OFF MARKET

Off Market Jun 2025 for $730K

$988,174

•

2,684

sq ft

9 Flagg Rd, Acton, MA 01720

About this home

First time on the market! This tri-level home is nestled on a quiet cul-de-sac in a desirable Acton location near the Concord line. Set on a rare 1.29-acre wooded lot, it offers privacy and space in a beautiful neighborhood. The fireplaced living room flows into the dining area and spacious kitchen, with access to the deck—perfect for enjoying the natural surroundings. Upstairs are three bedrooms and a full bath. The lower level features a large family room, office, and a fourth bedroom, offering flexible living space. A workshop and ample storage can be found in the basement. The one-car garage adds winter convenience. Priced with updates in mind—bring your vision and make it yours! Close to everything-Concord center, shopping and restaurants, the Bruce Freeman rail trail, Nara Park, and the commuter rail! Showings begin Friday May 16th.

Single-familyProperty Type

1957Year Built

1.29 acresLot Size

$368Est. Price/Sq.Ft.

1 garage spacesParking

Listed by Louise Knight • eXp Realty LLC - Corporate Office

Bought with Shannon Boeckelman • Compass

Redfin checked: 3 minutes ago

•Source:MLS PIN #73373526

Redfin Estimate

$988,174

$258K since sold in June 2025$25K since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 11.8% lower than the average sale price ($1.12M) of 6 comparable homes.

SOLD JUL 2, 2026
$616,000
A
4 beds2 baths2,472 sq ft
11 Brabrook, Acton, MA 01720
SOLD MAY 26, 2026
$1,500,000
B
4 beds2.5 baths2,648 sq ft
265 College Rd, Concord, MA 01742
BOUGHT WITH REDFIN JUN 15, 2026
$780,000
C
4 beds2.5 baths2,456 sq ft
76 Alcott St, Acton, MA 01720
SOLD JUN 16, 2026
$1,040,000
D
4 beds2.5 baths2,143 sq ft
3 Hawthorne St, Acton, MA 01720
SOLD AUG 7, 2026
$1,625,000
E
4 beds2.5 baths3,268 sq ft
18 Isaac Davis Rd, Concord, MA 01742
SOLD JUN 11, 2026
$1,160,000
F
4 beds2.5 baths2,822 sq ft
18 Bromfield Rd, Acton, MA 01720

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Earn from this home

Sell

$366,200

Est. take-home

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Rent

$3,248/mo

Redfin rental estimate

List your home for rent

Market trends in 01720, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

103.4%

+0.6% MoM

Median sale price

$990K

$92K MoM

Avg. days on market

18d

1 days MoM

Recently sold homes

21 MoM

New listings for sale

OPEN SAT, 11AM TO 1PM
$500,000
2 beds1.5 baths1,782 sq ft
1 Meetinghouse Rd #1, Acton, MA 01720
OPEN SAT, 12PM TO 2PM
$324,900
2 beds1 bath832 sq ft
276 Main St Unit 4C, Acton, MA 01720
OPEN SAT, 2PM TO 4PM
$649,000
2 beds2.5 baths2,182 sq ft
18 Hartland Way #18, Acton, MA 01720
EARLY ACCESS
Unknown
4 beds4 baths4,000 sq ft
Acton, MA 01720
OPEN SAT, 11AM TO 1PM
$424,900
2 beds1.5 baths1,655 sq ft
140 Butternut Holw #140, Acton, MA 01718
REDFIN OPEN SAT, 11AM TO 12:30PM
$1,069,000
4 beds2.5 baths3,676 sq ft
705 Main St, Acton, MA 01720
OPEN SAT, 11AM TO 1PM
$999,900
3 beds2.5 baths2,287 sq ft
26 Concord Rd, Acton, MA 01720
3D WALKTHROUGH
$239,000
1 bed1 bath640 sq ft
120 Parker St #24, Acton, MA 01720
See all

Provided by Redfin

Sale history for 9 Flagg Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,760 (+1.1%)

$369,700 + $374,300

$744,000

2024

$12,624 (+6.0%)

$369,700 + $387,600

$757,300

2023

$11,906 (+6.4%)

$336,000 + $342,000

$678,000

2022

$11,186 (+1.0%)

$292,200 + $282,900

$575,100

2021

$11,072 (+5.1%)

$270,300 + $277,000

$547,300

2020

$10,530 (+0.5%)

$270,300 + $277,000

$547,300

2019

$10,477 (+8.7%)

