For sale

Price cut: $115K (7/26)

$960,000

18 Prospect St, Watertown, MA 02472

5beds

2,250sqft

$6,488/mo

Get pre-qualified

2 Family - 2 Units Up/Down

Built in 1935

-- sqft lot

$952,700 Zestimate^®

$427/sqft

$-- HOA

What's special

Double-pane windows

Located in highly desirable Warrendale, this spacious two-family home offers an exceptional opportunity for homeowners, developers, and investors seeking to build equity. The first-floor apartment features five rooms with two bedrooms, while the second-floor unit offers six rooms with three bedrooms. Both apartments showcase hardwood floors in the living rooms, dining rooms, and bedrooms, along with classic built-in dining room hutches that add timeless character. Double-pane windows provide improved energy efficiency, and each unit includes both front and rear covered porches, perfect for relaxing or enjoying the outdoors. Ideally situated near Waverley Square, this property offers convenient access to local shops, restaurants, parks, Watertown Center, and Arsenal Yards. Enjoy the nearby Charles River walking, jogging, and bike path. Commuters will enjoy easy access to the Massachusetts Turnpike, multiple public transportation options, and the commuter rail.

67 days
543
25

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 5
Bathrooms: 2
Full bathrooms: 2

Heating

Appliances

Included: Range, Refrigerator
Laundry: Electric Dryer Hookup

Features

Living Room, Dining Room, Kitchen
Flooring: Wood, Vinyl
Basement: Full
Has fireplace: No

Interior area

Total structure area: 2,250
Total interior livable area: 2,250 sqft
Finished area above ground: 2,250

Property

Parking

Total spaces: 6
Parking features: Off Street, Assigned, Paved
Uncovered spaces: 6

Features

Patio & porch: Porch

Lot

Size: 3,600 Square Feet
Features: Level

Details

Parcel number: 849871
Zoning: S-6

Construction

Type & style

Home type: MultiFamily
Property subtype: 2 Family - 2 Units Up/Down

Materials

Frame
Foundation: Block
Roof: Shingle

Condition

Year built: 1935

Utilities & green energy

Sewer: Public Sewer
Water: Public
Utilities for property: for Gas Range, for Electric Dryer

Community & HOA

Community

Features: Public Transportation, T-Station

Location

Region: Watertown

Financial & listing details

Price per square foot: $427/sqft
Tax assessed value: $860,500
Annual tax amount: $10,498
Date on market: 7/22/2026
Total actual rent: 4500
Road surface type: Paved

Estimated market value

$952,700

$905,000 - $1.00M

$3,669/mo

Price history

Date	Event	Price
9/22/2026	Listed for sale	$960,000$427/sqft
Source: MLS PIN #73547064 Report a problem
9/9/2026	Pending sale	$960,000$427/sqft
Source: MLS PIN #73547064 Report a problem
7/26/2026	Price change	$960,000-10.7%$427/sqft
Source: MLS PIN #73547064 Report a problem
7/9/2026	Listed for sale	$1,075,000$478/sqft
Source: MLS PIN #73547064 Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$9,791 +8.5%	$838,300 +8.7%
2024	$9,022 -11%	$771,100 +3.4%
2023	$10,132 +5.1%	$746,100 +2.6%
2022	$9,639 +12%	$727,500 +3.6%
2021	$8,603 +4%	$702,300 +3%
2020	$8,276 +4.7%	$681,700 +11.1%
2019	$7,903 +0.6%	$613,600 +5.2%
2018	$7,853 +6%	$583,000 +9.3%
2017	$7,406 +4.3%	$533,200 +2.8%
2016	$7,099 +7.1%	$518,900 +17.6%
2015	$6,631 +5.6%	$441,200 +5.1%
2014	$6,280 +1.9%	$419,800
2013	$6,163 +6%	$419,800 +4%
2012	$5,815 +7.1%	$403,800 +3.5%
2011	$5,429 -11.3%	$390,000 -15.2%
2010	$6,123 +3.1%	$460,000 -5.2%
2009	$5,941 +3.5%	$485,400 -3.7%
2008	$5,738 -0.8%	$503,800 -9%
2007	$5,786 +10%	$553,700 +17.6%
2006	$5,259 +0.8%	$470,800 -1.6%
2005	$5,219 +11%	$478,400 +5.3%
2004	$4,703 +8.8%	$454,400 +33%
2003	$4,321 +5.6%	$341,600 +4.4%
2002	$4,092 +25.4%	$327,100 +34.2%
2000	$3,264 -2.2%	$243,800 +3.7%
1999	$3,339	$235,000