1 Earhart St, Unit 705

1,700 Sq. Ft.
$982 / Sq. Ft.
1,700
Sq. Ft.
$982
per Sq. Ft.

Description

One-of-a-kind bi-level penthouse in the Sierra building at the highly sought-after “Sierra + Tango” complex in Cambridge Crossing. This sun-drenched corner unit boasts southeast-facing, double-height floor-to-ceiling windows with sweeping views. The open-concept layout flows effortlessly through the kitchen, dining, and living areas, creating an ideal space. The main level includes a spacious bedroom with walk-in closet and en-suite bathroom, a large walk-in coat/storage closet, and a convenient...One-of-a-kind bi-level penthouse in the Sierra building at the highly sought-after “Sierra + Tango” complex in Cambridge Crossing. This sun-drenched corner unit boasts southeast-facing, double-height floor-to-ceiling windows with sweeping views. The open-concept layout flows effortlessly through the kitchen, dining, and living areas, creating an ideal space. The main level includes a spacious bedroom with walk-in closet and en-suite bathroom, a large walk-in coat/storage closet, and a convenient half bath for guests. A stunning floating glass staircase leads to a mezzanine-style loft, perfect as an office, lounge, or flex space, complete with its own full bath and walk-in closet. Upstairs, the primary suite features built-in wardrobes, en-suite bathroom, and breathtaking views. This is the only bi-level unit in the building offering 2 bedrooms, 2 full bathrooms, and 2 half baths - truly a rare opportunity. If you're looking to live like royalty, this is your castle in the sky!
  1. Listed by Waypoint Realty Group • Coldwell Banker Realty - Boston
  2. Listed by Drew Boujoulian • Coldwell Banker Realty - Boston
  3. Listed by Jarek Maj • Coldwell Banker Realty - Boston

Property Details for 1 Earhart Street, Unit 705

Town
Cambridge
MLS Area
East Cambridge
Area
MA-Cambridge-East Cambridge, MA-Cambridge
Style
High-Rise, Mid-Rise, Loft, Garden
Garage Spaces
1
Parking Spaces
2.00
Parking Spaces Total
3
Unit Placement
Top/Penthouse, End, Corner
LISTING UPDATED: 01/20/2026 01:37 PM

Property Details for 1 Earhart Street, Unit 705

StatusSold
MLS #73446762
Days on Market56
Taxes$9,799 / year
HOA Fees$1,653 / month
Compass TypeCondo
MLS TypeCondominium/Co-Op / Condo
Year Built2009
CountyMiddlesex County

Location

Listing Courtesy of Coldwell Banker Realty - Boston, Waypoint Realty Group; Coldwell Banker Realty - Boston, Drew Boujoulian; Coldwell Banker Realty - Boston, Jarek Maj

Sold By Redfin Corp., Andrew Junas

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Building Information for 1 Earhart Street, Unit 705

Building/ComplexSierraFloor7Stories-Residences329Pet PolicyAllowedPet Policy DetailsPets AllowedYear Built2009

Payment Calculator

$10,609 per month

30 year fixed, 6.15% Interest

Principal and Interest

$8,139

Property Taxes

$817

HOA Dues

$1,653

The Payment Calculator is for illustrative purposes only.

