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12 Watertown St Lexington — Photo 1 of 42

12 Watertown St Lexington — Photo 1 of 42

$998,000

Investment Analysis — 12 Watertown St

Lexington, MA 02421

Based on HUD Small Area Fair Market Rent for Boston-Cambridge-Quincy, MA-NH HUD Metro FMR Area, a 3-bedroom in 02421 carries an estimated $5,040/mo in gross rent — about a 3.43% cap rate and $34,246/yr in estimated NOI at the $998,000 list price. Adjust every assumption in the calculator below.

View Standard Listing

Beds

3

Baths

2

SqFt

2,016

Style

Single Family

Built

1945

A wonderful opportunity for single-level living in a convenient Lexington location! This ranch-style home offers comfortable one-floor living, with generously sized bedrooms, including a spacious primary bedroom with en-suite bath. Abundant storage and a completely dry basement provide extra space for storage or future use. A gas line is connected to the house, offering added convenience and flexibility. The level backyard and enclosed porch create a wonderful setting for cooking, entertaining, family gatherings, and outdoor enjoyment. The home is within walking distance of Wilson Farm and directly across from the Bowman Park trail, with nearby bus service and everyday amenities adding to the convenience. A semi-circular driveway provides ample off-street parking, complemented by a one-car garage. For buyers with vision, the property offers potential for an in-law suite or accessory dwelling unit, as well as the possibility of adding a second floor. Create a home that truly reflects your style and needs.

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 2,016 sq ft principal dwelling). Lot size: 12,530 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$998,000
Annual Taxes$11,719

Parking

Garage1
Off-Street6

Interior Specifications

Total Rooms5
Fireplaces1
FlooringHardwood
BasementFull, Partially Finished, Concrete

Climate & Utilities

HeatingSteam, Oil
CoolingWall Unit(s)
WaterPublic
SewerPublic Sewer

Building & Exterior

ConstructionFrame
RoofShingle
FoundationConcrete Perimeter
ZoningRS

Property & Lot

Acres0.29
SqFt Lot12,530
Lot FeaturesWooded, Gentle Sloping

Amenities & Appliances

Tankless Water Heater • Range • Dishwasher • Disposal • Refrigerator • Washer • Dryer

Neighborhood

Public Transportation • Shopping • Park • Walk/Jog Trails

Geography

Floorplan Breakdown

Structural Layout

First
Living RoomDining RoomKitchenPrimary BedroomBedroom 2Bedroom 3Bathroom 1Bathroom 2
Basement
Family Room
Living Room
Lvl First

27 x 11

Wood / Coal / Pellet Stove, Flooring - Hardwood, Window(s) - Picture, Recessed Lighting

Dining Room
Lvl First

12 x 12

Flooring - Hardwood

Kitchen
Lvl First

13 x 11

Ceiling Fan(s), Flooring - Stone/Ceramic Tile, Exterior Access, Recessed Lighting

Family Room
Lvl Basement

29 x 11

Wet Bar, Recessed Lighting

Primary Bedroom
Lvl First

14 x 11

Bathroom - Full, Walk-In Closet(s), Flooring - Hardwood

Bedroom 2
Lvl First

15 x 11

Bedroom 3
Lvl First

12 x 11

Closet, Flooring - Hardwood, Window(s) - Picture

Bathroom 1
Lvl First

Bathroom - Full, Bathroom - Tiled With Tub, Flooring - Stone/Ceramic Tile, Window(s) - Picture

Bathroom 2
Lvl First

Bathroom - Full, Bathroom - Tiled With Shower Stall, Flooring - Stone/Ceramic Tile, Window(s) - Picture

Property History

Listed
$998,000

Sep 16, 2026

MLS® 73578315

Expired
$439,000

Dec 31, 2010

MLS® 71134240

Listed
$439,000

Sep 9, 2010

MLS® 71134240

Listing Provided By

Listing Agent: Alina Wang Team

Listing Office: Coldwell Banker Realty - Lexington

MLS® Number: 73578315