OFF MARKET

Off Market Apr 2020 for $540K

$684,183

Est. refi paymentEst. refi $3,382/mo

•

875

sq ft

100 Keyes Rd #415, Concord, MA 01742

About this home

Fabulous opportunity to live in historic Concord center. This “Penthouse” condo has been beautifully renovated and offers sweeping panoramic views of downtown Concord. The extensive windows allow for an abundance of natural light to pour into all the living areas. With its open concept and flexible floor plan this condo offers luxury living at its finest. The renovations have been done to incorporate continuity with the overall building and a nod to modern living. The master bedroom, accented with a stately brick wall, private balcony and custom outfitted walk-in cedar closet is your own private oasis. In addition to the living room and dining room areas, it has a thoughtfully designed vestibule for office space or work area. This condo has in unit laundry and two deeded parking spaces. Walking distance to all that the vibrant downtown area has to offer including fabulous shops, restaurants and walking trails.

CondoProperty Type

1920Year Built

4.42 acresLot Size

$782Est. Price/Sq.Ft.

2 spacesParking

Listed by The Chi Team • William Raveis R.E. & Home Services

Bought with Senkler, Pasley & Whitney • Coldwell Banker Residential Brokerage - Concord

Redfin checked: a few seconds ago

•Source:MLS PIN #72642670

Redfin Estimate

$684,183

$144K since sold in April 2020$8,000 since July

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 66.2% higher than the average sale price ($412K) of 6 comparable homes.

SOLD JUL 31, 2026
$350,000
A
2 beds1 bath868 sq ft
15 Davis Rd Unit B1, Acton, MA 01720
SOLD JUN 18, 2026
$1,095,000
B
2 beds1.5 baths1,374 sq ft
34 Thoreau St #34, Concord, MA 01742
BOUGHT WITH REDFIN JUL 31, 2026
$220,000
C
1 bed1 bath770 sq ft
380 Great Rd Unit B 303, Acton, MA 01720
SOLD JUL 23, 2026
$267,000
D
1 bed1 bath693 sq ft
11 Davis Rd Unit b8, Acton, MA 01720
SOLD JUL 17, 2026
$218,500
E
1 bed1 bath652 sq ft
205 Great Rd Unit C-6, Acton, MA 01720
SOLD MAY 8, 2026
$320,000
F
2 beds1 bath842 sq ft
1 Drummer Rd Unit A5, Acton, MA 01720

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Earn from this home

Sell

$271,275

Est. take-home

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Refinance

Est. cash available

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Rent

$1,548/mo

Redfin rental estimate

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Market trends in 01742, MA

Last updated July 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.1%

1.0% MoM

Median sale price

$1.7M

$20K MoM

Avg. days on market

26d

7 days MoM

Recently sold homes

6 MoM

New listings for sale

$1,400,000
5 beds3 baths3,707 sq ft
12 White Ave, Concord, MA 01742
HOT HOME
$1,135,000
4 beds2.5 baths2,790 sq ft
221 Pope Rd, Acton, MA 01720
$935,000
4 beds2.5 baths1,849 sq ft
155 Belknap St, Concord, MA 01742
$3,999,000
5 beds7 baths8,477 sq ft
373 Caterina Hts, Concord, MA 01742
See all

Provided by Redfin

Sale history for 100 Keyes Rd #415

Date

Event

Price

MLS PIN #72642670

Apr 28, 2020

Sold

$540,000

$617/sq ft

Apr 20, 2020

Pending

—

Apr 12, 2020

Contingent

—

Apr 9, 2020

Listed

$549,000

$627/sq ft

MLS PIN #72584086

Dec 5, 2019

Sold

$470,000

$537/sq ft

Nov 11, 2019

Pending

—

Oct 28, 2019

Contingent

—

Oct 23, 2019

Listed

$455,500

$521/sq ft

+19

Rare opportunity in the heart of downtown Concord Center! Lovely 1 bedroom unit located on the top floor of the Milldam Square Condominiums. Beautiful oversized windows provide an abundance of natural light and views in this wonderful open concept floorplan. Large combination living room and dining room offering tremendous flexibility. Exposed brick, oversized walk-in cedar closet and a private patio complete the bedroom oasis. Freshly painted, all new stainless steel kitchen appliances. 2 deeded parking spaces and plentiful storage. Walk to train, coffee shops, restaurants, library and more in beautiful Concord Center. Carefree living at its best!

