830 recorded events, 1970–2026, from 18 city data systems. The city's paper trail here is mostly 458 311 service requests, 114 HPD complaints, 60 rodent inspections.
Full record, year by year Support this site
A sustained record of distress well beyond its peers. More recorded distress than 98% of 1-5-unit residential buildings citywide. The citywide median for 1-5-unit residential buildings is 0 penalty points per 10 units; this building carries 119.7. In ZIP 11237, 39% of residential buildings hold an A and 15% grade D or F. How grades work
Among 699,345 1-5-unit residential buildings citywide · left is less recorded distress, right is more
No current HPD flags in the latest weekly snapshot: no open violations, no pending litigation, no active vacate orders, and not in the Alternative Enforcement Program.
11 heat or hot-water complaints in the last three years (winter 2023–24: 9 · winter 2025–26: 2). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
$655 in enforcement penalties imposed (ECB/OATH) in the last three years.
106 service requests in the last three years. Most common: Noise (80) · Illegal Parking (6) · HEAT/HOT WATER (5) · Dirty Condition (4) · Graffiti (2) · Encampment (2).
$424,320 in permitted construction work filed since 2016 (5 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.
| Yes | Built before 1974 (1931) |
| No | Six or more residential units (4) |
| No | 421-a / J-51 tax benefit on the current tax roll |
1 of 3 signals present. Only a partial profile — stabilization is possible but less likely. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).
| Registered owner(s) | 170 KNICKERBOCKER LLC |
| Head officer | mordechai katz |
| Managing agent | mordechai katz |
| Last registered | 2025-08-20 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $1,279,000 | $575,550 |
| 2026 | $1,363,000 | $613,350 |
| 2027 | $1,386,000 | $623,700 |
The city's market estimate has risen 8% between tax years 2025 and 2027.
| Restaurant | Cuisine | Grade | Notes |
|---|---|---|---|
| La Perla Del Ulua | Latin American | A | — |
Report to 311: Food poisoning · Food safety complaint
1 restaurant · 0 with mice evidence · See them on the Mice Map
1 Food Establishment complaint to 311 at this address in the last three years (most often: Rodents/Insects/Garbage) · complaints filed by the public; DOHMH investigates, outcomes aren't published.
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Hurricane evacuation zone 6 of 6 — zone 1 evacuates first.
Not in the city's stormwater (cloudburst) flood maps under any modeled scenario.
2 street-flooding or sewer-backup complaints at this address since 2010 (0 in the last three years).
Sources: FEMA flood maps (coastal), NYC DEP Stormwater Flood Maps (cloudburst), NYC hurricane evacuation zones, and 311 records for this address.
| Subway | Morgan Av — L · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Flushing Av / Knickerbocker Av — B57 · 400 ft |
| Citi Bike | Knickerbocker Ave & George St · 300 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 145 Andrew Jackson Middle: 347, 349. Confirm with the DOE's school search. |
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.
172 Knickerbocker Avenue
| Heat or hot water | Heat or hot water |
| Apartment maintenance | Apartment maintenance |
| Bed bugs | Bed bugs |
| Residential pests | Residential pests |
| Rats or mice | Rats or mice |
| Food poisoning | Food poisoning |
| Food safety complaint | Food safety complaint |
| Anything else | Anything else |
106 311 service requests from this address in the last three years — 5 of them about heat or hot water.
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: $2,000,000 on 2018-01-05 (lender: Ridgewood Savings 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 |
|---|---|---|---|
| 2018-01-05 | Mortgage $2,000,000 — from 170 KNICKERBOCKER LLC to RIDGEWOOD SAVINGS BANK | $2,000,000 | |
| 2018-01-05 | AL&R $2,000,000 — from 170 KNICKERBOCKER LLC to RIDGEWOOD SAVINGS BANK | $2,000,000 | |
| 2013-03-25 | AL&R $8,250,000 — from 170 KNICKERBOCKER, LLC; CARLILIS REALTY INC.; 1058 BERGEN STREET, LLC to AMALGAMATED BANK | $8,250,000 | |
| 2013-03-25 | Mortgage $2,199,591 — from 170 KNICKERBOCKER, LLC; CARLILIS REALTY INC.; 1058 BERGEN STREET, LLC to AMALGAMATED BANK | $2,199,591 | |
| 2013-03-25 | Agreement $8,250,000 — from CARLILIS REALTY INC.; 1058 BERGEN STREET, LLC; 170 KNICKERBOCKER, LLC to AMALGAMATED BANK | $8,250,000 | |
| 2011-01-26 | Mortgage $377,573 — from 170 KNICKERBOCKER LLC to NORTHFIELD BANK | $377,573 | |
| 2011-01-26 | Agreement $775,000 — from 170 KNICKERBOCKER LLC to NORTHFIELD BANK | $775,000 | |
| 2011-01-26 | Deed $1,070,000 — from YONG FENG MANAGEMENT LLC to 170 KNICKERBOCKER LLC | $1,070,000 | |
| 2011-01-25 | AL&R $775,000 — from 170 KNICKERBOCKER LLC to NORTHFIELD BANK | $775,000 | |
| 2007-09-25 | AL&R $420,000 — from YONG FENG MANAGEMENT, LLC to CATHAY BANK | $420,000 | |
| 2007-09-25 | Deed $115,000 — from LEN JIM, INC. to AQUA PROPERTIES, INC. | $115,000 | |
| 2007-09-25 | Deed $562,713 — from CLARKE, AS REFEREE TO SELL, DONALD L. to YONG FENG MANAGEMENT, LLC | $562,713 | |
| 2007-09-25 | Mortgage $420,000 — from YONG FENG MANAGEMENT, LLC to CATHAY BANK | $420,000 | |
| 2003-05-27 | DEEDO $25,000 — from ALPHA AND OMEGA INC. to J.P. APARTMENTS INC., | $25,000 | |
| 2001-09-28 | Mortgage $268,800 — from ALPHA & OMEGA INC to RYAN'S EXPRESS EQUITIES CORP | $268,800 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 2 | 19 | 3 | 4 | 28 |
| 2018 | 8 | 2 | 76 | 2 | 4 | 92 |
| 2019 | 1 | 3 | 41 | 2 | 3 | 50 |
| 2020 | 0 | 1 | 33 | 1 | 2 | 37 |
| 2021 | 0 | 0 | 22 | 1 | 6 | 29 |
| 2022 | 1 | 0 | 28 | 0 | 19 | 48 |
| 2023 | 0 | 3 | 33 | 1 | 10 | 47 |
| 2024 | 1 | 1 | 39 | 1 | 5 | 47 |
| 2025 | 2 | 2 | 23 | 0 | 5 | 32 |
| 2026 | 0 | 0 | 49 | 0 | 4 | 53 |
Every one of the 830 recorded events, 1970–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11237 · Landlord rankings · How grades work · The map · The Mice Map