A modest record — below the level that usually signals systemic problems. More recorded distress than 68% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty
points per 10 units; this building carries 40.3. In ZIP 11101, 70% of residential buildings hold an A and
5% grade D or F.
How grades work
this building
A
B
C
Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more
Open with the city right now
Open HPD violations
1 total — 1 class C (immediately hazardous), 0 class B, 0 class A. Oldest open since 2026-08-19.
status snapshot refreshed weekly from HPD records
Patterns
No heat or hot-water complaints in the last three years.
No bedbug-infested units reported in the last three years of filings.
What 311 hears from this address
13 service requests in the last three years. Most common: Rodent (4) · UNSANITARY CONDITION (2) · New Tree Request (1) · Water System (1) · Illegal Parking (1) · Dirty Condition (1).
Filed construction activity
$412,000 in permitted construction work filed since
2016 (6 filings with a declared cost) — a rough measure of how actively
the owner maintains the building. Permit costs cover filed construction work only — they do not
capture routine maintenance or repairs done without a permit.
Rent-stabilization signals
Yes
Built before 1974 (1931)
Yes
Six or more residential units (6)
No
421-a / J-51 tax benefit on the current tax roll
2 of 3 signals present. This is the classic profile of a rent-stabilized building (pre-1974, 6+ units) — many units in such buildings remain stabilized. The definitive answer for any unit:
request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).
Registered with HPD — the names behind the building
Registered owner(s)
FIFTY ONE AVENUE LLC
Head officer
GREGORY Alsaad
Managing agent
BLOCK MANAGEMENT INC
Last registered
2026-06-25
as filed by the owner in the building's HPD registration
What the city thinks it's worth
Tax year
City market value
Assessed value
2025
$1,380,000
$621,000
2026
$1,547,000
$696,150
2027
$1,377,000
$619,650
The city's market estimate has risen
0% between tax years 2025 and 2027.
Building systems
Heating fuel
NO2FUEL
Flood exposure
In the FEMA 1%-annual-chance floodplain (2015 preliminary flood
maps) — lenders typically require flood insurance here.
Hurricane evacuation zone 2 of 6 — zone 1 evacuates first.
Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.
No street-flooding or sewer-backup complaints on record at this address.
Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps
(cloudburst), NYC hurricane evacuation zones, and 311 records for this address.
Getting around
Subway
Vernon Blvd-Jackson Av — 7 · 350 ft straight-line (about a 2-minute walk) · station accessibility: none
Bus
Nearest boarding stop: Borden Av / 5 St — Q101 Q103 · 400 ft
Citi Bike
Vernon Blvd & 50 Ave · 350 ft · station location as of 2026-09-23; live availability
Distances are straight-line, not walking routes. Transit locations from the MTA and
Citi Bike, bike facilities from NYC DOT, school zones from the DOE's 2024–25 maps.
13 311 service requests from this address in the last three years.
311 will ask for the address, the apartment if the problem is inside, and what's wrong.
Contact details are optional for most complaints; food-poisoning reports can be anonymous. Complaints
appear in the city's public 311 data, usually within a day or two, and then in the Live from 311 box
on this page.
Most recent mortgage recorded against this lot: $103,000 on
2021-03-10 (lender: Popular Bank). Face amount at recording — it may have since been paid
down, refinanced or satisfied. View the recorded
document.
Date
Record
Amount
Per res. unit
2026-03-12
Deed $3,600,000 — from 542 51AVE PROPERTY LLC to FIFTY ONE AVENUE LLC
$3,600,000
2026-03-05
Sold for $3,600,000
$3,600,000
$600,000
2021-03-10
AL&R $103,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK
$103,000
2021-03-10
Mortgage $103,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK
$103,000
2021-03-10
AL&R $897,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK
$897,000
2021-03-10
Mortgage $897,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK
$897,000
2021-03-10
AL&R $1,500,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK
$1,500,000
2021-03-10
Mortgage $1,500,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK
HPD class C: 567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND A
2026-08-18
311: Residential Disposal Complaint — Bin Not Used
HPD 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 HPD
2026-03-12
TL&R — from POPULAR BANK to 542 51AVE PROPERTY LLC
2026-03-12
Deed $3,600,000 — from 542 51AVE PROPERTY LLC to FIFTY ONE AVENUE LLC
2026-03-12
Mortgage assigned — from POPULAR BANK to GREENSBORO FUNDING LLC
2026-03-12
Mortgage assigned — from POPULAR BANK to GREENSBORO FUNDING LLC
2026-03-12
Mortgage assigned — from POPULAR BANK to GREENSBORO FUNDING LLC
2026-03-12
TL&R — from POPULAR BANK to 542 51AVE PROPERTY LLC
2026-03-12
