Active
87 Days on market
644 Washington St Duxbury — Photo 1 of 42

644 Washington St Duxbury — Photo 1 of 42

Recent Drop: $500,000

$3,800,000
$3,300,000

$3,300,000

Investment Analysis — 644 Washington St

Duxbury, MA 02332

Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 3-bedroom in 02332 carries an estimated $3,140/mo in gross rent — about a 0.16% cap rate and $5,130/yr in estimated NOI at the $3,300,000 list price. Adjust every assumption in the calculator below.

View Standard Listing

Beds

3

Baths

3.5

SqFt

2,567

Style

Single Family

Built

2008

A rare waterfront landmark offering the quintessential Duxbury lifestyle. Set on a protected harbor with direct access to Duxbury Bay, this exceptional property invites you to swim from your private dock, launch a kayak or paddleboard, and enjoy breathtaking sunsets from the expansive waterside deck designed for effortless entertaining. Inside, custom wood craftsmanship reminiscent of a classic Herreshoff yacht creates a warm coastal ambiance. The open-concept floor plan features waterviews, a custom wet bar, and seamless indoor-outdoor living. Multiple bedroom suites include a charming guest suite with a sleeping loft, while the primary retreat offers a walk-in closet, office area, and full bath. A 29-foot suite above the attached two-car garage features private access, vaulted ceilings, and a kitchenette—ideal for guests, extended family, or a home office. Moments from Snug Harbor, Duxbury Harbor, beaches, and marinas, this is coastal living at its finest.

ADU Potential

Massachusetts allows one accessory dwelling unit by right in single-family zoning districts statewide (M.G.L. c. 40A §3; 760 CMR 71.00, effective Feb 2025). Estimated maximum ADU size for this property: 900 sq ft (the lesser of 900 sq ft or half the 2,567 sq ft principal dwelling). Lot size: 14,985 sq ft.

Based on listing data, which indicates the property type — not the zoning district. Local dimensional, septic (Title 5), and historic-district requirements still apply. Not legal advice — verify with the municipality.

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$3,800,000
Annual Taxes$23,507

Parking

Garage2
Off-Street8

Interior Specifications

Total Rooms7
Fireplaces2
FlooringWood, Tile, Carpet, Flooring - Wall to Wall Carpet, Flooring - Hardwood, Flooring - Wood, Flooring - Stone/Ceramic Tile
BasementPartial, Bulkhead, Unfinished

Climate & Utilities

HeatingForced Air, Natural Gas
CoolingCentral Air, Ductless
WaterPublic
SewerPrivate Sewer

Building & Exterior

ConstructionFrame
RoofWood
FoundationConcrete Perimeter
ZoningRC

Property & Lot

Acres0.34
SqFt Lot14,985
Lot FeaturesCorner Lot, Level

Amenities & Appliances

Range • Dishwasher • Microwave • Refrigerator • Washer • Dryer

Neighborhood

Public Transportation • Shopping • Pool • Tennis Court(s) • Walk/Jog Trails • Golf

Geography

Floorplan Breakdown

Structural Layout

Second
Master BedroomBedroom 2Bedroom 3Bathroom 2Bathroom 3
Main,First
Living RoomDining RoomKitchenBathroom 1
Living Room
Lvl Main,First

19 x 14

Coffered Ceiling(s), Closet/Cabinets - Custom Built, Flooring - Wood, Window(s) - Bay/Bow/Box, Cable Hookup, Deck - Exterior, Recessed Lighting, Remodeled

Dining Room
Lvl Main,First

19 x 12

Bathroom - Half, Beamed Ceilings, Coffered Ceiling(s), Closet/Cabinets - Custom Built, Flooring - Wood, Window(s) - Bay/Bow/Box, French Doors, Wet Bar, Open Floorplan, Lighting - Sconce, Beadboard

Kitchen
Lvl Main,First

12 x 8

Coffered Ceiling(s), Closet/Cabinets - Custom Built, Flooring - Hardwood, Window(s) - Bay/Bow/Box, Dining Area, Pantry, Countertops - Stone/Granite/Solid, French Doors, Kitchen Island, Deck - Exterior, Exterior Access, Recessed Lighting, Remodeled, Beadboard

Master Bedroom
Lvl Second

17 x 13

Bathroom - Full, Bathroom - Double Vanity/Sink, Cathedral Ceiling(s), Walk-In Closet(s), Closet/Cabinets - Custom Built, Flooring - Wall to Wall Carpet, Window(s) - Bay/Bow/Box, Cable Hookup, Recessed Lighting, Remodeled, Beadboard

Bedroom 2
Lvl Second

19 x 9

Bedroom 3
Lvl Second

29 x 23

Bathroom - Full, Vaulted Ceiling(s), Flooring - Wall to Wall Carpet, Window(s) - Bay/Bow/Box, Exterior Access, Remodeled

Bathroom 1
Lvl Main,First

5 x 3

Bathroom - Half, Closet/Cabinets - Custom Built, Flooring - Hardwood, Window(s) - Bay/Bow/Box, Remodeled

Bathroom 2
Lvl Second

8 x 6

Bathroom - 3/4, Bathroom - Tiled With Shower Stall, Closet - Linen, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Remodeled

Bathroom 3
Lvl Second

Bathroom - 3/4, Bathroom - Double Vanity/Sink, Bathroom - Tiled With Shower Stall, Closet/Cabinets - Custom Built, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid

Property History

Price Drop
$3,300,000

Was $3,645,000

Sep 11, 2026

MLS® 73537735

Listed
$8,000

Aug 12, 2026

MLS® 73562654

Price Drop
$3,645,000

Was $3,800,000

Aug 6, 2026

MLS® 73537735

Listed
$3,800,000

Jun 17, 2026

MLS® 73537735

Listing Provided By

Listing Agent: Liz Bone Team

Listing Office: South Shore Sotheby's International Realty

MLS® Number: 73537735