# 645 Knickerbocker Avenue, Brooklyn, NY 11221

BBL 3033650108 · Block 3365 · Lot 108 · BIN 3076916  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/645-knickerbocker-avenue-3033650108  
Last updated: 2026-10-31 · Open-item counts as of 2026-10-31

## Summary

645 Knickerbocker Avenue (Brooklyn, NY 11221; tax lot BBL 3033650108) is a 5-unit walk-up apartment building (building class C2: walk-up apartments, five or six families), built around 1915, on a 1,760 sq ft lot zoned R6. City tax records list the owner as RED DEVELOPMENT INC; per ACRIS, a deed to this owner dated June 13, 2017 lists a price of $950,000. The Department of Finance's final market value for tax year 2027 is $1,073,000. As of October 31, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off, 11 open HPD violations and seven OATH tickets with an unpaid balance. 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.)

How to cite: NYC Property Facts, “645 Knickerbocker Avenue, Brooklyn, NY 11221 (BBL 3033650108)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/645-knickerbocker-avenue-3033650108. Source: NYC Open Data.

## Open items

| Item | Count |
|---|---|
| Open DOB jobs (permit issued, not signed off) | 1 |
| Active DOB violations | 0 |
| Active ECB violations | 0 |
| Open HPD violations | 11 |
| OATH tickets with unpaid balance | 7 |

## Lot & building

- Owner of record: RED DEVELOPMENT INC
- Building class: C2 – Walk-up apartments, five or six families
- Year built: 1915
- Floors: 4
- Units: 5 residential / 5 total
- Lot area: 1,760 sq ft · Building area: 3,898 sq ft
- Zoning: R6
- 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 $1,073,000, assessed value $482,850, tax class 2A
- 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 |
|---|---|---|---|
| 2017-06-13 | recorded (DEED) | DEED dated 2017-06-13 from KIKR EQUITIES LLC to RED DEVELOPMENT INC, stated price $950,000. | bnx9-e6tj |
| 2016-04-15 | recorded (DEED) | DEED dated 2016-04-15 from TACOAMAN, SEGUNDO FRANCISCO to KIKR EQUITIES LLC, stated price $300,000. | bnx9-e6tj |
| 2005-11-07 | recorded (DEED) | DEED dated 2005-11-07 from CUNALATA, ALEJANDRO to TACOAMAN, SEGUNDO FRANCISCO, stated price $499,500. | bnx9-e6tj |
| 2005-08-05 | recorded (DEED) | DEED dated 2005-08-05 from DELAROSA, JOHN to CUNALATA, ALEJANDRO, stated price $434,600. | bnx9-e6tj |
| 2004-06-26 | recorded (DEED) | DEED dated 2004-06-26 from DELAROSA, MARIA to DELAROSA, JOHN, no price stated ($0). | bnx9-e6tj |
| 2004-02-25 | recorded (DEED) | DEED dated 2004-02-25 from DELAROSA, RICHARD; DELAROSA, JOHN to DELAROSA, MARIA, no price stated ($0). | bnx9-e6tj |
| 2002-07-23 | recorded (DEED) | DEED dated 2002-07-23 from DELAROSA, AUGUSTO/DECEASED; DELAROSA, MARIA to DELAROSA, JOHN; DELAROSA, RICHARD, no price stated ($0). | bnx9-e6tj |
| 1980-07-14 | recorded (DEED) | DEED dated 1980-07-14 from PERRI JOSEPH to DELARSA MARIA; DELARSA AUGUSTO, no price stated ($0). | bnx9-e6tj |
| 1970-06-30 | recorded (DEED) | DEED dated 1970-06-30 from MONTES MARIA; MONTES AUGUSTIN to PERRI JOSEPH, 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 |
|---|---|---|---|
| 2016-06-29 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 321411110 (A1 – Major alteration (changes use, egress or occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. | ic3t-wcy2 |
| 2019-03-26 | n/a (ISSUED (renewal)) | BIS work permit for job 321411110: Alteration. Issued 2019-03-26, expires 2019-12-02. | ipu4-2q9a |
| 2019-02-20 | n/a (ISSUED (renewal)) | BIS work permit for job 321411110: Plumbing / Plumbing. Issued 2019-02-20, expires 2020-02-20. | ipu4-2q9a |
| 2019-01-24 | n/a (ISSUED (renewal)) | BIS work permit for job 321411110: Construction equipment (scaffold, fence, shed) / Construction equipment. Issued 2019-01-24, expires 2020-01-24. | ipu4-2q9a |
| 2018-07-10 | n/a (ISSUED (initial)) | BIS work permit for job 321699676: Equipment work / Sprinkler. Issued 2018-07-10, expires 2019-07-10. | ipu4-2q9a |
| 2018-04-10 | n/a (ISSUED (renewal)) | BIS work permit for job 321411110: Alteration. Issued 2018-04-10, expires 2019-04-04. | ipu4-2q9a |
| 2018-01-23 | n/a (Signed-off) | DOB NOW work permit for job B00001979-I1: Supported Scaffold — PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION.. Issued 2018-01-23, expires 2018-09-19. | rbx6-tga4 |
| 2017-12-18 | n/a (ISSUED (initial)) | BIS work permit for job 321411110: Plumbing / Plumbing. Issued 2017-12-18, expires 2018-12-18. | ipu4-2q9a |
| 2017-11-08 | n/a (Signed-off) | DOB NOW work permit for job B00001979-I1: Supported Scaffold — PROPOSED INSTALLATION OF PIPE SCAFFOLD FOR REMEDIAL REPAIRS AS PER PLANS. NO CHANGE IN USE OCCUPANCY OR EGRESS UNDER THIS APPLICATION.. Issued 2017-11-08, expires 2017-12-31. | rbx6-tga4 |
| 2017-09-07 | n/a (ISSUED (initial)) | BIS work permit for job 340540515: Construction equipment (scaffold, fence, shed) / Construction equipment. Issued 2017-09-07, expires 2018-09-07. | ipu4-2q9a |
| 2017-08-22 | n/a (ISSUED (initial)) | BIS work permit for job 321411110: Alteration. Issued 2017-08-22, expires 2018-04-04. | ipu4-2q9a |
| 2017-08-22 | n/a (ISSUED (initial)) | BIS work permit for job 321411110: Construction equipment (scaffold, fence, shed) / Construction equipment. Issued 2017-08-22, expires 2018-08-22. | ipu4-2q9a |

## 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 |
|---|---|---|---|
| 2025-11-24 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2024-12-04 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2023-11-28 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2022-11-17 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2022-03-16 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2021-04-21 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2019-11-07 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2018-01-08 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 |
| 2009-08-13 | open (Nov Sent Out) | HPD class A violation (Class A) in apt 2 FL: SECTION 27-2013 ADMIN. CODE: PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT CEILING AND WALLS THROUGHOUT IN THE ENTIRE APARTMENT LOCATED AT APT 2 FL, 2nd STORY. Open — not recorded as corrected. | wvxf-dwi5 |
| 2009-08-13 | open (Nov Sent Out) | HPD class C violation (Class C): SECTION 27-2005 ADMIN. CODE: REMOVE THE ILLEGAL FASTENING DOUBLE CYLINDER KEY OPERATED LOCK INSTALLED AT METAL DOOR, ENTRANCE TO BUILDING FROM STREET AT FRONT AREAWAY. Open — not recorded as corrected. | wvxf-dwi5 |
| 2009-08-13 | open (Nov Sent Out) | HPD class A violation (Class A) in apt 2L: SECTION 27-2013 ADMIN. CODE: PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT WALLS AND CEILINGS IN THE ENTIRE APARTMENT LOCATED AT APT 2L, 2nd STORY, APARTMENT AT EAST. 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 |
|---|---|---|---|
| 2026-05-09 | open (DEFAULTED · DEFAULTED) | OATH ticket from Sanitation Others: FAIL TO RECYCLE ORGANIC WASTE 1-8 DWELLING UNITS 1ST. Unpaid balance $25. Respondent defaulted (did not appear). | jz4z-kudi |
| 2025-04-02 | open (DOCKETED · DEFAULTED) | OATH ticket from Sanitation Others: IMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1ST. Unpaid balance $300. Respondent defaulted (did not appear). | jz4z-kudi |
| 2025-02-22 | open (DOCKETED · DEFAULTED) | OATH ticket from Sanitation Others: IMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1ST. Unpaid balance $300. Respondent defaulted (did not appear). | jz4z-kudi |
| 2024-06-17 | open (DOCKETED · DEFAULTED) | OATH ticket from Sanitation Recycling: UNCOVERED RECEPTACLES 1ST OCCURRENCE. Unpaid balance $300. Respondent defaulted (did not appear). | jz4z-kudi |
| 2024-03-20 | open (DOCKETED · DEFAULTED) | OATH ticket from Sanitation Others: SIDEWALK OBSTRUCTION. Unpaid balance $300. Respondent defaulted (did not appear). | jz4z-kudi |
| 2021-10-25 | open (DOCKETED · DEFAULTED) | OATH ticket from Dos - Enforcement Agents: DIRTY SIDEWALK DIRTY AREA. Unpaid balance $300. Respondent defaulted (did not appear). | jz4z-kudi |
| 2021-02-26 | open (DOCKETED · DEFAULTED) | OATH ticket from Sanitation Others: FAILURE TO CLEAN 18 INCHES INTO STREET. Unpaid balance $300. 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 |
|---|---|---|---|
| 2026-09-04 | open (In Progress) | 311 request to DPR: Damaged Tree – Tree Leaning/Uprooted. | 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 RED DEVELOPMENT INC. | 64uk-42ks |
| 2017-06-13 | recorded | Grantee (buyer) on the most recent deed (DEED, 2017-06-13). | 636b-3b5g |
| 2016-07-05 | expired_registration | HPD registration contact: HeadOfficer Iskyo Aronov, business city Forest Hills. | feu5-w2e2 |
| 2016-07-05 | expired_registration | HPD registration contact: Officer Iskyo Aronov, business city Forest Hills. | feu5-w2e2 |
| 2016-07-05 | expired_registration | HPD registration contact: CorporateOwner (KIKR EQUITIES LLC), business city Forest Hills. | feu5-w2e2 |
| 2016-07-05 | expired_registration | HPD registration contact: Agent Iskyo Aronov (KIKR EQUITIES LLC), business city Forest Hills. | 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/3033650108