# 520 Prospect Place, Brooklyn, NY 11238

BBL 3011630001 · Block 1163 · Lot 1 · BIN 3330782, 3330783, 3429501  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/520-prospect-place-3011630001  
Last updated: 2026-11-03 · Open-item counts as of 2026-11-06

Also recorded as: 551 Park Pl; 751 Classon Ave

## Summary

520 Prospect Place (Brooklyn, NY 11238; tax lot BBL 3011630001) is a health-care facility (building class I6: hospital or health facility (subtype I6)), built around 1975, on a 41,764 sq ft lot zoned R6A. City tax records list the owner as PROSPECT ACQUISITION X, LLC; per ACRIS, a deed to this owner dated June 25, 2018 lists a price of $64,000,000. The Department of Finance's final market value for tax year 2027 is $38,789,000. As of November 6, 2026, NYC Open Data shows two DOB jobs with a permit issued but no sign-off, 11 active DOB violations, one active ECB violation and three OATH tickets with an unpaid balance. There were 16 311 requests in the past 12 months and six 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, “520 Prospect Place, Brooklyn, NY 11238 (BBL 3011630001)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/520-prospect-place-3011630001. Source: NYC Open Data.

## Neighborhood

Prospect Heights: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/prospect-heights

- Open HPD violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/prospect-heights/open-hpd-violations
- Active DOB violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/prospect-heights/active-dob-violations
- Active ECB violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/prospect-heights/active-ecb-violations
- Open DOB jobs: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/prospect-heights/open-dob-jobs
- Unpaid OATH tickets: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/prospect-heights/unpaid-oath-tickets

## Open items

| Item | Count |
|---|---|
| Open DOB jobs (permit issued, not signed off) | 2 |
| Active DOB violations | 11 |
| Active ECB violations | 1 |
| Open HPD violations | 0 |
| OATH tickets with unpaid balance | 3 |

## Lot & building

- Owner of record: PROSPECT ACQUISITION X, LLC
- Building class: I6 – Hospital or health facility (subtype I6)
- Year built: 1975
- Floors: 5
- Units: 0 residential / 1 total
- Lot area: 41,764 sq ft · Building area: 118,230 sq ft
- Zoning: R6A, R6B
- Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), data as of 2026-11-06

