# 817 Classon Avenue, Prospect Heights, Brooklyn, NY 11238

BBL 3011780007 · Block 1178 · Lot 7 · BIN 3029573  
Canonical page: https://nycpropertyfacts.com/ny/brooklyn/817-classon-avenue-3011780007  
Last updated: 2026-10-31 · Open-item counts as of 2026-11-10

## Summary

817 Classon Avenue (Brooklyn, NY 11238; tax lot BBL 3011780007) is a 19-unit elevator apartment building (building class D3: elevator apartments, fireproof, no stores), built around 2025, on a 4,991 sq ft lot. City tax records list the owner as 817 CLASSON OWNER LLC; per ACRIS, a deed to this owner dated April 2, 2024 lists a price of $6,000,000. The Department of Finance's final market value for tax year 2027 is $3,441,000. As of November 10, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and one OATH ticket with an unpaid balance. There was one 311 request in the past 12 months and no 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, “817 Classon Avenue, Brooklyn, NY 11238 (BBL 3011780007)”, data as of 2026-11-10, https://nycpropertyfacts.com/ny/brooklyn/817-classon-avenue-3011780007. Source: NYC Open Data.

## Neighborhood

Prospect Heights: https://nycpropertyfacts.com/ny/brooklyn/11238

- Open HPD violations: https://nycpropertyfacts.com/ny/brooklyn/11238/open-hpd-violations
- Active DOB violations: https://nycpropertyfacts.com/ny/brooklyn/11238/active-dob-violations
- Active ECB violations: https://nycpropertyfacts.com/ny/brooklyn/11238/active-ecb-violations
- Open DOB jobs: https://nycpropertyfacts.com/ny/brooklyn/11238/open-dob-jobs
- Unpaid OATH tickets: https://nycpropertyfacts.com/ny/brooklyn/11238/unpaid-oath-tickets

## ZIP

Brooklyn 11238: https://nycpropertyfacts.com/ny/brooklyn/11238

## Nearby properties

Ordered by map distance among lots on this street within 40 house numbers and on this tax block within 15 lot numbers.

- 817 Classon Avenue (1 ft): https://nycpropertyfacts.com/ny/brooklyn/817-classon-avenue-3011787504
- 815 Classon Avenue (38 ft): https://nycpropertyfacts.com/ny/brooklyn/815-classon-avenue-3011780009
- 823 Classon Avenue (59 ft): https://nycpropertyfacts.com/ny/brooklyn/823-classon-avenue-3011787502
- 811 Classon Avenue (66 ft): https://nycpropertyfacts.com/ny/brooklyn/811-classon-avenue-3011780010
- 809 Classon Avenue (90 ft): https://nycpropertyfacts.com/ny/brooklyn/809-classon-avenue-3011780011
- 820 Classon Avenue (166 ft): https://nycpropertyfacts.com/ny/brooklyn/820-classon-avenue-3011777502
- 540 St Johns Place (110 ft): https://nycpropertyfacts.com/ny/brooklyn/540-st-johns-place-3011780015
- 461 Lincoln Place (125 ft): https://nycpropertyfacts.com/ny/brooklyn/461-lincoln-place-3011780001

## Open items

| Item | Count |
|---|---|
| Open DOB jobs (permit issued, not signed off) | 1 |
| 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 | 1 |

