
21 Keith St #2 Watertown — Photo 1 of 19
Beds
3
Baths
3.5
SqFt
2,136
Style
Condominium
Built
2026
Experience modern living in this newly constructed townhouse located in the highly sought-after Mount Auburn/East Watertown neighborhood, just steps from the Cambridge line. Enjoy easy access to Harvard Sq., Arsenal Yards, &public transportation, w #73 bus to Harvard Sq. only moments away. Nestled on a quiet residential street, this three-level home offers a bright, open, & thoughtfully designed floor plan. The main level features a spacious open-concept kitchen, dining, and living area. The living room opens directly to a rear porch and private backyard. The upper level includes two luxurious primary suites, each w walk-in closets. The rear suite boasts a private balcony overlooking the backyard. A versatile bonus room & convenient laundry room complete this floor. The lower level provides additional living space with a generously sized bedroom, a full bathroom featuring vanities, and a comfortable family room.
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Market Value Analysis
* Analysis is based on 24 actively listed and recently sold comparable properties strictly within Watertown, MA.
Property Details
Financials
Parking
Interior Specifications
Climate & Utilities
Building & Exterior
Property & Lot
Amenities & Appliances
Dishwasher • Disposal • Microwave • Refrigerator • Freezer • Washer • Dryer
Neighborhood
Public Transportation • Shopping • Pool • Tennis Court(s) • Park • Walk/Jog Trails
Geography
Floorplan Breakdown
Structural Layout
Living Room
Lvl FirstFlooring - Hardwood, Balcony - Exterior, Exterior Access, Open Floorplan, Recessed Lighting, Slider
Dining Room
Lvl FirstFlooring - Hardwood, Recessed Lighting
Kitchen
Lvl FirstFlooring - Hardwood, Countertops - Stone/Granite/Solid, Recessed Lighting, Peninsula
Family Room
Lvl BasementFlooring - Vinyl, Recessed Lighting
Primary Bedroom
Lvl SecondBathroom - Full, Walk-In Closet(s), Flooring - Hardwood, Balcony - Exterior, Recessed Lighting, Slider
Bedroom 2
Lvl SecondBedroom 3
Lvl BasementCloset, Flooring - Vinyl, Recessed Lighting
Bathroom 1
Lvl FirstPopulation
35,620
U.S. Census Bureau, ACS 2024 5-Year Estimates (B01003)
Median Household Income
$126K
U.S. Census Bureau, ACS 2024 5-Year Estimates (B19013)
Renter-Occupied Homes
52.3%
U.S. Census Bureau, ACS 2024 5-Year Estimates (B25003)
New Construction Permits — Middlesex County
2,698 housing units permitted in the last 12 months (+3% vs the prior 12 months) — 1,713 in 5+ unit buildings
U.S. Census Bureau, Building Permits Survey (through Jul '26)
Listing Agent: Nathan Long
Listing Office: Coldwell Banker Realty - Cambridge
MLS® Number: 73579006
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