MLS PIN #71720428

Aug 28, 2014

Sold

$368,000

$421/sq ft

Aug 1, 2014

Contingent

—

Jul 28, 2014

Listed

$362,000

$414/sq ft

+13

In the heart of Concord Center, this wonderfully updated, bright and sunny, one bedroom, one bathroom fourth floor condominium offers one floor easy living just steps away from great shopping, restaurants, museums, and parks. Enjoy spacious living and dining areas with wood floors and three large windows overlooking the lovely grounds of Milldam Square; perfect for entertaining your family or friends. The kitchen boasts cherry cabinets, newer appliances, ceramic tile floor and designer lighting. The bedroom includes an exposed brick wall, spacious cedar walk in closet and access to the large balcony, perfect for that morning cup of coffee. The bathroom offers updated granite counter, designer sink and tiled shower with tub. Laundry is easy with an in unit washer and dryer. Three additional closets provide ample room for storage. A spacious community room with kitchen is available for those larger parties. Appreciate all Concord has to offer from this amazing location!

MLS PIN #71261831

Dec 30, 2011

Sold

$344,500

$394/sq ft

Nov 26, 2011

Contingent

—

Jul 14, 2011

Listed

$359,000

$410/sq ft

MLS PIN #70605775

Nov 30, 2007

Sold

$357,000

$408/sq ft

Nov 8, 2007

Listing Removed

—

Sep 8, 2007

Price Changed

$375,000

$429/sq ft

Jun 29, 2007

Listed

$399,000

$456/sq ft

Public Records

Jan 1, 1984

Sold

$105,000

$120/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$7,996 (+11.7%)

$612,700

2025

$7,160 (−7.6%)

$540,000

2024

$7,745 (+28.7%)

$589,900

2023

$6,017 (−6.2%)

$464,300

2022

$6,418 (+15.3%)

$434,800

2021

$5,566 (+6.3%)

$378,100

2020

$5,234 (+1.2%)

$367,800

2019

$5,171 (−1.9%)

$364,400

2018

$5,273 (+1.6%)

$369,000

2017

$5,192 (+20.0%)

$369,000

2016

$4,325 (+4.1%)

$310,700

2015

$4,156 (−4.5%)

$290,800

2014

$4,352 (−1.0%)

$301,200

2013

$4,397 (+6.2%)

$312,500

2012

$4,139 (+1.6%)

$304,800

2011

$4,073 (+4.6%)

$310,900

2010

$3,894 (−0.7%)

$297,500

2009

$3,922

$329,600

Tax history for 100 Keyes Rd #415

Year

Property tax

Land + Additions

Assessment*

2026

$7,996 (+11.7%)

$612,700

2025

$7,160 (−7.6%)

$540,000

2024

$7,745 (+28.7%)

$589,900

2023

$6,017 (−6.2%)

$464,300

2022

$6,418 (+15.3%)

$434,800

2021

$5,566 (+6.3%)

$378,100

2020

$5,234 (+1.2%)

$367,800

2019

$5,171 (−1.9%)

$364,400

2018

$5,273 (+1.6%)

$369,000

2017

$5,192 (+20.0%)

$369,000

2016

$4,325 (+4.1%)

$310,700

2015

$4,156 (−4.5%)

$290,800

2014

$4,352 (−1.0%)

$301,200

2013

$4,397 (+6.2%)

$312,500

2012

$4,139 (+1.6%)

$304,800

2011

$4,073 (+4.6%)

$310,900

2010

$3,894 (−0.7%)

$297,500

2009

$3,922

$329,600

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

Public record

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

—

Year renovated

1955

Sq. Ft.

875

Year built

1952

Style

Condo/Co-op

County

Middlesex County

APN

1833161S

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 30, 2026.

