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8318 3rd Avenue, Brooklyn, NY 11209

BBL 3060160045 (Borough 3, Block 6016, Lot 45) · BIN 3152393 · Last updated:

Also recorded in city data as: 831815 3 Ave

Summary · as of October 31, 2026

8318 3rd Avenue (Brooklyn, NY 11209; tax lot BBL 3060160045) is a 2-unit mixed-use building with apartments and ground-floor commercial space (building class S2: mixed-use: two-family home with one store or office), built around 1921, on a 1,755 sq ft lot zoned R6B. City tax records list the owner as CASTIELLO MARIO. The Department of Finance's final market value for tax year 2027 is $1,649,000. As of October 31, 2026, NYC Open Data shows two DOB jobs with a permit issued but no sign-off, one active DOB violation and one OATH ticket with an unpaid balance. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
CASTIELLO MARIO
Building class
S2 · Mixed-use: two-family home with one store or office
Year built · units
1921 · 2 res.
Lot area · zoning
1,755 sq ft · R6B
Market value (DOF)
$1,649,000 FY2027
Last priced deed
—
BBL
3060160045
BIN
3152393

How to cite: NYC Property Facts, “8318 3rd Avenue, Brooklyn, NY 11209 (BBL 3060160045)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/8318-3rd-avenue-3060160045. Source: NYC Open Data.

Lot & building

Basic facts about the tax lot and building from the city’s PLUTO database.

Owner (as listed by the city)
CASTIELLO MARIOThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S2 – Mixed-use: two-family home with one store or officeThe Department of Finance’s category for what kind of building this is.
Land use
Mixed residential & commercialCity Planning’s broad category of how the lot is used.
Year built
1921Often an estimate for older buildings. Major alteration recorded: 2002.
Floors
3
Units
2 residential / 3 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
1,755 sq ft (19.5 ft × 90 ft)
Building floor area
3,411 sq ft (incl. 1,216 sq ft commercial)
Zoning
R6B, C2-3, BRThe zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
Built vs. allowed density (FAR)
1.94 built / 2.00 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).
Identifiers
BBL 3060160045 (Borough 3, Block 6016, Lot 45) · BIN 3152393BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-02; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01

Tax assessment

How the Department of Finance values this lot for property tax.

Market value (tax year 2027, final roll)
$1,649,000The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.
Assessed value
$98,940The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$59,305Assessed value minus any exemptions.
Tax class
Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
Tax yearRollMarket valueAssessed valueTax class
2027Final$1,649,000$98,9401
2026Final$1,893,000$113,5801
2025Final$1,978,000$118,6801

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02

Sales & deed history 3

Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.

DateTypePriceSeller (grantor)Buyer (grantee)Doc ID
1994-10-13DEED$0 / not statedPiotrowski, Joseph C; Piotrowski, Frank J; Gannon, JuliaCastiello, Mario; Castiello, RomanaFT_3200004488020
1990-11-12DEED$0 / not statedGannon, Julia; Kazimierz,Joseph P/Ex Of; Piotrowski, Joseph Kaka; Piotrowski, Joseph C; Piotrowski, Frank JPiotrowski, Frank J; Piotrowski, Joseph C; Gannon, JuliaFT_3420001585842
1971-06-30DEED$0 / not statedScalzo Frank Decd; Scalzo Frances; Plotcowski Louise Under Last Will And Testament OfPlotcowski Joseph K; Plotcowski LouiseBK_7130049101154

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02

DOB job filings 2 open of 7

A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.

StatusJob #TypeFiledEst. cost
Permitted, not signed off
Permit Entire · 2025-07-15
B01255822-I1
DOB NOW
Alteration2025-07-15$9,000
Permitted, not signed off
PERMIT ISSUED - ENTIRE JOB/WORK · 2002-09-20
301392605
BIS
A3 – Minor alteration (one type of work)2002-08-09$3,500
Not open
SIGNED OFF · 2009-01-29
310037867
BIS
A3 – Minor alteration (one type of work)2007-10-15$10,000
Not open
SIGNED OFF · 2006-03-14
302065244
BIS
A1 – Major alteration (changes use, egress or occupancy)2006-01-03$1,000
Not open
SIGNED OFF · 2005-11-07
300648681
BIS
A1 – Major alteration (changes use, egress or occupancy)1997-06-23$1
Not open
SIGNED OFF · 2005-07-20
300647156
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1997-06-16$20,200
Not open
SIGNED OFF · 2005-08-02
300512434
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1996-04-04$20,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31

Work permits 15

Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.

IssuedExpiresJob #WorkPermit status
2025-07-152026-02-25B01255822-I1
DOB NOW
Sidewalk Shed
INSTALLATION OF 300PSF SIDEWALK SHED AS PER PLANS. ALL EQUIPMENT SHALL COMPLY WITH CH #33 OF THE NYC CODE 2022. NO CHANGE IN USE, OCCUPANCY OR EGRESS UNDER THIS
Permit Issued
2007-10-162008-04-01310037867
BIS
Alteration / Other / general constructionISSUED (initial)
2006-01-062006-05-24302065244
BIS
AlterationISSUED (initial)
2005-07-082006-05-24300648681
BIS
AlterationISSUED (renewal)
2003-12-172004-05-24300647156
BIS
Equipment work / Mechanical/HVACISSUED (initial)
2003-12-172004-05-24300647156
BIS
Equipment work / Other / general constructionISSUED (initial)
2003-12-172004-06-12300647156
BIS
Equipment work / Fire suppressionISSUED (initial)
2003-12-172004-12-16300647156
BIS
Plumbing / PlumbingISSUED (initial)
2002-09-202003-12-13301392605
BIS
Alteration / Other / general constructionISSUED (initial)
2002-01-032002-05-24300648681
BIS
AlterationISSUED (renewal)
1997-09-121998-05-24300648681
BIS
AlterationISSUED (initial)
1996-05-291996-07-14300512434
BIS
Plumbing / PlumbingISSUED (initial)

Showing 12 of 15 records. The API and the source dataset have the full list.

