309 Adelphi St, Brooklyn, NY 11205 Property Records

New York City property record for 309 Adelphi St, Brooklyn, NY 11205 · Last verified May 2026

Property Summary

Property Type	Duplex
Details	4,080 sqft · built 1899
Lot Size	0.051 acres (2,200 sqft)
Owner	Individual Name on File
Tax Bill	$11,010 (2025)
Deeds & Mortgages	Sep 2017 Transfer
APN	`02104-0006`

Property Details

APN / Parcel Number

Primary APN	`02104-0006`
Alternative APNs	`0706021040006` `3-02104-0006`

Interior

Units	2 Units
Stories	3 Stories
Building Area	4,080 sqft Living Area
1st Floor Area	990 sqft

Exterior

Year Built	Built 1899
Effective Year Built	Effective 1899
Architectural Style	Duplex Single
Lot Area	2,200 sqft (0.051 acres)
Lot Dimensions	100 ft deep x 22 ft wide

Location & Zoning

Account Number	3-02104-0006
Street Address	309 ADELPHI ST
City	BROOKLYN
State	NY
Zip	11205-4602
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Legal Block	2104
Legal Lot Number	6
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	4
Census Block	4000
Census Tract	18100

Owner

Source: New York City records · APN 02104-0006

Assessment roll updated May 4, 2026 · Last verified May 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	309 ADELPHI ST, BROOKLYN, NY 11205-4602
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Record Updated	Jun 08, 2026

September 2017: Quit Claim Deed, Transfer

Document Type	Quit Claim Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Sep 12, 2017
Property Address	309 ADELPHI ST, BROOKLYN, NY 11205-4602
Document Number	0000338353
Instrument Date	Aug 25, 2017
Instrument	338353
Transaction Type	Transfer
Record Updated	Sep 18, 2017
Title Company	COMMONWEALTH LAND TITLE INSURANCE, COMMONWEALTH LAND TITLE INS

Transaction

Tax	$0.00
Additional	Quitclaim

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Relationship	Life Estate
Address	309 ADELPHI ST BROOKLYN NY 112054602, BROOKLYN, NY 11205-4602

Tax Assessment & Valuation

Source: New York City records · Assessment roll updated May 4, 2026 · Last verified May 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

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$289,560 (+2.4%) Land $34,920 Building $254,640	$4,826,000 (+2.4%) Land $582,000 Building $4,244,000
2025	$11,010.00 (+0.86%)
2023	$10,916.00	$282,780 Land $34,920 Building $247,860	$4,713,000 Land $582,000 Building $4,131,000

Flood & Wildfire

Source: FEMA National Flood Hazard Layer · FEMA OpenFEMA NFIP redacted claims and policies, census block group 360470181004, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Not on file
Nearby Flood Policies	3 in force
Nearby Flood Claims	1 (2012)
Most Recent Claim	Oct 2012, rainfall accumulation, Hurricane Sandy

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 1,496 locations within about half a mile of this property

Provider	Technology	Download / Upload (Mbps)
Verizon	Fiber	2,300 / 2,300
Spectrum	Cable	1,000 / 1,000
T-Mobile USA	Fixed Wireless	100 / 20

May also be available at this address: Starry, Verizon, Spectrum, Xchange Telecom, Optimum Communications. Availability varies by address; speeds are provider-advertised maximums, not measured.