# 9511 Avenue B, Brooklyn, NY 11236 BBL 3047550009 · Block 4755 · Lot 9 · BIN 3105080 Canonical page: https://nycpropertyfacts.com/ny/brooklyn/9511-avenue-b-3047550009 Last updated: 2026-10-31 · Open-item counts as of 2026-11-08 ## Summary 9511 Avenue B (Brooklyn, NY 11236; tax lot BBL 3047550009) is a two-family home (building class B3: two-family home converted from one-family), built around 1945, on a 2,267 sq ft lot zoned R5. City tax records list the owner as NELSON, ORSON; per ACRIS, a deed to this owner dated April 20, 2005 lists a price of $332,500. The Department of Finance's final market value for tax year 2027 is $631,000. As of November 8, 2026, NYC Open Data shows two open HPD violations. There was one 311 request 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, “9511 Avenue B, Brooklyn, NY 11236 (BBL 3047550009)”, data as of 2026-11-08, https://nycpropertyfacts.com/ny/brooklyn/9511-avenue-b-3047550009. Source: NYC Open Data. ## Neighborhood Canarsie: https://nycpropertyfacts.com/ny/brooklyn/11236 - Open HPD violations: https://nycpropertyfacts.com/ny/brooklyn/11236/open-hpd-violations - Active DOB violations: https://nycpropertyfacts.com/ny/brooklyn/11236/active-dob-violations - Active ECB violations: https://nycpropertyfacts.com/ny/brooklyn/11236/active-ecb-violations - Open DOB jobs: https://nycpropertyfacts.com/ny/brooklyn/11236/open-dob-jobs - Unpaid OATH tickets: https://nycpropertyfacts.com/ny/brooklyn/11236/unpaid-oath-tickets ## ZIP Brooklyn 11236: https://nycpropertyfacts.com/ny/brooklyn/11236 ## Nearby properties Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers. - 9515 Avenue B (22 ft): https://nycpropertyfacts.com/ny/brooklyn/9515-avenue-b-3047550008 - 9509 Avenue B (24 ft): https://nycpropertyfacts.com/ny/brooklyn/9509-avenue-b-3047550010 - 9517 Avenue B (45 ft): https://nycpropertyfacts.com/ny/brooklyn/9517-avenue-b-3047550006 - 9505 Avenue B (52 ft): https://nycpropertyfacts.com/ny/brooklyn/9505-avenue-b-3047550011 - 9521 Avenue B (70 ft): https://nycpropertyfacts.com/ny/brooklyn/9521-avenue-b-3047550005 - 9503 Avenue B (85 ft): https://nycpropertyfacts.com/ny/brooklyn/9503-avenue-b-3047550013 - 667 East 95th Street (71 ft): https://nycpropertyfacts.com/ny/brooklyn/667-east-95th-street-3047550014 - 663 East 95th Street (93 ft): https://nycpropertyfacts.com/ny/brooklyn/663-east-95th-street-3047550015 ## Open items | Item | Count | |---|---| | Open DOB jobs (permit issued, not signed off) | 0 | | Active DOB violations | 0 | | Active ECB violations | 0 | | Open HPD violations | 2 | | OATH tickets with unpaid balance | 0 | ## Lot & building - Owner of record: NELSON, ORSON - Building class: B3 – Two-family home converted from one-family - Year built: 1945 - Floors: 1 - Units: 2 residential / 2 total - Lot area: 2,267 sq ft · Building area: 1,771 sq ft - Zoning: R5 - Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), city dataset updated 2026-08-24; last loaded 2026-11-08 ## Tax assessment - Tax year 2027 (final roll): market value $631,000, assessed value $37,860, 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 | |---|---|---|---| | 2006-10-02 | recorded (DEED) | DEED dated 2006-10-02 from NELSON, ORSON to NELSON, CHORAL H; NELSON, ORSON, no price stated ($0). | bnx9-e6tj | | 2005-04-20 | recorded (DEED) | DEED dated 2005-04-20 from SIDDONS , RICARDO to NELSON, ORSON, stated price $332,500. | bnx9-e6tj | | 1986-12-17 | recorded (DEED) | DEED dated 1986-12-17 from DOUGLAS, PHILMORE A; DOUGLAS, MILAGROS to SIDDONS, RICARDO, no price stated ($0). | bnx9-e6tj | | 1983-08-01 | recorded (DEED) | DEED dated 1983-08-01 from BRENT-HARRIS, WINNIFRED to DOUGLAS, MILAGROS; DOUGLAS, PHILMORE A, no price stated ($0). | bnx9-e6tj | | 1973-12-18 | recorded (DEED) | DEED dated 1973-12-18 from DUBROW EDWIN; DUBROW RUTH to BRENT HARRIS WINNIFRED, 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 | |---|---|---|---| | 2025-08-22 | open (Nov Sent Out) | HPD class B violation (Class B) in apt 1: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT BSMT-APT 1, 1st BSMT-APT FROM SOUTH AT WEST. Open — not recorded as corrected. | wvxf-dwi5 | | 2025-08-22 | open (Nov Sent Out) | HPD class B violation (Class B) in apt 1: § 27-2073 ADM CODE - PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES AT GAS RANGE IN THE KITCHEN LOCATED AT BSMT-APT 1, 1st BSMT-APT FROM SOUTH AT WEST. 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 | |---|---|---|---| | 2025-08-14 | closed (CLOSE) | HPD complaint (apt 1): Unsanitary Condition – Pests; Appliance – Electric/Gas Range. HPD inspected this condition so the complaint has been closed. Violations were issued. The law provides the property owner time to correct the condition(s). Violation descriptions and the dates for t… | ygpa-z7cr | | 2025-08-05 | closed (CLOSE) | HPD complaint (apt 1): Unsanitary Condition – Pests; Electric – No Lighting. HPD attempted to conduct an inspection in response to this complaint, but was unable to complete the inspection. Please submit a new service request with 311 if the condition still exists. For more i… | ygpa-z7cr | | 2026-01-20 | closed (Closed) | 311 request to NYPD: Blocked Driveway – No Access. | erm2-nwe9 | ## 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 NELSON, ORSON. | 64uk-42ks | | 2006-10-02 | recorded | Grantee (buyer) on the most recent deed (DEED, 2006-10-02). | 636b-3b5g | | 2006-10-02 | recorded | Grantee (buyer) on the most recent deed (DEED, 2006-10-02). | 636b-3b5g | --- 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/3047550009