377 12th Street, Brooklyn, NY 11215
BBL 3010240066 (Borough 3, Block 1024, Lot 66) · BIN 3023040 · Last updated:
Summary · as of November 6, 2026
377 12th Street (Brooklyn, NY 11215; tax lot BBL 3010240066) is a two-family home (building class B3: two-family home converted from one-family), built around 1910, on a 1,875 sq ft lot zoned R6B. City tax records list the owner as BLAUSTEIN, SIMCHA; per ACRIS, a deed to this owner dated January 25, 2019 lists a price of $1,425,000. The Department of Finance's final market value for tax year 2027 is $4,681,000. As of November 6, 2026, NYC Open Data shows one active DOB violation. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)
- Owner of record
- BLAUSTEIN, SIMCHA
- Building class
- B3 · Two-family home converted from one-family
- Year built · units
- 1910 · 2 res.
- Lot area · zoning
- 1,875 sq ft · R6B
- Market value (DOF)
- $4,681,000 FY2027
- Last priced deed
- $1,425,000 · 2019-01-25
- BBL
- 3010240066
- BIN
- 3023040
- 0Open DOB jobs (permit issued, no sign-off)
- 1Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 0OATH tickets with unpaid balance
How to cite: NYC Property Facts, “377 12th Street, Brooklyn, NY 11215 (BBL 3010240066)”, data as of 2026-11-06, https://nycpropertyfacts.com/ny/brooklyn/377-12th-street-3010240066. 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)
- BLAUSTEIN, SIMCHAThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
- Building class
- B3 – Two-family home converted from one-familyThe Department of Finance’s category for what kind of building this is.
- Land use
- One- & two-family buildingsCity Planning’s broad category of how the lot is used.
- Year built
- 1910Often an estimate for older buildings. Major alteration recorded: 2019, 2019.
- Floors
- 2
- Units
- 2 residential / 2 totalResidential units are apartments; total includes stores and offices.
- Buildings on lot
- 1
- Lot size
- 1,875 sq ft (18.75 ft × 100 ft)
- Building floor area
- 3,387 sq ft
- Zoning
- R6BThe zoning district sets what can be built and used here. Residential district.
- Built vs. allowed density (FAR)
- 1.81 built / 2.00 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 3010240066 (Borough 3, Block 1024, Lot 66) · BIN 3023040BBL 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; data as of 2026-11-06; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01
Tax assessment
How the Department of Finance values this lot for property tax.
- Market value (tax year 2027, final roll)
- $4,681,000The 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
- $280,860The portion of market value that taxes are calculated on (capped by law for small homes).
- Taxable value (final)
- $76,102Assessed value minus any exemptions.
- Tax class
- Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
| Tax year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $4,681,000 | $280,860 | 1 |
| 2026 | Final | $4,417,000 | $265,020 | 1 |
| 2025 | Final | $2,758,000 | $165,480 | 1 |
Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-06
Sales & deed history 3
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 |
|---|---|---|---|---|---|
| 2019-01-25 | DEED | $1,425,000 | Estate Of Joyce M. O'Donnell; O'Donnell, As Administrator, Sean C | Krochmal, Michelle; Blaustein, Simcha | 2019020100317001 |
| 2002-09-30 | DEED | $0 / not stated | O'Donnell, Hugh Collins; O'Donnell, Joyce May | O'Donnell, Joyce May | FT_3300008944830 |
| 1969-09-10 | DEED | $0 / not stated | Deleo Joseph J; Deleo Maria | Odonnell Joyce M; Odonnell Hugh C | BK_6930036100151 |
Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-06; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-06
DOB job filings 0 open of 6
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 · 2021-08-11 | 340803152 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2021-01-20 | $47,400 |
| Not open SIGNED OFF · 2021-09-16 | 322021600 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2020-01-02 | $19,600 |
| Not open LOC Issued · 2022-08-03 | B00246315-I1 DOB NOW | Alteration | 2019-10-30 | $1,000 |
| Not open SIGNED OFF · 2022-02-01 | 340690540 BIS | A3 – Minor alteration (one type of work) | 2019-07-31 | — |
| Not open SIGNED OFF · 2022-09-23 | 321970284 BIS | A1 – Major alteration (changes use, egress or occupancy) | 2019-06-24 | $800,000 |
| Not open SIGNED OFF · 2022-02-01 | 321964157 BIS | A2 – Alteration with multiple work types (no change to use/occupancy) | 2019-06-24 | $37,000 |
Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Job Application Filings (BIS) — city dataset updated 2026-11-05; data as of 2026-11-06
Work permits 16
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 |
|---|---|---|---|---|
| 2021-06-21 | 2022-06-12 | 340803152 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2021-05-21 | 2022-05-21 | B00246315-I1 DOB NOW | Construction Fence Temporary construction fence. | Signed-off |
| 2021-05-21 | 2022-05-23 | 321970284 BIS | Alteration | ISSUED (renewal) |
| 2021-02-23 | 2022-02-23 | 321964157 BIS | Equipment work / Sprinkler | ISSUED (initial) |
| 2021-01-29 | 2021-06-12 | 340803152 BIS | Equipment work / Other / general construction | ISSUED (initial) |
| 2020-12-04 | 2021-05-23 | B00246315-I1 DOB NOW | Construction Fence Temporary construction fence. | Signed-off |
| 2020-12-02 | 2021-05-23 | 322021600 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2020-12-02 | 2021-05-23 | 321970284 BIS | Alteration | ISSUED (renewal) |
| 2020-07-01 | 2021-07-01 | 321970284 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2020-06-10 | 2020-11-30 | B00246315-I1 DOB NOW | Construction Fence Temporary construction fence. | Signed-off |
| 2020-05-29 | 2020-11-30 | 322021600 BIS | Equipment work / Other / general construction | ISSUED (renewal) |
| 2020-05-29 | 2020-11-30 | 321970284 BIS | Alteration | ISSUED (renewal) |
Showing 12 of 16 records. The API and the source dataset have the full list.
Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-05; data as of 2026-11-06; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31
DOB violations 1 active of 4
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 | 2024-11-06 | C-CONSTRUCTION OTHER OPTIONAL | AT TIME OF INSPECTION OBSERVED AT 1ST FLOOR LIVING ROOM WALL AND CEILING CRACK, ALSO AT SECOND FLOOR WALL HAVE CRACK. | V110624C24-02904 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2021-09-29 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*092921AEUHAZ100247 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2021-09-29 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*092921AEUHAZ100246 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2021-04-14 | AEUHAZ1-FAIL TO CERTIFY CLASS 1 NONE | FAILURE TO CERTIFY CORRECTION ON IMMEDIATELY HAZARDOUS (CLASS 1) ECB VIOLATION | V*041421AEUHAZ100210 |
Source: DOB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
ECB violations (DOB) 0 active of 8
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.
| Status | Issued | Severity | What it was for | Penalty / paid / balance | ECB # |
|---|---|---|---|---|---|
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2021-07-01 | CLASS - 1 | NO 40HR SST CERT ATOI OF ACTIVE 3STYALT1 W/2WORKERS ONSITE I REQUESTEDFOR MR PATRICK GEORGE TO PROVIDE 40HR SSTCERT BE ONLY PRODUCED 30HR OSHA TRAINING.ALL NYC WORKERS REQUIRED TO BE TRAINED 40HRS SITE SAFETY T | $1,250 / $1,250 / $0 | 35579580Z |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2021-01-12 | CLASS - 1 | FAILURE TO SAFEGUARD/FAILURE TO MAINTAIN SAFETY OPERATIONS-NO/MISSING/INADEQUATE-GUARDRAILS.NOTED:AT TIME OF INSPECTION OF A 3 STORY ALTERATION 1 ACTIVE JOBSITE I OBSERVED NO/MISSING/INADEQUATE GUARDRAILS ON 3 | $2,500 / $2,500 / $0 | 35545369H |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2021-01-12 | CLASS - 2 | WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS &/OR APPROVEDAMENDMENTS-(STRUCTURAL PLANS).NOTED:AT TIME OF INSPECTION OF A 3 STORYALTERATION 1 ACTIVE JOB I OBSERVED STRUCTURAL STEEL VERTICAL COLUMNS | $0 / $0 / $0 | 35545370P |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2021-01-12 | CLASS - 2 | FAILURE TO PROTECT ADJOINING PROPERTIES-NO(MISSING OVERHEAD & ROOF PROTECTION OF PROPERTIES EXP#1,2,4.NOTED:AT TIME OF INSPECTION OF A 3 STORY HORIZONTAL & VERTICAL ENLARGEMENT I OBSERVED NO/MISSING OVERHEAD PR | $1,250 / $1,250 / $0 | 35545368X |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2020-02-28 | CLASS - 1 | FAILURE TO MAINTAIN/DISPLAY ON SITE DOCUMENTS REQUIRED BY CHAPT 33-PE DRAWINGS. AT THE TIME AT MT INSPECTION I OBSERVED TEMPORARY STRUCTURALSHORING AT THE 2ND STY LEVEL. UPON MY REQUEST FOR THE PROFESSIONAL ENG | $1,250 / $1,250 / $0 | 35479777Y |
| Resolved Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED | 2021-07-01 | CLASS - 1 | NO 40HR SITE SAFETY TRAINING (SST 40HRS) ATOI OF ACTIVE 3STYALT1 W/2WORKERS ONSITE.I REQUESTED FOR MR PATRICK GEORGE TO PROVIDE 40HR SST CARD NONE WAS PROVIDED.HE ISNT TRAINED ADEQUATELY.ITS RESPONSIBILITY OF O | $1,250 / $1,254 / $0 | 35579581K |
| Resolved Hearing: CURED/IN-VIO · Certification: CURE ACCEPTED | 2021-07-01 | CLASS - 2 | DOC TO BE KEPT ONSITE ATOI OF 3STYALT1 W/3WORKERS ONSITE I REQUESTED FOR PRETASK (ILLEGIBLE) SITE SAFETY EVALUATION&LOGBOOK,THEY WERE EITHERNOT PROVIDED &/OR INADEQUATE.THESE DOCS ARE TO BE ONSITE (ILLEGIBLE) T | $0 / $0 / $0 | 35579579L |
| Resolved Hearing: DISMISSED · Certification: CERTIFICATE ACCEPTED | 2021-08-14 | CLASS - 1 | UNLAWFULLY CONTINUED WORK WHILE ON NOTICE OF A STOP WORK ORDER. AT TIME OF INSPECTION OF 3 STORY ALT BUILDING UPON REVIEW DEPT RECORDS OBSERVED BUILDING UNDER PARTIAL STOP WORK ORDER UNDER COMPLAINT #3783178 ON | $0 / $0 / $0 | 35582855X |
