Active
80 Days on market
28 S Mill St Hopkinton — Photo 1 of 33

28 S Mill St Hopkinton — Photo 1 of 33

Recent Drop: $100,000

$1,595,000
$1,495,000

$1,495,000

Investment Analysis — 28 S Mill St

Hopkinton, MA 01748

Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 5-bedroom in 01748 carries an estimated $4,260/mo in gross rent — about a 1.73% cap rate and $25,875/yr in estimated NOI at the $1,495,000 list price. Adjust every assumption in the calculator below.

View Standard Listing

Beds

5

Baths

3

SqFt

4,873

Style

Single Family

Built

1950

An exceptional opportunity to own a beautifully sited waterfront property in one of Hopkinton's most desirable neighborhoods. Nestled on a picturesque pond and surrounded by mature landscaping, 28 South Mill Street offers a rare combination of privacy, natural beauty, and convenience. Pride of ownership is evident throughout the property, with extensive renovations and improvements made over the years that have enhanced both its functionality and long-term appeal. The home's striking exterior presence is complemented by outdoor spaces designed to take full advantage of the serene water views. Enjoy morning coffee overlooking the pond, entertain guests outdoors, or simply appreciate the changing seasons from this special setting. Featuring owned solar panels for long-term energy savings and sustainability, the property is also located near top-rated schools, shopping, dining, recreation, and major commuting routes.

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 4,873 sq ft principal dwelling). Lot size: 96,241 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.

Open Houses

Property Details

Financials

Original Price$1,595,000
Annual Taxes$12,976

Parking

Garage3
Off-Street9

Interior Specifications

Total Rooms11
Fireplaces1
FlooringFlooring - Hardwood, Concrete
BasementFull, Sump Pump, Unfinished

Climate & Utilities

HeatingBaseboard, Hot Water, Heat Pump, Oil
CoolingDuctless
WaterPrivate
SewerPrivate Sewer

Building & Exterior

ConstructionFrame
RoofShingle
FoundationConcrete Perimeter
ZoningA

Property & Lot

Acres2.21
SqFt Lot96,241
Lot FeaturesWooded

Amenities & Appliances

Water Heater • Tankless Water Heater

Neighborhood

Park • Walk/Jog Trails

Geography

Floorplan Breakdown

Structural Layout

Second
OfficePrimary BedroomBedroom 2Bedroom 3Bedroom 4Bathroom 2Bathroom 3
First
Bedroom 5
Main,First
Living RoomDining RoomKitchenFamily RoomBathroom 1
Living Room
Lvl Main,First

24 x 13

Flooring - Hardwood

Dining Room
Lvl Main,First

11 x 20

Flooring - Hardwood, Lighting - Overhead

Kitchen
Lvl Main,First

15 x 16

Skylight, Flooring - Hardwood, Countertops - Stone/Granite/Solid, Recessed Lighting

Office
Lvl Second

10 x 12

Flooring - Hardwood

Family Room
Lvl Main,First

14 x 13

Flooring - Hardwood, Recessed Lighting

Primary Bedroom
Lvl Second

27 x 16

Walk-In Closet(s), Flooring - Hardwood, Balcony - Exterior, French Doors, Lighting - Overhead

Bedroom 2
Lvl Second

14 x 11

Bedroom 3
Lvl Second

16 x 16

Flooring - Hardwood, Lighting - Overhead

Bedroom 4
Lvl Second

16 x 13

Flooring - Hardwood, Lighting - Overhead

Bedroom 5
Lvl First

13 x 12

Flooring - Hardwood, Lighting - Overhead

Bathroom 1
Lvl Main,First

8 x 12

Bathroom - Full, Bathroom - Tiled With Shower Stall, Flooring - Stone/Ceramic Tile

Bathroom 2
Lvl Second

19 x 9

Bathroom - Full, Bathroom - Double Vanity/Sink, Bathroom - Tiled With Shower Stall, Bathroom - Tiled With Tub, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Jacuzzi / Whirlpool Soaking Tub, Recessed Lighting, Lighting - Sconce

Bathroom 3
Lvl Second

10 x 5

Bathroom - Full, Bathroom - Tiled With Tub & Shower, Flooring - Stone/Ceramic Tile, Countertops - Stone/Granite/Solid, Recessed Lighting

Property History

Price Drop
$1,495,000

Was $1,595,000

Jul 27, 2026

MLS® 73541688

Listed
$1,595,000

Jun 25, 2026

MLS® 73541688

Listing Provided By

Listing Agent: The Shulkin Wilk Group

Listing Office: Compass

MLS® Number: 73541688