NEW CONSTRUCTION
For sale
$3,675,000
Est. $24,319/mo —
6
bd
•
6.5 ba
•
7,123
sq ft

21 Balfour St, Lexington, MA 02421

map-entry

About this home

Single-familyProperty Type
2026Year Built
0.67 acresLot Size
$516Price/Sq.Ft.
2 garage spacesParking
Listed by The Joyce Team • Compass
Listed by Compass
Listing updated:
Redfin checked: 2 minutes ago
•Source:MLS PIN #73519860
152 days on Redfin • 3,212 views • 95 favorites

Payment calculator

$24,319 per month

Principal and interest$20,557
Property taxes
HOA dues
Home insurance
Utilities
Down payment
20% ($735,000)
Home price
$3,675,000
Loan details
30-yr fixed, 7.5%
5 minutes to get started. No credit impact. 

See this home in person

Open houses
No upcoming open houses.

Around this home

Schools

Maria Hastings Elementary School

Public K-5 • Assigned • 0.5mi

10/10
Wm Diamond Middle School

Public 6-8 • Assigned • 1.3mi

9/10
Lexington High School

Public 9-12 • Assigned • 1.0mi

10/10
Provided by GreatSchools
About North
Lexington

Provided by Walk Score and Local Logic

Offer insights

21 Balfour St · $3,675,000
$3.64M and above
75% chance or better to win
Why $3.64M+ is a strong offer
DAYS ON MARKET
153 days
The average home goes pending in 23 days.
SALE-TO-LIST
100.7%
Most homes are selling 1% above list price.
About offer insights

Property details

Kitchen

Kitchen

Bathroom

Bathroom

Bedroom

Bedroom

Living

Living

  • Interior features
  • 13 total rooms
  • Custom built closets and cabinets throughout
  • Recessed lighting
  • Wainscoting and crown molding
  • Walk-in closets
  • Wet bar (two) and wet bar in finished basement
  • Central vacuum
  • Wired for sound
  • High-speed internet
  • Office and game room
  • Insulated windows with screens
  • French doors
  • Bedrooms
  • Master bedroom on the second floor with tray ceiling, recessed lighting and custom built closets
  • Additional bedrooms located on the second floor with custom built closets and recessed lighting
  • Bathrooms
  • Six full bathrooms and one half bathroom
  • Master bath present
  • Multiple bathrooms feature double vanities, stone/granite countertops and tiled surrounds
  • Some baths include soaking tub and tiled shower stalls; one first-floor full bathroom
  • Kitchen
  • Custom built cabinets
  • Hardwood floors
  • Dining area and pantry
  • Stone/granite countertops
  • Kitchen island
  • Exterior deck access
  • Stainless steel appliances
  • Wine chiller/wine refrigerator
  • Second dishwasher
  • Pendant and recessed lighting, storage
  • Laundry & utility
  • Laundry on second floor with custom built cabinets and sink
  • Washer hook-up and electric dryer hook-up
  • Flooring
  • Hardwood floors in main living areas and bedrooms
  • Tile and carpet where noted
  • Stone/ceramic tile in baths
  • Heating & cooling
  • Central heating and cooling
  • Forced air and heat pump systems
  • Electric heat options

Sale and tax history for 21 Balfour St

Public record

Beds
6
Baths
7.5
Stories
2
Lot width
—
Lot depth
—
Lot size
0.68 Acres
Year renovated
—
Finished Sq. Ft.
5,550
Unfinished Sq. Ft.
—
Total Sq. Ft.
5,550
Year built
2025
Style
Single Family Residential
County
Middlesex County
APN
2288689S
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Sep 10, 2026.

Local insights from Redfin agents

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 • 02421
Average low and high temperatures (°F)
33
19
35
21
51
32
59
40
68
51
79
61
83
65
79
59
74
56
63
45
52
36
38
24
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

48/ 100

Low sunlight

Sunscore

There appears to be significant shading by surrounding buildings, terrain, and vegetation.

5.7 hrs
1.1 hrs
JuneDecember
Provided by Shadowmap

Redfin Estimate for 21 Balfour St

$3,571,579
$103K under list price of $3.68M
Nearby comparable homes
The Redfin Estimate uses 6 recent nearby sales, priced between $2.4M to $4.7M.

More resources

Rental earnings

Est. $8,394 per month, based on comparable rentals

Tour for free, no strings attached

Make a winning offer with the help of a local agent
Details provided by MLS PIN and may not match the public record. Learn more.
Download the Redfin App on the Apple App Store
Download the Redfin App from the Google Play Store
GreatSchools Ratings provided by GreatSchools.org.