New York City property record for 643 9th Ave, New York, NY 10036
| Property Type | Apartments (5+ Units) |
|---|---|
| Details | 15,200 sqft · built 1910 |
| Lot Size | 0.074 acres (3,200 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $18,000,000 (Sep 2025) |
| Tax Bill | $629,662 (2025) |
| Deeds & Mortgages | Feb 2023 Sale |
| APN | 01055-0029 |
| Primary APN | 01055-0029 |
|---|---|
| Alternative APN |
|
| Units | 43 Units |
|---|---|
| Stories | 5 Stories |
| Building Area | 15,200 sqft Living Area |
| 1st Floor Area | 3,000 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Condo/Apartment |
| Lot Area | 3,200 sqft (0.074 acres) |
| Lot Dimensions | 80 ft deep x 40 ft wide |
| View / Lot | Corner |
| Account Number | 1-01055-0029 |
|---|---|
| Street Address | 643 9TH AVE |
| City | NEW YORK |
| State | NY |
| Zip | 10036 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Apartments (5+ Units) |
| Local Zoning Code | R8 |
| Legal Block | 1055 |
| Legal Lot Number | 29 |
| Jurisdiction | NEW YORK (MANHATTAN) NY |
| Township / Civil Division | MANHATTAN |
| Census Block Group | 4 |
| Census Block | 4000 |
| Census Tract | 12102 |
643 9th Ave, a residential property, is owned by a company that bought it in September 2025.
Source: New York City records, as of June 30, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 450 SEVENTH AVE FL FL, NEW YORK, NY 10123 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
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 | Sep 15, 2025 · Amount on File |
| Deed Sale | Sep 15, 2025 · Amount on File |
| Prior Sale | Feb 2, 2023 · Amount on File |
| Prior Transfer Date | May 28, 2013 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | NEW YORK (MANHATTAN) NY |
| Recording Date | Feb 2, 2023 |
| Property Address | 643 9TH AVE, NEW YORK, NY 10036 |
| Document Number | 0000031229 |
| Instrument Date | Jan 25, 2023 |
| Instrument | 2023000031229 |
| Transaction Type | Transfer |
| Record Updated | Feb 14, 2023 |
| Amount | Amount on Record |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 411 5TH AVE # AVE9TH, AVE9TH, NEW YORK, NY 10016-2203 |
| Name | Verified Name |
|---|---|
| Address | 2340 COLLINS AVE # 700, 700, MIAMI BEACH, FL 33139-1604 |
The 2025 property tax bill for 643 9th Ave was $629,662, up 2.1% 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 | $5,037,300 (-) Land $576,000 Building $4,461,300 | $11,194,000 (-9.46%) Land $1,280,000 Building $9,914,000 | |
| 2025 | $629,662.00 (+2.13%) | $5,037,300 Land $576,000 Building $4,461,300 | $12,363,000 Land $1,280,000 Building $11,083,000 |
| 2024 | $616,531.00 (+1.56%) | ||
| 2023 | $607,045.00 | $4,855,590 Land $576,000 Building $4,279,590 | $11,224,000 Land $1,280,000 Building $9,944,000 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
FEMA has no flood map on file for 643 9th Ave.
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 643 9th Ave 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 637 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 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Nuvisions, Skywire Networks, Starry, Verizon.
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