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79 Adelphi Street, Brooklyn, NY 11205

BBL 3020450031 (Borough 3, Block 2045, Lot 31) · BIN 3058095 · Last updated:

Summary · as of October 31, 2026

79 Adelphi Street (Brooklyn, NY 11205; tax lot BBL 3020450031) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 1901, on a 1,875 sq ft lot zoned R5B. City tax records list the owner as MARS DEVELOPMENT GROUP, LLC. The Department of Finance's final market value for tax year 2027 is $1,586,000. As of October 31, 2026, NYC Open Data shows six open HPD violations. There were no 311 requests in the past 12 months and two HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
MARS DEVELOPMENT GROUP, LLC
Building class
C0 · Three-family walk-up
Year built · units
1901 · 3 res.
Lot area · zoning
1,875 sq ft · R5B
Market value (DOF)
$1,586,000 FY2027
Last priced deed
—
BBL
3020450031
BIN
3058095

How to cite: NYC Property Facts, “79 Adelphi Street, Brooklyn, NY 11205 (BBL 3020450031)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/79-adelphi-street-3020450031. 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)
MARS DEVELOPMENT GROUP, LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
C0 – Three-family walk-upThe 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
1901Often an estimate for older buildings.
Floors
2
Units
3 residential / 3 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
1,902 sq ft
Zoning
R5BThe zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
1.01 built / 1.50 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 3020450031 (Borough 3, Block 2045, Lot 31) · BIN 3058095BBL 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; data as of 2026-11-02; 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)
$1,586,000The 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
$95,160The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$8,046Assessed 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$1,586,000$95,1601
2026Final$1,479,000$88,7401
2025Final$1,433,000$85,9801

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02

Sales & deed history 7

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
2018-09-15DEED$0 / not statedMarshall, AndrewMars Development Group, Llc2018112800176001
2002-09-27DEED$0 / not statedThe Hetrick-Martin InstituteMarshall, AndrewFT_3760008948476
2001-06-16DEED$0 / not statedInteroffice IncHetrick-Martin InstituteFT_3780007737778
2000-03-30DEED$0 / not statedEdmunds, Kenji; Dany, Gloria/Dec'DInteroffice IncFT_3240007176924
1989-05-23DEED$0 / not statedCity Of New YorkDancy, GloriaFT_3910001459691
1983-04-21DEED$0 / not stated
one deed covering 35 lots; price is for all of them
Commissioner Of FinanceNew York CityFT_3820000956382
1975-10-17DEED$0 / not statedRonger TanyaGray MildredBK_7530080801944

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02

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
PLAN EXAM - DISAPPROVED · 2001-11-01
301224388
BIS
A1 – Major alteration (changes use, egress or occupancy)2001-08-09$3,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31

Work permits 0

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.

No records found in this dataset for this lot.

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-02; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

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 2026-11-02; data as of 2026-11-02

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 2026-10-31; data as of 2026-11-02

OATH tickets (all agencies) 0 unpaid of 49

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
PAID IN FULL
2026-05-17Dos - Enforcement AgentsSTORAGE OF RECEPTACLES NON-COLLECTION DAYMARS DEVELOPMENT GROUP LLC$50 / $50 / $0048634228K
No balance due
HEARING COMPLETED · DISMISSED
2021-10-06Sanitation OthersSTORAGE OF RECEPTACLESMARS DEVELOPMENT GROUP LLC$0 / $0 / $0047144361L
No balance due Default
PAID IN FULL · DEFAULT
2016-11-11FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITSMARSHALL$25 / $25 / —0192674662
No balance due Default
PAID IN FULL · DEFAULT
2016-06-17IMPROPER DISPOSAL OF RECYC MISUSE OF CONTAINER 1 TO 8 DWELLING UNITSMARSHALL$25 / $25 / —0192001040
No balance due
PAID IN FULL
2015-06-12Sanitation DeptLOOSE RUBBISH - 2ND OFFENSEMARSHALL ANDREW$100 / $100 / —042177024J
No balance due Default
PAID IN FULL · DEFAULT
2015-02-14LOOSE RUBBISHMARSHALL$300 / $300 / —0185485549
No balance due
PAID IN FULL
2014-06-13IMPROPER MISUSED CURBSIDE RECYCLING CONTAINER 1 TO 8 DWELLING UNITSMARSHALL$25 / $25 / —0185466582
No balance due
PAID IN FULL · IN VIOLATION
2013-03-18Dos - Enforcement AgentsSIDEWALK OBSTRUCTIONMARSHALL$100 / $100 / —041606392J
No balance due
PAID IN FULL
2012-07-17Dos - Enforcement AgentsRECYC PLACED FOR COLLECTION W/NON-RECYC(1 TO 8 DWELLING UNITS)MARSHALL$25 / $25 / —041365797N
No balance due
PAID IN FULL
2011-10-03Dos - Enforcement AgentsSTORAGE OF RECEPTACLES - 2ND OFFENSEMARSHALL ANDREW$100 / $100 / —041413611J
No balance due
PAID IN FULL
2011-05-16Dos - Enforcement AgentsSTORAGE OF RECEPTACLESMARSHALL$100 / $100 / —041423405H
No balance due Default
PAID IN FULL · DEFAULTED
2011-05-14Sanitation OthersRECYC PLACED FOR COLLECTION W NON-RECYC 1 TO 8 DWELLING UNITSMARSHALL ANDREW C O EWART$25 / $25 / —0174141285

Showing 12 of 49 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-02

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
182795
Last registered
2022-09-16
Registration valid until
2023-09-01 ExpiredRegistrations must be renewed every year.
RoleNameCompanyBusiness city
IndividualownerEwart MarshallBrooklyn, Ny
SitemanagerEwart Marshall

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02

HPD housing-code violations 6 open of 14

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.

StatusClassIssuedAptCondition
Open
Nov Sent Out · 2026-05-01
A2026-05-01(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.
Open
Info Nov Sent Out · 2025-11-18
I2025-11-18§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Open
Nov Sent Out · 2025-06-06
A2025-06-06(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.
Open
Nov Sent Out · 2024-04-08
A2024-04-08(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.
Open
Nov Sent Out · 2023-03-21
A2023-03-21(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.
Open
Nov Sent Out · 2022-02-23
A2022-02-23(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 · 2025-08-15
I2024-11-25§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2025-08-15
I2023-11-17§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2022-09-19
I2022-02-23§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2021-04-23
A2021-04-07(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 · 2018-10-31
I2018-10-15§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2018-01-17
I2017-11-17§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2018-01-17
I2016-11-03§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE
Closed
Violation Dismissed · 2018-01-17
I2015-10-07§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PENALTIES, PROHIBITED FROM CERTIFYING VIOLATIONS, AND DENIED THE RIGHT TO RECOVER POSSESSION OF PREMISE

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-02; data as of 2026-11-02

HPD complaints 2

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.

ReceivedStatusAptProblem(s)Outcome
2024-04-17CLOSE3Unsanitary Condition – Mold
Door/Window – Window Frame
Unsanitary Condition – Pests
The Department of Housing Preservation and Development inspected the following conditions. No violations were issued. The complaint has been closed.
2024-01-07CLOSE3FHeat/Hot Water – Apartment OnlyThe Department of Housing Preservation and Development contacted an occupant of the apartment and verified that the following conditions were corrected. The complaint has been closed. If the condition

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-02; data as of 2026-11-02

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 2026-11-02; data as of 2026-11-02

Nearby properties

On Adelphi St

Same tax block (2045)

All properties on Adelphi St, Brooklyn · All of Brooklyn 11205 (Bedford-Stuyvesant (West))

Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs