New York City property record for 421 Clermont Ave, Brooklyn, NY 11238
| Property Type | Triplex |
|---|---|
| Details | 3,288 sqft · built 1899 |
| Lot Size | 0.049 acres (2,150 sqft) |
| Owner | Company Name on File |
| Tax Bill | $11,240 (2025) |
| Deeds & Mortgages | Jan 2022 Sale Jan 2022 Sale |
| APN | 01959-0011 |
| Primary APN | 01959-0011 |
|---|---|
| Alternative APNs |
|
| Units | 3 Units |
|---|---|
| Stories | 3 Stories |
| Building Area | 3,288 sqft Living Area |
| 1st Floor Area | 817 sqft |
| Year Built | Built 1899 |
|---|---|
| Effective Year Built | Effective 1899 |
| Architectural Style | Triplex |
| Lot Area | 2,150 sqft (0.049 acres) |
| Lot Dimensions | 100 ft deep x 21.5 ft wide |
| Account Number | 3-01959-0011 |
|---|---|
| Street Address | 421 CLERMONT AVE |
| City | BROOKLYN |
| State | NY |
| Zip | 11238-6610 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Local Zoning Code | R6B |
| Legal Block | 1959 |
| Legal Lot Number | 11 |
| Jurisdiction | KINGS (BROOKLYN) NY |
| Township / Civil Division | BROOKLYN |
| Census Block Group | 4 |
| Census Block | 4001 |
| Census Tract | 19900 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Fort Greene Historic District listed 1983 · 784 contributing resources · NRIS 83001691 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
421 Clermont Ave, a triplex, is owned by a company that acquired it in January 2022.
Source: New York City records, as of May 4, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 3119 NEWTOWN AVE, 1001, LONG ISLAND CITY, NY 11102-1393 |
| Owner Type | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jan 12, 2022 | Deed, Transfer |
| Jan 12, 2022 | Deed, Transfer |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jan 12, 2022 |
| Deed Sale | Jan 12, 2022 |
| Prior Sale | Aug 18, 2014 · Amount on File |
| Deed Document Number | 202219066 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | Jan 12, 2022 |
| Property Address | 421 CLERMONT AVE, BROOKLYN, NY 11238-6610 |
| Document Number | 0000019066 |
| Instrument Date | Dec 31, 2020 |
| Instrument | 2022000019066 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2022 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 3119 NEWTOWN AVE STE 1001, 3119, ASTORIA, NY 11102-1393 |
| Name | Verified Name |
|---|---|
| Address | 3119 NEWTOWN AVE STE 1001, 1001, ASTORIA, NY 11102-1393 |
| Mail Care Of | . MILTON J. PIRSOS CPA |
| Document Type | Deed |
|---|---|
| Jurisdiction | KINGS (BROOKLYN) NY |
| Recording Date | Jan 12, 2022 |
| Property Address | 421 CLERMONT AVE, BROOKLYN, NY 11238-6610 |
| Document Number | 0000019067 |
| Instrument Date | Dec 31, 2020 |
| Instrument | 2022000019067 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2022 |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 3119 NEWTOWN AVE STE 1001, 3119, ASTORIA, NY 11102-1393 |
| Name | Verified Name |
|---|---|
| Address | 3119 NEWTOWN AVE STE 1001, 1001, ASTORIA, NY 11102-1393 |
| Mail Care Of | . MILTON J. PIRSOS CPA |
The 2025 property tax bill for 421 Clermont Ave was $11,240, up 4.4% 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 | $237,120 (-12.89%) Land $46,080 Building $191,040 | $3,952,000 (-12.89%) Land $768,000 Building $3,184,000 | |
| 2025 | $11,240.00 (+4.44%) | $272,220 Land $46,080 Building $226,140 | $4,537,000 Land $768,000 Building $3,769,000 |
| 2024 | $10,762.00 (+4.18%) | ||
| 2023 | $10,330.00 | $216,060 Land $46,080 Building $169,980 | $3,601,000 Land $768,000 Building $2,833,000 |
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 Clermont Ave; 3 flood insurance policies are in force nearby.
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 | 3 in force |
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 421 Clermont 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 1,496 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Optimum, Skywire Networks, Starry.
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