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3 Seal Harbor #336 Winthrop — Photo 1 of 42

3 Seal Harbor #336 Winthrop — Photo 1 of 42

$859,900

Investment Analysis — 3 Seal Harbor #336

Winthrop, MA 02152 — Winthrop Highlands

Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 2-bedroom in 02152 carries an estimated $2,620/mo in gross rent — about a -0.35% cap rate and $-2,970/yr in estimated NOI at the $859,900 list price. Adjust every assumption in the calculator below.

View Standard Listing

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.

Estimates — not financial advice

These figures are illustrative estimates for informational purposes only — not an appraisal, valuation, or guarantee of rent, income, or returns, and not financial, tax, or investment advice. Rent is either the figure reported on the MLS listing — in-place rent that may differ from market and is not verified against the actual leases — or, where the listing reports none, an estimate from HUD Small Area Fair Market Rents, a government benchmark that may differ from actual market rent. Each figure is labelled with its source. Cap rate, NOI, and returns depend on the assumptions shown, which you can change. MLS and other third-party data may be inaccurate or out of date. Verify all figures independently and consult your own financial, tax, and legal advisors before making any investment decision.

Property Details

Financials

Original Price$859,900
Annual Taxes$10,484
HOA Fee$1365

Parking

Garage2
Off-Street3

Interior Specifications

Total Rooms5
FireplacesNone
FlooringWood, Tile, Hardwood
BasementY

Climate & Utilities

HeatingHeat Pump, Electric, Individual, Unit Control
CoolingHeat Pump, Individual, Unit Control
WaterPublic
SewerPublic Sewer

Building & Exterior

ConstructionBrick
RoofRubber
Foundation--
Zoningres

Property & Lot

Acres--
SqFt Lot--
Lot Features--

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

Third
Living RoomDining RoomKitchenPrimary BedroomBedroom 2Bathroom 1Bathroom 2
Living Room
Lvl Third
Dining Room
Lvl Third
Kitchen
Lvl Third

Countertops - Stone/Granite/Solid, Kitchen Island, Cabinets - Upgraded, Open Floorplan, Recessed Lighting, Remodeled, Stainless Steel Appliances

Primary Bedroom
Lvl Third

Bathroom - Full, Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Marble, Steam / Sauna

Bedroom 2
Lvl Third
Bathroom 1
Lvl Third

Bathroom - Half

Bathroom 2
Lvl Third

Bathroom - Full, Bathroom - With Tub & Shower, Flooring - Marble, Countertops - Stone/Granite/Solid, Jacuzzi / Whirlpool Soaking Tub, Remodeled

Property History

Listed
$859,900

Jul 23, 2026

MLS® 73554136

Expired
$859,000

Jul 1, 2025

MLS® 73329908

Listed
$859,000

Jan 28, 2025

MLS® 73329908

Terminated
$889,000

Oct 15, 2023

MLS® 73139614

Listed
$889,000

Jul 23, 2023

MLS® 73139614

Listing Provided By

Listing Agent: Cathie Curran

Listing Office: Charlesgate Realty Group, llc

MLS® Number: 73554136