# 79 Adelphi Street, Brooklyn, NY 11205 BBL 3020450031 · Block 2045 · Lot 31 · BIN 3058095 Canonical page: https://nycpropertyfacts.com/ny/brooklyn/79-adelphi-street-3020450031 Last updated: 2026-10-31 · Open-item counts as of 2026-10-31 ## Summary 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.) 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. ## Open items | Item | Count | |---|---| | Open DOB jobs (permit issued, not signed off) | 0 | | Active DOB violations | 0 | | Active ECB violations | 0 | | Open HPD violations | 6 | | OATH tickets with unpaid balance | 0 | ## Lot & building - Owner of record: MARS DEVELOPMENT GROUP, LLC - Building class: C0 – Three-family walk-up - Year built: 1901 - Floors: 2 - Units: 3 residential / 3 total - Lot area: 1,875 sq ft · Building area: 1,902 sq ft - Zoning: R5B - Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), data as of 2026-11-02 ## Tax assessment - Tax year 2027 (final roll): market value $1,586,000, assessed value $95,160, tax class 1 - Source: DOF Property Valuation and Assessment Data (https://data.cityofnewyork.us/d/8y4t-faws) ## Sales & deeds (ACRIS) Deeds recorded with the City Register. amount 0 usually means a non-market transfer. lots_in_deed > 1 means the price covers several lots. | Date | Status | Description | Source | |---|---|---|---| | 2018-09-15 | recorded (DEED) | DEED dated 2018-09-15 from MARSHALL, ANDREW to MARS DEVELOPMENT GROUP, LLC, no price stated ($0). | bnx9-e6tj | | 2002-09-27 | recorded (DEED) | DEED dated 2002-09-27 from THE HETRICK-MARTIN INSTITUTE to MARSHALL, ANDREW, no price stated ($0). | bnx9-e6tj | | 2001-06-16 | recorded (DEED) | DEED dated 2001-06-16 from INTEROFFICE INC to HETRICK-MARTIN INSTITUTE, no price stated ($0). | bnx9-e6tj | | 2000-03-30 | recorded (DEED) | DEED dated 2000-03-30 from EDMUNDS, KENJI; DANY, GLORIA/DEC'D to INTEROFFICE INC, no price stated ($0). | bnx9-e6tj | | 1989-05-23 | recorded (DEED) | DEED dated 1989-05-23 from CITY OF NEW YORK to DANCY, GLORIA, no price stated ($0). | bnx9-e6tj | | 1983-04-21 | recorded (DEED) | DEED dated 1983-04-21 from COMMISSIONER OF FINANCE to NEW YORK CITY, no price stated ($0) for a deed covering 35 lots. | bnx9-e6tj | | 1975-10-17 | recorded (DEED) | DEED dated 1975-10-17 from RONGER TANYA to GRAY MILDRED, no price stated ($0). | bnx9-e6tj | ## Open DOB jobs and recent work permits A DOB "job" is an application to do construction work. status "open" = a permit was issued but DOB has no record of final sign-off. Work permits are listed with type "work_permit" and their DOB permit status (they are not counted as open items). No records found. ## Open violations (DOB, ECB, HPD) status "open" = DOB violation category is ACTIVE, ECB violation status is ACTIVE, or HPD violation status is Open. | Date | Status | Description | Source | |---|---|---|---| | 2026-05-01 | open (Nov Sent Out) | HPD class A violation (Class A): (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 — not recorded as corrected. | wvxf-dwi5 | | 2025-11-18 | open (Info Nov Sent Out) | HPD class I violation (Class I): §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 PREMIS…. Open — not recorded as corrected. | wvxf-dwi5 | | 2025-06-06 | open (Nov Sent Out) | HPD class A violation (Class A): (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 — not recorded as corrected. | wvxf-dwi5 | | 2024-04-08 | open (Nov Sent Out) | HPD class A violation (Class A): (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 — not recorded as corrected. | wvxf-dwi5 | | 2023-03-21 | open (Nov Sent Out) | HPD class A violation (Class A): (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 — not recorded as corrected. | wvxf-dwi5 | | 2022-02-23 | open (Nov Sent Out) | HPD class A violation (Class A): (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 — not recorded as corrected. | wvxf-dwi5 | ## OATH tickets with unpaid balance or pending status "open" = balance due > $0 after a decision (cases awaiting a hearing are "pending"). default=true means the respondent did not appear. No records found. ## Complaints (HPD since 2019, 311 last 12 months) Complaints are reports, not violations. status mirrors the published complaint / request status. | Date | Status | Description | Source | |---|---|---|---| | 2024-04-17 | closed (CLOSE) | HPD complaint (apt 3): Unsanitary 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. | ygpa-z7cr | | 2024-01-07 | closed (CLOSE) | HPD complaint (apt 3F): Heat/Hot Water – Apartment Only. The 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 conditio… | ygpa-z7cr | ## Owners & contacts Owner of record comes from city tax records (PLUTO) and can lag behind recent sales. | Date | Status | Description | Source | |---|---|---|---| | 2026-08-24 | current | City tax records (PLUTO) list the owner as MARS DEVELOPMENT GROUP, LLC. | 64uk-42ks | | 2018-09-15 | recorded | Grantee (buyer) on the most recent deed (DEED, 2018-09-15). | 636b-3b5g | | 2022-09-16 | expired_registration | HPD registration contact: IndividualOwner Ewart Marshall, business city Brooklyn. | feu5-w2e2 | | 2022-09-16 | expired_registration | HPD registration contact: SiteManager Ewart Marshall. | feu5-w2e2 | --- Independent site. Data from NYC Open Data; not affiliated with the City of New York. Not a title search or official record; verify with the issuing agency. JSON: https://nycpropertyfacts.com/api/v1/property/3020450031