OFF MARKET

Off market mar 2021 for $1.1M

$1,460,225

Est. refi paymentEst. refi $699/mo

•

1,630

sq ft

4 Turning Mill Rd, Lexington, MA 02420

About this home

Award-winning architect has expanded and transformed this iconic mid-century home that served as Carl Koch’s 1956 model Techbuilt residence for the Turning Mill community. The extensive renovation and expansion in 2013 created a new life for this home, with reverence to Koch’s innovative open plan, providing space to work, cook, teach and learn from home. Sophisticated design seamlessly connects old to new, creating intimate spaces warmed by wood fireplaces, custom walnut millwork, exposed beams, clean modern lines. New and efficient systems, exquisite details and finishes throughout this 3 bed 2 bath home. Stunning kitchen, dining and family rooms, w vast windows offering constant connection to nature. Gracious outdoor living on private patio and grounds, surrounded by mature trees and wildlife. Create your art/music/yoga studio in detached garage, powered and ready to charge your Tesla! Top-ranked Estabrook School and neighborhood Paint Rock Pool complete this ideal modern homestead.

Single-familyProperty Type

1956Year Built

0.74 acresLot Size

$896Est. Price/Sq.Ft.

1 garage spacesParking

Listed by Laura Segal • Gibson Sotheby's International Realty

Bought with Heung Pak • Real Living Barbera Associates | Cambridge

Redfin checked: 2 minutes ago

•Source:MLS PIN #72781811

Redfin Estimate

$1,460,225

$310K since sold in March 2021$1,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 54.7% higher than the average sale price ($944K) of 6 comparable homes.

SOLD OCT 16, 2026
$949,000
A
3 beds2 baths1,488 sq ft
18 Wyman Rd, Lexington, MA 02420
SOLD OCT 19, 2026
$620,000
B
3 beds2 baths1,456 sq ft
70 Muller Rd, Burlington, MA 01803
SOLD MAY 29, 2026
$1,525,000
C
4 beds2.5 baths1,680 sq ft
7 Gould Rd, Lexington, MA 02420
SOLD AUG 21, 2026
$780,000
D
3 beds2 baths1,525 sq ft
7 Curve St, Bedford, MA 01730
SOLD SEP 25, 2026
$875,000
E
3 beds2 baths2,657 sq ft
88 Muller Rd, Burlington, MA 01803
SOLD JUL 10, 2026
$915,000
F
3 beds2 baths1,627 sq ft
14 Belmont Rd, Burlington, MA 01803

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Sell

$567,856

Est. take-home

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Est. cash available

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Rent

$3,318/mo

Redfin rental estimate

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Market trends in 02420, MA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

98.9%

1.4% MoM

Median sale price

$1.5M

$10K MoM

Avg. days on market

34d

4 days MoM

Recently sold homes

11 MoM

New listings for sale

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$3,275,000
6 beds6.5 baths6,713 sq ft
5 Skyview Rd, Lexington, MA 02420
EARLY ACCESS
$4,700,000
6 beds10 baths7,904 sq ft
17 Holmes Rd, Lexington, MA 02420
OPEN TODAY, 12PM TO 2PM
$1,125,000
3 beds2 baths1,664 sq ft
82 Adams, Lexington, MA 02420
COMING SOON
$1,098,000
3 beds2.5 baths2,771 sq ft
25 Pine Knoll Rd, Lexington, MA 02420
OPEN SUN, 10AM TO 11AM
$889,000
3 beds2.5 baths1,883 sq ft
99 Fifer Ln #99, Lexington, MA 02420
$899,000
2 beds1.5 baths1,340 sq ft
32 Ivan, Lexington, MA 02420
OPEN TODAY, 1PM TO 2:30PM
$1,150,000
3 beds3 baths2,195 sq ft
6 Lois Ln #6, Lexington, MA 02420
OPEN SUN, 12:30PM TO 2PM
$1,579,000
3 beds2.5 baths2,317 sq ft
18 Sullivan St, Lexington, MA 02420
See all

