3 Seal Harbor #336 Winthrop — Photo 1 of 42
$859,900
3 Seal Harbor #336, Winthrop, MA 02152
Winthrop, MA 02152 — Winthrop Highlands
Beds
2
Baths
1.5
SqFt
1,674
Style
Condominium
Built
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 2 spots tandem(D41T), outdoor/guest parking, heated indoor pool/hot tub, outdoor pool, storage closet, clubhouse, tennis courts and so much more.
Key facts
It was listed on July 23, 2026. The annual property taxes are $10,484 (2026 tax year). The condo fee is $1,365 per month, which includes water.
Market Value Analysis
* Analysis is based on 24 actively listed and recently sold comparable properties strictly within Winthrop, MA.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Range • Dishwasher • Disposal • Microwave • Refrigerator • Washer • Dryer
Neighborhood
Public Transportation • Shopping • Pool • Tennis Court(s) • Park • Walk/Jog Trails
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl ThirdDining Room
Lvl ThirdKitchen
Lvl ThirdCountertops - Stone/Granite/Solid, Kitchen Island, Cabinets - Upgraded, Open Floorplan, Recessed Lighting, Remodeled, Stainless Steel Appliances
Primary Bedroom
Lvl ThirdBathroom - Full, Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Marble, Steam / Sauna
Bedroom 2
Lvl ThirdBathroom 1
Lvl ThirdBathroom - Half
Bathroom 2
Lvl ThirdBathroom - Full, Bathroom - With Tub & Shower, Flooring - Marble, Countertops - Stone/Granite/Solid, Jacuzzi / Whirlpool Soaking Tub, Remodeled
Property History
$859,900
Jul 23, 2026
MLS® 73554136
$859,000
Jul 1, 2025
MLS® 73329908
$859,000
Jan 28, 2025
MLS® 73329908
$889,000
Oct 15, 2023
MLS® 73139614
$889,000
Jul 23, 2023
MLS® 73139614
Questions about this home
When was 3 Seal Harbor #336, Winthrop listed?
3 Seal Harbor #336, Winthrop was listed on July 23, 2026.
Has the price of 3 Seal Harbor #336, Winthrop changed?
The price hasn't changed since it was listed at $859,900.
What are the property taxes for 3 Seal Harbor #336, Winthrop?
The annual property taxes for 3 Seal Harbor #336, Winthrop are $10,484 (2026 tax year).
What is the condo fee at 3 Seal Harbor #336, Winthrop?
The condo fee is $1,365 per month, which includes water.
What is the status of 3 Seal Harbor #336, Winthrop?
3 Seal Harbor #336, Winthrop is actively listed for sale.
Population
18,759
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)
Median Household Income
$116K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)
Renter-Occupied Homes
43.1%
U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)
New Construction Permits — Suffolk County
2,337 housing units permitted in the last 12 months (+13% vs the prior 12 months) — 2,062 in 5+ unit buildings
U.S. Census Bureau, Building Permits Survey (through Jul '26)
Listing Agent: Cathie Curran
Listing Office: Charlesgate Realty Group, llc
MLS® Number: 73554136
