Condominium at 21 Keith St # 2, Watertown MA 02472, Watertown
Condominium at 21 Keith St # 2, Watertown MA 02472, Watertown, photo 2 of 24
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$1,249,000

21 Keith St # 2, Watertown MA 02472
Watertown, MA 02472
Listed by Nathan Long
Bedrooms
3
Bathrooms
3.5
Living area
2,136 sqft
Year built
2026

About this home

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.

Property details

MLS #
73579006
Property type
Condominium
Subdivision
N/A
Status
Active
Days on market
7
On market date
September 17, 2026
Stories
3
Total bathrooms
3.5
Garage spaces
N/A
Parking spaces
3
Lot size
0.14 acres
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Nearby schools

Within 10 miles · public school directory data (NCES)

Elementary
Haggerty
0.33 mi away · Grades -1-5
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
236
Student:teacher ratio
8.4:1
District
Cambridge
Middle
Winthrop L Chenery Middle
1.04 mi away · Grades 5-8
Nearest school -- attendance-zone data not available here
3.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
1,362
Student:teacher ratio
15.8:1
District
Belmont
High
Watertown High
1.13 mi away · Grades 9-12
Nearest school -- attendance-zone data not available here
5.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
705
Student:teacher ratio
9.5:1
District
Watertown

Walkability

Blended score for Watertown's center: EPA's National Walkability Index (street network, transit, land-use mix) combined with nearby-amenity density. 60% EPA National Walkability Index + 40% nearby-amenity density (Google Places).

87
Highly walkable
out of 100
EPA National Walkability Index
15.7 / 20 -- Most walkable
Nearby-amenity density
100 / 100
Restaurants & cafes20
Grocery stores10
Parks20
Schools20
Transit stops20
Pharmacies6

Market position

How this listing compares to current activity in Watertown, from live MLS data.

On the market 7 days -- 68 fewer days than Watertown's current average of 75 days.
For reference, the median list price across 313 active listings in Watertown right now is $4,800.

Mortgage calculator

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Est. monthly payment
$7,672/mo
$249,800 down
$999,200 loan
Principal & interest$6,481
Property tax (est.)$1,041
Home insurance (est.)$150

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Data source: Listing information provided by MLS Property Information Network via Trestle/CoreLogic. Last updated 4 days ago.

Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.