Provided by Redfin

Sale history for 4 Turning Mill Rd

Date

Event

Price

MLS PIN #72781811

Mar 29, 2021

Sold

$1,150,000

$706/sq ft

Feb 9, 2021

Contingent

—

Feb 3, 2021

Listed

$1,099,000

$674/sq ft

MLS PIN #71403113

Aug 24, 2012

Sold

$459,000

$282/sq ft

Jul 5, 2012

Contingent

—

Jun 28, 2012

Listed

$449,000

$275/sq ft

Techbuilt model home has lived up to its forward-looking modernism. The design offers an abundance of natural light. No space is wasted with this open floor plan. 3BR, originally 4BR, 1.5 BA home on a 3/4 acre wooded lot. One of a dozen featured on the Lex. Historical Society’s Modernism Tour. Designed by revered early innovator, Carl Koch. Over-sized one-car garage has a heater and was built as a studio. Paint Rock Pool swim club membership. Close to soon-to-be-newly-built Estabrook School.

Public Records

Sep 20, 1983

Sold

$108,000

$66/sq ft

Year

Property tax

Land + Additions

Assessment*

2026

$14,427 (+4.4%)

$825,000 + $347,000

$1,172,000

2025

$13,820 (+5.1%)

$786,000 + $344,000

$1,130,000

2024

$13,144 (+4.3%)

$749,000 + $324,000

$1,073,000

2023

$12,597 (+6.8%)

$681,000 + $288,000

$969,000

2022

$11,799 (+1.6%)

$619,000 + $236,000

$855,000

2021

$11,613 (+1.3%)

$590,000 + $217,000

$807,000

2020

$11,465 (+4.1%)

$590,000 + $226,000

$816,000

2019

$11,014 (+3.7%)

$562,000 + $218,000

$780,000

2018

$10,625 (+13.0%)

$535,000 + $208,000

$743,000

2017

$9,404 (+0.3%)

$505,000 + $144,000

$649,000

2016

$9,373 (+27.5%)

$480,000 + $162,000

$642,000

2014

$7,352 (−3.6%)

$393,000 + $81,000

$474,000

2013

$7,630 (+2.3%)

$380,000 + $122,000

$502,000

2012

$7,455 (+7.4%)

$372,000 + $126,000

$498,000

2011

$6,941 (−8.3%)

$352,000 + $130,000

$482,000

2010

$7,568 (+3.5%)

$352,000 + $194,000

$546,000

2009

$7,315

$370,000 + $194,000

$564,000

Tax history for 4 Turning Mill Rd

Year

Property tax

Land + Additions

Assessment*

2026

$14,427 (+4.4%)

$825,000 + $347,000

$1,172,000

2025

$13,820 (+5.1%)

$786,000 + $344,000

$1,130,000

2024

$13,144 (+4.3%)

$749,000 + $324,000

$1,073,000

2023

$12,597 (+6.8%)

$681,000 + $288,000

$969,000

2022

$11,799 (+1.6%)

$619,000 + $236,000

$855,000

2021

$11,613 (+1.3%)

$590,000 + $217,000

$807,000

2020

$11,465 (+4.1%)

$590,000 + $226,000

$816,000

2019

$11,014 (+3.7%)

$562,000 + $218,000

$780,000

2018

$10,625 (+13.0%)

$535,000 + $208,000

$743,000

2017

$9,404 (+0.3%)

$505,000 + $144,000

$649,000

2016

$9,373 (+27.5%)

$480,000 + $162,000

$642,000

2014

$7,352 (−3.6%)

$393,000 + $81,000

$474,000

2013

$7,630 (+2.3%)

$380,000 + $122,000

$502,000

2012

$7,455 (+7.4%)

$372,000 + $126,000

$498,000

2011

$6,941 (−8.3%)

$352,000 + $130,000

$482,000

2010

$7,568 (+3.5%)

$352,000 + $194,000

$546,000

2009

$7,315

$370,000 + $194,000

$564,000

*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

2.5

Stories

Lot width

—

Lot depth

—

Lot size

0.74 Acres

Year renovated

—

Sq. Ft.

1,270

Year built

1956

Style

Single Family Residential

County

Middlesex County

APN

2758968S

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 10, 2026.

Property details

Parking

Parking Information
Has Garage
Has Open Parking
# of Garage Spaces: 1
# of Covered Spaces: 1
Parking Spaces: 3
Parking Features: Detached, Storage, Workshop in Garage, Garage Faces Side, Paved Drive, Off Street, Paved

Interior

Master Bedroom Information
Level: Second
Features: Vaulted Ceiling(s),Walk-In Closet(s),Flooring - Wood,Remodeled

Bedroom #2 Information
Level: Second
Features: Vaulted Ceiling(s),Flooring - Wood,Remodeled

Bedroom #3 Information
Level: First
Features: Flooring - Wood,Remodeled

Bathroom Information
# of Bathrooms (Full): 2

Bathroom #1 Information
Level: First
Features: Bathroom - Full,Bathroom - Tiled With Tub,Flooring - Stone/Ceramic Tile,Remodeled

Bathroom #2 Information
Level: Second
Features: Bathroom - Full,Bathroom - Tiled With Tub & Shower,Flooring - Stone/Ceramic Tile,Countertops - Stone/Granite/Solid,Remodeled

Living Room Information
Level: Main,First
Features: Vaulted Ceiling(s),Closet,Closet/Cabinets - Custom Built,Flooring - Wood,Window(s) - Picture,Exterior Access,Slider,Vestibule

Dining Room Information
Level: Main,First
Features: Beamed Ceilings,Flooring - Wood,Window(s) - Picture,Open Floorplan,Remodeled,Slider

Kitchen Information
Level: Main,First
Features: Beamed Ceilings,Flooring - Wood,Dining Area,Countertops - Stone/Granite/Solid,Kitchen Island,Open Floorplan,Remodeled

Laundry Information
Laundry Features: Flooring - Wood, Electric Dryer Hookup, Remodeled, Washer Hookup, First Floor

Fireplace Information
Has Fireplace
# of Fireplaces (Total): 2
Fireplace Features: Dining Room, Living Room

Interior Features
# of Rooms (Total): 8
Door Features: Insulated Doors
Window Features: Insulated Windows
Flooring: Tile, Engineered Hardwood

Exterior

Building Information
Building Area (Total): 1,630
Foundation Details: Slab
Construction Materials: Frame, Post & Beam
Year Built Source: Public Records
Year Built Details: Approximate,Renovated Since
Color: Gray

Exterior Features
Roof: Shingle, Rubber
Patio And Porch Features: Patio
Exterior Features: Patio, Rain Gutters, Lighting

Property Information
PropertySubType: Single Family Residence

Lot Information
Lot Size (Acres): 0.74
Lot Features: Wooded, Gentle Sloping
Road Surface Type: Paved
Road Frontage Type: Public
Road Responsibility: Public Maintained Road

Financial

Tax Information
Tax Annual Amount: $11,465
Tax Year: 2020

Utilities

Utility Information
Utilities: for Electric Range, for Electric Oven, for Electric Dryer, Washer Hookup, Icemaker Connection
Sewer: Public Sewer
Water Source: Public
Electric: Circuit Breakers, 200+ Amp Service

Heating & Cooling
Has Heating
Has Cooling
Heating: Electric Baseboard, Radiant, Electric, Ductless
Cooling: Ductless

Location

Location Information
Directions: Grove St to Robinson Rd to Turning Mill Rd
UnparsedAddress: 4 Turning Mill Road, Lexington MA 02420

Community Information
Senior CommunityYN: No
Community Features: Public Transportation, Shopping, Pool, Walk/Jog Trails, Conservation Area, Highway Access, Public School

Public facts

Beds: 3
Baths: 2.5
Sq. Ft.: 1,270
Stories: 2.0
Lot Size: 0.74 acres
Style: Single Family Residential
Year Built: 1956
Year Renovated: —
County: Middlesex County
APN: 2758968S

