New York City property record for 9520 Flatlands Ave, Brooklyn, NY 11236
| Property Type | Duplex |
|---|---|
| Details | 1,580 sqft · built 1925 |
| Lot Size | 0.062 acres (2,719 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $6,893 (2026) |
| Deeds & Mortgages | Feb 2020 Loan Modification |
| APN | 08203-0048 |
| Primary APN | 08203-0048 |
|---|---|
| Alternative APNs |
|
| Units | 2 Units |
|---|---|
| Stories | 2 Stories |
| Building Area | 1,580 sqft Living Area |
| 1st Floor Area | 880 sqft |
| Year Built | Built 1925 |
|---|---|
| Effective Year Built | Effective 1925 |
| Architectural Style | Duplex Single |
| Construction Type | Frame |
| Lot Area | 2,719 sqft (0.062 acres) |
| Lot Dimensions | 108 ft deep x 25 ft wide |
| Account Number | 3-08203-0048 |
|---|---|
| Street Address | 9520 FLATLANDS AVE |
| City | BROOKLYN |
| State | NY |
| Zip | 11236-3710 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R4-1 |
| Legal Block | 8203 |
| Legal Lot Number | 48 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 96600 |
9520 Flatlands Ave, a duplex, is owned and occupied by an individual who acquired it in October 2001.
Source: New York City records, as of August 31, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9520 FLATLANDS AVE, BROOKLYN, NY 11236-3710 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 3, 2001 |
| Deed Sale | Oct 3, 2001 |
| Prior Sale | May 4, 2000 · Amount on File |
| Deed Book / Page | 05303 / 00794 |
| Prior Transfer Date | Jun 12, 1995 |
| Record Updated | Oct 29, 2026 |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Property Address | 9520 FLATLANDS AVE, BROOKLYN, NY 11236-3710 |
| Document Number | 0000155790 |
| Instrument Date | Feb 24, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Jun 22, 2020 |
| Title Company | ATTORNEY ONLY |
| Name | Verified Name |
|---|---|
| Address | 9520 FLATLANDS AVE BROOKLYN NY 112363710, BROOKLYN, NY 11236-3710 |
| Document Number | 0000155790 |
|---|---|
| Date | May 26, 2020 |
| Instrument | 155790 |
| Name | CITIMORTGAGE |
|---|---|
| Type | Mortgage Company |
| Address | EWING, NJ 08618 |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount on Record |
| Rate Type | Fixed Rate |
|---|---|
| Rate | 3.87% |
The 2026 property tax bill for 9520 Flatlands Ave was $6,893, up 9.4% from the year before.
Source: New York City assessment roll, as of May 4, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Kings 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 | $6,893.00 (+9.43%) | $51,660 Land $10,680 Building $40,980 | $861,000 Land $178,000 Building $683,000 |
| 2025 | $6,299.00 | ||
| 2023 | $5,591.00 | $54,120 Land $10,680 Building $43,440 | $902,000 Land $178,000 Building $724,000 |
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 9520 Flatlands Ave; there have been 1 flood claim nearby since 1980.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1980) |
| Most Recent Claim | Jul 1980 · tidal / storm surge |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
The area around 9520 Flatlands 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 1,520 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Starry.
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