## Tax assessment

- Tax year 2027 (final roll): market value $38,789,000, assessed value $17,455,050, tax class 4
- 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 |
|---|---|---|---|
| 2022-03-14 | recorded (DEED) | DEED dated 2022-03-14 from PROSPECT ACQUISITION II LLC to PROSPECT ACQUISITION X, LLC, no price stated ($0). | bnx9-e6tj |
| 2018-08-28 | recorded (DEED) | DEED dated 2018-08-28 from PROSPECT ACQUISITION II, LLC to PROSPECT ACQUISITION X, LLC; PROSPECT ACQUISITION II, LLC, no price stated ($0). | bnx9-e6tj |
| 2018-06-25 | recorded (DEED) | DEED dated 2018-06-25 from CENTER FOR NURSING & REHABILITATION INC. to PROSPECT ACQUISITION II, LLC, stated price $64,000,000. | bnx9-e6tj |
| 1974-05-13 | recorded (DEED) | DEED dated 1974-05-13 from JEWISH HOSPITAL AND MEDICAL CENTER OF BKLYN to JHMCB NURSING HOME CO INC, no price stated ($0). | bnx9-e6tj |
| 1969-12-10 | recorded (DEED) | DEED dated 1969-12-10 from BKLYN HOME FOR AGED MEN to JEWISH HOSPITAL & MEDICAL CENTER OF BKLYN, 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 |
|---|---|---|---|
| 2020-12-02 | open (Permit Entire) | DOB NOW job filing B00403821-I1 (Alteration): Permit Entire — permit issued, no sign-off on record. | w9ak-ipjd |
| 2001-08-21 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 301228981 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. RELOCATION OF 23 SPRINKLER HEADS. ADD 2 NEW SPRINKLER HEADS | ic3t-wcy2 |
| 2025-05-02 | n/a (ISSUED (renewal)) | BIS work permit for job 320506742: Equipment work / Other / general construction. Issued 2025-05-02, expires 2026-02-10. | ipu4-2q9a |
| 2025-03-13 | n/a (ISSUED (renewal)) | BIS work permit for job 300608288: Alteration. Issued 2025-03-13, expires 2026-02-10. | ipu4-2q9a |
| 2024-11-06 | n/a (ISSUED (renewal)) | BIS work permit for job 300608288: Alteration. Issued 2024-11-06, expires 2025-02-10. | ipu4-2q9a |
| 2023-12-13 | n/a (Signed-off) | DOB NOW work permit for job B00888652-I1: Boiler Equipment — INSTALL NEW 1,000 GAL. DIESEL TANK AND ABANDON EXISTING 1,000 GAL BURIED TANK. NO CHANGE IN USE, EGRESS OR OCCUPANCY.. Issued 2023-12-13, expires 2024-08-05. | rbx6-tga4 |
| 2023-12-01 | n/a (ISSUED (renewal)) | BIS work permit for job 300608288: Alteration. Issued 2023-12-01, expires 2024-11-06. | ipu4-2q9a |
| 2023-08-24 | n/a (Signed-off) | DOB NOW work permit for job B00888661-I1: General Construction — CREATE TANK ROOM. NO CHANGE IN USE, EGRESS OR OCCUPANCY.. Issued 2023-08-24, expires 2024-08-05. | rbx6-tga4 |
| 2022-11-30 | n/a (ISSUED (renewal)) | BIS work permit for job 300608288: Alteration. Issued 2022-11-30, expires 2023-11-06. | ipu4-2q9a |
| 2022-05-25 | n/a (Signed-off) | DOB NOW work permit for job B00667501-I1: Mechanical Systems — Installation of one new 75 KW cogeneration unit, two new hot water heat exchangers, and one new dump radiator in the cellar with associated piping as per plans…. Issued 2022-05-25, expires 2022-06-14. | rbx6-tga4 |
| 2022-04-28 | n/a (Permit Issued) | DOB NOW work permit for job B00403821-I1: Plumbing — CONNECT EXG. GAS LINE TO REPLACEMENT BOILERS AND NEW BOILERS. REPLACEMENT BOILERS FILED UNDER UNDER DOB NOW BUILD B00402793 AND NEW BOILERS FILED UNDER DOB NOW…. Issued 2022-04-28, expires 2022-06-30. | rbx6-tga4 |
| 2022-03-28 | n/a (Signed-off) | DOB NOW work permit for job B00402793-I1: Boiler Equipment — REPLACE TWO (2) BOILERS AND TWO (2) BURNERS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.. Issued 2022-03-28, expires 2022-06-30. | rbx6-tga4 |
| 2022-03-28 | n/a (Signed-off) | DOB NOW work permit for job B00412580-I1: Boiler Equipment — INSTALL 2 NEW BOILERS WITH 3 ASSOCIATED STORAGE TANKS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.. Issued 2022-03-28, expires 2022-06-30. | rbx6-tga4 |
| 2022-03-01 | n/a (Signed-off) | DOB NOW work permit for job B00667498-I1: Plumbing — Installation of new gas meter and new gas piping to new cogen unit filed under B00667501 in the cellar and osp as per plans filed herewith.. Issued 2022-03-01, expires 2022-08-30. | rbx6-tga4 |
| 2021-12-17 | n/a (ISSUED (renewal)) | BIS work permit for job 300797038: Equipment work / Fire suppression. Issued 2021-12-17, expires 2022-06-27. | ipu4-2q9a |
| 2021-11-12 | n/a (ISSUED (renewal)) | BIS work permit for job 300608288: Alteration. Issued 2021-11-12, expires 2022-11-06. | ipu4-2q9a |
| 2021-03-19 | n/a (ISSUED (renewal)) | BIS work permit for job 300797038: Plumbing / Plumbing. Issued 2021-03-19, expires 2022-03-19. | ipu4-2q9a |
| 2020-12-08 | n/a (Signed-off) | DOB NOW work permit for job B00412580-I1: Boiler Equipment — INSTALL 2 NEW BOILERS WITH 3 ASSOCIATED STORAGE TANKS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.. Issued 2020-12-08, expires 2021-07-21. | rbx6-tga4 |
| 2020-12-07 | n/a (Permit Issued) | DOB NOW work permit for job B00403821-I1: Plumbing — CONNECT EXG. GAS LINE TO REPLACEMENT BOILERS AND NEW BOILERS. REPLACEMENT BOILERS FILED UNDER UNDER DOB NOW BUILD B00402793 AND NEW BOILERS FILED UNDER DOB NOW…. Issued 2020-12-07, expires 2021-07-21. | rbx6-tga4 |
| 2020-12-07 | n/a (Signed-off) | DOB NOW work permit for job B00402793-I1: Boiler Equipment — REPLACE TWO (2) BOILERS AND TWO (2) BURNERS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.. Issued 2020-12-07, expires 2021-07-21. | rbx6-tga4 |

Showing 20 of 88. Full list: https://nycpropertyfacts.com/api/v1/property/3011630001/permits

