New York City property record for 421 E 84th St, New York, NY 10028
| Property Type | Cooperative Housing Block |
|---|---|
| Details | 7,250 sqft · built 1922 |
| Lot Size | 0.047 acres (2,043 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $607,500 (Dec 2024) |
| Tax Bill | $118,963 (2025) |
| APN | 01564-0110 |
| Primary APN | 01564-0110 |
|---|---|
| Alternative APNs |
|
| Units | 14 Units |
|---|---|
| Stories | 5 Stories |
| Building Area | 7,250 sqft Living Area |
| 1st Floor Area | 1,340 sqft |
| Year Built | Built 1922 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Condo/Apartment |
| Lot Area | 2,043 sqft (0.047 acres) |
| Lot Dimensions | 102 ft deep x 20 ft wide |
| Account Number | 1-01564-0110 |
|---|---|
| Street Address | 421 E 84TH ST |
| City | NEW YORK |
| State | NY |
| Zip | 10028-6223 |
| Property Category | Residential |
| Property Type | Residential > Cooperative > Cooperative Housing Block |
| Local Zoning Code | R8B |
| Legal Block | 1564 |
| Legal Lot Number | 110 |
| Jurisdiction | NEW YORK (MANHATTAN) NY |
| Township / Civil Division | MANHATTAN |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 14401 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Individually Listed | Mott 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.
421 E 84th St, a cooperative housing block, is owned by two individuals who bought it in December 2024.
Source: New York City records, as of April 29, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 227 E 59TH ST, 1B, BROOKLYN, NY 11203-5438 |
| Owner Type | Individual |
| Vesting | Individual(s) |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 10, 2024 · Amount on File |
| Deed Sale | Dec 10, 2024 · Amount on File |
| Deed Document Number | 20242024000320858 |
| Record Updated | Jun 8, 2026 |
The 2025 property tax bill for 421 E 84th St was $118,963, up 8.6% from the year before.
Source: New York City assessment roll, as of April 29, 2026
| Type | Name |
|---|---|
| State | New York |
| County | New York County |
| Municipality | New York City |
| Unified School District | New York City Department Of Education (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $1,030,894 (+3.68%) Land $329,710 Building $701,184 | $3,283,000 (-4.92%) Land $1,050,000 Building $2,233,000 | |
| 2025 | $118,963.00 (+8.58%) | $994,267 Land $302,340 Building $691,927 | $3,453,000 Land $1,050,000 Building $2,403,000 |
| 2024 | $109,559.00 (+5.87%) | ||
| 2023 | $103,489.00 Homeowner's exemption Veteran's exemption | $870,110 Land $272,721 Building $597,389 | $3,350,000 Land $1,050,000 Building $2,300,000 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA has no flood map on file for 421 E 84th St.
Source: FEMA National Flood Hazard Layer
| FEMA Flood Zone | Not on file |
|---|
Values are read at the parcel center point; lenders make the official flood determination.
The area around 421 E 84th St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | NEW YORK CITY SYSTEM serves 8,271,000 people · EPA ID NY7003493 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2025 |
| Lead | 10 ppb (2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Uncovered finished water reservoir currently in violation since Feb 2017 |
| Monitoring and Reporting | None 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.
Source: FCC Broadband Data Collection, based on 980 locations within half a mile, as of December 31, 2025
| Provider | Max 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 |
| Verizon Fixed Wireless · Fiber in parts of the area | 1,000 / 75 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Starry.
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