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3509 Avenue S, Brooklyn, NY 11234

BBL 3085020007 (Borough 3, Block 8502, Lot 7) · BIN 3240110 · Last updated: · Marine Park-Mill Basin-Bergen Beach · ZIP 11234

Also recorded in city data as: 3505 Ave S

Summary · as of November 6, 2026

3509 Avenue S (Brooklyn, NY 11234; tax lot BBL 3085020007) is a 1-unit mixed-use building with apartments and ground-floor commercial space (building class S1: mixed-use: one-family home with one store or office), built around 1928, on a 1,679 sq ft lot zoned R4. City tax records list the owner as YOON & J LLC, A NEW YORK LIMITED LIABILI TY COMPANY; per ACRIS, a deed to this owner dated April 6, 2016 lists a price of $560,000. The Department of Finance's final market value for tax year 2027 is $1,458,000. As of November 6, 2026 (limited by DOB Job Application Filings (BIS); other open-item sources were confirmed later), NYC Open Data shows three active DOB violations. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
YOON & J LLC, A NEW YORK LIMITED LIABILI TY COMPANY
Building class
S1 · Mixed-use: one-family home with one store or office
Year built · units
1928 · 1 res.
Lot area · zoning
1,679 sq ft · R4
Market value (DOF)
$1,458,000 FY2027
Last priced deed
$560,000 · 2016-04-06
BBL
3085020007
BIN
3240110

How to cite: NYC Property Facts, “3509 Avenue S, Brooklyn, NY 11234 (BBL 3085020007)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/3509-avenue-s-3085020007. 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)
YOON & J LLC, A NEW YORK LIMITED LIABILI TY COMPANYThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
S1 – Mixed-use: one-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
1928Often an estimate for older buildings. Major alteration recorded: 2015.
Floors
2
Units
1 residential / 2 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
1,679 sq ft (19.75 ft × 85 ft)
Building floor area
1,778 sq ft (incl. 889 sq ft commercial)
Zoning
R4, C1-2The 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)
1.06 built / 1.00 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 3085020007 (Borough 3, Block 8502, Lot 7) · BIN 3240110BBL 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; last loaded 2026-11-07; Building Footprints — city dataset updated 2026-10-25; last loaded 2026-11-01

Tax assessment

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

Market value (tax year 2027, final roll)
$1,458,000The 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
$87,480The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$73,008Assessed 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$1,458,000$87,4801
2026Final$1,345,000$80,7001
2025Final$1,252,000$75,1201

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-07

Sales & deed history 8

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
2016-04-06DEED$560,000Dai, Xin LongYoon & J Llc, A New York Limited Liability Company2016042700259001
2015-05-21CORRD$0 / not statedDai, Xin LongDai, Xin Long2015052100576001
2006-05-03DEED$872,500Four Star Holding Corp.Dai, Xin Long2006050800420001
1984-12-31DEED$0 / not statedPide Realty CorpFour Star Hldng CorpFT_3340001090634
1980-01-08DEED$0 / not statedVinti Angela; Poggio Marialaina; Vinti Vincent; Poggio Vincent JRide Realty CorpBK_8030113200058
1976-04-12DEED$0 / not statedCalcavecchia Anna; Calcavecchia JosephVinti Angela; Poggio Maria L; Vinti Vincent; Poggio Vincent JBK_7630084001006
1973-05-02DEED$0 / not statedScopellite RoseCalcavecchia Joseph; Calcavecchia AnnaBK_7330062901954
1967-11-14DEED$0 / not stated
one deed covering 2 lots; price is for all of them
Scopellite RoseCalcavecchia Joseph; Calcavecchia AnnaBK_6730057900084

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-07; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-07; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-07

DOB job filings 0 open of 5

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
Not open
COMPLETED · 2015-04-09
320622420
BIS
SI2014-12-29—
Not open
SIGNED OFF · 2016-02-18
320597403
BIS
A1 – Major alteration (changes use, egress or occupancy)2014-12-16$100,000
Not open
SIGNED OFF · 2000-12-18
301125468
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2000-06-28$35,000
Not open
SIGNED OFF · 2008-04-16
300857936
BIS
A1 – Major alteration (changes use, egress or occupancy)1999-05-03$3,000
Not open
SIGNED OFF · 1999-09-08
300857008
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)1999-04-28$3,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-06; last loaded 2026-11-07; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; last loaded 2026-11-06; a later sync attempt failed on 2026-11-07; showing the last successful load