TL&R — from POPULAR BANK to 542 51AVE PROPERTY LLC
2026-03-05
Sold for $3,600,000
The full timeline
2026
2026-08-19HPD class C: 567 (C) § 27-2017, 27-2017.1, 27-2017.4, 27-2017.5, 27-2017.8, 27-2019, 27-2021 HMC: ABATE THE NUISANCE CONSISTING OF EVIDENCE OF RATS AND A
2026-08-18311: Residential Disposal Complaint — Bin Not Used
2026-06-02Rodent inspection: Failed for Rat Activity
2026-06-01311: Rodent — Rat Sighting
2026-05-06HPD 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 HPD
2026-03-12TL&R — from POPULAR BANK to 542 51AVE PROPERTY LLC
2026-03-12Deed $3,600,000 — from 542 51AVE PROPERTY LLC to FIFTY ONE AVENUE LLC$3,600,000
2026-03-12Mortgage assigned — from POPULAR BANK to GREENSBORO FUNDING LLC
2026-03-12Mortgage assigned — from POPULAR BANK to GREENSBORO FUNDING LLC
2026-03-12Mortgage assigned — from POPULAR BANK to GREENSBORO FUNDING LLC
2026-03-12TL&R — from POPULAR BANK to 542 51AVE PROPERTY LLC
2026-03-12TL&R — from POPULAR BANK to 542 51AVE PROPERTY LLC
2026-03-05Sold for $3,600,000$3,600,000
2025
2025-04-07Rodent inspection: Passed
2025-03-14Rodent inspection: Failed for Rat Activity
2025-03-08311: Dirty Condition — Trash
2025-03-08311: Rodent — Rat Sighting
2025-01-22Bedbug filing: 0 infested units
2025-01-04311: Illegal Parking — Blocked Hydrant
2024
2024-12-27311: Water System — Dirty Water (WE)
2024-11-29HPD 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
2024-04-12HPD 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 HPD
2023
2023-11-23311: New Tree Request — For One Address
2023-11-22HPD 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
2023-03-28HPD 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 HPD
2023-01-09Rodent inspection: Passed
2022
2022-11-29Rodent inspection: Failed for Rat Activity
2022-11-15HPD 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
2022-11-13311: Rodent — Rat Sighting
2022-09-26Rodent inspection: Failed for Rat Activity
2022-08-23Rodent inspection: Failed for Rat Activity and Other Reason
2022-03-03HPD 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 HPD
2022-03-03HPD 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
2022-01-24311: Illegal Parking — Blocked Sidewalk
2021
2021-10-29311: Illegal Parking — Parking Permit Improper Use
2021-10-05311: Street Condition — Failed Street Repair
2021-09-06Job filed: RENOVATION OF EXISTING 6-FAMILY HOUSE WITH MECHANICAL WORK AS PER PLAN:INSTALL NEW AIR CONDITION ON EACH DWELLING AND CELLAR LEVEL AS PER PLAN; NO CHA$50,000
2021-09-06Job filed: INTERIOR RENOVATION OF EXISTING CELLAR, FIRST AND SECOND FLOOR WITH PLUMBING WORK: RELOCATE KITCHEN AND BATHROOM FIXTURES; NEW BOILER ANDHOT WATER HEA$81,000
2021-09-03Job filed: INTERIOR RENOVATION OF EXISTING CELLAR, FIRST, SECOND AND THIRD FLOOR WITH GENERAL CONSTRUCTION AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY UND$75,000
2021-08-12Permit Mechanical Systems — Signed-off
2021-08-03Permit General Construction — Signed-off
2021-05-07Permit Mechanical Systems — Signed-off
2021-05-04Job filed: RENOVATION OF EXISTING 6-FAMILY HOUSE WITH MECHANICAL WORK AS PER PLAN:INSTALL NEW AIR CONDITION ON EACH DWELLING AND CELLAR LEVEL AS PER PLAN; NO CHA$50,000
2021-04-23Permit General Construction — Signed-off
2021-04-20Permit General Construction — Signed-off
2021-04-14HPD 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
2021-04-14HPD 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 HPD
2021-04-02Job filed: INTERIOR RENOVATION OF EXISTING CELLAR, FIRST, SECOND AND THIRD FLOOR WITH GENERAL CONSTRUCTION AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY UND$75,000
2021-04-02Job filed: INTERIOR RENOVATION OF EXISTING CELLAR, FIRST AND SECOND FLOOR WITH PLUMBING WORK: RELOCATE KITCHEN AND BATHROOM FIXTURES; NEW BOILER ANDHOT WATER HEA$81,000
2021-03-10AL&R $103,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK$103,000
2021-03-10Mortgage $103,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK$103,000
2021-03-10AL&R $897,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK$897,000
2021-03-10Mortgage $897,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK$897,000
2021-03-10AL&R $1,500,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK$1,500,000
2021-03-10Mortgage $1,500,000 — from 542 51AVE PROPERTY LLC to POPULAR BANK$1,500,000
2020-12-26311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-10-07Boiler inspection
2020-10-05311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-06-30Deed — from CIAVARELLA, ROSE MARIE; CONTINO, CAROL to 542 51ST AVE LLC
2020-03-06Deed transfer (nominal price)
2020-01-22Bedbug filing: 0 infested units
2019
2019-11-07Boiler inspection
2018
2018-10-23HPD 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
2018-08-13311: New Tree Request — For One Address
2018-04-13311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2018-04-13311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2018-03-20311: Request Large Bulky Item Collection — Request Large Bulky Item Collection