date | Event | Price | Change | $/sqft | Details |
|---|---|---|---|---|---|
| 05/13/2026 | ↓ Price Reduced | $649,000 | $30,000 | - | From $679,000 to $649,000 (-4.4%) |
| 04/29/2026 | • Back On Market | - | - | - | Active |
| 04/28/2026 | 📋 Status: Active under contract | - | - | - | Active → Active Under Contract |
| 04/23/2026 | 🏠 Listed for Sale | $679,000 | - | - | Original listing |
| Year | Taxes | Assessment |
|---|---|---|
| 2025 | $6,103 | $591,400 |
3 Seal Harbor Road # 342, Winthrop MA 02152
Winthrop, MA 02152
Finding comparable properties...