Work permits 8

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
2015-08-252016-08-24320597403
BIS
Plumbing / PlumbingISSUED (initial)
2015-08-252016-01-23320597403
BIS
AlterationISSUED (initial)
2000-10-032001-10-03301125468
BIS
Plumbing / PlumbingISSUED (initial)
2000-08-182001-04-01301125468
BIS
Equipment work / Other / general constructionISSUED (initial)
2000-08-182001-04-01301125468
BIS
Equipment work / Mechanical/HVACISSUED (initial)
2000-02-292000-03-24300857936
BIS
AlterationISSUED (initial)
1999-06-242000-06-23300857008
BIS
Plumbing / PlumbingISSUED (initial)
1999-06-042000-03-24300857008
BIS
Equipment work / Other / general constructionISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-06; last loaded 2026-11-07; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07

DOB violations 3 active of 8

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
VW-VIOLATION WORK WITHOUT PERMIT - ACTIVE
2000-02-28C-CONSTRUCTION OTHER OPTIONALWORK WITHOUT A PERMIT. WORK NOTED: ERECTED PARTITIONS THROUGHOUT CREATING OFFICE SPACE, 2ND FLOOR REMEDY: OBTAIN PERMITS OR RESTORE TO PRIOR LAWFUL USEVW022800C18M01
Active
VW-VIOLATION WORK WITHOUT PERMIT - ACTIVE
1999-05-18C-CONSTRUCTION OTHER OPTIONALWORK WITHOUT A PERMIT: WORK NOTED: DEMOLISHED INTERIOR PARTITIONS AT 2 ND FLOOR LEVEL AND INSTALLATION OF NEW SHEET ROCK PARTITIONS & METAL F RAMING REMEDY: STOP ALL WORK. OBTAIN ALL NECESSARY PERMITS, CONTACT DEPT OF BLDGS BEFORE RESUMING ANY CONSTRUCTIONVW051899C18RR01
Active
V-DOB VIOLATION - ACTIVE
1995-08-29C-CONSTRUCTION OTHER OPTIONALV082995C18N01
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2015-03-03LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORTV*030315LBLVIO07856
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2014-05-15LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2012 INSPECTION REPORTV*051514LBLVIO15338
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2011-12-13LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2010 INSPECTION REPORTV*121311LBLVIO15570
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2009-12-31LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDV*123109LBLVIO18045
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1995-08-29ES-ELECTRIC SIGNS NONEV*082995ES1802N

Source: DOB Violations — city dataset updated 2026-11-06; last loaded 2026-11-07

ECB violations (DOB) 0 active of 3

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: CURED/IN-VIO · Certification: CURE ACCEPTED
1999-05-18Non-HazardousWORK WITHOUT A PERMIT WORK NOTED DEMOLISHED INTERIOR PARTITIONS AT 2ND FL LEVEL AND INSTALLATION OF NEW SHEET ROCK PARTITIONS METAL FRAMING REMEDY STOP ALL WORK OBTAIN ALL NECESSARY PERMITS CONTACT DEPT OF BLDG$0 / $0 / $034209799Z
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2000-02-28Non-HazardousWORK WITHOUT A PERMIT. WORK NOTED ERETECED PARTITIONS THROUGHOUT CREATING OFFICES SPACE SECOND FLOOR. REMEDY: OBTAIN PERMITS OR RESTORE TO PRIOR LAWFUL USE.$250 / $250 / $034242510N
Resolved
Hearing: WRITTEN OFF · Certification: CERTIFICATE ACCEPTED
Written off refers to the penalty, not the violation.
1995-08-29Non-HazardousOCCUPANCY CONTRARY TO THAT ALLOWED BY THE BUILDING DEPARTMENT RECORDS: ENTIRE 2ND FLOOR OCCUPIED AS BEATY SALON. REMEDY: DISCONTINUE ILLEGAL OCCUPANCY. WORK WITHOUT A PERMIT (WORK NOTED) HAVING REMOVED AND RE L$2,000 / $0 / $034130208X

Source: DOB ECB Violations — city dataset updated 2026-11-06; last loaded 2026-11-07

OATH tickets (all agencies) 0 unpaid of 3

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 #
No balance due
PAID IN FULL
2003-02-14$50 / $50 / —0117453472
No balance due
PAID IN FULL · IN VIOLATION
2000-02-28Dept. Of BuildingsWORK WITHOUT A PERMIT.OWNER OF 3509 AVE S$250 / $250 / —034242510N
No balance due
WRITTEN OFF · WRITTEN OFF
1995-08-29Dept. Of BuildingsWORK WITHOUT A PERMIT.PIDE REALTY CORP$2,000 / $0 / $0034130208X

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-07; last loaded 2026-11-07

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 2026-11-04; last loaded 2026-11-07; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-07

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 2026-11-06; last loaded 2026-11-07

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 2026-11-07; last loaded 2026-11-07

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 2026-11-07; last loaded 2026-11-07

Nearby properties

Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers.

More in Marine Park-Mill Basin-Bergen Beach: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on Ave S

Same tax block (8502), closest first

All properties on Ave S, Brooklyn · Brooklyn 11234

Open-item counts as of November 6, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs