For sale

Price cut: $20K (8/6)

$779,000

139 Prospect St #1, Acton, MA 01720

3beds

2,261sqft

$5,667/mo

Get pre-qualified

Condominium, Townhouse

Built in 2007

-- sqft lot

$771,100 Zestimate^®

$345/sqft

$359/mo HOA

What's special

Sun-filled end-unit townhouseConvenient nearby guest parking

Enjoy a rare walkable lifestyle in the heart of Acton, with convenient access to all three Acton-Boxborough schools, cafés, restaurants, shopping, parks, and everyday amenities, while remaining just minutes from Route 2 and the MBTA Commuter Rail. Beautifully maintained, this sun-filled end-unit townhouse is ideally positioned within the sought-after, peaceful Blanchard Place community, offering added privacy, a more open setting, convenient nearby guest parking, and a private brick patio for outdoor enjoyment. Recent updates include a water heater (2021) and refrigerator (2023), offering added value and peace of mind.

42 days

786

10

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 3
Bathrooms: 3
Full bathrooms: 2
1/2 bathrooms: 1

Primary bedroom

Level: Second
Area: 308
Dimensions: 22 x 14

Bedroom 2

Level: Second
Area: 168
Dimensions: 14 x 12

Bedroom 3

Level: Third
Area: 550
Dimensions: 25 x 22

Bathroom 1

Level: First
Area: 35
Dimensions: 7 x 5

Bathroom 2

Level: Second
Area: 48
Dimensions: 8 x 6

Bathroom 3

Level: Second
Area: 40
Dimensions: 8 x 5

Dining room

Level: First
Area: 200
Dimensions: 20 x 10

Family room

Level: Basement
Area: 144
Dimensions: 12 x 12

Kitchen

Level: First
Area: 156
Dimensions: 13 x 12

Living room

Level: First
Area: 306
Dimensions: 18 x 17

Heating

Forced Air, Natural Gas

Cooling

Central Air

Appliances

Included: Range, Dishwasher, Disposal, Microwave, Refrigerator, Washer, Dryer
Laundry: First Floor, In Unit, Electric Dryer Hookup, Washer Hookup

Features

Mud Room, Central Vacuum
Flooring: Tile, Carpet, Marble, Hardwood
Doors: Insulated Doors
Windows: Insulated Windows
Has basement: Yes
Number of fireplaces: 1

Interior area

Total structure area: 2,261
Total interior livable area: 2,261 sqft
Finished area above ground: 2,261

Property

Parking

Total spaces: 3
Parking features: Attached, Off Street, Assigned, Guest, Paved
Attached garage spaces: 1
Uncovered spaces: 2

Features

Patio & porch: Porch, Enclosed, Patio
Exterior features: Porch, Porch - Enclosed, Patio

Details

Parcel number: M:00F2 B:0129 L:0101,4726340
Zoning: RES

Construction

Type & style

Home type: Townhouse
Property subtype: Condominium, Townhouse

Materials

Frame
Roof: Shingle

Condition

Year built: 2007

Utilities & green energy

Electric: 200+ Amp Service
Sewer: Public Sewer
Water: Public
Utilities for property: for Gas Range, for Gas Oven, for Electric Dryer, Washer Hookup

Green energy

Energy efficient items: Thermostat

Community & HOA

Community

Features: Public Transportation, Shopping, Tennis Court(s), Park, Walk/Jog Trails, Medical Facility, Bike Path, Conservation Area, Highway Access, House of Worship, Public School, T-Station
Security: Security System

HOA

Amenities included: Playground
Services included: Insurance, Maintenance Structure, Maintenance Grounds, Snow Removal
HOA fee: $359 monthly

Location

Region: Acton

Financial & listing details

Price per square foot: $345/sqft
Tax assessed value: $722,900
Annual tax amount: $12,398
Date on market: 7/10/2026

Estimated market value

$771,100

$733,000 - $810,000

$4,265/mo

Price history

Date	Event	Price
8/6/2026	Price change	$779,000-2.5%$345/sqft
Source: MLS PIN #73548116 Report a problem
7/10/2026	Listed for sale	$799,000+44.5%$353/sqft
Source: MLS PIN #73548116 Report a problem
7/24/2024	Listing removed	--
Source: Zillow Rentals Report a problem
7/17/2024	Listed for rent	$3,800$2/sqft
Source: Zillow Rentals Report a problem
5/26/2017	Sold	$553,000-2.8%$245/sqft
Source: Public Record Report a problem
3/28/2017	Pending sale	$569,000$252/sqft
Source: Engel & Volkers Concord #72134315 Report a problem
3/22/2017	Listed for sale	$569,000+14.7%$252/sqft
Source: Engel & Volkers Concord #72134315 Report a problem
10/23/2009	Sold	$496,000$219/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$12,398 +12.2%	$722,900 +9%
2024	$11,052 +6%	$663,000 +11.7%
2023	$10,424 -6.7%	$593,600 +3.3%
2022	$11,176 -1.8%	$574,600 +2.1%
2021	$11,383 +8.4%	$562,700 +3.1%
2020	$10,503 +1.2%	$545,900 +1.9%
2019	$10,378 +5.2%	$535,800 +5.3%
2018	$9,862 +4.8%	$508,900 +3.1%
2017	$9,412 +0.5%	$493,800 +1.4%
2016	$9,369 +4.1%	$487,200 +3.1%
2015	$9,003 -2.7%	$472,600 -0.7%
2014	$9,256 +4.3%	$475,900 +2.5%
2013	$8,872 -0.7%	$464,500 -3.6%
2012	$8,936 +4.3%	$481,700 +1.6%
2011	$8,568 -6.1%	$473,900 -11.1%
2010	$9,125 +4.2%	$533,000 +0.6%
2009	$8,754	$529,600