20 Tierney St, Unit 3

908 Sq. Ft.
$1,011 / Sq. Ft.
908
Sq. Ft.
$1,011
per Sq. Ft.

Description

Perched on the third floor atop Observatory Hill, this bright 2 BD, 1 BA floor-through residence blends comfort and modern convenience in a prime location. Sweeping sunset views over Cambridge and Danehy Park are paired with a private tree-top deck, hardwood floors, efficient AC and in-unit laundry. The open layout flows from a corner living room with bay window and dual exposures into the dining area and expansive kitchen with breakfast bar and stainless appliances. Both of the spacious, south-facing...Perched on the third floor atop Observatory Hill, this bright 2 BD, 1 BA floor-through residence blends comfort and modern convenience in a prime location. Sweeping sunset views over Cambridge and Danehy Park are paired with a private tree-top deck, hardwood floors, efficient AC and in-unit laundry. The open layout flows from a corner living room with bay window and dual exposures into the dining area and expansive kitchen with breakfast bar and stainless appliances. Both of the spacious, south-facing bedrooms are bathed in natural light. Recent updates include 2024 mini-split systems, replacement windows, exterior insulation and refreshed 2026 bathroom. Basement storage and off-street parking add everyday ease. Ideally positioned between Harvard Sq, Porter Sq, Fresh Pond, and Huron Village, just moments from local favorites like Imagine and Formaggio Kitchen. Convenient access to bus lines and Red Line service offers easy connectivity across Cambridge and beyond.

Listing Agents

  1. Currier, Lane & Young

    Currier, Lane & Young

    Listing Agent

    Compass

    P: (617)-871-9190

  2. Nick Schmalensee

    Nick Schmalensee

    Alternative Listing Agent

    Compass

    P: (617)-838-9852

Property Details for 20 Tierney Street, Unit 3

Town
Cambridge
MLS Area
Neighborhood 9
Area
MA-Cambridge
Style
2/3 Family
Garage Spaces
0
Open Parking Spaces
1.00
Parking Spaces Total
1
Unit Placement
Top/Penthouse
LISTING UPDATED: 04/21/2026 12:51 PM

Property Details for 20 Tierney Street, Unit 3

StatusSold
MLS #73485035
Days on Market13
Taxes$1,389 / year
HOA Fees$240 / month
Property TypeCondo
MLS TypeCondominium/Co-Op / Condo
Year Built1885
CountyMiddlesex County

Location

Sold By Compass, Christine Carpenter

Add your commute

Building Information for 20 Tierney Street, Unit 3

Building/Complex20 Tierney Street CondominiumFloor3Stories1Residences3Pet PolicyAllowedPet Policy DetailsPets AllowedYear Built1885

Payment Calculator

$4,930 per month

30 year fixed, 6.36% Interest

Principal and Interest

$4,574

Property Taxes

$116

HOA Dues

$240

The Payment Calculator is for illustrative purposes only.

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Property Information for 20 Tierney Street, Unit 3

General Details
Property Details
  • Building Area Units: Square Feet
  • Community Features: Public Transportation, Shopping, Tennis Court, Park, Walk/Jog Trails, Golf Course, Medical Facility, Bike Path, Highway Access, House of Worship, Private School, Public School, T-Station, University
  • Current Financing: Conv. Fixed
  • Living Area: 908.0
  • SqFt with Basement: No
  • Total Units: 3
  • Type of Condo: Condo
  • Waterfront: No
  • Year Built Details: Approximate
  • Year Converted: 1999
  • Year Built Source: Public Records
Features
Interior Features
  • Appliances: Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
  • Basement Features: Y
  • Common Walls: Top/Penthouse
  • Num of Baths: 1.0
  • Num of Full Baths: 1
  • Num of Half Baths: 0
  • Bathrooms Total Decimal: 1.00
  • Bathrooms Total Integer: 1
  • FireplaceYN: No
  • Fireplaces: 0
  • Flooring: Tile, Hardwood
  • Laundry Features: In Unit, Electric Dryer Hookup, Washer Hookup
  • SpaYN: No
  • Window Features: Insulated Windows
Exterior Features
  • Construction: Frame
  • Exterior Features: Deck
  • Exterior Features: Deck
  • Patio And Porch Features: Deck
  • Roof Material: Rubber
  • Structure Type: 2/3 Family
Parking Features
  • Covered Spaces: .00
  • Garage: No
  • Garage Parking: Off-Street, Improved Driveway
  • Open Parking: Yes
  • Parking Features: Off-Street, Improved Driveway
  • Parking Features: Off-Street, Improved Driveway
Utilities
  • Cooling: Ductless Mini-Split System
  • Cooling: Yes
  • Electric: Circuit Breakers
  • Heating: Forced Air, Natural Gas, Ductless
  • Heating: Yes
  • Sewer: City/Town Sewer
  • Utility Connections: for Gas Range, for Electric Dryer, Washer Hookup
  • Water: Public
Property Information
Property Info
  • Documents Available: Master Deed, Unit Deed, Management Association Bylaws, Floor Plans
  • Documents Count: 4
  • Farm Land Area Units: Square Feet
  • WARRANTY: No
  • Lot Size Units: Acres
  • Disclosures: Taxes reflect a residential exemption. Per condo docs,Unit 3 has access to one off street parking spot from 5/1 to 12/31 (8 months).
Tax Information
  • Tax ID: 416635
  • Assessments: $715,300
  • Book: 82605
  • Tax Year: 2026
  • Zoning: res
Building / Association Information
Living Characteristics
  • Beds Total: 2
  • Total Living Levels: 1
Other Building Characteristics
  • Cooling Zones: 3
  • Heat Zones: 1
Complex & Association Information
  • Association Fee Frequency: Monthly
  • Association Fee Includes: Water, Sewer, Insurance, Maintenance Grounds
  • Complex Name: 20 Tierney Street Condominium
  • Management: Owner Association
  • Adult Community: No
Unit Information
Unit Information
  • Unit Building: 3
  • Unit Floor Level Integer: 3.0

Property History for 20 Tierney Street, Unit 3

DateEvent & SourcePriceAppreciation
Apr 21, 2026

Sold

MLS PIN #73485035

$918,000—
Apr 7, 2026

Sold (Public Record)

Public Record #1937784950

$918,000

+9.1% / yr

Mar 24, 2026

Under Agreement

MLS PIN #73485035

—
DateEvent & SourcePrice
04/21/2026

Sold

MLS PIN #73485035

$918,000
04/07/2026

Sold (Public Record)

Public Record #1937784950

$918,000

+9.1% / yr

03/24/2026

Under Agreement

MLS PIN #73485035

—

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

Public Records for 20 Tierney Street, Unit 3

Taxable ValueLand-Additions$639,800Total-
Tax Record2025$4,063 ($339 / month)
Home Facts
Beds2Baths1Total Finished SqFt908 SqFtAbove Grade Finished SqFt908 SqFtStories1StyleCondominiumYear Built1885ZoningBCountyMIDDLESEXAPNCAMB M:00229 L:0013400003

Schools near 20 Tierney Street, Unit 3

This home is within Cambridge 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
Graham and Parks School
PublicPK to 5

Vassal Lane Upper School
Public6 to 8

Cambridge Rindge and Latin School
Public9 to 12

John M. Tobin Montessori 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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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims 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 discretion of the seller. 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.