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-02; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 1 active of 4

Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).

StatusIssuedTypeDescriptionNumber
Active
V-DOB VIOLATION - ACTIVE
1993-08-16LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV081693LL629130885
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1997-09-16LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*091697LL6291242701
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1994-06-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*060194LL629117311
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1993-06-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*060193LL629117310

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-02

ECB violations (DOB) 0 active of 2

DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.

StatusIssuedSeverityWhat it was forPenalty / paid / balanceECB #
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2025-08-05CLASS - 2AT 3:45AM OBSERVED 3 STORY BUILDING WITH SIDEWALK SHED INSTALLED AT EXP# 1 THAT WAS NOT ILLUMINATED AS STIPULATED IN BC3307.6.4.8 CREATES HAZARDOUS CONDITIONS FOR PEDESTRIANS OF SLIPS AND TRIPS DUE TO INADEQU$0 / $0 / $039543237M
Resolved
Hearing: STIPULATION/IN-VIO · Certification: CERTIFICATE ACCEPTED
1996-11-18Non-HazardousWORK WITHOUT A PERMIT WORK NOTED HAVING ERECTED A WOOD EXTENSION AT REAR OF 1SR FLOOR APPROX 10'X20' FEET WITHOUT A PERMIT. REMEDY: OBTAIN A PERMIT IF FEASIBLE OR REMOVE EXTENSION AT REAR.$350 / $350 / $034147692H

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02

OATH tickets (all agencies) 1 unpaid of 23

Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.

StatusDateAgencyChargeRespondentImposed / paid / balanceTicket #
Unpaid balance Default
DOCKETED · DEFAULTED
2025-04-05Sanitation OthersINSUFFICIENT RECEPTACLES 1ST OCCURRENCECASTIELLO MARIO$300 / $0 / $300049105840J
No balance due
HEARING COMPLETED · IN VIOLATION
2025-08-05Dept. Of BuildingsPEDESTRAIN PROTECTION DOES NOT MEET CODE SPECIFICATIONSCASTIELLO MARIO$0 / $0 / $0039543237M
No balance due
PAID IN FULL
2024-10-10Sanitation OthersIMPROPER RECEPTACLE ALL BUSINESSES 1STINAKA$50 / $50 / $0048547857H
No balance due
PAID IN FULL
2024-08-22Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETCASTIELLO MARIO$50 / $50 / $0048558804H
No balance due Default
PAID IN FULL · DEFAULTED
2024-07-08Fire Department Of NycRECORDKEEPINGINAKA JAPAN 8318$1,000 / $1,098 / $0014132861M
No balance due Default
PAID IN FULL · DEFAULTED
2024-06-24Sanitation OthersLOOSE RUBBISH 1ST OCCURRENCEINAKA JAPANESE FUSION$80 / $80 / $0048255299H
No balance due
HEARING COMPLETED · IN VIOLATION
2021-01-27Fire Department Of NycRECORDKEEPINGINAKA JAPANESE 8318 INC$0 / $0 / $0011751485L
No balance due
HEARING COMPLETED · DISMISSED
2016-02-22Dos - Enforcement AgentsSTORAGE OF RECEPTACLESMARIO— / — / —041317634M
No balance due
HEARING COMPLETED · DISMISSED
2015-04-03Dos - Enforcement AgentsSTORAGE OF RECEPTACLESMARIO— / — / —041459627H
No balance due
HEARING COMPLETED · DISMISSED
2015-02-07IMPROPER DISPOSAL BEDDING 1ST OFFENSECASTIELLO— / — / —0184694328
No balance due
HEARING COMPLETED · IN VIOLATION
2014-11-05Fire Department Of NycAFFIDAVITS, DESIGN INSTALLATION DOCUMENTS, AND OTHER DOCUMENTATIONINAKA 83 SUHI CORP.— / — / —011366956H
No balance due
HEARING COMPLETED · IN VIOLATION
2012-05-03Fire Department Of NycPOSTING OF PERMITS AND RECORD KEEPING8318 IMPERIAL CORP. NGI— / — / —011248703M

Showing 12 of 23 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-02

HPD registration & contacts

Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.

No HPD registration found. Registration is required for buildings with 3 or more apartments (and for 1–2 family homes where neither the owner nor family lives there).

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02

HPD housing-code violations 0 open of 0

Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-02; data as of 2026-11-02

HPD complaints 0

Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-02; data as of 2026-11-02

311 requests (last 12 months) 0

Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.

No records found in this dataset for this lot.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02

Nearby properties

On 3 Ave

Same tax block (6016)

All properties on 3 Ave, Brooklyn · All of Brooklyn 11209 (Bay Ridge)

Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs