Google satellite image for 100 Keyes Rd #233, Concord, MA 01742

Off market sep 1987 for $212K

$617,826

Est. refi paymentEst. refi $1,419/mo

•

1 ba

•

1,066

sq ft

100 Keyes Rd #233, Concord, MA 01742

About this home

100 Keyes Rd #233 is a 1,066 square foot condo with 1 bedroom and 1 bathroom. - it last sold on September 04, 1987 for $212,500. Based on Redfin's Concord data, we estimate the home's value is $617,826.

CondoProperty Type

1952Year Built

$580Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$617,826

$405K since sold in September 1987$26K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 105.2% higher than the average sale price ($301K) of 6 comparable homes.

SOLD AUG 25, 2026
$265,000
A
1 bed1 bath701 sq ft
10 Wampus Ave #34, Acton, MA 01720
SOLD SEP 25, 2026
$235,000
B
2 beds1 bath920 sq ft
380 Great Rd Unit B 302, Acton, MA 01720
SOLD JUL 17, 2026
$218,500
C
1 bed1 bath652 sq ft
205 Great Rd Unit C-6, Acton, MA 01720
SOLD FEB 13, 2026
$518,000
D
1 bed1 bath976 sq ft
22 Concord Greene #2, Concord, MA 01742
BOUGHT WITH REDFIN JUL 31, 2026
$220,000
E
1 bed1 bath770 sq ft
380 Great Rd Unit B 303, Acton, MA 01720
SOLD JUL 31, 2026
$350,000
F
2 beds1 bath868 sq ft
15 Davis Rd Unit B1, Acton, MA 01720

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Earn from this home

Sell

$586,207

Est. take-home

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Est. cash available

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Rent

$1,777/mo

Redfin rental estimate

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Market trends in 01742, MA

Last updated September 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

98.3%

1.2% MoM

Median sale price

$1.7M

$12K MoM

Avg. days on market

36d

7 days MoM

Recently sold homes

3 MoM

New listings for sale

OPEN TODAY, 11:30AM TO 1:30PM
$995,000
2 beds2 baths1,268 sq ft
100 Keyes Rd #324, Concord, MA 01742
EARLY ACCESS
$1,450,000
3 beds3 baths2,211 sq ft
Concord, MA 01742
OPEN TODAY, 12PM TO 1:30PM
$1,799,000
4 beds2.5 baths4,010 sq ft
90 Deacon Haynes Rd, Concord, MA 01742
OPEN TODAY, 12:30PM TO 1:30PM
$899,000
2 beds1.5 baths1,295 sq ft
118 Bedford St, Concord, MA 01742
OPEN TODAY, 1:30PM TO 3PM
$1,595,000
3 beds3.5 baths3,511 sq ft
39 Rollingwood Ln, Concord, MA 01742
$1,598,000
4 beds2.5 baths3,440 sq ft
50 Bridgecourt Ln, Concord, MA 01742
OPEN SUN, 11AM TO 12PM
$1,585,000
3 beds3 baths3,161 sq ft
27 Lang St #27, Concord, MA 01742
OPEN SUN, 12:30PM TO 1:30PM
$1,149,000
3 beds2.5 baths1,877 sq ft
22 Belknap Ct, Concord, MA 01742
OPEN SUN, 2PM TO 3PM
$2,488,000
4 beds4.5 baths4,188 sq ft
54 Maple St, Concord, MA 01742
OPEN SUN, 1PM TO 2:30PM
$2,099,000
4 beds3.5 baths4,071 sq ft
1444 Main St, Concord, MA 01742
See all

Provided by Redfin

Sale history for 100 Keyes Rd #233

Year

Property tax

Land + Additions

Assessment*

2026

$9,323 (+11.7%)

$714,400

2025

$8,348 (−7.6%)

$629,600

2024

$9,030 (+22.4%)

$687,700

2023

$7,377 (−6.2%)

$569,200

2022

$7,864 (+15.3%)

$532,800

2021

$6,818 (+6.3%)

$463,200

2020

$6,413 (+1.2%)

$450,700

2019

$6,334 (−1.9%)

$446,400

2018

$6,458 (+1.6%)

$451,900

2017

$6,358 (+20.0%)

$451,900

2016

$5,297 (+4.1%)

$380,500

2015

$5,087 (−4.5%)

$356,000

2014

$5,325 (−1.0%)

$368,500

2013

$5,379 (+4.8%)

$382,300

2012

$5,135 (+1.6%)

$378,100

2011

$5,053 (+4.6%)

$385,700

2010

$4,832 (−0.7%)

$369,100

2009

$4,864

$408,700

Tax history for 100 Keyes Rd #233

Year

Property tax

Land + Additions

Assessment*

2026

$9,323 (+11.7%)

$714,400

2025

$8,348 (−7.6%)

$629,600

2024

$9,030 (+22.4%)

$687,700

2023

$7,377 (−6.2%)

$569,200

2022

$7,864 (+15.3%)

$532,800

2021

$6,818 (+6.3%)

$463,200

2020

$6,413 (+1.2%)

$450,700

2019

$6,334 (−1.9%)

$446,400

2018

$6,458 (+1.6%)

$451,900

2017

$6,358 (+20.0%)

$451,900

2016

$5,297 (+4.1%)

$380,500

2015

$5,087 (−4.5%)

$356,000

2014

$5,325 (−1.0%)

$368,500

2013

$5,379 (+4.8%)

$382,300

2012

$5,135 (+1.6%)

$378,100

2011

$5,053 (+4.6%)

$385,700

2010

$4,832 (−0.7%)

$369,100

2009

$4,864

$408,700

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

Property details

Interior

Bathroom Information
# of Full Baths: 1

Heating & Cooling
Heating Type: Forced Air

Room Information
# of Rooms: 4

Exterior

Exterior Information
Physical Condition: Average
Exterior Wall: Brick
Roof Shape Type: Flat

Property Information
Subdivision Name: MILDAM SQUARE
Living Sq. Ft: 1,066
Gross Sq. Ft: 1,186
# of Stories: 1

Parking & Garage Information
Parking Type: Basement Garage
Garage / Carport Type: Basement

Lot Information
# of Buildings: 1
Land Sq. Ft: 194,925
Municipality Name: CONCORD
Acres: 4.4749
Zoning Code: B
State Use Description: CONDOMINIUM

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 1
Baths: 1.0
Sq. Ft.: 1,066
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1952
Year Renovated: 1955
County: Middlesex County
APN: 2675644S

Home facts updated by county records on Sep 10, 2026

About this building

1 for sale

100 Keyes Rd, Concord, MA 01742

See photos & sale trends

Photo via 100 Keyes Rd #307

Units for sale


324	$995,000	2 beds	2 baths	1268 sq ft

Around this home

Schools

Alcott Elementary School

Public PreK-5 • Assigned • 0.7mi

9/10

Concord Middle School

Public 6-8 • Assigned • 2.6mi

8/10

Concord Carlisle High School

Public 9-12 • Assigned • 1.0mi

10/10

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

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

5/10 Heat Factor

7 days above 97° expected this year, 15 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

Concord, MA • 01742

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

$587,000 – $711,000

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New listings for sale in 01742

OPEN TODAY, 11:30AM TO 1:30PM

$995,000

2 beds2 baths1,268 sq ft

100 Keyes Rd #324, Concord, MA 01742

EARLY ACCESSCOMPASS COMING SOON

$1,450,000

3 beds3 baths2,211 sq ft

Concord, MA 01742

OPEN TODAY, 12PM TO 1:30PM

$1,799,000

4 beds2.5 baths4,010 sq ft

90 Deacon Haynes Rd, Concord, MA 01742

OPEN TODAY, 12:30PM TO 1:30PM3D WALKTHROUGH

$899,000

2 beds1.5 baths1,295 sq ft

118 Bedford St, Concord, MA 01742

OPEN TODAY, 1:30PM TO 3PM

$1,595,000

3 beds3.5 baths3,511 sq ft

39 Rollingwood Ln, Concord, MA 01742

$1,598,000

4 beds2.5 baths3,440 sq ft

50 Bridgecourt Ln, Concord, MA 01742

OPEN SUN, 11AM TO 12PM

$1,585,000

3 beds3 baths3,161 sq ft

27 Lang St #27, Concord, MA 01742

OPEN SUN, 12:30PM TO 1:30PM

$1,149,000

3 beds2.5 baths1,877 sq ft

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OPEN SUN, 2PM TO 3PM

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Home values near 100 Keyes Rd #233

Data from public records.

Address	Redfin Estimate
100 Keyes Road #232, Concord, MA 2 Beds \| 1.5 Baths \| 1286 Sq. Ft.	$675,299
100 Keyes Road #109, Concord, MA 3 Beds \| 2 Baths \| 1581 Sq. Ft.	$1,010,744

Address	Redfin Estimate
100 Keyes Road #104, Concord, MA 4 Beds \| 2 Baths \| 2065 Sq. Ft.	$1,032,943
100 Keyes Road #207, Concord, MA 1 Beds \| 1 Baths \| 962 Sq. Ft.	$583,095

Address	Redfin Estimate
100 Keyes Road #104, Concord, MA 2 Beds \| 2 Baths \| 1306 Sq. Ft.	$724,734
100 Keyes Road #208, Concord, MA 1 Beds \| 2.5 Baths \| 1145 Sq. Ft.	$861,773

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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 01742, MA

Sale history for 100 Keyes Rd #233

Tax history for 100 Keyes Rd #233

Property details

About this building

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 01742

Home values near 100 Keyes Rd #233

More real estate resources