# 8401 3rd Avenue, Brooklyn, NY 11209

BBL 3060250010 · Block 6025 · Lot 10 · BIN 3152747, 3340020  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/8401-3rd-avenue-3060250010  
Last updated: 2026-10-31 · Open-item counts as of 2026-10-31

Also recorded as: 304 84 St; 308 84 St

## Summary

8401 3rd Avenue (Brooklyn, NY 11209; tax lot BBL 3060250010) is a 6-unit mixed-use building with apartments and ground-floor commercial space (building class S9: mixed-use: dwelling with stores or offices, miscellaneous), built around 1923, on a 1,760 sq ft lot zoned R6B. City tax records list the owner as 304-308 REALTY. The Department of Finance's final market value for tax year 2027 is $1,098,000. As of October 31, 2026, NYC Open Data shows two DOB jobs with a permit issued but no sign-off, two active DOB violations, six open HPD violations and one OATH ticket with an unpaid balance. There were two 311 requests in the past 12 months and four HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

How to cite: NYC Property Facts, “8401 3rd Avenue, Brooklyn, NY 11209 (BBL 3060250010)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/8401-3rd-avenue-3060250010. Source: NYC Open Data.

## Open items

| Item | Count |
|---|---|
| Open DOB jobs (permit issued, not signed off) | 2 |
| Active DOB violations | 2 |
| Active ECB violations | 0 |
| Open HPD violations | 6 |
| OATH tickets with unpaid balance | 1 |

## Lot & building

- Owner of record: 304-308 REALTY
- Building class: S9 – Mixed-use: dwelling with stores or offices, miscellaneous
- Year built: 1923
- Floors: 4
- Units: 6 residential / 8 total
- Lot area: 1,760 sq ft · Building area: 6,512 sq ft
- Zoning: R6B, C2-3, BR
- Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), data as of 2026-11-02

## Tax assessment

- Tax year 2027 (final roll): market value $1,098,000, assessed value $494,100, tax class 2B
- Source: DOF Property Valuation and Assessment Data (https://data.cityofnewyork.us/d/8y4t-faws)

## Sales & deeds (ACRIS)

Deeds recorded with the City Register. amount 0 usually means a non-market transfer. lots_in_deed > 1 means the price covers several lots.

| Date | Status | Description | Source |
|---|---|---|---|
| 2001-11-15 | recorded (DEED) | DEED dated 2001-11-15 from LEONARDOS, MIHAIL G; LEONARDOS, DIMITRA to 304-308 REALTY LLC, no price stated ($0). | bnx9-e6tj |
| 1979-04-09 | recorded (DEED) | DEED dated 1979-04-09 from NIKOLAKAKOS DEMETRIOS to LEONARDOS DIMITRA; LEONARDOS MIHAIL G, no price stated ($0). | bnx9-e6tj |
| 1976-05-27 | recorded (DEED) | DEED dated 1976-05-27 from NIKOLAKAKOS DEMETRIOS; LAMBRAKOS ANDREAS to NIKOLAKAKOS DEMETRIOS, no price stated ($0). | bnx9-e6tj |
| 1972-09-29 | recorded (DEED) | DEED dated 1972-09-29 from MAFOUD TONY J; RODRIGUEZ ELOY to NIKOLAKAKOS DEMETRIOS; LAMBRAKOS ANDREAS, no price stated ($0). | bnx9-e6tj |
| 1971-04-12 | recorded (DEED) | DEED dated 1971-04-12 from WITEK ROSALIA; WITCH ROSE to MAFOUD TONY J; RODRIGUEZ ELOY, no price stated ($0). | bnx9-e6tj |

## Open DOB jobs and recent work permits

A DOB "job" is an application to do construction work. status "open" = a permit was issued but DOB has no record of final sign-off. Work permits are listed with type "work_permit" and their DOB permit status (they are not counted as open items).

| Date | Status | Description | Source |
|---|---|---|---|
| 2018-11-07 | open (Permit Entire) | DOB NOW job filing B00094836-I1 (Alteration): Permit Entire — permit issued, no sign-off on record. | w9ak-ipjd |
| 2018-11-14 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 340646554 (A3 – Minor alteration (one type of work)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. POINTING AND REPLACEMENT OF PARAPET WALL AS PER PLAN. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION. | ic3t-wcy2 |
| 2018-11-17 | n/a (ISSUED (initial)) | BIS work permit for job 340646554: Alteration / Other / general construction. Issued 2018-11-17, expires 2019-05-08. | ipu4-2q9a |
| 2018-11-08 | n/a (Permit Issued) | DOB NOW work permit for job B00094836-I1: Sidewalk Shed — PROPOSED INSTALLATION OF HEAVY DUTY SIDEWALK SHED FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION. LIVE LOAD 300…. Issued 2018-11-08, expires 2019-09-19. | rbx6-tga4 |

## Open violations (DOB, ECB, HPD)

status "open" = DOB violation category is ACTIVE, ECB violation status is ACTIVE, or HPD violation status is Open.

