435a Classon Avenue, Brooklyn, NY 11238

Name: NYC Open Data records for 435a Classon Avenue, Brooklyn, NY 11238
Creator: NYC Property Facts
License: https://opendata.cityofnewyork.us/overview/#termsofuse

BBL 3019730010 (Borough 3, Block 1973, Lot 10) · BIN 3056527 · Last updated: October 31, 2026

Summary · as of October 31, 2026

435a Classon Avenue (Brooklyn, NY 11238; tax lot BBL 3019730010) is a two-family home (building class B3: two-family home converted from one-family), built around 1899, on a 1,260 sq ft lot zoned R6B. City tax records list the owner as ROSENBERG ASTORIA LLC; per ACRIS, a deed to this owner dated January 30, 2020 lists a price of $325,000. The Department of Finance's final market value for tax year 2027 is $2,591,000. As of October 31, 2026, NYC Open Data shows no open DOB jobs, active DOB/ECB violations, open HPD violations or unpaid OATH tickets for this lot. There was one 311 request in the past 12 months and no HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record: ROSENBERG ASTORIA LLC
Building class: B3 · Two-family home converted from one-family
Year built · units: 1899 · 2 res.
Lot area · zoning: 1,260 sq ft · R6B
Market value (DOF): $2,591,000 FY2027
Last priced deed: $325,000 · 2020-01-30
BBL: 3019730010
BIN: 3056527

0Open DOB jobs (permit issued, no sign-off)
0Active DOB violations
0Active ECB violations
0Open HPD violations
0OATH tickets with unpaid balance

How to cite: NYC Property Facts, “435a Classon Avenue, Brooklyn, NY 11238 (BBL 3019730010)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/435a-classon-avenue-3019730010. 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): ROSENBERG ASTORIA LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class: B3 – Two-family home converted from one-familyThe Department of Finance’s category for what kind of building this is.
Land use: One- & two-family buildingsCity Planning’s broad category of how the lot is used.
Year built: 1899Often an estimate for older buildings. Major alteration recorded: 2014.
Floors: 3
Units: 2 residential / 2 totalResidential units are apartments; total includes stores and offices.
Buildings on lot: 1
Lot size: 1,260 sq ft (15.75 ft × 80 ft)
Building floor area: 2,470 sq ft
Zoning: R6BThe zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR): 1.96 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 3019730010 (Borough 3, Block 1973, Lot 10) · BIN 3056527BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Agency lookups: DOB BIS · ZoLa (zoning map) · ACRIS

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-01; 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): $2,591,000The 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: $155,460The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final): $31,003Assessed value minus any exemptions.
Tax class: Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)

Tax year	Roll	Market value	Assessed value	Tax class
2027	Final	$2,591,000	$155,460	1
2026	Final	$2,975,000	$178,500	1
2025	Final	$2,350,000	$141,000	1

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-01

Sales & deed history 11

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.

Date	Type	Price	Seller (grantor)	Buyer (grantee)	Doc ID
2020-01-30	DEED	$325,000	Maseco Llc; Rosenberg Astoria Llc	Rosenberg Astoria Llc	2020020700769001
2015-05-29	DEED	$2,275,000	Market Impact Llc	Rosenberg Astoria Llc; Maseco Llc	2015060400197001
2014-09-11	CORRD	$0 / not stated	Getmore Realty Inc	Market Impact Llc	2014091600981001
2014-05-15	DEED	$600,000	Getmore Realty Inc.	Market Impact Llc	2014051900403001
2013-03-14	DEED	$355,000	Johnson, James	Getmore Realty Inc	2013031500788001
2006-01-20	DEED	$1,000,000	Turenne, Jean	Johnson, James	2006020201325001
2004-08-20	DEED	$560,500	Sterling State, Inc	East End Properties, Llc	2004100101904001
2004-08-19	DEED	$660,000	East End Properties, Llc	Turenne, Jean	2004100101904002
2004-01-29	DEED	$275,000	Jerrell Sutton As Administrator; Estate Of Rachel Sutton	Sterling State, Inc.	2004020300879001
1981-05-11	DEED	$0 / not stated	Sutton Rachel	Sutton Rachel; Sutton Jerrell	BK_8130123600894
1974-04-15	DEED	$0 / not stated	Miller Eula; Miller Thomas P	Sutton Rachel	BK_7430070300972

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-01; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-01; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-01

DOB job filings 0 open of 4

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.

Status	Job #	Type	Filed	Est. cost
Not open SIGNED OFF · 2016-07-19	321365991 BIS	A1 – Major alteration (changes use, egress or occupancy)	2016-04-12	$100
Not open SIGNED OFF · 2015-08-21	340198770 BIS	A2 – Alteration with multiple work types (no change to use/occupancy)	2014-10-22	$121,800
Not open SIGNED OFF · 2015-08-12	340139424 BIS	A2 – Alteration with multiple work types (no change to use/occupancy)	2014-04-28	$7,200
Not open PLAN EXAM - IN PROCESS · 2014-04-28	340139335 BIS	A2 – Alteration with multiple work types (no change to use/occupancy)	2014-04-28	$7,200

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

Work permits 7

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.

Issued	Expires	Job #	Work	Permit status
2016-05-25	2017-05-25	321365991 BIS	Alteration	ISSUED (initial)
2015-02-27	2016-02-27	340198770 BIS	Plumbing / Plumbing	ISSUED (renewal)
2014-11-20	2015-11-20	340198770 BIS	Plumbing / Plumbing	ISSUED (initial)
2014-11-18	2015-06-29	340198770 BIS	Equipment work / Mechanical/HVAC	ISSUED (initial)
2014-11-18	2015-06-29	340198770 BIS	Equipment work / Other / general construction	ISSUED (initial)
2014-07-29	2015-06-29	340139424 BIS	Equipment work / Other / general construction	ISSUED (renewal)
2014-05-19	2014-06-29	340139424 BIS	Equipment work / Other / general construction	ISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-10-31; data as of 2026-11-01; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 0 active of 0

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).

No records found in this dataset for this lot.

Source: DOB Violations — city dataset updated 2026-10-31; data as of 2026-11-01

ECB violations (DOB) 0 active of 9

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.

Status	Issued	Severity	What it was for	Penalty / paid / balance	ECB #
Resolved Hearing: WRITTEN OFF · Certification: CERTIFICATE ACCEPTED Written off refers to the penalty, not the violation.	2002-03-14	Hazardous	OCCUPANCY COMTRARY TO THAT ALLOWED BY THE DEPT OF BUILDING REOCRDS, APPLICATION # 4540 NOTED ; 1ST FLOOR WAS A CLASS "A" IT WAS CHANGED TO A CLASS "B" SLEEPING ROOMS REMEDY : OBTIAN A VALID CERTIFICATE OF OCCUP	$2,500 / $0 / $0	34322858Y
Resolved Hearing: DEFAULT · Certification: CERTIFICATE ACCEPTED	2001-12-06	Hazardous	WORK W/O A PERMIT WORKNOTED :ERECTED ENTERSION WALL'S PARTITION CREATING 3 SRO ON 2ND FLOOR 3 SRO APT 3RD FLOOR REMEDY: OBTAIN A PERMIT	$2,500 / $2,500 / $0	34304720M
Resolved Hearing: WRITTEN OFF · Certification: CERTIFICATE ACCEPTED Written off refers to the penalty, not the violation.	2002-04-10	Hazardous	OCCUPANCY CONTRARY TO THAT ALLOWED BY BUILDING DEPARTMENT RECORDS DEFECTS NOTED DEPT OF BUILDINGS RECORDS INDEX A TWO FAMILY BUILDING IS BEING OCCUPIED HAS 3 SRO APT AT 2ND FL (3)SRO AT 3 FL REMEDY DISCONTINUE	$2,500 / $0 / $0	34321855Y
Resolved Hearing: DEFAULT · Certification: CERTIFICATE ACCEPTED	2006-12-20	Hazardous	FAILURE TO MAINTAIN PLUMBING & OR APPURTENANCES.OBSERVED DEFECTIVE SPRINKLER SYSTEM. OS & Y VALVE (MAIN SHUT OFF VALVE) FOR SPRINKLER SYSTEM(SHUT) IN CELLAR.MISSING SPRINKLER HEADS ON 2ND & 3RD FLOORS	$2,500 / $862 / $0	34511612R
Resolved Hearing: WRITTEN OFF · Certification: CERTIFICATE ACCEPTED Written off refers to the penalty, not the violation.	2002-04-10	Hazardous	WORK WITHOUT A PERMMIT WORK NOTED ERECTED INTERIOR WALLS PARTITION CREATING 3SRO 2FL 3 SRO APTS 3 FL REMEDY OBTAIN A PERMIT	$2,500 / $0 / $0	34321854M
Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED	2005-05-06	Hazardous	RESIDENCE ALTERED FOR OCCUPANCY AS A DWELLING FOR MORE THAN THE LEGALLY APPROVED # OF FAMILIES.CERTIFICATE OF OCCUPANCY #108919 INDICATES RESIDENCE IS LEGALLY APPROVED 2 FAMILIES.RESIDENCE IS NOW ALTERED FOR OC	$5,300 / $5,300 / $0	34473061P
Resolved Hearing: DEFAULT · Certification: CERTIFICATE ACCEPTED	2001-12-06	Hazardous	OCCUPANCY CONTRARY TO THAT ALLOWED BY BUILDING. DEPARTMETN RECORDS BUILDING INDEX A TWO FAMILY ( RECORDS ) BUILDING BEEN OCCUPIED HAS 3 SRO APT 2ND FLOOR 3 SRO AT 3RD FLOOR. REMEDY : DISCONTINUE ILLEGAL USE OR	$2,500 / $2,857 / $0	34304721Y
Resolved Hearing: DISMISSED · Certification: N/A - DISMISSED	2002-03-14	Hazardous	OCCUPANCY CONTRARY TO DEPT. OF BLDGS RECORDS. NOTED: AT 4 FL. 4 SRO'S AT 3RD FL. 2 SRO'S AT 2ND FL. 2 SRO'S REMEDY:DISCONTINIE ILLEGAL USE OR AMEND CERTIFICATE OF OCCUPANCY	$0 / $0 / $0	34317444H
Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED	2005-05-06	Non-Hazardous	WORK WITHOUT PERMIT.NOTE:ON THE SECOND FLOOR ONSTALLED 2 KITCHEN SINKS AND 2 GAS STOVES IN THE 2 BEDROOMS OF THE SAID FLOOR.WATER,WASTE AND GAS LINES HAVE ALSO BEEN INSTALLED WITH THE SINKS AND GAS STOVES CONNE	$800 / $800 / $0	34473078L

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-01

OATH tickets (all agencies) 0 unpaid of 12

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.