Home facts updated by county records on Sep 10, 2026

Other

Miscellaneous Information
Heat Zones: 5

Listing Information
Exclusions: Included: Tesla Charging Station On Garage And Firewood Rack On Patio Will Remain.
StandardStatus: Closed

Around this home

Schools

K - 12
Preschool & daycare

Joseph Estabrook Elementary School

Public K-5 • Assigned • 0.3mi

9/10

Wm Diamond Middle School

Public 6-8 • Assigned • 0.8mi

9/10

Lexington High School

Public 9-12 • Assigned • 2.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Lexington continues to be a competitive Seller's market driven by its historic appeal & location. With buildable land exhausted, true inventory growth is very constrained; development mostly replaces existing homes. New zoning laws will eventually...
1 month ago • Lexington
Benjamin Ginsburg
Redfin Premier agent
155 deals
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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 98° expected this year, 15 days in 30 years

6/10 Wind Factor

27% chance of strong winds in next 30 years

3/10 Air Factor

2 unhealthy days expected this year, 3 days in 30 years

Provided by First Street

Historical weather

Lexington, MA • 02420

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

$1.39M – $1.68M

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Home values near 4 Turning Mill Rd

Data from public records.

Address	Redfin Estimate
9 Turning Mill Road, Lexington, MA 3 Beds \| 2 Baths \| 1176 Sq. Ft.	$1,004,268
3 Turning Mill Road, Lexington, MA 3 Beds \| 2.5 Baths \| 1690 Sq. Ft.	$1,000,836
14 Robinson Road, Lexington, MA 3 Beds \| 2 Baths \| 1008 Sq. Ft.	$841,853
29 Robinson Road, Lexington, MA 4 Beds \| 1.5 Baths \| 1947 Sq. Ft.	$1,461,806
4 Demar Road, Lexington, MA 4 Beds \| 2 Baths \| 1581 Sq. Ft.	$1,427,805
3 Demar Road, Lexington, MA 5 Beds \| 2.5 Baths \| 2800 Sq. Ft.	$1,502,857
10 Robinson Road, Lexington, MA 3 Beds \| 2 Baths \| 1776 Sq. Ft.	$1,177,921

Address	Redfin Estimate
7 Turning Mill Road, Lexington, MA 3 Beds \| 1 Baths \| 1449 Sq. Ft.	$957,170
6 Turning Mill Road, Lexington, MA 4 Beds \| 2.5 Baths \| 3020 Sq. Ft.	$1,685,072
18 Robinson Road, Lexington, MA 5 Beds \| 6.5 Baths \| 5752 Sq. Ft.	$2,867,872
23 Robinson Road, Lexington, MA 4 Beds \| 2.5 Baths \| - Sq. Ft.	$1,844,339
8 Demar Road, Lexington, MA 4 Beds \| 3 Baths \| 2314 Sq. Ft.	$1,783,096
15 Robinson Road, Lexington, MA 4 Beds \| 2 Baths \| 2189 Sq. Ft.	$1,091,207
12 Robinson Road, Lexington, MA 4 Beds \| 3 Baths \| 2488 Sq. Ft.	$1,306,393

Address	Redfin Estimate
5 Turning Mill Road, Lexington, MA 3 Beds \| 3 Baths \| 3429 Sq. Ft.	$1,619,722
8 Turning Mill Road, Lexington, MA 4 Beds \| 2.5 Baths \| 3092 Sq. Ft.	$1,440,403
33 Robinson Road, Lexington, MA 3 Beds \| 1.5 Baths \| 1706 Sq. Ft.	$1,281,095
2 Demar Road, Lexington, MA 4 Beds \| 2.5 Baths \| 2026 Sq. Ft.	$1,479,237
5 Demar Road, Lexington, MA 3 Beds \| 2 Baths \| 2051 Sq. Ft.	$1,392,010
25 Robinson Road, Lexington, MA 4 Beds \| 4.5 Baths \| 3900 Sq. Ft.	$2,301,563
28 Robinson Road, Lexington, MA 5 Beds \| 5 Baths \| 4500 Sq. Ft.	$2,701,047

Property information provided by MLS PIN when last listed in 2021. This data may not match . Learn more.

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