For sale

Price cut: $40K (7/22)

$645,000

4 Washington Ave APT 18, Cambridge, MA 02140

1beds

607sqft

$4,669/mo

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Condominium

Built in 1880

-- sqft lot

$632,700 Zestimate^®

$1,063/sqft

$459/mo HOA

What's special

Wood-burning fireplaceContemporary finishesClassic cambridge characterHardwood floorsRenovated kitchenUpdated bathGranite countertops

Perched atop one of Avon Hill's most admired brick courtyard buildings, this sun-filled penthouse corner residence combines classic Cambridge character with thoughtful updates and skyline views. South-facing and filled with natural light, the home features hardwood floors, tall ceilings, oversized windows, and a wood-burning fireplace. The renovated kitchen offers granite countertops, custom cabinetry, under-cabinet lighting, stainless steel appliances, and subway tile backsplash, while the updated bath includes a soaking tub and contemporary finishes. Enjoy sweeping city views from the shared roof deck, plus the convenience of laundry facilities, bike storage, professional management, and heat and hot water included in the condo fee. Recent association improvements include major plumbing infrastructure upgrades serving Unit 18, replacement of the building boiler, and replacement of hot water systems. Ideally located near Harvard & Porter Sq, the Red Line, restaurants, shops, & parks.

94 days
296
23

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 1
Bathrooms: 1
Full bathrooms: 1

Primary bedroom

Level: Fourth Floor

Bathroom 1

Level: Fourth Floor

Kitchen

Level: Fourth Floor

Living room

Level: Fourth Floor

Heating

Baseboard

Cooling

Window Unit(s)

Appliances

Included: Dishwasher, Refrigerator, Range Hood
Laundry: Common Area

Features

Flooring: Wood, Hardwood
Has basement: No
Number of fireplaces: 1
Common walls with other units/homes: No One Above,Corner

Interior area

Total structure area: 607
Total interior livable area: 607 sqft
Finished area above ground: 607

Property

Features

Patio & porch: Deck - Roof
Exterior features: Deck - Roof, City View(s), Professional Landscaping
Has view: Yes
View description: City

Details

Parcel number: M:00211 L:0003304/18,415172
Zoning: C2

Construction

Type & style

Home type: Condo
Property subtype: Condominium

Materials

Brick
Roof: Rubber

Condition

Year built: 1880

Utilities & green energy

Sewer: Public Sewer
Water: Public
Utilities for property: for Gas Range

Community & HOA

Community

Features: Public Transportation, Shopping, Park, Private School, Public School, T-Station, University

HOA

Amenities included: Hot Water, Garden Area
Services included: Heat, Water, Sewer, Insurance, Maintenance Structure, Snow Removal
HOA fee: $459 monthly

Location

Region: Cambridge

Financial & listing details

Price per square foot: $1,063/sqft
Tax assessed value: $616,500
Annual tax amount: $4,125
Date on market: 7/7/2026

Estimated market value

$632,700

$601,000 - $664,000

$2,776/mo

Price history

Date	Event	Price
7/22/2026	Price change	$645,000-5.8%$1,063/sqft
Source: MLS PIN #73534554 Report a problem
6/11/2026	Listed for sale	$685,000+10.5%$1,129/sqft
Source: MLS PIN #73534554 Report a problem
8/23/2025	Listing removed	$3,200$5/sqft
Source: Zillow Rentals Report a problem
7/20/2025	Listed for rent	$3,200+3.2%$5/sqft
Source: Zillow Rentals Report a problem
7/7/2023	Listing removed	--
Source: Zillow Rentals Report a problem
7/6/2023	Price change	$3,100+6.9%$5/sqft
Source: Zillow Rentals Report a problem
7/2/2023	Listed for rent	$2,900+7.4%$5/sqft
Source: Zillow Rentals Report a problem
8/14/2019	Listing removed	$2,700$4/sqft
Source: Coldwell Banker Residential Brokerage - Cambridge Mass Ave #72542781 Report a problem
7/31/2019	Listed for rent	$2,700$4/sqft
Source: Coldwell Banker Residential Brokerage - Cambridge #72542781 Report a problem
7/30/2019	Sold	$620,000-4.6%$1,021/sqft
Source: Public Record Report a problem
7/21/2019	Pending sale	$649,900$1,071/sqft
Source: Conway - West Roxbury #72496487 Report a problem
7/16/2019	Price change	$649,900-3.7%$1,071/sqft
Source: Conway - West Roxbury #72496487 Report a problem
5/8/2019	Listed for sale	$675,000+37.8%$1,112/sqft
Source: Conway - West Roxbury #72496487 Report a problem
12/11/2015	Sold	$490,000+48.5%$807/sqft
Source: Public Record Report a problem
3/1/2010	Sold	$330,000+230%$544/sqft
Source: Public Record Report a problem
3/27/1987	Sold	$100,000$165/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$3,741 +11.5%	$589,200 +4%
2024	$3,354 -2.4%	$566,500 -3.4%
2023	$3,437 -1.4%	$586,500 -0.4%
2022	$3,485 -1.3%	$588,700 -2.5%
2021	$3,531 +1.6%	$603,600 -0.1%
2020	$3,474 +4.4%	$604,100 +7.9%
2019	$3,326 +3%	$560,000 +9.1%
2018	$3,229 +12.1%	$513,400 +15.7%
2017	$2,880 +6.4%	$443,800 +14.6%
2016	$2,708 +1.1%	$387,400 +13.1%
2015	$2,679 +5.4%	$342,600 +13%
2014	$2,542 -3%	$303,300 +0.2%
2013	$2,621 +4.1%	$302,700 +2%
2012	$2,518 +11%	$296,900 +6.8%
2011	$2,269 +5.7%	$278,100
2010	$2,147 +2.1%	$278,100
2009	$2,102 +1.7%	$278,100 -1%
2008	$2,067 -4.5%	$280,800 -3%
2007	$2,165	$289,400