Active
3 beds2,136 sqft
21 Keith St, Unit 2, Watertown, MA 02472
Est: $7,061/moGet pre-approved
CondoProperty Type
2026Year Built
$585/sq ftPrice per sq ft
$1/moHOA Fees
3 carsParking Spaces

Description

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...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.

Listing Agent

  1. Nathan Long

    Nathan Long

    Listing Agent

    Coldwell Banker Realty

    P: (617) 864-4430

    M: (617) 821-5889

Days on Market Listed Today
Last updated: 09/17/2026 02:52 PM • Source: MLS PIN, MLS#: 73579006

Open Houses

Saturday, Sep 19th11:00 AM - 12:30 PM

Location

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Payment Calculator

$7,061 per month

30 year fixed, 6.71% Interest

Principal and Interest

$6,454

Property Taxes

$606

HOA Dues

$1

The Payment Calculator is for illustrative purposes only.

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Property Information for 21 Keith Street, Unit 2

Property Details
  • Taxes: $7,268 / year
  • MLS Type: Condominium/Co-Op / Condo
  • Town: Watertown
  • MLS Area: Mount Auburn
  • Area: MA-Watertown-Mount Auburn, MA-Watertown
  • Style: Townhouse
  • Garage Spaces: 0
  • Open Parking Spaces: 3.00
  • Parking Spaces Total: 3
  • Unit Placement: Street
Building Information
  • Building/Complex: 21 Keith St
  • Floor: 1
  • Stories: 3
  • Residences: 2
  • Pet Policy: Allowed
  • Pet Policy Details: Pets Allowed
  • Year Built: 2026
General Details
Property Details
  • Building Area Units: Square Feet
  • Community Features: Public Transportation, Shopping, Swimming Pool, Tennis Court, Park, Walk/Jog Trails, Golf Course, Medical Facility, Bike Path, Highway Access, Private School, Public School, T-Station, University
  • Living Area: 2136.0
  • SqFt with Basement: Yes
  • Total Units: 2
  • Type of Condo: Condo
  • Waterfront: No
  • Water View: No
  • Year Built Details: Actual,Finished, Never Occupied
  • Year Built Source: Owner
Features
Interior Features
  • Appliances: Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
  • Basement Features: Y
  • Num of Baths: 4.0
  • Num of Full Baths: 3
  • Num of Half Baths: 1
  • Bathrooms Total Decimal: 3.50
  • Bathrooms Total Integer: 4
  • FireplaceYN: No
  • Fireplaces: 0
  • Flooring: Vinyl, Hardwood, Flooring - Hardwood
  • Interior Features: Recessed Lighting, Bonus Room
  • Laundry Features: Flooring - Hardwood, Electric Dryer Hookup, Recessed Lighting, Second Floor, In Unit
  • SpaYN: No
Exterior Features
  • Construction: Stone
  • Entry Location: Street
  • Exterior Features: Balcony, Rain Gutters
  • Exterior Features: Balcony
  • Fencing: Security
  • Roof Material: Shingle
  • Structure Type: Townhouse
Parking Features
  • Covered Spaces: .00
  • Garage: No
  • Garage Parking: Off-Street, On Street Permit
  • Open Parking: Yes
  • Parking Features: Off-Street, On Street Permit
  • Parking Features: Off-Street, On Street Permit
Utilities
  • Cooling: Central Air
  • Cooling: Yes
  • Electric: 110 Volts
  • Heating: Central, Forced Air, Electric
  • Heating: Yes
  • Sewer: City/Town Sewer
  • Utility Connections: for Electric Range, for Electric Oven, for Electric Dryer
  • Water: Public
Room Information
Primary Bedroom
  • Room Primary Bedroom Features: Bathroom - Full,Walk-In Closet(s),Flooring - Hardwood,Balcony - Exterior,Recessed Lighting,Slider
  • Primary Bedroom Level: Second Floor
Bedroom 2
  • Bedroom2 Features: Bathroom - Full,Walk-In Closet(s),Flooring - Hardwood,Recessed Lighting
  • Bedroom2 Level: Second
Bedroom 3
  • Bedroom3 Features: Closet,Flooring - Vinyl,Recessed Lighting
  • Bedroom3 Level: Basement
Bathroom 1
  • Bathroom1 Level: First
Dining Room
  • Dining Room Features: Flooring - Hardwood,Recessed Lighting
  • Dining Room Level: First
Family Room
  • Family Room Features: Flooring - Vinyl,Recessed Lighting
  • Family Room Level: Basement
Kitchen
  • Kitchen Features: Flooring - Hardwood,Countertops - Stone/Granite/Solid,Recessed Lighting,Peninsula
  • Kitchen Level: First
Living Room
  • Room Living Room Features: Flooring - Hardwood,Balcony - Exterior,Exterior Access,Open Floorplan,Recessed Lighting,Slider
  • Room Living Room Level: First
Property Information
Property Info
  • Year Round: No
  • Documents Available: Floor Plans
  • Documents Count: 1
  • Farm Land Area Units: Square Feet
  • WARRANTY: No
  • Lot Size Units: Acres
  • Disclosures: Final inspection is done,CO is not issued yet. Condo related docs will be provided after offer is accepted. Buyer and buyer's agent do their own due diligence.
Tax Information
  • Assessments: $534,400
  • Book: 83468
  • Tax Year: 2025
  • Zoning: T
Building / Association Information
Living Characteristics
  • Beds Total: 3
  • Total Living Levels: 3
Other Building Characteristics
  • Accessibility Features: No
  • Cooling Zones: 3
  • Heat Zones: 3
Complex & Association Information
  • Association Fee Frequency: Monthly
  • Association Fee Includes: Insurance
  • Complex Complete: No
  • Management: Owner Association
  • Units Owner Occupied: 2
  • Adult Community: No
Unit Information
Unit Information
  • Unit Building: 2
  • Unit Floor Level Integer: 1.0

Property History for 21 Keith Street, Unit 2

DateEvent & SourcePriceAppreciation
Sep 17, 2026

Listed (Active)

MLS PIN #73579006

$1,249,000
DateEvent & SourcePrice
09/17/2026

Listed (Active)

MLS PIN #73579006

$1,249,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Schools near 21 Keith Street, Unit 2

This home is within Watertown School District.
Rating
School
Type
Grades
Distance
Public - PK to 5
Public - 6 to 8
Public - 9 to 12
Public - PK to 5
Rating
School
Distance
Hosmer Elementary School
PublicPK to 5

Watertown Middle School
Public6 to 8

Watertown High School
Public9 to 12

J.R. Lowell Elementary School
PublicPK to 5

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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21 Keith Street, Unit 2 is a condo for sale in Watertown, MA 02472. This listing's school district is Watertown School District. Nearby schools include Hosmer Elementary School, Watertown Middle School and Watertown High School. 21 Keith Street, Unit 2 is a 3-bed, 4-bath, 2,136 sqft condo built in 2026.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

The property listing data and information, or the images, set forth herein were provided to MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS from third party sources, including sellers, lessors and public records, and were compiled by MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS. The property listing data and information, and the images, are for the personal, non-commercial use of consumers having a good faith interest in purchasing or leasing listed properties of the type displayed to them and may not be used for any purpose other than to identify prospective properties which such consumers may have a good faith interest in purchasing or leasing. MLS Property Information Network, Inc., Martha's Vineyard MLS, CCIMLS, Link MLS, and Berkshire County Board of REALTORS and its subscribers disclaim any and all representations and warranties as to the accuracy of the property listing data and information, or as to the accuracy of any of the images, set forth herein.