828 E 21st St, Brooklyn, NY 11210 Property Records

New York City property record for 828 E 21st St, Brooklyn, NY 11210

Property Summary

Property Type	Single Family Home
Details	2,316 sqft · built 1910
Lot Size	0.092 acres (4,000 sqft)
Owner	2 Individual Names on Record
Last Sale	$1,701,777 (Mar 2023)
Tax Bill	$8,755 (2025)
Deeds & Mortgages	Mar 2023 Sale & Mortgage Jun 2021 Sale & Mortgage
APN	`05241-0079`

Property Details

APN / Parcel Number

Primary APN	`05241-0079`
Alternative APNs	`1605052410079` `3-05241-0079`

Interior

Stories	2 Stories
Building Area	2,316 sqft Living Area
1st Floor Area	768 sqft

Exterior

Year Built	Built 1910
Effective Year Built	Effective 1910
Lot Area	4,000 sqft (0.092 acres)
Lot Dimensions	100 ft deep x 40 ft wide

Location & Zoning

Account Number	3-05241-0079
Street Address	828 E 21ST ST
City	BROOKLYN
State	NY
Zip	11210-1042
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R3X
Legal Block	5241
Legal Lot Number	79
Jurisdiction	KINGS (BROOKLYN) NY
Township / Civil Division	BROOKLYN
Census Block Group	1
Census Block	1001
Census Tract	76600

Owner

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

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

Owner of Record	2 Individual Names on Record
Mailing Address	828 E 21ST ST, BROOKLYN, NY 11210-1042
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Individual(s)

Deeds, Mortgages & Sale History

Date	Document
Mar 1, 2023	Deed, Transfer FIRST REPUBLIC BANK, A STATE BANK
Jun 24, 2021	Deed, Transfer FIRST REPUBLIC BANK

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Mar 1, 2023 · Amount on Record
Deed Sale	Mar 1, 2023 · Amount on Record
Prior Sale	Jun 24, 2021 · Amount on Record
Deed Document Number	202354614
Record Updated	Oct 29, 2026

March 2023: Deed, Transfer

Document Type	Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Mar 1, 2023
Property Address	828 E 21ST ST, BROOKLYN, NY 11210-1042
Document Number	0000054614
Instrument Date	Feb 27, 2023
Instrument	2023000054614
Transaction Type	Transfer
Record Updated	Mar 15, 2023

Transaction

Amount	Amount Recorded
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	219 FRANKLIN ST # ST1R, ST1R, BROOKLYN, NY 11222-1282

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	828 E 21ST ST, BROOKLYN, NY 11210-1042

Mortgage

Document Number	0000054615
Date	Mar 1, 2023
Instrument	2023000054615

Lender

Name	FIRST REPUBLIC BANK, A STATE BANK

Agreement

Amount	Amount Recorded

June 2021: Deed, Transfer

Document Type	Deed
Jurisdiction	KINGS (BROOKLYN) NY
Recording Date	Jun 24, 2021
Property Address	828 E 21ST ST, BROOKLYN, NY 11210-1042
Document Number	0000240778
Instrument Date	Jun 3, 2021
Instrument	2021000240778
Transaction Type	Transfer
Record Updated	Jun 29, 2021

Transaction

Amount	Amount Recorded
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	828 E 21ST ST, 828, BROOKLYN, NY 11210-1042

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	89 1ST PL, BROOKLYN, NY 11231-3499

Mortgage

Document Number	0000240779
Date	Jun 24, 2021
Instrument	2021000240779

Lender

Name	FIRST REPUBLIC BANK

Agreement

Amount	Amount Recorded

Tax Assessment & Valuation

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		$96,240 (-14.45%) Land $28,320 Building $67,920	$1,604,000 (-14.45%) Land $472,000 Building $1,132,000
2025	$8,755.00 (+4.79%)
2023	$8,355.00	$112,500 Land $28,320 Building $84,180	$1,875,000 Land $472,000 Building $1,403,000

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

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	1 (2021)
Claims Outside the SFHA	1 of 1
Most Recent Claim	Sep 2021 · Remnants Of Hurricane Ida

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

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 848 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
Optimum Cable · Fiber in parts of the area	940 / 35
T-Mobile Fixed Wireless	100 / 20

May also be available: Starry.

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