Property Information for 1 Earhart Street, Unit 705

General Details
Property Details
  • Association Amenities: Hot Water, Elevator(s), Trail(s), Storage
  • Building Area Units: Square Feet
  • Community Features: Public Transportation, Shopping, Park, Walk/Jog Trails, Medical Facility, Laundromat, Bike Path, Conservation Area, Highway Access, House of Worship, Marina, Private School, Public School, T-Station, University, Other (See Remarks)
  • Current Financing: Conv. Fixed
  • Living Area: 1700.0
  • SqFt with Basement: No
  • Total Units: 329
  • Property Attached: Yes
  • Type of Condo: Condo
  • Waterfront: No
  • Water View: No
  • Year Built Details: Approximate
  • Year Built Source: Public Records
Features
Interior Features
  • Appliances: Range, Dishwasher, Disposal, Microwave, Refrigerator, Freezer, Washer, Dryer
  • Basement Features: N
  • Common Walls: Top/Penthouse, End, Corner
  • Num of Baths: 4.0
  • Num of Full Baths: 2
  • Num of Half Baths: 2
  • Bathrooms Total Decimal: 3.00
  • Bathrooms Total Integer: 4
  • FireplaceYN: No
  • Fireplaces: 0
  • Flooring: Tile, Vinyl, Laminate, Wood Laminate, Engineered Hardwood
  • Interior Features: Intercom
  • Laundry Features: In Unit, Electric Dryer Hookup
  • Primary Bath: Yes
  • SpaYN: No
Exterior Features
  • Construction: Frame, Post & Beam
  • Exterior Features: Garden, Professional Landscaping, Sprinkler System, Stone Wall
  • Exterior Features: Garden Area, Professional Landscaping, Sprinkler System, Stone Wall
  • Structure Type: High-Rise, Mid-Rise, Loft
Parking Features
  • Attached Garage: Yes
  • Carport: No
  • Covered Spaces: 1.00
  • Garage: Yes
  • Garage Parking: Attached, Under, Garage Door Opener, Heated, Deeded, Assigned, Common, Off-Street, Guest, Exclusive Parking
  • Parking Features: Attached, Under, Garage Door Opener, Heated, Deeded, Assigned, Common, Off-Street, Guest, Exclusive Parking
  • Parking Features: Heated, Deeded, Assigned, Common, Off-Street, Guest, Exclusive Parking
Utilities
  • Cooling: Central Air, Heat Pump
  • Cooling: Yes
  • Electric: Circuit Breakers, Other (See Remarks)
  • Heating: Central, Heat Pump
  • Heating: Yes
  • Sewer: City/Town Sewer
  • Utility Connections: for Electric Range, for Electric Oven, for Electric Dryer
  • Water: Public
Property Information
Property Info
  • Year Round: Yes
  • Farm Land Area Units: Square Feet
  • WARRANTY: No
  • Lot Size Units: Acres
  • Disclosures: Seller purchased and combined two units,unit 703 and 705 to create this one of a kind Penthouse. See attachments for further detail.
Tax Information
  • Tax ID: 4745489
  • Assessments: $1,543,100
  • Book: 51478
  • Tax Year: 2025
  • Zoning: C-1
Building / Association Information
Living Characteristics
  • Beds Total: 2
  • Total Living Levels: 2
Other Building Characteristics
  • Cooling Zones: 5
  • Heat Zones: 5
Complex & Association Information
  • Association Fee Frequency: Monthly
  • Association Fee Includes: Water, Sewer, Insurance, Security, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Reserve Funds
  • Complex Name: Sierra + Tango Condominiums
  • Management: Professional - On Site
  • Association Security: Intercom, Security Guard, Concierge
  • Adult Community: No
Unit Information
Unit Information
  • Unit Building: 705
  • Unit Floor Level Integer: 7.0

Property History for 1 Earhart Street, Unit 705

DateEvent & SourcePriceAppreciation
Jan 16, 2026

Sold

MLS PIN #73446762

$1,670,000
Dec 2, 2025

Under Agreement

MLS PIN #73446762

Dec 2, 2025

Contingent

MLS PIN #73446762

Oct 22, 2025

Listed (Active)

MLS PIN #73446762

$1,699,000
Jul 24, 2008

Sold (Public Record)

Public Record #246564039

$569,000
DateEvent & SourcePrice
01/16/2026

Sold

MLS PIN #73446762

$1,670,000
12/02/2025

Under Agreement

MLS PIN #73446762

12/02/2025

Contingent

MLS PIN #73446762

10/22/2025

Listed (Active)

MLS PIN #73446762

$1,699,000
07/24/2008

Sold (Public Record)

Public Record #246564039

$569,000

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

Public Records for 1 Earhart Street, Unit 705

Taxable ValueLand-Additions$1,543,100Total-
Tax Record2025$9,799 ($817 / month)
Home Facts
Beds2Baths3Total Finished SqFt1,700 SqFtAbove Grade Finished SqFt1,700 SqFtStories2StyleCondominiumYear Built2006CountyMIDDLESEXAPNCAMB M:0001A L:0017100705

Schools near 1 Earhart Street, Unit 705

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
Kennedy-Longfellow School
PublicPK to 5

Cambridge Street Upper School
Public6 to 8

Cambridge Rindge and Latin School
Public9 to 12

Fletcher/Maynard Academy
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.

Listing Courtesy of Coldwell Banker Realty - Boston, Waypoint Realty Group; Coldwell Banker Realty - Boston, Drew Boujoulian; Coldwell Banker Realty - Boston, Jarek Maj

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.