| Date | Status | Description | Source |
|---|---|---|---|
| 2018-04-06 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2016 INSPECTION REPORT. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2014-05-15 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2012 INSPECTION REPORT. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2020-07-07 | open (Nov Sent Out) | HPD class A violation (Class A): § 27-2045 ADM CODE POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE MAIL BOX .. AT PUBLIC HALL, 1st STORY. Open — not recorded as corrected. | wvxf-dwi5 |
| 2020-07-07 | open (Nov Sent Out) | HPD class A violation (Class A): § 27-2046.1 HMC: POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, IN A COMMON AREA OF A CLASS A MULTIPLE DWELLING NEAR INSPECTION CERTIFICATE OR PROVIDE NOTICE TO TENANTS IN A PRIVATE DWELLING. AT …. Open — not recorded as corrected. | wvxf-dwi5 |
| 2020-07-07 | open (Nov Sent Out) | HPD class A violation (Class A): § 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLLOWED WHEN A GAS LEAK IS SUSPECTED AT PUBLIC HALL. Open — not recorded as corrected. | wvxf-dwi5 |
| 2020-07-07 | open (Nov Sent Out) | HPD class A violation (Class A): § 27-2104 ADM CODE POST AND MAINTAIN A PROPER SIGN ON WALL OF ENTRANCE STORY SHOWING THE REGISTRATION NUMBER ASSIGNED BY THE DEPARTMENT AND THE ADDRESS OF THE BUILDING. AT PUBLIC HALL, 1st STORY. Open — not recorded as corrected. | wvxf-dwi5 |
| 2019-11-21 | open (Nov Certified Late) | HPD class C violation (Class C): § 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS HEATING SYSTEM MISSING ON WALL AT PUBLIC HALL, 1st STORY. Open — not recorded as corrected. | wvxf-dwi5 |
| 2015-04-20 | open (False Certification) | HPD class C violation (Class C) in apt 6: SECTION 27-2043.1 HMC INSTALL THE MISSING OR REPAIR/REPLACE THE DEFECTIVE WINDOW GUARD(S) IN ACCORDANCE WITH THE SPECIFICATIONS OF THE NEW YORK CITY HEALTH CODE SECTION 24 RCNY CHAPTER 12. WG TO INSTALL = 1; WG TO REPLACE = 5; WG TO REPAIR = 5; MISSING-NO ONE…. Open — not recorded as corrected. | wvxf-dwi5 |

## OATH tickets with unpaid balance or pending

status "open" = balance due > $0 after a decision (cases awaiting a hearing are "pending"). default=true means the respondent did not appear.

| Date | Status | Description | Source |
|---|---|---|---|
| 2026-03-25 | open (DOCKETED · DEFAULTED) | OATH ticket from Dept Of Transportation: OP OF A S W CAFE RDWY CAFE W O A LICENSE REVOC CONSENT 1ST OFFENSE. Unpaid balance $500. Respondent defaulted (did not appear). | jz4z-kudi |

## Complaints (HPD since 2019, 311 last 12 months)

Complaints are reports, not violations. status mirrors the published complaint / request status.

| Date | Status | Description | Source |
|---|---|---|---|
| 2020-06-27 | closed (CLOSE) | HPD complaint (apt 3B): Electric – Power Outage. The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. | ygpa-z7cr |
| 2019-11-17 | closed (CLOSE) | HPD complaint (apt 1): Heat/Hot Water – Entire Building. The Department of Housing Preservation and Development responded to a complaint of no heat or hot water and was advised by a tenant in the building that heat and hot water had been restored. If the c… | ygpa-z7cr |
| 2019-10-31 | closed (CLOSE) | HPD complaint (apt 5): Heat/Hot Water – Entire Building. The Department of Housing Preservation and Development responded to a complaint of no heat or hot water and was advised by a tenant in the building that heat and hot water had been restored. If the c… | ygpa-z7cr |
| 2019-01-13 | closed (CLOSE) | HPD complaint (apt 4): Heat/Hot Water – Apartment Only. The Department of Housing Preservation and Development was not able to gain access to your apartment or others in the building to inspect for a lack of heat or hot water. The complaint has been close… | ygpa-z7cr |
| 2026-08-12 | closed (Closed) | 311 request to DOB: Elevator – Elevator - Single Device On Property/No Alternate Service. | erm2-nwe9 |
| 2026-02-19 | closed (Closed) | 311 request to DHS: Homeless Person Assistance – Chronic. | erm2-nwe9 |

## Owners & contacts

Owner of record comes from city tax records (PLUTO) and can lag behind recent sales.

| Date | Status | Description | Source |
|---|---|---|---|
| 2026-08-24 | current | City tax records (PLUTO) list the owner as 304-308 REALTY. | 64uk-42ks |
| 2001-11-15 | recorded | Grantee (buyer) on the most recent deed (DEED, 2001-11-15). | 636b-3b5g |
| 2026-08-26 | current_registration | HPD registration contact: Agent Nikolaos Leonardos (DAFNONAS ESTATES LTD), business city Brooklyn. | feu5-w2e2 |
| 2026-08-26 | current_registration | HPD registration contact: HeadOfficer Nikolaos Leonardos, business city Brooklyn. | feu5-w2e2 |
| 2026-08-26 | current_registration | HPD registration contact: SiteManager Nikolaos Leonardos. | feu5-w2e2 |
| 2026-08-26 | current_registration | HPD registration contact: CorporateOwner (304-308 REALTY LLC), business city Brooklyn. | feu5-w2e2 |

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Independent site. Data from NYC Open Data; not affiliated with the City of New York. Not a title search or official record; verify with the issuing agency. JSON: https://nycpropertyfacts.com/api/v1/property/3060250010