343 Adelphi St, Brooklyn, NY 11238 Property Records

New York City property record for 343 Adelphi St, Brooklyn, NY 11238

Property Summary

Property Type	Duplex
Details	3,560 sqft · built 1910
Lot Size	0.049 acres (2,150 sqft)
Owner	2 Individual Names on File
Last Sale	$4,650,000 (Nov 2022)
Tax Bill	$13,893 (2025)
Deeds & Mortgages	Nov 2022 Sale & Mortgage Aug 2021 Mortgage + 1 more
APN	`02121-0012`

Property Details

APN / Parcel Number

Primary APN	`02121-0012`
Alternative APNs	`0706021210012` `3-02121-0012`

Interior

Units	2 Units
Stories	3 Stories
Building Area	3,560 sqft Living Area
1st Floor Area	1,349 sqft

Exterior

Year Built	Built 1910
Effective Year Built	Effective 1910
Architectural Style	Duplex Single
Lot Area	2,150 sqft (0.049 acres)
Lot Dimensions	100 ft deep x 20.8 ft wide

Location & Zoning

Account Number	3-02121-0012
Street Address	343 ADELPHI ST
City	BROOKLYN
State	NY
Zip	11238-1056
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R6B
Legal Block	2121
Legal Lot Number	12
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	4
Census Block	4003
Census Tract	18100

Historic Designation

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.

Owner

343 Adelphi St, a duplex, is owned by two individuals who bought it in November 2022.

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

Owner of Record	2 Individual Names on File
Mailing Address	105 GREENE AVE, BROOKLYN, NY 11238-1009
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.

Deeds, Mortgages & Sale History

Date	Document
Nov 16, 2022	Deed, Transfer CITIBANK, NA
Aug 12, 2021	Deed of Trust, Mortgage MORTGAGE ELECTRONIC REGISTRATION SYSTEMS
Mar 22, 2018	Deed of Trust, Mortgage JPMORGAN CHASE BANK NA

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 16, 2022 · Amount on File
Deed Sale	Nov 16, 2022 · Amount on File
Prior Sale	Sep 1, 1998 · Amount on File
Deed Document Number	2022425076
Prior Transfer Date	Nov 12, 2003
Prior Transfer Doc	0000232494
Record Updated	Oct 29, 2026

November 2022: Deed, Transfer

Document Type	Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Nov 16, 2022
Property Address	343 ADELPHI ST, BROOKLYN, NY 11238-1056
Document Number	0000425076
Instrument Date	Oct 18, 2022
Instrument	2022000425076
Transaction Type	Transfer
Record Updated	Nov 22, 2022

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	343 ADELPHI ST, 343, BROOKLYN, NY 11238-1056

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	105 GREENE AVE, BROOKLYN, NY 11238-1009

Mortgage

Document Number	0000425078
Date	Nov 16, 2022
Instrument	2022000425078

Lender

Name	CITIBANK, NA

Agreement

Amount	Amount on Record

August 2021: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KINGS (BROOKLYN) NY
Property Address	343 ADELPHI ST, BROOKLYN, NY 11238-1056
Transaction Type	Mortgage
Record Updated	Aug 17, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0000316222
Date	Aug 12, 2021
Instrument	2021000316222

Lender

Name	MORTGAGE ELECTRONIC REGISTRATION SYSTEMS
Address	1901 E VOORHEES ST, DANVILLE, IL 61834

Agreement

Amount	Amount on Record

March 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KINGS (BROOKLYN) NY
Property Address	343 ADELPHI ST, BROOKLYN, NY 11238-1056
Transaction Type	Mortgage
Record Updated	Mar 1, 2021

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	343 ADELPHI ST, BROOKLYN, NY 11238-1056

Mortgage

Document Number	0000098246
Date	Mar 22, 2018
Instrument	2018000098246

Lender

Name	JPMORGAN CHASE BANK NA
Type	Bank
Address	1111 POLARIS PKWY, COLUMBUS, OH 43240

Agreement

Amount	Amount on Record

Tax Assessment & Valuation

The 2025 property tax bill for 343 Adelphi St was $13,893.

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		$189,360 Land $37,080 Building $152,280	$3,156,000 Land $618,000 Building $2,538,000
2025	$13,893.00
2023	$12,967.00	$215,880 Land $37,080 Building $178,800	$3,598,000 Land $618,000 Building $2,980,000

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 343 Adelphi St; there have been 1 flood claim nearby since 2012.

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
Nearby Flood Claims	1 (2012)
Most Recent Claim	Oct 2012 · Hurricane Sandy

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.

Wildfire

The area around 343 Adelphi 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 1,496 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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