# 9727 4th Avenue, Brooklyn, NY 11209

BBL 3061270014 · Block 6127 · Lot 14 · BIN 3155887  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/9727-4th-avenue-3061270014  
Last updated: 2026-10-31 · Open-item counts as of 2026-10-31

Also recorded as: 9733 4 Ave

## Summary

9727 4th Avenue (Brooklyn, NY 11209; tax lot BBL 3061270014) is a 2-unit office building (building class O8: office building (subtype O8)), built around 1938, on a 2,241 sq ft lot zoned R6A. City tax records list the owner as 9733 4TH AVENUE LLC; per ACRIS, a deed to this owner dated April 9, 2019 lists a price of $2,325,000. The Department of Finance's final market value for tax year 2027 is $1,200,000. As of October 31, 2026, NYC Open Data shows three 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, “9727 4th Avenue, Brooklyn, NY 11209 (BBL 3061270014)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/9727-4th-avenue-3061270014. Source: NYC Open Data.

## Open items

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

## Lot & building

- Owner of record: 9733 4TH AVENUE LLC
- Building class: O8 – Office building (subtype O8)
- Year built: 1938
- Floors: 2
- Units: 2 residential / 3 total
- Lot area: 2,241 sq ft · Building area: 5,723 sq ft
- Zoning: R6A, C1-3, BR
- 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 $1,200,000, assessed value $540,000, 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 |
|---|---|---|---|
| 2019-04-09 | recorded (DEED) | DEED dated 2019-04-09 from 9727 4TH AVENUE LLC to 9733 4TH AVENUE LLC, stated price $2,325,000. | bnx9-e6tj |
| 2012-12-31 | recorded (DEED) | DEED dated 2012-12-31 from 9733 CORP. to 9727 4TH AVENUE LLC, stated price $1,150,000. | bnx9-e6tj |
| 1990-05-01 | recorded (DEED) | DEED dated 1990-05-01 from GUSTAVSEN, OLAV WILLIAM to 9733 CORP., no price stated ($0). | bnx9-e6tj |
| 1980-12-19 | recorded (DEED) | DEED dated 1980-12-19 from GIMBERNAT, JULIA G; KEOGH, GERTRUDE M/CONSERVATOR to GUSTAVSEN, OLAV WILLIAM, no price stated ($0) for a deed covering 11 lots. | 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 |
|---|---|---|---|
| 2025-02-13 | n/a (Signed-off) | DOB NOW work permit for job B01034701-I1: Boiler Equipment — Boiler work type only for two boilers in cellar in conjunction with BIS #321973744.. Issued 2025-02-13, expires 2025-12-31. | rbx6-tga4 |
| 2024-08-12 | n/a (Signed-off) | DOB NOW work permit for job B01034701-I1: Boiler Equipment — Boiler work type only for two boilers in cellar in conjunction with BIS #321973744.. Issued 2024-08-12, expires 2024-12-05. | rbx6-tga4 |
| 2024-02-26 | n/a (ISSUED (renewal)) | BIS work permit for job 321973744: Plumbing / Plumbing. Issued 2024-02-26, expires 2025-02-25. | ipu4-2q9a |
| 2023-01-13 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Plumbing — Installation of new fire sprinkler system with valves and meters for same.. Issued 2023-01-13, expires 2023-05-01. | rbx6-tga4 |
| 2023-01-13 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Sprinklers — Installation of new fire sprinkler system with valves and meters for same.. Issued 2023-01-13, expires 2023-05-01. | rbx6-tga4 |
| 2023-01-13 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Plumbing — Installation of new fire sprinkler system with valves and meters for same.. Issued 2023-01-13, expires 2023-05-01. | rbx6-tga4 |
| 2023-01-13 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Sprinklers — Installation of new fire sprinkler system with valves and meters for same.. Issued 2023-01-13, expires 2023-05-01. | rbx6-tga4 |
| 2022-05-19 | n/a (ISSUED (renewal)) | BIS work permit for job 321973744: Plumbing / Plumbing. Issued 2022-05-19, expires 2023-05-19. | ipu4-2q9a |
| 2021-04-29 | n/a (ISSUED (renewal)) | BIS work permit for job 321973744: Plumbing / Plumbing. Issued 2021-04-29, expires 2022-04-29. | ipu4-2q9a |
| 2020-07-14 | n/a (Signed-off) | DOB NOW work permit for job B00358695-I1: Sign — INSTALL EXTERIOR NON-ILLUMINATED WALL SIGN (PAVLOUNIS SFOUGGATAKIS ATTORNEYS AT LAW). Issued 2020-07-14, expires 2020-08-14. | rbx6-tga4 |
| 2020-07-14 | n/a (Signed-off) | DOB NOW work permit for job B00358693-I1: Sign — INSTALL EXTERIOR NON-ILLUMINATED WALL SIGN (PAVLOUNIS SFOUGGATAKIS ATTORNEYS AT LAW). Issued 2020-07-14, expires 2020-08-14. | rbx6-tga4 |
| 2019-11-14 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Sprinklers — Installation of new fire sprinkler system with valves and meters for same.. Issued 2019-11-14, expires 2020-11-30. | rbx6-tga4 |
| 2019-11-14 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Plumbing — Installation of new fire sprinkler system with valves and meters for same.. Issued 2019-11-14, expires 2020-11-30. | rbx6-tga4 |
| 2019-11-12 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Sprinklers — Installation of new fire sprinkler system with valves and meters for same.. Issued 2019-11-12, expires 2020-11-12. | rbx6-tga4 |
| 2019-11-12 | n/a (Signed-off) | DOB NOW work permit for job B00239887-I1: Plumbing — Installation of new fire sprinkler system with valves and meters for same.. Issued 2019-11-12, expires 2020-11-12. | rbx6-tga4 |
| 2019-11-08 | n/a (ISSUED (initial)) | BIS work permit for job 321973744: Plumbing / Plumbing. Issued 2019-11-08, expires 2020-11-07. | ipu4-2q9a |
| 2019-09-23 | n/a (Signed-off) | DOB NOW work permit for job B00179386-I1: Construction Fence — Temporary construction fence. Issued 2019-09-23, expires 2020-01-24. | rbx6-tga4 |
| 2019-09-04 | n/a (ISSUED (initial)) | BIS work permit for job 321973744: Alteration. Issued 2019-09-04, expires 2020-02-06. | ipu4-2q9a |
| 2015-01-30 | n/a (ISSUED (renewal)) | BIS work permit for job 320737958: Plumbing / Plumbing. Issued 2015-01-30, expires 2016-01-30. | ipu4-2q9a |
| 2013-05-14 | n/a (ISSUED (initial)) | BIS work permit for job 320737958: Plumbing / Plumbing. Issued 2013-05-14, expires 2014-05-14. | ipu4-2q9a |

