# 409a Prospect Avenue, Park Slope, Brooklyn, NY 11215

BBL 3011120072 · Block 1112 · Lot 72 · BIN 3027138  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/409a-prospect-avenue-3011120072  
Last updated: 2026-10-31 · Open-item counts as of 2026-11-10

## Summary

409a Prospect Avenue (Brooklyn, NY 11215; tax lot BBL 3011120072) is a two-family home (building class B9: two-family home, miscellaneous), built around 1901, on a 1,600 sq ft lot zoned R5B. City tax records list the owner as WILLIAM GORDON SHAPIRO, AS TRUSTEE; the most recent deed with a stated price is dated July 14, 2009 at $1,049,000 (per ACRIS). The Department of Finance's final market value for tax year 2027 is $2,149,000. As of November 10, 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.)

How to cite: NYC Property Facts, “409a Prospect Avenue, Brooklyn, NY 11215 (BBL 3011120072)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/409a-prospect-avenue-3011120072. 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

## 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.

- 407 Prospect Avenue (16 ft): https://nycpropertyfacts.com/ny/brooklyn/407-prospect-avenue-3011120073
- 409 Prospect Avenue (16 ft): https://nycpropertyfacts.com/ny/brooklyn/409-prospect-avenue-3011120071
- 411a Prospect Avenue (31 ft): https://nycpropertyfacts.com/ny/brooklyn/411a-prospect-avenue-3011120070
- 405 Prospect Avenue (41 ft): https://nycpropertyfacts.com/ny/brooklyn/405-prospect-avenue-3011120074
- 411 Prospect Avenue (43 ft): https://nycpropertyfacts.com/ny/brooklyn/411-prospect-avenue-3011120069
- 413a Prospect Avenue (57 ft): https://nycpropertyfacts.com/ny/brooklyn/413a-prospect-avenue-3011120068
- Prospect Avenue (101 ft): https://nycpropertyfacts.com/ny/brooklyn/prospect-avenue-3011120064
- 1650 8th Avenue (158 ft): https://nycpropertyfacts.com/ny/brooklyn/1650-8th-avenue-3011120058

## 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 |

## Lot & building

- Owner of record: WILLIAM GORDON SHAPIRO, AS TRUSTEE
- Building class: B9 – Two-family home, miscellaneous
- Year built: 1901
- Floors: 2
- Units: 2 residential / 2 total
- Lot area: 1,600 sq ft · Building area: 1,968 sq ft
- Zoning: R5B
- Source: PLUTO (Dept. of City Planning) (https://data.cityofnewyork.us/d/64uk-42ks), city dataset updated 2026-08-24; last loaded 2026-11-10

## Tax assessment

- Tax year 2027 (final roll): market value $2,149,000, assessed value $128,940, 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 |
|---|---|---|---|
| 2025-02-18 | recorded (DEED) | DEED dated 2025-02-18 from SHAPIRO, BILL to BILL SHAPIRO TRUST U/A/D MAY 1, 2024; WILLIAM GORDON SHAPIRO, AS TRUSTEE, no price stated ($0). | bnx9-e6tj |
| 2009-07-14 | recorded (DEED) | DEED dated 2009-07-14 from RAGGHIANTI, BARBARA; SCHOENGOLD, ANDREW to SHAPIRO, BILL, stated price $1,049,000. | bnx9-e6tj |
| 2005-01-12 | recorded (DEED) | DEED dated 2005-01-12 from BROWN, ARTHUR V; BROWN, THELMA to RAGGHIANTI, BARBARA; SCHOENGOLD, ANDREW, stated price $640,000. | bnx9-e6tj |
| 1969-08-06 | recorded (DEED) | DEED dated 1969-08-06 from RITE PROPERTIES CORP to BROWN ARTHUR V; BROWN THELMA, no price stated ($0). | bnx9-e6tj |
| 1969-08-06 | recorded (DEED) | DEED dated 1969-08-06 from MALONEY JOHN C; MALONEY EILEEN P to RITE PROPERTIES CORP, no price stated ($0). | bnx9-e6tj |
| 1967-06-01 | recorded (DEED) | DEED dated 1967-06-01 from SORGE FANNY to MALONEY EILEEN P; MALONEY JOHN C, 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 |
|---|---|---|---|
| 2011-10-03 | n/a (ISSUED (initial)) | BIS work permit for job 320320764: Plumbing / Plumbing. Issued 2011-10-03, expires 2012-10-02. | ipu4-2q9a |
| 2011-09-09 | n/a (ISSUED (initial)) | BIS work permit for job 320320764: Equipment work / Other / general construction. Issued 2011-09-09, expires 2011-12-03. | ipu4-2q9a |
| 2005-03-18 | n/a (ISSUED (initial)) | BIS work permit for job 301893128: Plumbing / Plumbing. Issued 2005-03-18, expires 2006-03-18. | ipu4-2q9a |
| 2005-02-18 | n/a (ISSUED (initial)) | BIS work permit for job 301893128: Equipment work / Other / general construction. Issued 2005-02-18, expires 2005-08-26. | 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 2026-11-09; last loaded 2026-11-10

## 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 WILLIAM GORDON SHAPIRO, AS TRUSTEE. | 64uk-42ks |
| 2025-02-18 | recorded | Grantee (buyer) on the most recent deed (DEED, 2025-02-18). | 636b-3b5g |
| 2025-02-18 | recorded | Grantee (buyer) on the most recent deed (DEED, 2025-02-18). | 636b-3b5g |

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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/3011120072