## Lot & building

- Owner of record: 817 CLASSON OWNER LLC
- Building class: D3 – Elevator apartments, fireproof, no stores
- Year built: 2025
- Floors: 7
- Units: 19 residential / 19 total
- Lot area: 4,991 sq ft · Building area: 22,325 sq ft
- Zoning: —
- 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 $3,441,000, assessed value $1,548,450, tax class 2
- 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 |
|---|---|---|---|
| 2024-04-02 | recorded (DEED) | DEED dated 2024-04-02 from SOLID ROCK PENTECOSTAL CHURCH, INC.; SOLID ROCK PENTECOSTAL FELLOWSHIP CHURCH, INC. to 817 CLASSON OWNER LLC, stated price $6,000,000. | bnx9-e6tj |
| 1981-08-20 | recorded (DEED) | DEED dated 1981-08-20 from ROLNIK LILLIAN to SOLID ROCK PENTECOSTAL CHURCH INC, no price stated ($0). | bnx9-e6tj |
| 1981-06-29 | recorded (DEED) | DEED dated 1981-06-29 from GUTHMAN CHRISTINE (DEFEN); LANE MORGAN E (REFEREE) to ROLNIK LILLIAN, 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 |
|---|---|---|---|
| 2010-02-03 | open (PERMIT ISSUED - PARTIAL JOB) | BIS job 320124405 (A1 – Major alteration (changes use, egress or occupancy)): PERMIT ISSUED - PARTIAL JOB — permit issued, no sign-off on record. CONVERTING COMMERCIAL SPACE INTO A PLACE OF WORSHIP AND ADJACENT ACCESSORY SPACE (BIBLE STUDY,PASTOR/ELDERS MEETING ROOM,ACCESSORY OFFICE,STORAGE) | ic3t-wcy2 |
| 2025-11-19 | n/a (Signed-off) | DOB NOW work permit for job B00991253-S5: Plumbing — Plumbing work as per plans filed in conjunction with NB #B00991253-I1.. Issued 2025-11-19, expires 2026-04-03. | rbx6-tga4 |
| 2025-03-06 | n/a (Signed-off) | DOB NOW work permit for job B00991253-S7: Sprinklers — Sprinkler work as per plans filed in conjunction with NB #B00991253-I1. Issued 2025-03-06, expires 2026-03-06. | rbx6-tga4 |
| 2025-02-18 | n/a (Signed-off) | DOB NOW work permit for job B01055968-I1: Construction Fence — PROPOSED 8FT CONSTRUCTION FENCE. NO CHANGE TO USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.. Issued 2025-02-18, expires 2026-02-18. | rbx6-tga4 |
| 2025-02-07 | n/a (Signed-off) | DOB NOW work permit for job B01177070-I1: Protection and Mechanical Methods — Installation of temporary overhead protection per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupa…. Issued 2025-02-07, expires 2026-02-07. | rbx6-tga4 |
| 2025-02-07 | n/a (Signed-off) | DOB NOW work permit for job B01165733-I1: Supported Scaffold — Installation of temporary supported scaffold per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupan…. Issued 2025-02-07, expires 2026-02-07. | rbx6-tga4 |
| 2025-02-07 | n/a (Signed-off) | DOB NOW work permit for job B01177068-I1: Protection and Mechanical Methods — Installation of temporary roof protection per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy …. Issued 2025-02-07, expires 2026-02-07. | rbx6-tga4 |
| 2025-02-07 | n/a (Signed-off) | DOB NOW work permit for job B01177063-I1: Protection and Mechanical Methods — Installation of temporary needle beam per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy with…. Issued 2025-02-07, expires 2026-02-07. | rbx6-tga4 |
| 2025-01-14 | n/a (Signed-off) | DOB NOW work permit for job B01165728-I1: Construction Fence — Installation of temporary construction fence per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupan…. Issued 2025-01-14, expires 2026-01-14. | rbx6-tga4 |
| 2025-01-14 | n/a (Signed-off) | DOB NOW work permit for job B01165711-I1: Sidewalk Shed — Installation of temporary sidewalk shed per plan submitted. Work shall comply with 2022 building codes chapter 33. No change in use, egress and/or occupancy wi…. Issued 2025-01-14, expires 2026-01-14. | rbx6-tga4 |
| 2025-01-09 | n/a (Signed-off) | DOB NOW work permit for job B00991253-S4: Mechanical Systems — Mechanical work as per plans filed.. Issued 2025-01-09, expires 2026-01-09. | rbx6-tga4 |
| 2024-12-11 | n/a (Permit Issued) | DOB NOW work permit for job B00991253-I1: General Construction — PROPOSED NEW 7 STORIES WITH CELLAR RESIDENTIAL BUILDING. Issued 2024-12-11, expires 2025-12-11. | rbx6-tga4 |
| 2024-12-11 | n/a (Signed-off) | DOB NOW work permit for job B00991253-S1: Structural — Structural work for proposed new 7 story residential building as per plans filed.. Issued 2024-12-11, expires 2025-12-11. | rbx6-tga4 |
| 2024-11-21 | n/a (Signed-off) | DOB NOW work permit for job B00991253-S5: Plumbing — Plumbing work as per plans filed in conjunction with NB #B00991253-I1.. Issued 2024-11-21, expires 2025-11-21. | rbx6-tga4 |
| 2024-10-07 | n/a (Signed-off) | DOB NOW work permit for job B00991253-S2: Foundation — FOUNDATION WORK AS PER PLANS FILED.. Issued 2024-10-07, expires 2025-10-07. | rbx6-tga4 |
| 2024-09-26 | n/a (Signed-off) | DOB NOW work permit for job B00991253-S3: Support of Excavation — Support of Excavation as per plans filed.. Issued 2024-09-26, expires 2025-06-27. | rbx6-tga4 |
| 2024-06-10 | n/a (Signed-off) | DOB NOW work permit for job B01022913-I1: Full Demolition — Full demolition to a one story building. Issued 2024-06-10, expires 2024-12-28. | rbx6-tga4 |
| 2024-05-30 | n/a (Signed-off) | DOB NOW work permit for job B01055968-I1: Construction Fence — PROPOSED 8FT CONSTRUCTION FENCE. NO CHANGE TO USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.. Issued 2024-05-30, expires 2025-05-10. | rbx6-tga4 |
| 2016-11-22 | n/a (ISSUED (renewal)) | BIS work permit for job 320124405: Alteration. Issued 2016-11-22, expires 2017-04-10. | ipu4-2q9a |
| 2012-02-06 | n/a (ISSUED (renewal)) | BIS work permit for job 320124405: Alteration. Issued 2012-02-06, expires 2012-12-03. | ipu4-2q9a |

Showing 20 of 21. Full list: https://nycpropertyfacts.com/api/v1/property/3011780007/permits

## 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.

| Date | Status | Description | Source |
|---|---|---|---|
| 2024-07-26 | open (DEFAULTED · DEFAULTED) | OATH ticket from Dep - Bureau Of Env. Complianc: FAIL TO KEEP HAVE AVAILABLE FOR INSPECTION NOISE MITIGATION PLAN. Unpaid balance $1,820. Respondent defaulted (did not appear). | jz4z-kudi |
| 2025-10-30 | pending (RESCHEDULED · ADJOURNED) | OATH ticket from Dept. Of Buildings: FAIL TO SAFEGUARD PUBLIC AND PROPERTY. Hearing pending. | jz4z-kudi |
| 2025-08-04 | pending (RESCHEDULED · ADJOURNED) | OATH ticket from Dept. Of Buildings: PEDESTRAIN PROTECTION DOES NOT MEET CODE SPECIFICATIONS. Hearing pending. | jz4z-kudi |
| 2025-08-04 | pending (RESCHEDULED · ADJOURNED) | OATH ticket from Dept. Of Buildings: MISCELLANEOUS VIOLATIONS. Hearing pending. | jz4z-kudi |
| 2025-04-25 | pending (RESCHEDULED · ADJOURNED) | OATH ticket from Dept. Of Buildings: WORK DOES NOT CONFORM TO APPROVED CONST. DOCUMENTS AND OR APPROVED AME. Hearing pending. | jz4z-kudi |

## Complaints (HPD since 2019, 311 last 12 months)

Complaints are reports, not violations. status mirrors the published complaint / request status.

| Date | Status | Description | Source |
|---|---|---|---|
| 2025-12-14 | closed (Closed) | 311 request to DSNY: Snow or Ice – Sidewalk. | 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 817 CLASSON OWNER LLC. | 64uk-42ks |
| 2024-04-02 | recorded | Grantee (buyer) on the most recent deed (DEED, 2024-04-02). | 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/3011780007