21 Chadbourne Road, Lexington MA 02421

Lexington, MA 02421

$3,965,000

Est. $23,273/month

5

Beds

5.5

Baths

6,776

Sq Ft

$585

Price/Sq Ft

0.50

Acres

2018

Year Built

Single Family Residence

Type

60

Days on Market

Active Listed Apr 16, 2026 • MLS# 73503179 Copied!

About this home

EXTRAORDINARY OFFERING: Poised atop a private ½-acre lot at the end of a cul-de-sac, this custom designed GRAND CAPE showcases a level of finish rarely seen, w/ top-tier appliances, premium materials & custom millwork throughout. Elegant & expansive, this 5 BR, 5.5 bath home is meticulously designed w/ not a single detail overlooked & includes a luxurious separate apartment finished to the same exacting standard, as well as an exceptional finished lower level w/ gym, office, playroom & media room. Outdoor living is equally impressive w/ professionally landscaped grounds, a significant bluestone patio w/ built-in gas grill, fireplace & outdoor TV. The most critical elements, though less apparent, include state-of-the-art electrical & HVAC systems, superior insulation & high-performance infrastructure throughout, ensuring lasting quality. Built for efficiency & long-term performance, this home feels like new with a level of quality beyond today’s new construction. Must See!

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Public Records

Current Owner

Owner GALLAGHER TRS ROBERT & DEBORA

Mailing Address 21 CHADBOURNE RD, LEXINGTON, MA, 02421

Land Use

Use Code 1010

Description N/A

Zoning RO

Style CONTEMP.

Tax Information

Assessed Value $2,948,000

Assessment History

Year	Land	Building	Total	Change
FY2026	$944,000	$2,004,000	$2,948,000	—

Sale History

Date	Price	Book/Page
Jan 2, 2024	$1	01610/0039

Building Permit History

Issued	Type / Work	Status	Value
May 29, 2024	Gas Permit Residential- One Family Dwelling Permit #G-24-193	—	—
May 29, 2024	Plumbing Permit Residential- One Family Dwelling Permit #P-24-294	—	—

Data: Town of Lexington Building Permit Activity

Municipal Context: LEXINGTON

Property Data Comparison

Discrepancies found between MLS and assessor records.

Field	Assessor	MLS	Match
Sqft	10,289	6,776	✗
Year built	2,015	2,018	✗

Match: address_exact (95.0% confidence) · Data as of Jun 1, 2026

Property Overview

Property Type

Single Family Residence

Listing Type

For Sale

Year Built

2018

Bedrooms

5

Full Bathrooms

5

Half Bathrooms

1

Living Area

6,776 sq ft

Total Rooms

14

Main Level Bedrooms

1

Facts & Features

2 Car Garage

Central AC

Home Facts

Type Residential

Style Single Family Residence

Year Built 2018

Living Area 6,776 sq ft

Lot Size 0.50 acres

Bedrooms 5

Full Baths 5

Half Baths 1

Total Rooms 14

Interior

Heating Radiant, Propane

Cooling Central Air

Flooring Tile, Marble, Hardwood, Flooring - Hardwood, Flooring - Stone/ceramic Tile, Laminate

Appliances Water Heater, Tankless Water Heater, Range, Dishwasher, Disposal, Microwave, Indoor Grill, Refrigerator, Washer, Dryer, Wine Refrigerator, Range Hood, Wine Cooler, Plumbed For Ice Maker

Fireplace Family Room

Fireplaces 1

Basement Full, Finished, Interior Entry

Laundry Dryer Hookup - Electric, Washer Hookup, Laundry Closet, Closet/cabinets - Custom Built, Flooring - Stone/ceramic Tile, Pantry, Countertops - Upgraded, Main Level, Cabinets - Upgraded, Electric Dryer Hookup, Recessed Lighting, Crown Molding, Sink, First Floor

Features Vaulted Ceiling(s), Lighting - Pendant, Lighting - Overhead, Crown Molding, Decorative Molding, Bathroom - Full, Bathroom - Tiled With Shower Stall, Closet - Linen, Closet, Dining Area, Countertops - Stone/granite/solid, Countertops - Upgraded, Wet Bar, Cabinets - Upgraded, High Speed Internet Hookup, Open Floorplan, Recessed Lighting, Closet - Double, Closet/cabinets - Custom Built, Beadboard, Walk-in Closet(s), Cable Hookup, Storage, Entrance Foyer, Accessory Apt., Bathroom, Mud Room, Play Room, Media Room, Wet Bar, Wired For Sound, High Speed Internet

Exterior

Construction Frame

Architecture Cape, Contemporary

Roof Shingle

Features Porch, Patio, Rain Gutters, Storage, Professional Landscaping, Sprinkler System, Decorative Lighting, Screens, Fenced Yard, Stone Wall, Outdoor Gas Grill Hookup

