1851 21st Rd is a 2,720 square foot multi-family home on a 1,902 square foot lot. Based on Redfin's Astoria data, we estimate the home's value is $1,375,950.
Multi-familyProperty Type
1935Year Built
1,902 sq ftLot Size
$506Est. Price/Sq.Ft.
Source:Public Records
Listed by Helen Tzelios• Douglas Elliman Real Estate
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$7,255 (−19.5%)
$11,100 + $83,400
$94,500
2025
$9,017 (+3.4%)
$11,100 + $83,400
$94,500
2024
$8,722 (+4.0%)
$11,100 + $70,560
$81,660
2023
$8,382 (+35.6%)
$11,100 + $75,840
$86,940
2022
$6,180 (−27.7%)
$11,100 + $91,200
$102,300
2021
$8,550 (+5.4%)
$11,100 + $76,920
$88,020
2020
$8,115 (+7.2%)
$11,100 + $76,440
$87,540
2019
$7,570 (+5.2%)
$11,100 + $85,140
$96,240
2018
$7,195 (+2.6%)
$11,100 + $74,160
$85,260
2017
$7,011 (+3.6%)
$6,101 + $28,294
$34,395
2016
$6,768 (+8.3%)
$6,101 + $28,294
$34,395
2015
$6,247 (+13.6%)
$6,552 + $27,304
$33,856
2014
$5,501 (+5.4%)
$7,755 + $22,401
$30,156
2013
$5,218 (+6.5%)
$7,678 + $20,985
$28,663
2012
$4,899 (+7.7%)
$17,935 + $10,728
$28,663
2011
$4,549 (+5.9%)
$15,507 + $12,707
$28,214
2010
$4,294 (+16.5%)
$16,245 + $10,378
$26,623
2009
$3,687
$13,172 + $11,958
$25,130
Tax history for 1851 21st Rd
Year
Property tax
Land + Additions
Assessment*
2026
$7,255 (−19.5%)
$11,100 + $83,400
$94,500
2025
$9,017 (+3.4%)
$11,100 + $83,400
$94,500
2024
$8,722 (+4.0%)
$11,100 + $70,560
$81,660
2023
$8,382 (+35.6%)
$11,100 + $75,840
$86,940
2022
$6,180 (−27.7%)
$11,100 + $91,200
$102,300
2021
$8,550 (+5.4%)
$11,100 + $76,920
$88,020
2020
$8,115 (+7.2%)
$11,100 + $76,440
$87,540
2019
$7,570 (+5.2%)
$11,100 + $85,140
$96,240
2018
$7,195 (+2.6%)
$11,100 + $74,160
$85,260
2017
$7,011 (+3.6%)
$6,101 + $28,294
$34,395
2016
$6,768 (+8.3%)
$6,101 + $28,294
$34,395
2015
$6,247 (+13.6%)
$6,552 + $27,304
$33,856
2014
$5,501 (+5.4%)
$7,755 + $22,401
$30,156
2013
$5,218 (+6.5%)
$7,678 + $20,985
$28,663
2012
$4,899 (+7.7%)
$17,935 + $10,728
$28,663
2011
$4,549 (+5.9%)
$15,507 + $12,707
$28,214
2010
$4,294 (+16.5%)
$16,245 + $10,378
$26,623
2009
$3,687
$13,172 + $11,958
$25,130
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
R5B
Low Density Contextual Residence District
Although an R5B contextual district permits detached and semi-detached buildings, it is primarily a three-story rowhouse district typical of such neighborhoods as Windsor Terrace and Bay Ridge in Brooklyn. The traditional quality of R5B districts is reflected in the districts height and setback, front yard and curb cuts regulations that maintain the character of the neighborhood.
Permitted uses
Include but are not limited to:
Greenhouse / nursery
Community / recreation center
Religious facility
Hospital / medical center
Housing-Single unit
Housing-Multiple units
Educational / school
Library
Golf related
Park & open space
Property details
Exterior
Exterior Information
Building Type: Two Family
Property Information
Gross Sq. Ft: 2,720
# of Units: 2
# of Stories: 2
Lot Information
# of Buildings: 1
Land Sq. Ft: 1,902
Legal Lot Number: 245
Legal Block Number: 896
Municipality Name: DITMARS-STEINWAY
Acres: 0.0437
Depth Footage: 79.25
Front Footage: 24
Zoning Code: R5B
County Use Description: 2-FMLY BRICK
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: —
Baths: —
Sq. Ft.: 2,720
Stories: 2.0
Lot Size: 1,902 square feet
Style: Multi-Family (2-4 Unit)
Year Built: 1935
Year Renovated: 1935
County: Queens County
APN: 896245
Home facts updated by county records on Oct 9, 2026
Around this home
Schools
PS 122 Mamie Fay
Public PreK-8 • Assigned • 0.2mi
8/10
Long Island City High School
Public 9-12 • Assigned • 1.5mi
3/10
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
6/10 Heat Factor
7 days above 99° expected this year, 15 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
4/10 Air Factor
5 unhealthy days expected this year, 6 days in 30 years
Provided by First Street
Historical weather
Astoria, NY • 11105
Average low and high temperatures (°F)
36
27
39
29
54
39
63
48
71
56
82
68
86
73
81
67
77
65
65
54
56
45
42
32
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
$1.31M – $1.58M
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Property information provided by OneKey® MLS as Distributed by MLS Grid when last listed in 2023. This data may not match public records. Learn more.
Listing provided courtesy of: Douglas Elliman Real Estate
Listing agent: Helen Tzelios (6318969686)
Based on information submitted to the MLS GRID as of Sun Nov 01 2026. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.