3909 Ave K, Brooklyn, NY 11210 Property Records

New York City property record for 3909 Ave K, Brooklyn, NY 11210

Property Summary

Property Type	Duplex
Details	2,472 sqft · built 1930
Lot Size	0.092 acres (4,000 sqft)
Owner	Individual Name on File
Last Sale	$585,000 (Jun 2018)
Tax Bill	$9,217 (2025)
Deeds & Mortgages	Oct 2019 Loan Modification Oct 2019 Mortgage + 1 more
APN	`07787-0006`

Property Details

APN / Parcel Number

Primary APN	`07787-0006`
Alternative APNs	`2308077870006` `3-07787-0006`

Interior

Units	2 Units
Stories	2 Stories
Building Area	2,472 sqft Living Area
1st Floor Area	1,200 sqft

Exterior

Year Built	Built 1930
Effective Year Built	Effective 1930
Architectural Style	Duplex Single
Construction Type	Frame
Lot Area	4,000 sqft (0.092 acres)
Lot Dimensions	100 ft deep x 40 ft wide

Location & Zoning

Account Number	3-07787-0006
Street Address	3909 AVENUE K
City	BROOKLYN
State	NY
Zip	11210-4942
Property Category	Residential
Property Type	Residential > Multi-Unit > Duplex
Local Zoning Code	R4
Legal Subdivision	VANDERVEER PARK ADD 09
Legal Block	7787
Legal Lot Number	6
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	2
Census Block	2002
Census Tract	73400

Owner

3909 Ave K, a duplex, is owned and occupied by an individual who bought it in June 2018.

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

Owner of Record	Individual Name on File
Mailing Address	3909 AVENUE K, BROOKLYN, NY 11210-4942
Occupancy	Owner Occupied
Owner Type	Individual

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
Oct 25, 2019	Loan Modification, Mortgage · Conventional Mortgage NATIONWIDE MTG BANKERS INC
Oct 25, 2019	Deed of Trust, Mortgage · Conventional Mortgage NATIONWIDE MTG BANKERS INC
Jun 13, 2018	Grant Deed, Transfer · FHA Mortgage FRANKLIN FIRST FIN'L

Assessor's Deed Record

Deed Names	Name on Deed
Last Sale	Jun 13, 2018 · Amount on File
Deed Sale	Jun 13, 2018 · Amount on File
Prior Sale	Sep 1, 1999 · Amount on File
Deed Document Number	2018195712
Prior Transfer Date	Apr 30, 2018
Prior Transfer Doc	0000195712
Record Updated	Oct 29, 2026

October 2019: Loan Modification, Mortgage

Document Type	Loan Modification
Jurisdiction	KINGS (BROOKLYN) NY
Property Address	3909 AVENUE K, BROOKLYN, NY 11210-4942
Document Number	0000024963
Instrument Date	Oct 25, 2019
Transaction Type	Mortgage
Record Updated	Feb 6, 2020
Title Company	LIBERTY LAND ABSTRACT, LIBERTY LAND ABSTRACT LLC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3909 AVENUE K BROOKLYN NY 112104942, BROOKLYN, NY 11210-4942

Mortgage

Document Number	0000024963
Date	Jan 22, 2020
Instrument	24963

Lender

Name	NATIONWIDE MTG BANKERS INC
Address	MELVILLE, NY 11747

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jan 21, 2050

Interest

Rate Type	Fixed Rate
Rate	3.87%

October 2019: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	KINGS (BROOKLYN) NY
Property Address	3909 AVENUE K, BROOKLYN, NY 11210-4942
Document Number	0000006821
Instrument Date	Oct 25, 2019
Transaction Type	Mortgage
Record Updated	Jan 23, 2020
Title Company	LIBERTY LAND ABSTRACT, LIBERTY LAND ABSTRACT LLC

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3909 AVENUE K BROOKLYN NY 112104942, BROOKLYN, NY 11210-4942

Mortgage

Document Number	0000006821
Date	Jan 7, 2020
Instrument	6821

Lender

Name	NATIONWIDE MTG BANKERS INC
Address	MELVILLE, NY 11747

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jan 6, 2050

June 2018: Grant Deed, Transfer

Document Type	Grant Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Jun 13, 2018
Property Address	3909 AVENUE K, BROOKLYN, NY 11210-4942
Document Number	0000195712
Instrument Date	Apr 30, 2018
Instrument	195712
Transaction Type	Transfer
Record Updated	Jun 29, 2018
Title Company	RISING STAR SETTLEMENT SERVICES

Transaction

Amount	Amount on Record
Downpayment	Downpayment on Record
Loan-to-Value (LTV)	LTV on Record
Tax	$2,340.00
Amount Accuracy	Confirmed
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	3909 AVENUE K BROOKLYN NY 112104942, BROOKLYN, NY 11210-4942

Mortgage

Document Number	195713
Date	Jun 13, 2018
Instrument	195713

Lender

Name	FRANKLIN FIRST FIN'L
Type	Funding / Finance Company
Address	MELVILLE, NY 11747

Agreement

Type	FHA Mortgage
Amount	Amount on Record
Term	360 Months
Due	Jun 12, 2048

Tax Assessment & Valuation

The 2025 property tax bill for 3909 Ave K was $9,217.

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		$69,000 Land $15,420 Building $53,580	$1,150,000 Land $257,000 Building $893,000
2025	$9,217.00
2023	$8,691.00	$55,440 Land $15,420 Building $40,020	$924,000 Land $257,000 Building $667,000

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 3909 Ave K; there have been 2 flood claims nearby since 1978.

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	2 in force
Nearby Flood Claims	2 (1978–1979)
Most Recent Claim	Jan 1979 · rainfall accumulation

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 3909 Ave K 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 1,891 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

May also be available: Starry, T-Mobile.

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