# 521a 6th Avenue, Park Slope, Brooklyn, NY 11215 BBL 3010360010 · Block 1036 · Lot 10 · BIN 3023505 Canonical page: https://nycpropertyfacts.com/ny/brooklyn/521a-6th-avenue-3010360010 Last updated: 2026-10-31 · Open-item counts as of 2026-11-10 ## Summary 521a 6th Avenue (Brooklyn, NY 11215; tax lot BBL 3010360010) is a two-family home (building class B3: two-family home converted from one-family), built around 1899, on a 1,293 sq ft lot zoned R6B. City tax records list the owner as POST, ANDREW; per ACRIS, a deed to this owner dated January 10, 2022 lists a price of $3,200,000. The Department of Finance's final market value for tax year 2027 is $2,478,000. As of November 10, 2026 (limited by DOB Job Application Filings (BIS); other open-item sources were confirmed later), 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.) How to cite: NYC Property Facts, “521a 6th Avenue, Brooklyn, NY 11215 (BBL 3010360010)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/521a-6th-avenue-3010360010. Source: NYC Open Data. ## Neighborhood Park Slope: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope - Open HPD violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope/open-hpd-violations - Active DOB violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope/active-dob-violations - Active ECB violations: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope/active-ecb-violations - Open DOB jobs: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope/open-dob-jobs - Unpaid OATH tickets: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope/unpaid-oath-tickets - Active vacate orders: https://nycpropertyfacts.com/ny/brooklyn/neighborhoods/park-slope/active-vacate-orders ## ZIP Brooklyn 11215: https://nycpropertyfacts.com/ny/brooklyn/11215 ## Nearby properties Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers. - 521 6th Avenue (16 ft): https://nycpropertyfacts.com/ny/brooklyn/521-6th-avenue-3010360011 - 523 6th Avenue (17 ft): https://nycpropertyfacts.com/ny/brooklyn/523-6th-avenue-3010360009 - 525 6th Avenue (32 ft): https://nycpropertyfacts.com/ny/brooklyn/525-6th-avenue-3010360008 - 519 6th Avenue (34 ft): https://nycpropertyfacts.com/ny/brooklyn/519-6th-avenue-3010360012 - 525a 6th Avenue (49 ft): https://nycpropertyfacts.com/ny/brooklyn/525a-6th-avenue-3010360007 - 527 6th Avenue (65 ft): https://nycpropertyfacts.com/ny/brooklyn/527-6th-avenue-3010360006 - 340 13th Street (53 ft): https://nycpropertyfacts.com/ny/brooklyn/340-13th-street-3010360014 - 342 13th Street (71 ft): https://nycpropertyfacts.com/ny/brooklyn/342-13th-street-3010360015 ## Open items | Item | Count | |---|---| | Open DOB jobs (permit issued, not signed off) | 0 | | Active DOB violations (BIS) | 0 | | Active DOB safety violations (DOB NOW) | 0 | | Active ECB violations | 0 | | Open HPD violations | 0 | | OATH tickets with unpaid balance | 0 | | Active vacate orders | 0 | ## Lot & building - Owner of record: POST, ANDREW - Building class: B3 – Two-family home converted from one-family - Year built: 1899 - Floors: 2 - Units: 2 residential / 2 total - Lot area: 1,293 sq ft · Building area: 1,920 sq ft - Zoning: R6B - Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), city dataset updated 2026-08-24; last loaded 2026-11-12 ## Tax assessment - Tax year 2027 (final roll): market value $2,478,000, assessed value $148,680, 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 | |---|---|---|---| | 2022-01-10 | recorded (DEED) | DEED dated 2022-01-10 from PROCAS, SIMONE; FERGUSON III, EDWARD T. to POST, ANDREW; POST, AMY, stated price $3,200,000. | bnx9-e6tj | | 2005-07-19 | recorded (DEED) | DEED dated 2005-07-19 from WALKER, BRIAN; WALKER, MARLA to PROCAS, SIMONE; FERGUSON, EDWARD T III, stated price $1,400,000. | bnx9-e6tj | | 2000-10-30 | recorded (DEED) | DEED dated 2000-10-30 from FORTINI, JAMES J to WALKER, BRIAN; WALKER, MARLA, no price stated ($0). | bnx9-e6tj | | 1998-03-20 | recorded (DEED) | DEED dated 1998-03-20 from KELLEY, JANET T; KELLEY, PETER J to FORTINI, JAMES J, no price stated ($0). | bnx9-e6tj | | 1983-05-11 | recorded (DEED) | DEED dated 1983-05-11 from JASINSKI, FRANK EXECOF to KELLEY, JANET T; KELLEY, PETER J, 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). | Date | Status | Description | Source | |---|---|---|---| | 2009-06-18 | n/a (ISSUED (initial)) | BIS work permit for job 302032217: Equipment work / Mechanical/HVAC. Issued 2009-06-18, expires 2010-05-01. | ipu4-2q9a | | 2005-12-05 | n/a (ISSUED (initial)) | BIS work permit for job 302032217: Plumbing / Plumbing. Issued 2005-12-05, expires 2006-12-05. | ipu4-2q9a | | 2005-11-16 | n/a (ISSUED (initial)) | BIS work permit for job 302032217: Equipment work / Other / general construction. Issued 2005-11-16, expires 2006-04-20. | ipu4-2q9a | | 2001-02-27 | n/a (ISSUED (initial)) | BIS work permit for job 301109583: Alteration. Issued 2001-02-27, expires 2002-02-27. | ipu4-2q9a | ## Open violations (DOB, DOB NOW safety, ECB, HPD) status "open" = DOB violation category is ACTIVE, DOB NOW safety violation status is Active, ECB violation status is ACTIVE, or HPD violation status is Open. Dismissed, cured, waived and disputed-successfully safety violations are not open. No records found. ## DOB safety violations (DOB NOW) Active means the published violation status is Active. Dismissed, cured, waived, disputed successfully and pending dismissal are not open items. No records found. Source: DOB Safety Violations (DOB NOW) (https://data.cityofnewyork.us/Building/DOB-Safety-Violations/855j-jady), city dataset updated 2026-11-11; last loaded 2026-11-11 ## 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. No records found. ## 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 POST, ANDREW. | 64uk-42ks | | 2022-01-10 | recorded | Grantee (buyer) on the most recent deed (DEED, 2022-01-10). | 636b-3b5g | | 2022-01-10 | recorded | Grantee (buyer) on the most recent deed (DEED, 2022-01-10). | 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/3010360010