347 Jefferson Avenue, Brooklyn, NY 11221
BBL 3018300078 (Borough 3, Block 1830, Lot 78) · BIN 3052115 · Last updated: · Bedford-Stuyvesant (East) · ZIP 11221
Summary · as of November 8, 2026
347 Jefferson Avenue (Brooklyn, NY 11221; tax lot BBL 3018300078) is a 4-unit walk-up apartment building (building class C3: walk-up apartments, four families), built around 1905, on a 1,525 sq ft lot zoned R6A. City tax records list the owner as 20 HENRY ST. REALTY INC.; per ACRIS, a deed to this owner dated December 20, 2019 lists a price of $2,128,500. The Department of Finance's final market value for tax year 2027 is $820,000. As of November 8, 2026, NYC Open Data shows no open DOB jobs, active DOB/ECB violations, open HPD violations or unpaid OATH tickets for this lot. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- 20 HENRY ST. REALTY INC.
- Building class
- C3 · Walk-up apartments, four families
- Year built · units
- 1905 · 4 res.
- Lot area · zoning
- 1,525 sq ft · R6A
- Market value (DOF)
- $820,000 FY2027
- Last priced deed
- $2,128,500 · 2019-12-20
- BBL
- 3018300078
- BIN
- 3052115
- 0Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “347 Jefferson Avenue, Brooklyn, NY 11221 (BBL 3018300078)”, data as of 2026-11-08, https://nycpropertyfacts.com/ny/brooklyn/347-jefferson-avenue-3018300078. 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)
- 20 HENRY ST. REALTY INC.The owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- C3 – Walk-up apartments, four 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
- 1905Often an estimate for older buildings. Major alteration recorded: 2000.
- Floors
- 3
- Units
- 4 residential / 4 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,525 sq ft (19 ft × 80.25 ft)
- Building floor area
- 2,992 sq ft
- Zoning
- R6AThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 1.96 built / 3.00 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 3018300078 (Borough 3, Block 1830, Lot 78) · BIN 3052115BBL 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)
- $820,000The 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
- $369,000The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $92,933Assessed 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 | $820,000 | $369,000 | 2A |
| 2026 | Final | $683,000 | $307,350 | 2A |
| 2025 | Final | $568,800 | $255,960 | 2A |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-08
Sales & deed history 13
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 |
|---|---|---|---|---|---|
| 2019-12-20 | DEED | $2,128,500 | Hoffman, Jeremy; Kass, Lisa | 20 Henry St. Realty Inc. | 2020010300589001 |
| 2013-01-15 | DEED | $1,200,000 | Arboleda, Jorge; Borgman, Catherine | Kass, Lisa; Hoffman, Jeremy | 2014011701052001 |
| 2005-07-29 | DEED | $618,000 | Vilacha, Andrew | Arboleda, Jorge; Borgman , Catherine | 2005092800873001 |
| 2004-04-16 | DEED | $515,000 | Restrepo, Maria; Mostafa, Saber; Guerra, Nelson E | Vilacha, Andrew | 2004041901460001 |
| 2002-04-10 | DEED | $0 / not stated | Big Apple Holding Corp | Guerra, Nelson E; Restrepo, Maria | FT_3270008705927 |
| 2002-04-10 | DEED | $0 / not stated | Restrepo, Maria; Guerra, Nelson E | Mostafa, Saber; Restrepo, Maria; Guerra, Nelson E | FT_3410008705941 |
| 2000-10-26 | DEED | $0 / not stated | Latham, Dinsley G/Dec'D; Mitchell, Tyrone/Dist; Latham, Ansonia/Dist | Big Apple Holding Holding Corp | FT_3920007464392 |
| 1988-04-05 | DEED | $0 / not stated | City Of New York | Latham, Dinsley G | FT_3080001357108 |
| 1979-04-18 | DEED | $0 / not stated one deed covering 2895 lots; price is for all of them | Commissioner Of Finacne Of The City Of New York; Commissioner Of Finanace Of The City Of New York; Commissioner Of Fiannce Of The City Of New York; Commissioner Of Finance Of City Of New York; Administrator Of Finance Of The City Of New York; Finance Admin; Commissioner Of Finance Of The City Of New York `; Commissioner Of Finance Of The City Of Ny; Commissioner Of Finance Of Th City Of New York; Commissioenr Of Finance Of The City Of New York; Commissioner Of Finance Of The City O Fne Wyork; Commissioner Of Finance Of The City Of New York; Commissioner Of Finace Of The City Of New York; Finance Administrator Of The City Of New York; Commissioner Of Fiance Of The City Of New York | The City Ofnew York; The City Of Newy Ork; The City Of New York; The City Of New York; City Of Ny | BK_7930106700274 |
| 1973-12-27 | DEED | $0 / not stated one deed covering 2501 lots; price is for all of them | ; Zwickel, Yetta; Finance Admin Of City Of Ny | ; City Of Ny | BK_7330068100138 |
| 1971-06-14 | DEED | $0 / not stated | Brooks Lecynth | Watson Mathew | BK_7130048800231 |
| 1968-08-20 | DEED | $0 / not stated | Sinckler Glenville | Brooks Lecynth | BK_6830080200276 |
| 1966-06-23 | DEED | $0 / not stated one deed covering 720 lots; price is for all of them | Dept Of Finance Of The City Of Ny; City Of New York (Dept Of Finance; Dept Of Finance; City Of N Y Dept Of Finance; City Of N Y Dept Of Finance; City Of New York(Dept Of Finance); City Of New York (Dept Of Finanace); City Of New York; Cityo Fnew York (Dept Of Finance); City Of Ny; City Of New York Dept Of Finance; City Of New York (Dep Of Finance); The City Of New York Depart Of Finance; City Of Ny Dept Of Finance; City Of New York Dep Of Finance; City Of New York (Dept Of Finance); City Of New York Dept Of Welfare; Dept Of Finance City Of Ny; County Of New York Dept Of Finance; City Of New York Dept Finance; City Of New York (Dept Finance) | City Of New York; The City Of Ny; The City Of New York; City Of New Yrk; City Of Ne Wyork; City Of New York; City Of N Y; City Of Ny | BK_6630016900291 |
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 0 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 |
|---|---|---|---|---|
| Not open SIGNED OFF · 2002-04-12 | 301102447 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2000-11-22 | $20,000 |
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 |
|---|---|---|---|---|
| 2000-12-19 | 2001-12-19 | 301102447 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2000-12-19 | 2001-10-10 | 301102447 BIS | Alteration | 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 0 active of 0
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).
No records found in this dataset for this lot.
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 60
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 PAID IN FULL | 2023-07-02 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES PLACED OUT PRIOR TO 8PM WITHOUT A RECEPTACLE | 20 HENRY ST REALTY INC | $50 / $50 / $0 | 047947433K |
| No balance due PAID IN FULL | 2021-06-10 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | 20 HENRY ST REALTY INC | $25 / $25 / $0 | 047199688L |
| No balance due PAID IN FULL | 2021-05-11 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | 20 HENRY ST REALTY INC | $100 / $100 / $0 | 047183167J |
| No balance due PAID IN FULL | 2019-10-17 | Sanitation Others | STORAGE OF RECEPTACLES | HOFFMAN | $100 / $100 / $0 | 0209320733 |
| No balance due PAID IN FULL | 2018-12-26 | Sanitation Recycling | FAILURE TO CLEAN 18 INCHES INTO STREET | HOFFMAN | $100 / $100 / $0 | 040489258M |
| No balance due PAID IN FULL | 2017-10-15 | Sanitation Recycling | STORAGE OF RECEPTACLES | HOFFMAN | $100 / $100 / $0 | 042686598Y |
| No balance due PAID IN FULL | 2017-10-14 | Dos - Enforcement Agents | IMPROPER RECEPTACLES 1ST OFFENSE | HOFFMAN | $100 / $100 / $0 | 044380945K |
| No balance due PAID IN FULL | 2017-07-17 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | HOFFMAN | $25 / $25 / $0 | 043956016Z |
| No balance due Default PAID IN FULL · DEFAULT | 2016-05-28 | Sanitation Dept | IMPROPER RECEPTACLES 1ST OFFENSE | HOFFMAN | $130 / $130 / — | 041376686Y |
| No balance due PAID IN FULL | 2015-04-13 | Sanitation Dept | RECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITS | HOFFMAN | $25 / $25 / — | 042186542Y |
| No balance due PAID IN FULL | 2015-03-31 | Sanitation Dept | STORAGE OF RECEPTACLES - 2ND OFFENSE | HOFFMAN JEREMY | $100 / $100 / — | 041688078N |
| No balance due PAID IN FULL · IN VIOLATION | 2014-04-08 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES | HOFFMAN | $100 / $100 / — | 044360100K |
Showing 12 of 60 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
- 317156
- Last registered
- 2026-08-12
- Registration valid until
- 2027-09-01 CurrentRegistrations must be renewed every year.
| Role | Name | Company | Business city |
|---|---|---|---|
| Shareholder | Kit Mok | Brooklyn, Ny | |
| Corporateowner | 20 HENRY STREET REALTY INC. | Brooklyn, Ny | |
| Officer | Carl Mok | Brooklyn, Ny | |
| Sitemanager | Carl Mok | ||
| Shareholder | Carl Mok | Brooklyn, Ny | |
| Headofficer | Carl Mok | Brooklyn, Ny | |
| Individualowner | Carl Mok | Brooklyn, Ny | |
| Agent | Carl Mok | 20 Henry Street Realty Inc. | 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 17
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.
| Status | Class | Issued | Apt | Condition |
|---|---|---|---|---|
| Closed Violation Dismissed · 2026-06-17 | A | 2026-05-05 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2025-07-21 | A | 2025-06-10 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2024-05-01 | A | 2024-04-10 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2023-05-05 | A | 2023-03-23 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2022-05-13 | A | 2022-02-25 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Dismissed · 2021-05-05 | A | 2021-04-09 | (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS. | |
| Closed Violation Closed · 2016-10-11 | B | 2016-09-02 | SECTION 27-2021 ADM CODE PROVIDE SUFFICIENT, PROPER AND SEPARATE METAL RECEPTACLES FOR THE DEPOSIT OF GARBAGE, RUBBISH AND OTHER WASTE MATERIAL AND ARRANGE FOR COLLECTION AND DISPOSAL OF SUCH MATERIAL. AT FRONT AREAWAY | |
| Closed Violation Closed · 2014-04-25 | A | 2005-10-19 | 3 | SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT , EAST WALL IN THE BATHROOM LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-04-25 | B | 2005-10-19 | 3 | SECTION 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE LOCK AT DOOR IN THE 4th ROOM FROM NORTH AT EAST LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-04-25 | A | 2005-10-19 | 3 | SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT , EAST WALL, CEILING IN THE KITCHEN LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-04-25 | B | 2005-10-19 | 3 | SECTION 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE DOOR IN THE BATHROOM LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-06-11 | A | 2005-10-19 | 3 | SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT , 1st DOOR FRAME FROM SOUTH AT WEST WALL, 1st DOOR FRAME FROM NORTH AT EAST WALL IN THE FOYER LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-04-25 | A | 2005-10-19 | 3 | SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT , NORTH WALL IN THE 1st ROOM FROM NORTH AT EAST LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-06-11 | B | 2005-10-19 | 3 | SECTION 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING IN THE PRIVATE HALLWAY LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-04-25 | A | 2005-10-19 | 3 | SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT , SOUTH WALL IN THE 4th ROOM FROM NORTH AT WEST LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-04-25 | A | 2005-10-19 | 3 | SECTION 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT , SOUTH WALL IN THE 4th ROOM FROM NORTH AT EAST LOCATED AT APT 3, 2nd STORY, 1st APARTMENT FROM SOUTH AT WEST |
| Closed Violation Closed · 2014-04-25 | B | 2004-08-23 | 4 | SECTION 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE DOOR IN THE 1st ROOM FROM NORTH AT EAST LOCATED AT APT 4, 3rd STORY, 1st APARTMENT FROM SOUTH AT WEST |
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) 0
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.
No records found in this dataset for this lot.
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 Bedford-Stuyvesant (East): Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
Closest on Jefferson Ave
- 349 Jefferson Avenue (19 ft) (two open items)
- 345 Jefferson Avenue (21 ft) (11 open items)
- 351 Jefferson Avenue (39 ft) (44 open items)
- 353 Jefferson Avenue (59 ft) (15 open items)
- 355 Jefferson Avenue (77 ft) (86 open items)
- 357 Jefferson Avenue (96 ft) (93 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