321 E 71st St, Apt 4D, New York, NY 10021 Property Records

New York City property record for 321 E 71st St, Apt 4D, New York, NY 10021

Property Summary

Property TypeCooperative Housing Block
Details19,040 sqft · built 1940
Lot Size0.117 acres (5,110 sqft)
OwnerIndividual Name on Record
APN01446-00124D

Property Details

APN / Parcel Number

Primary APN01446-00124D
Alternative APNs
  • 01446-0012-1-0-4D
  • 1-01446-0012-4D
  • 1-01446-0012

Interior

Units39 Units
Stories5 Stories
Building Area19,040 sqft Gross Area
1st Floor Area4,300 sqft

Exterior

Year BuiltBuilt 1940
Effective Year BuiltEffective 1940
Lot Area5,110 sqft (0.117 acres)
Lot Dimensions102 ft deep x 50 ft wide

Location & Zoning

Account Number1-01446-0012
Street Address321 E 71ST ST, 4D
CityNEW YORK
StateNY
Zip10021-4731
Property CategoryResidential
Property TypeResidential > Cooperative > Cooperative Housing Block
Local Zoning CodeR8B
Legal Block1446
Legal Lot Number12
JurisdictionNEW YORK (MANHATTAN) NY
Township / Civil DivisionMANHATTAN
Census Block Group1
Census Block1000
Census Tract12601

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Individually ListedMott Avenue Control House
listed 1980 · 1 contributing resources · NRIS 80002590

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

Source: New York City records, as of April 29, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on Record
Mailing Address321 E 71ST ST, 4D, NEW YORK, NY 10021-4731
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

Source: New York City assessment roll, as of April 29, 2026

Property Jurisdictions

TypeName
StateNew York
CountyNew York County
MunicipalityNew York City
Unified School DistrictNew York City Department Of Education (PK - 12)

Tax Bill & Assessment History

YearAssessed Market Value
2019$5,770,000 Land $783,000 Building $4,987,000

Assessed market value is set for property tax purposes and is not a market price estimate.

Flood

Source: FEMA National Flood Hazard Layer

FEMA Flood ZoneNot on file

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskNot rated
no burnable land within ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemNEW YORK CITY SYSTEM
serves 8,271,000 people · EPA ID NY7003493
Water SourceSurface water
Last State InspectionDec 2025
Lead10 ppb (2024)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureUncovered finished water reservoir
currently in violation since Feb 2017
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 1,095 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Astound Broadband
Cable · Fiber in parts of the area
1,500 / 50
Spectrum
Cable · Fiber in parts of the area
1,000 / 1,000
T-Mobile
Fixed Wireless
100 / 20

May also be available: Starry, Verizon.

Nearby Properties on E 71st St

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