## 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 |
|---|---|---|---|
| 2025-11-14 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2024-09-23 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED-FAILURE TO FILE 2023 EXTERNAL LOW PRESSURE INSPECTION. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2023-06-30 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2023-06-30 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2023-06-20 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2023-04-25 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTION. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2019-11-08 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT. Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 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 |
| 2013-06-25 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (E-ELEVATOR ELEVATORREQUIRED). Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2013-06-25 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (E-ELEVATOR ELEVATORREQUIRED). Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 1993-08-16 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED). Active — not recorded as resolved or dismissed. | 3h2n-5cm9 |
| 2025-05-28 | open (violation status ACTIVE; hearing status DEFAULT; certification NO COMPLIANCE RECORDED) | ECB (DOB) violation, class - 2: FAILURE TO FILE REQUIRED ANNUAL BOILER INSPECTION REPORTS FOR LOW-PRESSURE BOILER 30000067007N0003 IN ACCORDANCE WITH THE RULES OF THE DEPARTMENT. 1RCNY 103-01(D)(1) REQUIRES THAT AN ANNUAL INSPECTION REPORT FO. Violation status (DOB): active (open; not resolved in DOB records). Hearing/penalty status: default (the respondent did not appear; the penalty was imposed by default). Certification of correction: no compliance recorded. | 6bgk-3dad |

## 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 |
|---|---|---|---|
| 2026-01-22 | open (DOCKETED · DEFAULTED) | OATH ticket from Fire Department Of Nyc: FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS. Unpaid balance $71. Respondent defaulted (did not appear). | jz4z-kudi |
| 2025-04-01 | open (DOCKETED · DEFAULTED) | OATH ticket from Fire Department Of Nyc: FIRE PROTECTION SYSTEMS:FAIL TO PREVENT UNNECESSARY UNWARRANTED ALARMS. Unpaid balance $5,000. Respondent defaulted (did not appear). | jz4z-kudi |
| 2025-03-17 | open (HEARING COMPLETED · IN VIOLATION) | OATH ticket from Pcs - Dohmh: FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 3RD. Unpaid balance $1,200. | jz4z-kudi |
| 2026-09-02 | pending (NEW ISSUANCE) | OATH ticket from Pcs - Dohmh: FAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST. Hearing pending. | 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 |
|---|---|---|---|
| 2026-10-23 | open (OPEN) | HPD complaint (apt WWING4): Unsanitary Condition – Pests. The following complaint conditions are still open. HPD has already attempted to notify the property owner that the condition exists; the tenant should provide access for the owner to make the repair.… | ygpa-z7cr |
| 2024-07-10 | closed (CLOSE) | HPD complaint (apt 544): Water Leak – Slow Leak; Unsanitary Condition – Mold. The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. | ygpa-z7cr |
| 2024-01-16 | closed (CLOSE) | HPD complaint (apt 5FLRM4): Heat/Hot Water – Apartment Only. The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed. | ygpa-z7cr |
| 2024-01-09 | closed (CLOSE) | HPD complaint (apt 544): 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 |
| 2021-10-19 | closed (CLOSE) | HPD complaint (apt BLDG): Heat/Hot Water – Entire Building. The Department of Housing Preservation and Development responded to a complaint of no heat or hot water. Heat was not required at the time of the inspection. No violations were issued. If the conditi… | ygpa-z7cr |
| 2019-01-30 | closed (CLOSE) | HPD complaint (apt BLDG): Heat/Hot Water – Entire Building. The Department of Housing Preservation and Development contacted a tenant in the building and verified that the following conditions were corrected. The complaint has been closed. If the condition st… | ygpa-z7cr |
| 2026-10-23 | open (Open) | 311 request to HPD: UNSANITARY CONDITION – PESTS. | erm2-nwe9 |
| 2026-09-23 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Crosswalk. | erm2-nwe9 |
| 2026-09-07 | open (In Progress) | 311 request to EDC: Noise - Helicopter – NYPD. | erm2-nwe9 |
| 2026-08-28 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Bike Lane. | erm2-nwe9 |
| 2026-08-25 | open (In Progress) | 311 request to EDC: Noise - Helicopter – Other. | erm2-nwe9 |
| 2026-08-09 | closed (Closed) | 311 request to NYPD: Abandoned Vehicle – With License Plate. | erm2-nwe9 |
| 2026-07-23 | closed (Closed) | 311 request to DOT: Sidewalk Condition – Broken Sidewalk. | erm2-nwe9 |
| 2026-05-14 | closed (Closed) | 311 request to DOB: Elevator – Elevator - Multiple Devices On Property. | erm2-nwe9 |
| 2026-05-01 | closed (Closed) | 311 request to DEP: Noise – Noise: Private Carting Noise (NQ1). | erm2-nwe9 |

Showing 15 of 22. Full list: https://nycpropertyfacts.com/api/v1/property/3011630001/complaints

## 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 PROSPECT ACQUISITION X, LLC. | 64uk-42ks |
| 2022-03-14 | recorded | Grantee (buyer) on the most recent deed (DEED, 2022-03-14). | 636b-3b5g |

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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/3011630001