Showing 20 of 23. Full list: https://nycpropertyfacts.com/api/v1/property/3061270014/permits

## Open violations (DOB, ECB, HPD)

status "open" = DOB violation category is ACTIVE, ECB violation status is ACTIVE, or HPD violation status is Open.

No records found.

## 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 |
|---|---|---|---|
| 2009-06-18 | open (DEFAULTED · DEFAULTED) | OATH ticket from Dos - Enforcement Agents: ILLEGAL POSTING OF HANDBILL NOTICE. Unpaid balance $200. Respondent defaulted (did not appear). | jz4z-kudi |
| 2009-06-18 | open (DEFAULTED · DEFAULTED) | OATH ticket from Dos - Enforcement Agents: ILLEGAL POSTING OF HANDBILL NOTICE. Unpaid balance $200. Respondent defaulted (did not appear). | jz4z-kudi |
| 2009-06-18 | open (DEFAULTED · DEFAULTED) | OATH ticket from Dos - Enforcement Agents: ILLEGAL POSTING OF HANDBILL NOTICE. Unpaid balance $200. 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 |
|---|---|---|---|
| 2026-09-16 | closed (Closed) | 311 request to NYPD: Blocked Driveway – No Access. | 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 9733 4TH AVENUE LLC. | 64uk-42ks |
| 2019-04-09 | recorded | Grantee (buyer) on the most recent deed (DEED, 2019-04-09). | 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/3061270014