Status	Date	Agency	Charge	Respondent	Imposed / paid / balance	Ticket #
No balance due PAID IN FULL	2016-04-13	Sanitation Dept	FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS	ROSENBERG ASTORIA LLC	$25 / $25 / —	041326331J
No balance due PAID IN FULL	2015-06-10	Sanitation Dept	FAILURE TO BUNDLE NEWSPAPES MAGAZINES CARDBOARD 1 TO 8 DWELLING UNITS	MARKET IMPACT LLC	$25 / $25 / —	041489456J
No balance due Default PAID IN FULL · DEFAULT	2006-12-20	Dept. Of Buildings	FAILURE TO MAINTAIN PLUMBING AND OR APPURTENANCES - HAZARDOUS.	JOHNSON	$2,500 / $863 / —	034511612R
No balance due PAID IN FULL · IN VIOLATION	2005-05-06				$5,300 / $5,300 / —	034473061P
No balance due PAID IN FULL · IN VIOLATION	2005-05-06				$800 / $800 / —	034473078L
No balance due WRITTEN OFF · WRITTEN OFF	2002-04-10	Dept. Of Buildings	WORK WITHOUT A PERMIT: HAZARDOUS.	SUTTON	$2,500 / — / —	034321854M
No balance due WRITTEN OFF · WRITTEN OFF	2002-04-10	Dept. Of Buildings	OCCUPANCY CONTRARY TO THAT ALLOWED BY C OF O OR DOB RECORDS: HAZARDOUS	SUTTON	$2,500 / — / —	034321855Y
No balance due HEARING COMPLETED · DISMISSED	2002-03-14				— / — / —	034317444H
No balance due WRITTEN OFF · WRITTEN OFF	2002-03-14	Dept. Of Buildings	FAILURE TO PROVIDE AT LEAST 2 MEANS OF EGRESS FROM ROOM SPACE AS REQ.	OWNER OF 435A CLASSON AVE	$2,500 / — / —	034322858Y
No balance due Default PAID IN FULL · DEFAULT	2001-12-06				$2,500 / $2,500 / —	034304720M
No balance due Default PAID IN FULL · DEFAULT	2001-12-06				$2,500 / $2,858 / —	034304721Y
No balance due Default PAID IN FULL · DEFAULT	2001-10-05				$300 / $350 / —	0125614437

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-01; data as of 2026-11-01

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.

HPD building ID: 221627
Last registered: 2025-08-24
Registration valid until: 2026-09-01 ExpiredRegistrations must be renewed every year.

Role	Name	Company	Business city
Corporateowner		ROSENBERG ASTORIA, LLC	New York, Ny
Headofficer	Elizabeth Rosenberg		New York, Ny
Sitemanager	Roger Fernandez
Officer	Adam Stryker		New York, Ny
Agent	Sal Radoncic	ALFRED S. FRIEDMAN REALTY, INC	New York, Ny

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-01; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-01

HPD housing-code violations 0 open of 8

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.

Status	Class	Issued	Condition
Closed Violation Dismissed · 2018-08-02	I	2018-01-10	§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed Violation Dismissed · 2015-12-09	I	2015-10-08	SECTION27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE ?27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF P
Closed Violation Dismissed · 2015-05-06	I	2015-02-18	SECTION27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE ?27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF P
Closed Violation Dismissed · 2016-07-22	B	2008-07-03	SECTION 65 M/D LAW PROVIDE UNDER COMPLETED PERMIT, A PROPER ENCLOSURE FOR THE CENTRAL HEATING PLANT, CELLAR CENTER.
Closed Violation Closed · 2016-07-21	B	2008-07-03	SECTION 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE PAINTED SPRINKLERHEADS ALL STYS PUBLIC HALLS.
Closed Violation Closed · 2016-07-21	B	2008-07-03	SECTION 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE FIRE RETARDED CEILING BOILER ROOM CELLAR.
Closed Violation Closed · 2016-07-21	B	2008-07-03	D26-10.01 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE PLASTER BOARD CEILING CELLAR THRU OUT.
Closed Violation Closed · 2016-07-21	B	2007-09-12	SECTION 27-2040 ADM CODE PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING 100 WATTS REQUIRED

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-10-31; data as of 2026-11-01

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 2026-11-01; data as of 2026-11-01

311 requests (last 12 months) 1

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.

Opened	Agency	Complaint	Status	Closed
2026-04-30	DSNY	Dirty Condition – Broken Glass	Closed	2026-04-30

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-01; data as of 2026-11-01

Nearby properties

On Classon Ave

Same tax block (1973)

451 Classon Avenue (42 open items)
449 Classon Avenue (56 open items)
447 Classon Avenue
445 Classon Avenue (three open items)
443 Classon Avenue (11 open items)
441a Classon Avenue (17 open items)
441 Classon Avenue (one open item)
439 Classon Avenue (nine open items)
437 Classon Avenue (one open item)
435 Classon Avenue

All properties on Classon Ave, Brooklyn · All of Brooklyn 11238 (Prospect Heights)

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