# 401 4th Avenue, Park Slope, Brooklyn, NY 11215

BBL 3009930002 · Block 993 · Lot 2 · BIN 3021575  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/401-4th-avenue-3009930002  
Last updated: 2026-11-05 · Open-item counts as of 2026-11-09

## Summary

401 4th Avenue (Brooklyn, NY 11215; tax lot BBL 3009930002) is a 6-unit walk-up apartment building (building class C2: walk-up apartments, five or six families), built around 1931, on a 2,063 sq ft lot zoned C4-4D. City tax records list the owner as HG BUILDING BLOCKS. The Department of Finance's final market value for tax year 2027 is $2,477,000. As of November 9, 2026 (limited by OATH Hearings Division Case Status; other open-item sources were confirmed later), NYC Open Data shows one DOB job with a permit issued but no sign-off and three active DOB violations (two BIS violations and one DOB NOW safety violation). There were four 311 requests 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, “401 4th Avenue, Brooklyn, NY 11215 (BBL 3009930002)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/brooklyn/401-4th-avenue-3009930002. Source: NYC Open Data.

## Neighborhood

Park Slope: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope

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

## ZIP

Brooklyn 11215: https://nycpropertyfacts.com/ny/brooklyn/11215

## Nearby properties

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

- 399 4th Avenue (27 ft): https://nycpropertyfacts.com/ny/brooklyn/399-4th-avenue-3009930003
- 397 4th Avenue (54 ft): https://nycpropertyfacts.com/ny/brooklyn/397-4th-avenue-3009930004
- 403 4th Avenue (75 ft): https://nycpropertyfacts.com/ny/brooklyn/403-4th-avenue-3009930001
- 395 4th Avenue (81 ft): https://nycpropertyfacts.com/ny/brooklyn/395-4th-avenue-3009930005
- 393 4th Avenue (133 ft): https://nycpropertyfacts.com/ny/brooklyn/393-4th-avenue-3009930006
- 412 4th Avenue (183 ft): https://nycpropertyfacts.com/ny/brooklyn/412-4th-avenue-3009920040
- 284 6th Street (188 ft): https://nycpropertyfacts.com/ny/brooklyn/284-6th-street-3009930013
- 286 6th Street (209 ft): https://nycpropertyfacts.com/ny/brooklyn/286-6th-street-3009930014

## Open items

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

## Lot & building

- Owner of record: HG BUILDING BLOCKS
- Building class: C2 – Walk-up apartments, five or six families
- Year built: 1931
- Floors: 3
- Units: 6 residential / 6 total
- Lot area: 2,063 sq ft · Building area: 4,374 sq ft
- Zoning: C4-4D, G
- Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), city dataset updated 2026-08-24; last loaded 2026-11-10

## Tax assessment

- Tax year 2027 (final roll): market value $2,477,000, assessed value $1,114,650, 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 |
|---|---|---|---|
| 2002-02-12 | recorded (DEED) | DEED dated 2002-02-12 from FAGA REALTY CORP to HG BUILDING BLOCKS LLC, 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 |
|---|---|---|---|
| 2010-05-06 | open (PERMIT ISSUED - ENTIRE JOB/WORK) | BIS job 320153025 (A2 – Alteration with multiple work types (no change to use/occupancy)): PERMIT ISSUED - ENTIRE JOB/WORK — permit issued, no sign-off on record. RENOVATE APT. 1L. NO CHANGE TO EGRESS USE OR OCCUPANCY | ic3t-wcy2 |
| 2010-08-17 | n/a (ISSUED (initial)) | BIS work permit for job 320153025: Plumbing / Plumbing. Issued 2010-08-17, expires 2011-08-17. | ipu4-2q9a |
| 2010-06-22 | n/a (ISSUED (initial)) | BIS work permit for job 320153025: Equipment work / Other / general construction. Issued 2010-06-22, expires 2010-12-14. | ipu4-2q9a |

## Open violations (DOB, DOB NOW safety, ECB, HPD)

status "open" = DOB violation category is ACTIVE, DOB NOW safety violation status is Active, ECB violation status is ACTIVE, or HPD violation status is Open. Dismissed, cured, waived and disputed-successfully safety violations are not open.

| Date | Status | Description | Source |
|---|---|---|---|
| 2015-03-03 | open (V-DOB VIOLATION - ACTIVE) | DOB violation (LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED): VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT. 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 |
| 2015-03-03 | open (Active) | DOB NOW safety violation (Boiler), type LBLVIO, 030315LBLVIO06467: VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT. Active. | 855j-jady |

## DOB safety violations (DOB NOW)

Active means the published violation status is Active. Dismissed, cured, waived, disputed successfully and pending dismissal are not open items.

| Issued | Status | Type | Device | Number | Remarks |
|---|---|---|---|---|---|
| 2015-03-03 | open (Active) | LBLVIO | Boiler | 030315LBLVIO06467 | VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT |

0 resolved or not active. Full list: https://nycpropertyfacts.com/api/v1/property/3009930002/violations?type=dob_safety_violation

Source: DOB Safety Violations (DOB NOW) (https://data.cityofnewyork.us/Building/DOB-Safety-Violations/855j-jady), city dataset updated 2026-11-09; last loaded 2026-11-10

## 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.

No records found.

## Complaints (HPD since 2019, 311 last 12 months)

Complaints are reports, not violations. status mirrors the published complaint / request status.

| Date | Status | Description | Source |
|---|---|---|---|
| 2026-10-29 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Bike Lane. | erm2-nwe9 |
| 2026-08-25 | closed (Closed) | 311 request to NYPD: Illegal Parking – Blocked Sidewalk. | erm2-nwe9 |
| 2026-08-25 | open (In Progress) | 311 request to TLC: For Hire Vehicle Complaint – Driver Complaint - Non Passenger. | erm2-nwe9 |
| 2026-06-12 | closed (Closed) | 311 request to NYPD: Illegal Parking – Posted Parking Sign Violation. | 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 HG BUILDING BLOCKS. | 64uk-42ks |
| 2002-02-12 | recorded | Grantee (buyer) on the most recent deed (DEED, 2002-02-12). | 636b-3b5g |
| 2026-08-27 | current_registration | HPD registration contact: CorporateOwner (HG Building Blocks LLC), business city Brooklyn. | feu5-w2e2 |
| 2026-08-27 | current_registration | HPD registration contact: SiteManager Alejandro Romero. | feu5-w2e2 |
| 2026-08-27 | current_registration | HPD registration contact: HeadOfficer Demetria Galanis, business city Brooklyn. | feu5-w2e2 |
| 2026-08-27 | current_registration | HPD registration contact: Agent Alejandro Romero (Brownstone Management LLC), business city Brooklyn. | 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/3009930002