$270,300 + $270,600

$540,900

2018

$9,638 (+2.5%)

$270,300 + $227,000

$497,300

2017

$9,402 (+3.6%)

$270,300 + $223,000

$493,300

2016

$9,071 (+3.8%)

$270,300 + $201,400

$471,700

2015

$8,742 (+1.0%)

$270,300 + $188,600

$458,900

2014

$8,653 (+2.8%)

$270,300 + $174,600

$444,900

2013

$8,421 (−1.0%)

$270,300 + $170,600

$440,900

2012

$8,505 (+2.6%)

$270,300 + $188,200

$458,500

2011

$8,290 (+4.4%)

$270,300 + $188,200

$458,500

2010

$7,944 (+1.8%)

$270,300 + $193,700

$464,000

2009

$7,802

$270,300 + $201,700

$472,000

Tax history for 9 Flagg Rd

Year

Property tax

Land + Additions

Assessment*

2025

$12,760 (+1.1%)

$369,700 + $374,300

$744,000

2024

$12,624 (+6.0%)

$369,700 + $387,600

$757,300

2023

$11,906 (+6.4%)

$336,000 + $342,000

$678,000

2022

$11,186 (+1.0%)

$292,200 + $282,900

$575,100

2021

$11,072 (+5.1%)

$270,300 + $277,000

$547,300

2020

$10,530 (+0.5%)

$270,300 + $277,000

$547,300

2019

$10,477 (+8.7%)

$270,300 + $270,600

$540,900

2018

$9,638 (+2.5%)

$270,300 + $227,000

$497,300

2017

$9,402 (+3.6%)

$270,300 + $223,000

$493,300

2016

$9,071 (+3.8%)

$270,300 + $201,400

$471,700

2015

$8,742 (+1.0%)

$270,300 + $188,600

$458,900

2014

$8,653 (+2.8%)

$270,300 + $174,600

$444,900

2013

$8,421 (−1.0%)

$270,300 + $170,600

$440,900

2012

$8,505 (+2.6%)

$270,300 + $188,200

$458,500

2011

$8,290 (+4.4%)

$270,300 + $188,200

$458,500

2010

$7,944 (+1.8%)

$270,300 + $193,700

$464,000

2009

$7,802

$270,300 + $201,700

$472,000

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Permits

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

1.29 Acres

Year renovated

—

Sq. Ft.

2,684

Year built

1957

Style

Single Family Residential

County

Middlesex County

APN

310726

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 16, 2026.

Mar 22, 2026 • Final

Building permit (residential)

Install a new roof with skylights. Replace existing windows and install new mini split heating and air conditioning units.

HVAC

Roofing

Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.

Property details

Parking

Parking Information
Has Garage
Has Open Parking
# of Garage Spaces: 1
# of Covered Spaces: 1
Parking Spaces: 5
AttachedGarageYN: Yes
Parking Features: Under, Paved Drive, Off Street

Interior

Master Bedroom Information
Area: 159.31
Length: 15.42
Width: 10.33
Level: Second
Features: Flooring - Hardwood

Bedroom #2 Information
Area: 135.14
Length: 11.58
Width: 11.67
Level: Second
Features: Flooring - Hardwood

Bedroom #3 Information
Area: 125.42
Length: 10.75
Width: 11.67
Level: Second
Features: Flooring - Hardwood

Bedroom #4 Information
Area: 105
Length: 11.25
Width: 9.33
Level: Basement
Features: Flooring - Laminate

Bedroom #5 Information
Level: Second

Bathroom Information
# of Bathrooms (Full): 2

Bathroom #1 Information
Area: 66.7
Length: 9.42
Width: 7.08
Level: Second
Features: Flooring - Stone/Ceramic Tile

Bathroom #2 Information
Area: 43.75
Length: 7
Width: 6.25
Level: Basement

Living Room Information
Area: 253.5
Length: 19.5
Width: 13
Level: Main,First
Features: Flooring - Hardwood,Window(s) - Bay/Bow/Box

Family Room Information
Area: 344.5
Length: 26.5
Width: 13
Level: Basement
Features: Flooring - Laminate

Dining Room Information
Area: 121.84
Length: 12.08
Width: 10.08
Level: Main,First
Features: Flooring - Hardwood

Kitchen Information
Area: 305.94
Length: 22.25
Width: 13.75
Level: Main,First
Features: Skylight,Cathedral Ceiling(s),Flooring - Hardwood,Pantry,Countertops - Stone/Granite/Solid,Kitchen Island,Deck - Exterior,Exterior Access,Open Floorplan,Recessed Lighting,Remodeled,Slider,Gas Stove

