401 4th Avenue, Brooklyn, NY 11215
BBL 3009930002 (Borough 3, Block 993, Lot 2) · BIN 3021575 · Last updated: · Park Slope · ZIP 11215
Summary · as of November 8, 2026
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 8, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and two active DOB violations. 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.)
- Owner of record
- HG BUILDING BLOCKS
- Building class
- C2 · Walk-up apartments, five or six families
- Year built · units
- 1931 · 6 res.
- Lot area · zoning
- 2,063 sq ft · C4-4D
- Market value (DOF)
- $2,477,000 FY2027
- Last priced deed
- —
- BBL
- 3009930002
- BIN
- 3021575
- 1Open DOB jobs (permit issued, no sign-off)
- 2Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “401 4th Avenue, Brooklyn, NY 11215 (BBL 3009930002)”, data as of 2026-11-08, https://nycpropertyfacts.com/ny/brooklyn/401-4th-avenue-3009930002. 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)
- HG BUILDING BLOCKSThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- C2 – Walk-up apartments, five or six familiesThe Department of Finance’s category for what kind of building this is.
- Land use
- Multi-family walk-up buildingsCity Planning’s broad category of how the lot is used.
- Year built
- 1931Often an estimate for older buildings.
- Floors
- 3
- Units
- 6 residential / 6 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 2,063 sq ft (26.5 ft × 77.83 ft)
- Building floor area
- 4,374 sq ft
- Zoning
- C4-4D, GThe zoning district sets what can be built and used here. Commercial district.
- Built vs. allowed density (FAR)
- 2.12 built / 6.02 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 3009930002 (Borough 3, Block 993, Lot 2) · BIN 3021575BBL 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; last loaded 2026-11-08; Building Footprints — city dataset updated 2026-11-08; last loaded 2026-11-08
Tax assessment
How the Department of Finance values this lot for property tax.
- Market value (tax year 2027, final roll)
- $2,477,000The 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
- $1,114,650The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $123,659Assessed value minus any exemptions.
- Tax class
- Tax class 2A – residential rental, 4–6 units
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $2,477,000 | $1,114,650 | 2A |
| 2026 | Final | $2,370,000 | $1,066,500 | 2A |
| 2025 | Final | $1,975,000 | $888,750 | 2A |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-08
Sales & deed history 1
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 |
|---|---|---|---|---|---|
| 2002-02-12 | DEED | $0 / not stated | Faga Realty Corp | Hg Building Blocks Llc | FT_3480008044348 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-08; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-08; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-08
DOB job filings 1 open of 1
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 |
|---|---|---|---|---|
| Permitted, not signed off PERMIT ISSUED - ENTIRE JOB/WORK · 2010-08-17 | 320153025 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2010-05-06 | $39,400 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-07; last loaded 2026-11-08; DOB Job Application Filings (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-08
Work permits 2
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 |
|---|---|---|---|---|
| 2010-08-17 | 2011-08-17 | 320153025 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2010-06-22 | 2010-12-14 | 320153025 BIS | Equipment work / Other / general construction | ISSUED (initial) |
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-07; last loaded 2026-11-08; DOB Permit Issuance (BIS) — city dataset updated 2026-11-07; last loaded 2026-11-07
DOB violations 2 active of 6
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).
| Status | Issued | Type | Description | Number |
|---|---|---|---|---|
| Active V-DOB VIOLATION - ACTIVE | 2015-03-03 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT | V030315LBLVIO06467 |
| Active V-DOB VIOLATION - ACTIVE | 1993-08-16 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V081693LL629120713 | |
| Resolved/dismissed VW*-VIOLATION - WORK W/O PERMIT DISMISSED | 2010-04-16 | C-CONSTRUCTION OTHER OPTIONAL | VW*041610C0601JS | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1995-08-29 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*082995LL629122758 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1994-06-01 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*060194LL629102837 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1993-06-01 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*060193LL629102836 |
Source: DOB Violations — city dataset updated 2026-11-07; last loaded 2026-11-08
ECB violations (DOB) 0 active of 0
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.
No records found in this dataset for this lot.
Source: DOB ECB Violations — city dataset updated 2026-11-07; last loaded 2026-11-08
OATH tickets (all agencies) 0 unpaid of 13
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 HEARING COMPLETED · IN VIOLATION | 2026-07-13 | Fire Department Of Nyc | AFFIDAVITS, DESIGN INSTALLATION DOCUMENTS, AND OTHER DOCUMENTATION | HG BUILDING BLOCKS, LLC. | $0 / $0 / $0 | 014260583H |
| No balance due Default PAID IN FULL · DEFAULTED | 2024-09-13 | Dep - Bureau Of Env. Complianc | IDLING OF MOTOR VEHICLE ENGINE MORE THAN THREE MINUTES 3RD AND SUB | AMAZON LOGISTICS INC | $2,000 / $2,628 / $0 | 000883727K |
| No balance due PAID IN FULL | 2021-04-21 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | HG BUILDING BLOCKS | $100 / $100 / $0 | 047061733J |
| No balance due PAID IN FULL | 2016-10-21 | Dos - Enforcement Agents | UNCOVERED RECEPTACLES 1ST OFFENSE | HG BUILDING BLOCKS | $100 / $200 / $-100 | 044880562Y |
| No balance due PAID IN FULL | 2016-07-23 | Sanitation Dept | SIDEWALK OBSTRUCTION | HG BUILDING BLOCKS | $100 / $100 / — | 041897868Z |
| No balance due PAID IN FULL | 2016-04-21 | Sanitation Dept | RECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITS | HG BUILDING BLOCKS | $25 / $25 / — | 041559845Y |
| No balance due HEARING COMPLETED · IN VIOLATION | 2015-06-01 | Fire Department Of Nyc | PORTABLE FIRE EXTINGUISHERS AND FIRE HOSES | HG BUILDING BLOCKS LLC | — / — / — | 011442330H |
| No balance due Default PAID IN FULL · DEFAULT | 2015-04-30 | Sanitation Dept | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | HG BUILDING BLOCKS | $25 / $25 / — | 041867497L |
| No balance due PAID IN FULL | 2014-09-10 | Sanitation Dept | UNCOVERED RECEPTACLES 1ST OFFENSE | HG BUILDING BLOCKS | $100 / $100 / — | 042156119J |
| No balance due HEARING COMPLETED · IN VIOLATION | 2011-10-17 | Fire Department Of Nyc | HEATING AND REFRIGERATING EQUIPMENT AND SYSTEMS | HG BUILDING BLOCKS LLG | — / — / — | 011295102Z |
| No balance due HEARING COMPLETED · IN VIOLATION | 2009-09-15 | Fire Department Of Nyc | PORTABLE FIRE EXTINGUISHERS AND FIRE HOSES | HG BUILDING BLOCKS LLC | — / — / — | 011154919Y |
| No balance due PAID IN FULL | 2008-10-23 | Sanitation Others | FAILURE TO PROPERLY PUT RECYCLABLES OUT FOR COLLECTION | HG BUILDING BLOCKS | $25 / $25 / — | 0160197786 |
Showing 12 of 13 records. The API and the source dataset have the full list.
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-08; last loaded 2026-11-08
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
- 129016
- Last registered
- 2026-08-27
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Corporateowner | HG Building Blocks LLC | Brooklyn, Ny | |
| Sitemanager | Alejandro Romero | ||
| Headofficer | Demetria Galanis | Brooklyn, Ny | |
| Agent | Alejandro Romero | Brownstone Management LLC | Brooklyn, Ny |
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; last loaded 2026-11-08; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-08
HPD housing-code violations 0 open of 0
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.
No records found in this dataset for this lot.
Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-08; last loaded 2026-11-08
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 2026-11-08; last loaded 2026-11-08
311 requests (last 12 months) 4
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 |
|---|---|---|---|---|
| 2026-10-29 | NYPD | Illegal Parking – Blocked Bike Lane | Closed | 2026-10-29 |
| 2026-08-25 | NYPD | Illegal Parking – Blocked Sidewalk | Closed | 2026-08-25 |
| 2026-08-25 | TLC | For Hire Vehicle Complaint – Driver Complaint - Non Passenger | In Progress | — |
| 2026-06-12 | NYPD | Illegal Parking – Posted Parking Sign Violation | Closed | 2026-06-12 |
Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-07; last loaded 2026-11-07; a later sync attempt failed on 2026-11-08; showing the last successful load
Nearby properties
Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers.
More in Park Slope: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
Closest on 4 Ave
- 399 4th Avenue (27 ft) (three open items)
- 397 4th Avenue (54 ft) (22 open items)
- 403 4th Avenue (75 ft) (three open items)
- 395 4th Avenue (81 ft) (four open items)
- 393 4th Avenue (133 ft) (eight open items)
- 412 4th Avenue (183 ft) (one open item)
Same tax block (993), closest first
- 284 6th Street (188 ft) (seven open items)
- 286 6th Street (209 ft) (14 open items)
- 288 6th Street (239 ft) (17 open items)
- 292 6th Street (266 ft) (seven open items)
Open-item counts as of November 8, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs