Off Market Mar 2020 for $547K
$1,023,510
Est. refi paymentEst. refi $4,105/mo
3
bd
2 ba
2,340
sq ft

21 Allison Rd, Katonah, NY 10536

map-entry

About this home

Single-familyProperty Type
1960Year Built
1.16 acresLot Size
$437Est. Price/Sq.Ft.
1 spaceParking
Listing by Donna Camadeco Douglas Elliman Real Estate
Bought with Raymond Magnani Houlihan Lawrence Inc.
Redfin checked: a few seconds ago
Source:OneKey® MLS as Distributed by MLS Grid #H5014048

Redfin Estimate

$1,023,510
$476K since sold in March 2020$192K since August

This home's estimate is 5.5% higher than the average sale price ($970K) of 6 comparable homes.

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Sell
$580,676
Est. take-home

List your home with Redfin and save $10,235

Refinance
$0
Est. cash available

Get cash now or lower your monthly rate

Rent
$3,237/mo
Redfin rental estimate

List your home for rent

Market trends in 10536, NY

Sale history for 21 Allison Rd

Tax history for 21 Allison Rd

*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
1.17 Acres
Year renovated
Sq. Ft.
Year built
Style
Single Family Residential
County
Westchester County
APN
552000A04900800020170000000
Parking Spaces
Basement
Accessible
HOA Dues
Garage
Features
Last updated by owner on Jul 30, 2026.

Property details

Around this home

Schools

Katonah Elementary School

Public K-5 • Assigned • 1.7mi

10/10
John Jay Middle School

Public 6-8 • Assigned • 3.3mi

7/10
John Jay High School

Public 9-12 • Assigned • 3.3mi

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 99° expected this year, 15 days in 30 years

5/10 Wind Factor

26% chance of strong winds in next 30 years

4/10 Air Factor

3 unhealthy days expected this year, 6 days in 30 years

Provided by First Street

Historical weather

Katonah, NY • 10536
Average low and high temperatures (°F)
34
20
37
21
54
34
63
43
70
51
81
61
87
68
82
60
77
57
67
46
54
37
39
25
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sun exposure

In this area, properties receive around 8.7 hours in June and 4.2 hours in December, placing it below the U.S. average for solar exposure.

8.7 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$973,000 – $1.18M

Reach more buyers when you sell with Redfin. Save up to $10,235 in fees. 3 minutes to get started.

Need the cash from your home fast? Sell to .

Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2019. This data may not match public records. 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.