Pool None

Spa None

Fencing Fenced/enclosed, Fenced

Patio/Porch Porch, Patio

Parking

Garage Spaces 2

Has Garage Yes

Features Attached, Garage Door Opener, Heated Garage, Storage, Workshop In Garage, Garage Faces Side, Insulated, Oversized, Paved Drive, Off Street, Paved

Total Spaces 6

Utilities

Electric Generator, Generator Connection

Water Public

Sewer Public Sewer

Gas None

Other For Gas Range, For Electric Oven, Washer Hookup, Icemaker Connection, Generator Connection, Outdoor Gas Grill Hookup

Financial

Annual Tax $36,290

Assessed Value $2,948,000

Interior Features

Flooring: Tile, Marble, Hardwood, Flooring - Hardwood, Flooring - Stone/Ceramic Tile, Laminate

Appliances: Water Heater, Tankless Water Heater, Range, Dishwasher, Disposal, Microwave, Indoor Grill, Refrigerator, Washer, Dryer, Wine Refrigerator, Range Hood, Wine Cooler, Plumbed For Ice Maker

Interior Features: Vaulted Ceiling(s), Lighting - Pendant, Lighting - Overhead, Crown Molding, Decorative Molding, Bathroom - Full, Bathroom - Tiled With Shower Stall, Closet - Linen, Closet, Dining Area, Countertops - Stone/Granite/Solid, Countertops - Upgraded, Wet bar, Cabinets - Upgraded, High Speed Internet Hookup, Open Floorplan, Recessed Lighting, Closet - Double, Closet/Cabinets - Custom Built, Beadboard, Walk-In Closet(s), Cable Hookup, Storage, Entrance Foyer, Accessory Apt., Bathroom, Mud Room, Play Room, Media Room, Wet Bar, Wired for Sound, High Speed Internet

Windows: Insulated Windows, Screens

Basement: Full, Finished, Interior Entry

Laundry: Dryer Hookup - Electric, Washer Hookup, Laundry Closet, Closet/Cabinets - Custom Built, Flooring - Stone/Ceramic Tile, Pantry, Countertops - Upgraded, Main Level, Cabinets - Upgraded, Electric Dryer Hookup, Recessed Lighting, Crown Molding, Sink, First Floor

Security: Security System

Construction & Materials

Style: Cape, Contemporary

Year Built: 2018

Structure Type:

Exterior Materials: Frame

Roof: Shingle

Foundation: Concrete Perimeter

Heating, Cooling & Utilities

Heating: Radiant, Propane

Heating Zones: 14

Cooling: Central Air

Cooling Zones: 8

Hot Water:

Water Source: Public

Sewer: Public Sewer

Energy Features: Thermostat

Exterior & Lot

Exterior Features: Porch, Patio, Rain Gutters, Storage, Professional Landscaping, Sprinkler System, Decorative Lighting, Screens, Fenced Yard, Stone Wall, Outdoor Gas Grill Hookup

Patio & Porch: Porch, Patio

Fencing: Fenced/Enclosed, Fenced

Other Structures:

Lot Features: Cul-De-Sac, Wooded

Road Frontage: 126.00 ft

Road Surface: Paved

Parking & Garage

Garage Spaces: 2

Garage Type: Attached

Total Parking Spaces: 6

Parking Features: Attached, Garage Door Opener, Heated Garage, Storage, Workshop in Garage, Garage Faces Side, Insulated, Oversized, Paved Drive, Off Street, Paved

Special Features

Fireplaces: 1

Fireplace Type: Family Room

View: Yes

View Type: Scenic View(s)

Community Amenities: Public Transportation, Shopping, Pool, Tennis Court(s), Park, Walk/Jog Trails, Golf, Medical Facility, Laundromat, Bike Path, Conservation Area, Highway Access, House of Worship, Private School, Public School

Location

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Neighborhood

21 Chadbourne Road, Lexington MA 02421

Lexington, MA 02421

Walkability

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Property History

Property Timeline

🏠

Listed for Sale

Apr 16, 2026

$3,965,000

Original listing

Agent: Coleman Group Office: William Raveis R.E. & Home Services

Date	Event	Price	Change	$/sqft	Details
04/16/2026	🏠 Listed for Sale	$3,965,000	-	-	Original listing

Price & Status History

Date	Event	Price	Change
Apr 16, 2026	New Listing Added	$3,965,000	—

Market Statistics

Days on Market

60 days

Price per Sq Ft

$585

Tax History

Year	Taxes	Assessment
2026	$36,290	$2,948,000

Financial Details

Annual Property Tax

$36,290

Tax Year 2026

Assessed Value

$2,948,000

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21 Chadbourne Road, Lexington MA 02421

About this home

Public Records

Current Owner

Land Use

Tax Information

Assessment History

Sale History

Building Permit History

Municipal Context: LEXINGTON

Property Data Comparison

Property Overview

Facts & Features

Home Facts

Interior

Exterior

Parking

Utilities

Financial

Interior Features

Construction & Materials

Heating, Cooling & Utilities

Exterior & Lot

Parking & Garage

Special Features

Location

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Elementary Schools

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High Schools

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