Property details

Parking

Parking Information
Has Open Parking
Parking Spaces: 2
Parking Features: Deeded, Paved

Interior

Master Bedroom Information
Area: 132
Length: 12
Width: 11
Level: Fourth Floor
Features: Walk-In Closet(s),Flooring - Laminate,Balcony / Deck,Crown Molding

Bathroom Information
# of Bathrooms (Full): 1

Bathroom #1 Information
Level: Fourth Floor
Features: Bathroom - Full,Bathroom - Tiled With Tub & Shower,Flooring - Stone/Ceramic Tile,Countertops - Stone/Granite/Solid

Living Room Information
Area: 256
Length: 16
Width: 16
Level: Fourth Floor
Features: Flooring - Wood,Window(s) - Picture

Dining Room Information
Area: 160
Length: 16
Width: 10
Level: Fourth Floor
Features: Flooring - Wood,Window(s) - Picture

Kitchen Information
Area: 90
Length: 10
Width: 9
Level: Fourth Floor
Features: Flooring - Stone/Ceramic Tile,Countertops - Stone/Granite/Solid,Stainless Steel Appliances,Lighting - Overhead

Basement Information
Basement: N

Laundry Information
Laundry Features: Fourth Floor, In Unit

Interior Features
# of Rooms (Total): 4
Flooring: Wood, Tile, Laminate

Exterior

Building Information
Building Name: Mildham
Building Area (Total): 875
StructureType: Mid-Rise
Stories (Total): 1
Year Built Source: Public Records
Year Built Effective: 1982
Year Built Details: Actual

Exterior Features
Exterior Features: Balcony

Property Information
PropertySubType: Condominium
Property AttachedYN: Yes
Common Walls: No One Above
Entry Level: 4

Lot Information
Lot Size (Acres): 4.42

Financial

Tax Information
Tax Annual Amount: $5,234
Tax Year: 2020

Utilities

Utility Information
Utilities: for Electric Range
Sewer: Public Sewer
Water Source: Public

Heating & Cooling
Has Heating
Has Cooling
Heating: Forced Air, Heat Pump, Electric
Cooling: Central Air

Location

HOA Information
Association Fee: $461
Association Fee Frequency: Monthly
Association Fee Includes: Insurance, Maintenance Structure, Road Maintenance, Maintenance Grounds, Snow Removal, Trash
Association Amenities: Hot Water, Storage

Location Information
Directions: Main Street to Keyes Road
UnparsedAddress: 100 Keyes Rd # 415, Concord MA 01742

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Walk/Jog Trails, Medical Facility, Laundromat, Conservation Area, Private School, Public School
Pets Allowed: Yes w/ Restrictions

Public facts

Beds: 1
Baths: 1.0
Sq. Ft.: 875
Stories: 1.0
Lot Size: —
Style: Condo/Co-op
Year Built: 1952
Year Renovated: 1955
County: Middlesex County
APN: 1833161S

Home facts updated by county records on Jul 30, 2026

Other

Miscellaneous Information
Heat Zones: 1

Listing Information
StandardStatus: Closed

About this building

No units for sale

100 Keyes Rd, Concord, MA 01742

See photos & sale trends

Photo via 100 Keyes Rd #307

Units for sale

Unit Information Not Available

There aren't any units for sale in this building.

Around this home

Schools
Places
Transit

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

$650,000 – $787,000

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HOT HOME

$1,135,000

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$935,000

4 beds2.5 baths1,849 sq ft

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Home values near 100 Keyes Rd #415

Data from public records.

Address	Redfin Estimate
100 Keyes Road #313, Concord, MA 1 Beds \| 1 Baths \| 908 Sq. Ft.	$589,210
100 Keyes Road #204, Concord, MA 2 Beds \| 2 Baths \| 1339 Sq. Ft.	$909,561

Address	Redfin Estimate
100 Keyes Road #131, Concord, MA 1 Beds \| 1 Baths \| 1040 Sq. Ft.	$597,562
100 Keyes Road #223, Concord, MA 2 Beds \| 2 Baths \| 1300 Sq. Ft.	$898,678

Address	Redfin Estimate
100 Keyes Road #133, Concord, MA 2 Beds \| 2 Baths \| 1466 Sq. Ft.	$889,972
100 Keyes Road #304, Concord, MA 2 Beds \| 2 Baths \| 1304 Sq. Ft.	$812,821

Property information provided by MLS PIN when last listed in 2020. 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 01742, MA

Sale history for 100 Keyes Rd #415

Tax history for 100 Keyes Rd #415

Public record

Property details

About this building

Unit Information Not Available

Around this home

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 01742

Home values near 100 Keyes Rd #415

More real estate resources