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370 Mcguinness Boulevard, Greenpoint, Brooklyn, NY 11222

BBL 3025060008 (Borough 3, Block 2506, Lot 8) · BIN 3063990 · Last updated: · Greenpoint · ZIP 11222

Also recorded in city data as: 370 Mcguiness Blvd

Summary · as of November 9, 2026

370 Mcguinness Boulevard (Brooklyn, NY 11222; tax lot BBL 3025060008) is a two-family home (building class B9: two-family home, miscellaneous), built around 1899, on a 1,800 sq ft lot zoned M1-1. City tax records list the owner as LEONARD ITWAR; the most recent deed with a stated price is dated September 15, 2003 at $350,000 (per ACRIS). The Department of Finance's final market value for tax year 2027 is $2,978,000. As of November 9, 2026, NYC Open Data shows three DOB jobs with a permit issued but no sign-off. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
LEONARD ITWAR
Building class
B9 · Two-family home, miscellaneous
Year built · units
1899 · 2 res.
Lot area · zoning
1,800 sq ft · M1-1
Market value (DOF)
$2,978,000 FY2027
Last priced deed
$350,000 · 2003-09-15
BBL
3025060008
BIN
3063990

How to cite: NYC Property Facts, “370 Mcguinness Boulevard, Brooklyn, NY 11222 (BBL 3025060008)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/brooklyn/370-mcguinness-boulevard-3025060008. 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)
LEONARD ITWARThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
B9 – Two-family home, miscellaneousThe 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
1899Often an estimate for older buildings.
Floors
2
Units
2 residential / 2 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
1,800 sq ft (25 ft × 72 ft)
Building floor area
1,800 sq ft
Zoning
M1-1The zoning district sets what can be built and used here. Manufacturing district.
Built vs. allowed density (FAR)
1.00 built / 0.00 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 3025060008 (Borough 3, Block 2506, Lot 8) · BIN 3063990BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; last loaded 2026-11-09; 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)
$2,978,000The 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
$178,680The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$25,494Assessed value minus any exemptions.
Tax class
Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
Tax yearRollMarket valueAssessed valueTax class
2027Final$2,978,000$178,6801
2026Final$2,265,000$135,9001
2025Final$2,090,000$125,4001

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; last loaded 2026-11-09

Sales & deed history 2

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.

DateTypePriceSeller (grantor)Buyer (grantee)Doc ID
2003-09-15DEED$350,000Marciniak, Executor, Father Thomas; Estate Of Helen KoslowskiItwar, Leonard; Itwar, Lilawati Ramcharan2003092800178001
1968-04-25DEED$0 / not statedKozlowski Walter; Kozlowski MaryKozlowski HelenBK_6830070500223

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; last loaded 2026-11-09; ACRIS Real Property Legals — city dataset updated 2026-10-08; last loaded 2026-11-09; ACRIS Real Property Parties — city dataset updated 2026-10-08; last loaded 2026-11-09

DOB job filings 3 open of 5

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.

StatusJob #TypeFiledEst. cost
Permitted, not signed off
Permit Entire · 2023-11-30
B00873718-I1
DOB NOW
Alteration2023-05-28$2,000
Permitted, not signed off
Permit Entire · 2020-12-28
B00016906-I1
DOB NOW
Alteration2018-03-22$5,000
Permitted, not signed off
PERMIT ISSUED - ENTIRE JOB/WORK · 2018-01-03
321558202
BIS
A3 – Minor alteration (one type of work)2017-04-13$5,000
Not open
APPLICATION PROCESSED - ENTIRE · 2023-05-25
340890138
BIS
A3 – Minor alteration (one type of work)2023-05-25—
Not open
PLAN EXAM - APPROVED · 2023-05-30
322160040
BIS
A1 – Major alteration (changes use, egress or occupancy)2023-04-25$100

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-08; last loaded 2026-11-09; DOB Job Application Filings (BIS) — city dataset updated 2026-11-08; last loaded 2026-11-09

Work permits 5

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.

IssuedExpiresJob #WorkPermit status
2023-11-302024-09-15B00873718-I1
DOB NOW
Curb Cut
FLING CURB CUT & (2) TWO PARKING SPACES IN CONJUNCTION WITH DOB# 322160040
Permit Issued
2018-03-272018-07-14B00016906-I1
DOB NOW
Sign
TO INSTALL AN ILLUMINATED WALL FLEX ADVERTISING SIGN, STRUCTURE IS FILED UNDER ANOTHER APPLICATION. NO CHANGE IN USE EGRESS OR OCCUPANCY. THIS APPLICATION WILL
Permit Issued
2018-01-032018-07-18321558202
BIS
Alteration / Other / general constructionISSUED (renewal)
2017-04-182017-11-01321558202
BIS
Alteration / Other / general constructionISSUED (initial)
2017-04-182017-11-01321558195
BIS
SignISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-09; last loaded 2026-11-09; 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). The active-DOB count in the summary also includes DOB NOW safety violations, listed in the next section.

No records found in this dataset for this lot.

Source: DOB Violations — city dataset updated 2026-11-09; last loaded 2026-11-09

DOB safety violations (DOB NOW) 0 active of 0

Safety violations DOB NOW publishes for devices such as boilers, elevators and gas piping (Local Law 152). Active means the published status is Active. Dismissed, cured, waived and successfully disputed violations are counted under “resolved or not active” and are not open items. Active ones are included in the summary’s active DOB violation total.

No records found in this dataset for this lot.

Source: DOB Safety Violations (DOB NOW) — city dataset updated 2026-11-09; last loaded 2026-11-09

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 2026-11-09

OATH tickets (all agencies) 0 unpaid of 5

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.

StatusDateAgencyChargeRespondentImposed / paid / balanceTicket #
No balance due Default
PAID IN FULL · DEFAULTED
2025-01-14Sanitation OthersIMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1STLEONARD ITWAR$80 / $80 / $0048801782N
No balance due
PAID IN FULL
2019-08-13Sanitation OthersLOOSE RUBBISHITWAR$100 / $100 / $00208872510
No balance due
PAID IN FULL
2015-05-05Sanitation DeptFAILURE TO CLEAN 18 INCHES INTO STREETITWAR$100 / $100 / —041508714Y
No balance due
PAID IN FULL
2011-08-09Dos - Enforcement AgentsIMPROPER DISPOSAL BEDDING 1ST OFFENSEITWAR$100 / $100 / —041793425N
No balance due
PAID IN FULL
2011-03-01Dos - Enforcement AgentsIMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 1 TO 8 DWELLING UNITSITWAR$25 / $25 / —041523918L

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-09; last loaded 2026-11-09

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; last loaded 2026-11-09; HPD Registration Contacts — city dataset updated 2026-11-04; last loaded 2026-11-09

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 2026-11-09; last loaded 2026-11-09

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 2026-11-09; last loaded 2026-11-09

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 2026-11-09; last loaded 2026-11-09

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 Greenpoint: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on Mcguinness Blvd

Same tax block (2506), closest first

All properties on Mcguinness Blvd, Brooklyn · Brooklyn 11222

Open-item counts as of November 9, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs