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171 Dwight Street, Carroll Gardens-Cobble Hill-Gowanus-Red Hook, Brooklyn, NY 11231

BBL 3006000004 (Borough 3, Block 600, Lot 4) · BIN 3008836 · Last updated: · Carroll Gardens-Cobble Hill-Gowanus-Red Hook · ZIP 11231

Summary · as of November 9, 2026

171 Dwight Street (Brooklyn, NY 11231; tax lot BBL 3006000004) is a 1-unit office building (building class O8: office building (subtype O8)), built around 1950, on a 2,500 sq ft lot zoned M1-1. City tax records list the owner as NANCO REAL ESTATE LLC; per ACRIS, a deed to this owner dated December 29, 2005 lists a price of $500,000. The Department of Finance's final market value for tax year 2027 is $280,000. As of November 9, 2026, NYC Open Data shows no open DOB jobs, active DOB or DOB NOW safety violations, active 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
NANCO REAL ESTATE LLC
Building class
O8 · Office building
Year built · units
1950 · 1 res.
Lot area · zoning
2,500 sq ft · M1-1
Market value (DOF)
$280,000 FY2027
Last priced deed
$500,000 · 2005-12-29
BBL
3006000004
BIN
3008836

How to cite: NYC Property Facts, “171 Dwight Street, Brooklyn, NY 11231 (BBL 3006000004)”, data as of 2026-11-09, https://nycpropertyfacts.com/ny/brooklyn/171-dwight-street-3006000004. 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)
NANCO REAL ESTATE LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
O8 – Office building (subtype O8)The Department of Finance’s category for what kind of building this is.
Land use
Mixed residential & commercialCity Planning’s broad category of how the lot is used.
Year built
1950Often an estimate for older buildings. Major alteration recorded: 2006.
Floors
2
Units
1 residential / 2 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,500 sq ft (25 ft × 100 ft)
Building floor area
2,329 sq ft (incl. 1,639 sq ft commercial)
Zoning
M1-1The zoning district sets what can be built and used here. Manufacturing district.
Built vs. allowed density (FAR)
0.93 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 3006000004 (Borough 3, Block 600, Lot 4) · BIN 3008836BBL 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)
$280,000The 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
$126,000The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$121,860Assessed value minus any exemptions.
Tax class
Tax class 4 – commercial / industrial
Tax yearRollMarket valueAssessed valueTax class
2027Final$280,000$126,0004
2026Final$272,000$122,4004
2025Final$257,000$115,6504

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

Sales & deed history 4

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
2005-12-29DEED$500,000Ercole, Joseph CNanco Real Estate Llc2006010500739002
1987-05-20DEED$0 / not stated
one deed covering 2 lots; price is for all of them
Dwight St Realty Dba; Costa, RichardErcole, Joseph CFT_3840001284784
1973-11-21DEED$0 / not stated
one deed covering 2 lots; price is for all of them
Ond Equity CorpDwight St Realty Co; Costa RichardBK_7330067301445
1973-11-21DEED$0 / not stated
one deed covering 2 lots; price is for all of them
International Paint Co IncOnd Equity CorpBK_7330067301447

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 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.

StatusJob #TypeFiledEst. cost
Not open
SIGNED OFF · 2014-03-20
302077231
BIS
A1 – Major alteration (changes use, egress or occupancy)2006-02-01$20,000

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 6

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
2013-01-302014-01-30302077231
BIS
Plumbing / PlumbingISSUED (renewal)
2010-11-182011-11-18302077231
BIS
Plumbing / PlumbingISSUED (renewal)
2007-07-182008-02-09302077231
BIS
AlterationISSUED (renewal)
2006-02-102007-02-10302077231
BIS
Plumbing / PlumbingISSUED (initial)
2006-02-092006-12-31302077231
BIS
Construction equipment (scaffold, fence, shed) / Construction equipmentISSUED (initial)
2006-02-092007-02-09302077231
BIS
AlterationISSUED (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 7

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.

StatusIssuedTypeDescriptionNumber
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2025-11-14LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTIONV*111425LBLVIO08444
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTIONV*063023LBLVIO33298
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2023-06-30LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTIONV*063023LBLVIO12930
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2023-06-20LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTIONV*062023LBLVIO33823
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2023-06-20LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTIONV*062023LBLVIO12424
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2023-04-25LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED-FAILURE TO FILE 2022 EXTERNAL LOW PRESSURE INSPECTIONV*042523LBLVIO16768
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2020-01-17LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORTV*011720LBLVIO01641

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

DOB safety violations (DOB NOW) 0 active of 7

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 active DOB NOW safety violations for this lot.

7 resolved or not active
StatusIssuedTypeDeviceNumberRemarks
Not active
Dismissed
2025-11-14LBLVIOBoiler111425LBLVIO08444VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION
Not active
Dismissed
2023-06-30LBLVIOBoiler063023LBLVIO33298VIOLATION ISSUED-FAILURE TO FILE 2021 EXTERNAL LOW PRESSURE INSPECTION
Not active
Dismissed
2023-06-30LBLVIOBoiler063023LBLVIO12930VIOLATION ISSUED-FAILURE TO FILE 2020 EXTERNAL LOW PRESSURE INSPECTION
Not active
Dismissed
2023-06-20LBLVIOBoiler062023LBLVIO12424VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION
Not active
Dismissed
2023-06-20LBLVIOBoiler062023LBLVIO33823VIOLATION ISSUED-FAILURE TO FILE 2019 EXTERNAL LOW PRESSURE INSPECTION
Not active
Dismissed
2023-04-25LBLVIOBoiler042523LBLVIO16768VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2022 INSPECTION REPORT
Not active
Dismissed
2020-01-17LBLVIOBoiler011720LBLVIO01641VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT

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 7

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
HEARING COMPLETED · IN VIOLATION
2019-01-11Sanitation PiuILLEGAL DUMPING OPERATOR OF VEHICLE 1ST OFFENSECARBONELL BAEZ$4,000 / $4,000 / $00204138340
No balance due
HEARING COMPLETED · IN VIOLATION
2019-01-11Sanitation PiuILLEGAL DUMPING OWNER OF VEHICLE 1ST OFFENSEETNA CONTRACTING INC$4,000 / $4,000 / $00204138330
No balance due
PAID IN FULL
2018-07-18Sanitation PiuSPILLAGE FROM TRUCK OR RECEPTACLEMAURO$100 / $100 / $00195053367
No balance due
PAID IN FULL · IN VIOLATION
2017-08-21Fire Department Of NycCERTIFICATES OF FITNESS AND CERTIFICATES OF QUALIFICATIONETNA CONTRACTING INC$375 / $376 / $0011623090K
No balance due
HEARING COMPLETED · IN VIOLATION
2016-09-20Fire Department Of NycCERTIFICATES OF FITNESS AND CERTIFICATES OF QUALIFICATIONEINA CONTRACTING INC— / — / —011492861M
No balance due
PAID IN FULL · IN VIOLATION
2006-09-12Fire Department Of NycFAIL TO PROVIDE REQUIRED AFFIDAVIT PLANSNANCO REAL ESTATE LLC$250 / $250 / —010951240N
No balance due
PAID IN FULL
2002-12-28$50 / $50 / —0131950042

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 Carroll Gardens-Cobble Hill-Gowanus-Red Hook: Open HPD violations · Active DOB violations · Active ECB violations · Open DOB jobs · Unpaid OATH tickets

Closest on Dwight St

Same tax block (600), closest first

All properties on Dwight St, Brooklyn · Brooklyn 11231

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