Source: DOB ECB Violations — city dataset updated 2026-11-05; data as of 2026-11-06
OATH tickets (all agencies) 0 unpaid of 11
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 | 2022-05-14 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | BLAUSTEIN SIMCHA | $50 / $70 / $0 | 047494255H |
| No balance due HEARING COMPLETED · DISMISSED | 2021-08-14 | Dept. Of Buildings | UNLAWFULLY CONTINUED WORK WHILE ON NOTICE OF A STOP WORK ORDER | REDLINE CONSTRUCTION MA | $0 / $0 / $0 | 035582855X |
| No balance due PAID IN FULL · IN VIOLATION | 2021-07-01 | Dept. Of Buildings | FAILED TO ENSURE WORKERS SUCCESSFULLY COMPLETED REQ. TRAINING | SIMCHA BLAUSTEIN | $1,250 / $1,254 / $0 | 035579581K |
| No balance due HEARING COMPLETED · IN VIOLATION | 2021-07-01 | Dept. Of Buildings | FAILURE TO MAINTAIN DISPLAY ON SITE DOCUMENTS REQUIRED BY BC CHAPTER33 | REDLINE CONSTRUCTION MA | $0 / $0 / $0 | 035579579L |
| No balance due PAID IN FULL · IN VIOLATION | 2021-07-01 | Dept. Of Buildings | FAILED TO ENSURE WORKERS SUCCESSFULLY COMPLETED REQ. TRAINING | REDLINE CONSTRUCTION MA | $1,250 / $1,250 / $0 | 035579580Z |
| No balance due PAID IN FULL · IN VIOLATION | 2021-01-12 | Dept. Of Buildings | FAILURE TO INSTITUTE MAINTAIN SAFETY EQUIPMENT ETC.,- NO GUARD RAILS | REDLINE CONSTRUCTION MA | $2,500 / $2,500 / $0 | 035545369H |
| No balance due HEARING COMPLETED · IN VIOLATION | 2021-01-12 | Dept. Of Buildings | WORK DOES NOT CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AMENDMENTS | REDLING CONSTRUCTION MA | $0 / $0 / $0 | 035545370P |
| No balance due PAID IN FULL · IN VIOLATION | 2021-01-12 | Dept. Of Buildings | MISCELLANEOUS VIOLATIONS | REDLINE CONSTRUCTION MA | $1,250 / $1,250 / $0 | 035545368X |
| No balance due PAID IN FULL · IN VIOLATION | 2020-02-28 | Dept. Of Buildings | FAILURE TO MAINTAIN DISPLAY ON SITE DOCUMENTS REQUIRED BY BC CHAPTER33 | REDLINE CONSTRUCTION MA | $1,250 / $1,250 / $0 | 035479777Y |
| No balance due PAID IN FULL | 2017-05-12 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | JOYCE M | $100 / $100 / $0 | 0195118175 |
| No balance due PAID IN FULL | 2014-10-25 | Dept Of Transportation | FAILURE TO SEAL STREET OPENING JOINTS | KEYSPAN ENERGY DELIVERY N Y C | $250 / $250 / — | 0187199349 |
Source: OATH Hearings Division Case Status — city dataset updated 2026-11-06; data as of 2026-11-06
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.
No HPD registration found. Registration is required for buildings with 3 or more apartments (and for 1–2 family homes where neither the owner nor family lives there).
Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-06; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-06
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 2026-11-05; data as of 2026-11-06
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 2026-11-06; data as of 2026-11-06
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 2026-11-06; data as of 2026-11-06
Nearby properties
More in Park Slope: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets
On 12 St
- 376a 12th Street
- 376 12th Street (13 open items)
- 375a 12th Street
- 375 12th Street
- 379 12th Street
- 374 12th Street
- 380 12th Street
- 373 12th Street
- 382 12th Street (two open items)
- 372 12th Street (three open items)
Same tax block (1024)
- 491 6th Avenue (two open items)
- 487 6th Avenue (four open items)
- 485 6th Avenue (one open item)
- 481 6th Avenue (two open items)
- 418 11th Street (31 open items)
- 420 11th Street
- 422 11th Street (two open items)
- 426 11th Street
- 428 11th Street (two open items)
- 430 11th Street (two open items)
Open-item counts as of November 6, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs