210 recorded events, 1967–2026, from 14 city data systems. The city's paper trail here is mostly 44 311 service requests, 31 DOB permits, 28 DOB job filings.
Full record, year by year Support this site
No heat or hot-water complaints in the last three years.
No bedbug-infested units reported in the last three years of filings.
17 service requests in the last three years. Most common: Illegal Parking (11) · Blocked Driveway (3) · Homeless Person Assistance (2) · Street Sweeping Complaint (1).
$308,400 in permitted construction work filed since 2016 (12 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.
| Registered owner(s) | Prospect Brothers Property LLC |
| Head officer | Yang Z Lu |
| Managing agent | Kemol Dixon |
| Last registered | 2025-07-16 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $7,542,000 | $3,393,900 |
| 2026 | $7,930,000 | $3,568,500 |
| 2027 | $13,749,000 | $6,187,050 |
The city's market estimate has risen 82% between tax years 2025 and 2027.
| Restaurant | Cuisine | Grade | Notes |
|---|---|---|---|
| Comfort Inn - Prospect Park | American | Not yet graded | — |
Report to 311: Food poisoning · Food safety complaint
1 restaurant · 0 with mice evidence · See them on the Mice Map
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Hurricane evacuation zone 4 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.
| Subway | Prospect Av — R · 1,000 ft straight-line (about a 5-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: 3 Av / 20 St — B37 · 400 ft |
| Citi Bike | 21 St & 4 Ave · 400 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 295. 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.
150 20 Street
| Rats or mice | Rats or mice |
| Food poisoning | Food poisoning |
| Food safety complaint | Food safety complaint |
| Anything else | Anything else |
17 311 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: $3,900,000 on 2020-03-25 (lender: Cathay 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 |
|---|---|---|---|
| 2020-03-25 | AL&R $12,000,000 — from PROSPECT BROTHERS REALTY LLC to CATHAY BANK | $12,000,000 | |
| 2020-03-25 | Agreement $12,000,000 — from PROSPECT BROTHERS REALTY LLC to CATHAY BANK | $12,000,000 | |
| 2020-03-25 | Mortgage $3,900,000 — from PROSPECT BROTHERS REALTY LLC to CATHAY BANK | $3,900,000 | |
| 2017-12-28 | AL&R $8,100,000 — from PROSPECT BROTHERS REALTY LLC to CATHAY BANK | $8,100,000 | |
| 2017-12-28 | Mortgage $8,100,000 — from PROSPECT BROTHERS REALTY LLC to CATHAY BANK | $8,100,000 | |
| 2015-11-27 | Deed $4,750,000 — from KU , BEAN-JIANG; SONG, XIAO HONG to PROSPECT BROTHERS REALTY LLC | $4,750,000 | |
| 1992-09-11 | Mortgage $290,000 — from ZALMAN REISS& ASSOCINC to WEISS, ALBERT/EST OF | $290,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 11 | 10 | 2 | 2 | 0 | 25 |
| 2018 | 12 | 15 | 5 | 0 | 5 | 37 |
| 2019 | 14 | 4 | 4 | 0 | 1 | 23 |
| 2020 | 3 | 3 | 2 | 4 | 0 | 12 |
| 2021 | 0 | 3 | 4 | 0 | 0 | 7 |
| 2022 | 0 | 1 | 4 | 0 | 0 | 5 |
| 2023 | 0 | 4 | 3 | 0 | 0 | 7 |
| 2024 | 0 | 0 | 5 | 1 | 0 | 6 |
| 2025 | 3 | 0 | 6 | 0 | 0 | 9 |
| 2026 | 0 | 0 | 9 | 0 | 1 | 10 |
Every one of the 210 recorded events, 1967–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11232 · Landlord rankings · How grades work · The map · The Mice Map