Office Room Information
Area: 111.9
Length: 10.92
Width: 10.25
Level: Basement
Features: Flooring - Laminate

Basement Information
Basement: Full, Crawl Space, Partially Finished, Walk-Out Access, Interior Entry, Garage Access, Concrete

Laundry Information
Laundry Dimen: 18'10X7'5
Laundry Features: Flooring - Laminate, In Basement

Fireplace Information
Has Fireplace
# of Fireplaces (Total): 1
Fireplace Features: Living Room

Interior Features
# of Rooms (Total): 9
Door Features: Insulated Doors
Window Features: Insulated Windows, Storm Window(s)
Flooring: Wood, Tile, Laminate, Other
Interior Features: Office, High Speed Internet

Exterior

Building Information
Building Area (Total): 2,684
Foundation Details: Concrete Perimeter, Block
Construction Materials: Frame
Year Built Source: Public Records
Year Built Details: Approximate
Color: Gray

Exterior Features
Roof: Shingle
Patio And Porch Features: Deck
Exterior Features: Deck

Property Information
PropertySubType: Single Family Residence
Levels: Multi/Split

Lot Information
Lot Size (Acres): 1.29
Lot Features: Wooded
Road Surface Type: Paved
Road Frontage Type: Public
Road Responsibility: Public Maintained Road

Financial

Tax Information
Tax Annual Amount: $12,624
Tax Year: 2024

Utilities

Utility Information
Sewer: Private Sewer
Water Source: Private
Electric: Circuit Breakers

Heating & Cooling
Has Heating
Heating: Baseboard, Natural Gas

Location

Location Information
Directions: Great Road to Pope, left on Brabrook, right on Flagg. Home is down on the right.
UnparsedAddress: 9 Flagg Road, Acton MA 01720

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Tennis Court(s), Park, Walk/Jog Trails, Stable(s), Medical Facility, Bike Path, Conservation Area, Highway Access, Public School

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 2,684
Stories: 1.0
Lot Size: 1.29 acres
Style: Single Family Residential
Year Built: 1957
Year Renovated: —
County: Middlesex County
APN: 310726

Home facts updated by county records on Jul 16, 2026

Other

Miscellaneous Information
Heat Zones: 2

Listing Information
Exclusions: See Exclusions/Inclusions In Infopak Attached
StandardStatus: Closed

Around this home

Schools

Luther Conant School

Public K-6 • Assigned • 1.5mi

9/10

Raymond J Grey Junior High School

Public 7-8 • Assigned • 2.5mi

10/10

Acton-Boxborough Regional High School

Public 9-12 • Assigned • 2.5mi

9/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

3/10 Fire Factor

0.15% chance of being in a wildfire in next 30 years

4/10 Heat Factor

7 days above 97° expected this year, 14 days in 30 years

6/10 Wind Factor

27% chance of strong winds in next 30 years

2/10 Air Factor

1 unhealthy days expected this year, 1 days in 30 years

Provided by First Street

Historical weather

Acton, MA • 01720

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 9 hours in June and 4.4 hours in December, placing it below the U.S. average for solar exposure.

9 hrs

4.4 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$939,000 – $1.14M

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Home values near 9 Flagg Rd

Data from public records.

Address	Redfin Estimate
10 Flagg Road, Acton, MA 5 Beds \| 3 Baths \| 3316 Sq. Ft.	$1,190,357
8 Flagg Road, Acton, MA 3 Beds \| 2 Baths \| 2030 Sq. Ft.	$822,880

Address	Redfin Estimate
12 Flagg Road, Acton, MA 3 Beds \| 3.5 Baths \| 1365 Sq. Ft.	$797,748
11 Flagg Road, Acton, MA 4 Beds \| 2 Baths \| 1580 Sq. Ft.	$810,243

Address	Redfin Estimate
6 Flagg Road, Acton, MA 3 Beds \| 2.5 Baths \| 1578 Sq. Ft.	$880,078
7 Flagg Road, Acton, MA 4 Beds \| 3.5 Baths \| 2490 Sq. Ft.	$924,874

Property information provided by MLS PIN when last listed in 2025. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 01720, MA

Sale history for 9 Flagg Rd

Tax history for 9 Flagg Rd

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 01720

Home values near 9 Flagg Rd

More real estate resources