21 Leonard Rd is a 1,657 square foot house on a 6,000 square foot lot with 2.5 bathrooms. - it last sold on April 18, 2005 for $657,000. Based on Redfin's Syosset data, we estimate the home's value is $1,085,910.
Single-familyProperty Type
1954Year Built
6,000 sq ftLot Size
$655Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,085,910
$429K since sold in April 2005$4,000 since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 3.8% lower than the average sale price ($1.13M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Jan 16, 2022 • Final
Sewer
Plumbing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 348
Basement Finish: Full
Basement Type: Full
Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1
Heating & Cooling
Air Conditioning Type: Central
Heating Fuel Type: Oil
Heating Type: Central
Room Information
# of Rooms: 6
Exterior
Exterior Information
Physical Condition: Good
Building Style Type: Split Level
Exterior Wall: Brick
Property Information
Living Sq. Ft: 1,657
Ground Floor Sq. Ft: 1,298
Building Sq. Ft: 1,657
# of Units: 1
# of Stories: 1
Parking & Garage Information
# of Parking Spaces: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 6,000
Legal Lot Number: 5
Legal Block Number: 424
Municipality Name: TOWN OF OYSTER BAY
Acres: 0.1377
Depth Footage: 100
Front Footage: 60
County Use Description: ONE FAMILY YEAR-ROUND RESIDENC
Utility Information
Electricity / Wiring Type: Available
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: —
Baths: 2.5
Sq. Ft.: 1,657
Stories: 1.0
Lot Size: 6,000 square feet
Style: Single Family Residential
Year Built: 1954
Year Renovated: —
County: Nassau County
APN: 12424 00050
Home facts updated by county records on Aug 17, 2026
Around this home
Schools
Robbins Lane Elementary School
Public K-5 • Assigned • 1.1mi
9/10
H B Thompson Middle School
Public 6-8 • Assigned • 1.5mi
8/10
Syosset Senior High School
Public 9-12 • Assigned • 3.2mi
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 98° expected this year, 16 days in 30 years
6/10 Wind Factor
67% chance of strong winds in next 30 years
4/10 Air Factor
5 unhealthy days expected this year, 7 days in 30 years
Provided by First Street
Historical weather
Syosset, NY • 11791
Average low and high temperatures (°F)
35
23
38
24
53
35
61
44
69
53
80
63
86
70
81
64
74
60
66
49
55
39
41
27
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 4.4 hours in December, placing it below the
U.S. average for solar exposure.
8.7 hrs
4.4 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.03M – $1.25M
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