512 40th St, Brooklyn, NY 11232 Property Records

New York City property record for 512 40th St, Brooklyn, NY 11232

Property Summary

Property Type	Duplex
Details	2,216 sqft · built 1920
Lot Size	0.039 acres (1,713 sqft)
Owner	Company Name on File
Last Sale	$1,165,000 (Sep 2019)
Tax Bill	$9,941 (2025)
Deeds & Mortgages	May 2020 Mortgage Sep 2019 Sale & Mortgage
APN	`00917-0011`

Property Details

APN / Parcel Number

Primary APN	`00917-0011`
Alternative APNs	`0310009170011` `3-00917-0011`

Interior

Units	2 Units
Stories	2 Stories
Building Area	2,216 sqft Living Area
1st Floor Area	1,140 sqft

Exterior

Year Built	Built 1920
Effective Year Built	Effective 1920
Architectural Style	Duplex Single
Construction Type	Brick
Lot Area	1,713 sqft (0.039 acres)
Lot Dimensions	90.2 ft deep x 19 ft wide

Location & Zoning

Account Number	3-00917-0011
Street Address	512 40TH ST
City	BROOKLYN
State	NY
Zip	11232-3004
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R6A
Legal Block	917
Legal Lot Number	11
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	1
Census Block	1002
Census Tract	8800

Historic Designation

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

Historic District	Within the Sunset Park Historic District listed 1988 · 3,238 contributing resources · NRIS 88001464

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

Owner

512 40th St, a duplex, is owned by a company that bought it in September 2019.

Source: New York City records, as of May 4, 2026

Owner of Record	Company Name on File
Mailing Address	473 48TH ST, BROOKLYN, NY 11220-6842
Owner Type	Company
Vesting	Company

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Date	Document
May 13, 2020	Deed of Trust, Mortgage CATHAY BANK
Sep 20, 2019	Deed, Transfer CATHAY BANK

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Sep 20, 2019 · Amount on File
Deed Sale	Sep 20, 2019 · Amount on File
Deed Document Number	2019304281
Record Updated	Oct 29, 2026

May 2020: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KINGS (BROOKLYN) NY
Property Address	512 40TH ST, BROOKLYN, NY 11232-3004
Transaction Type	Mortgage
Record Updated	Feb 5, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	772 44TH ST 1ST 1ST, 11, BROOKLYN, NY 11220-1676

Mortgage

Document Number	0000146474
Date	May 13, 2020
Instrument	2020000146474

Lender

Name	CATHAY BANK
Type	Bank
Address	4148 MAIN ST, FLUSHING, NY 11355

Agreement

Amount	Amount on Record

September 2019: Deed, Transfer

Document Type	Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Sep 20, 2019
Property Address	512 40TH ST, BROOKLYN, NY 11232-3004
Document Number	0000304281
Instrument Date	Sep 18, 2019
Instrument	2019000304281
Transaction Type	Transfer
Record Updated	Jul 9, 2021

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name
Address	11 LEGION PL, 11, STATEN ISLAND, NY 10305-2802

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	473 48TH ST, BROOKLYN, NY 11220-6842

Mortgage

Document Number	0000304282
Date	Sep 20, 2019
Instrument	2019000304282

Lender

Name	CATHAY BANK
Type	Bank

Agreement

Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 512 40th St was $9,941, up 4.6% from the year before.

Source: New York City assessment roll, as of May 4, 2026

Property Jurisdictions

Type	Name
State	New York
County	Kings County
Municipality	New York City
Unified School District	New York City Department Of Education (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$81,060 (-1.24%) Land $25,080 Building $55,980	$1,351,000 (-1.24%) Land $418,000 Building $933,000
2025	$9,941.00 (+4.63%)	$82,080 Land $25,080 Building $57,000	$1,368,000 Land $418,000 Building $950,000
2024	$9,501.00 (+27.94%)
2023	$7,426.00	$85,620 Land $25,080 Building $60,540	$1,427,000 Land $418,000 Building $1,009,000

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.

Flood

FEMA has no flood map on file for 512 40th 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.

Wildfire

The area around 512 40th 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.

Drinking Water

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

Violations Reported to EPA

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.

Internet Providers

Source: FCC Broadband Data Collection, based on 1,129 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.

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