1,060 recorded events, 1969–2026, from 16 city data systems. The city's paper trail here is mostly 383 311 service requests, 162 DOB permits, 133 DOB job filings.
Full record, year by year Support this site
The city's published records show little recorded distress here in the last three years. Less recorded distress than 59% of 100+-unit residential buildings citywide. The citywide median for 100+-unit residential buildings is 3.7 penalty points per 10 units; this building carries 2.3. In ZIP 11215, 70% of residential buildings hold an A and 4% grade D or F. How grades work
Among 4,677 100+-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 2 total — 0 class C (immediately hazardous), 2 class B, 0 class A. Oldest open since 2026-10-10. |
status snapshot refreshed weekly from HPD records
10 heat or hot-water complaints in the last three years (winter 2025–26: 8).
No bedbug-infested units reported in the last three years of filings.
$10,000 in enforcement penalties imposed (ECB/OATH) in the last three years.
129 service requests in the last three years. Most common: Noise (32) · Mobile Food Vendor (19) · Illegal Parking (14) · Vendor Enforcement (13) · HEAT/HOT WATER (5) · Blocked Driveway (4).
$3,795,779 in permitted construction work filed since 2016 (120 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.
| No | Built before 1974 (2022) |
| Yes | Six or more residential units (360) |
| Yes | 421-a / J-51 tax benefit on the current tax roll |
2 of 3 signals present. Buildings receiving 421-a or J-51 benefits are generally required to register their units as rent-stabilized for the duration of the benefit. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).
| Registered owner(s) | 420 Carroll LLC |
| Head officer | MATTHEW SCHWARTZ |
| Managing agent | AD DIVERSIFIED MANAGEMENT LLC |
| Last registered | 2025-09-23 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $14,642,000 | $6,588,900 |
| 2026 | $28,901,000 | $13,005,450 |
| 2027 | $77,448,000 | $34,851,600 |
The city's market estimate has risen 429% between tax years 2025 and 2027.
Tax exemptions on the roll: 421A 35YR WITH AFF HOUSING PCT
| Elevators | 6 active device(s) on record |
In the FEMA 1%-annual-chance floodplain (2015 preliminary flood maps) — lenders typically require flood insurance here.
Hurricane evacuation zone 1 of 6 — zone 1 evacuates first.
In the city's stormwater flood map only under the extreme-storm scenario (3.66 in/hr cloudburst with 2080 sea levels) — an Ida-scale event.
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 | Union St — R · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none Carroll St — F G · 0.4 mi straight-line (about a 10-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: 3 Av / Carroll St — B37 · 700 ft |
| Citi Bike | 3 Ave & Carroll St · 600 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 032 Samuel Mills Sprole. 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.
420 Carroll Street
| 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 |
| Anything else | Anything else |
129 311 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.
Managed by AD DIVERSIFIED MANAGEMENT LLC — 7 buildings, 1,704 units. Grades across the portfolio: A5 · C2. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 2-33 50 Avenue | QN | 499 | A |
| 420 Carroll Street | BK | 360 | A |
| 60 North Burgher Avenue | SI | 240 | C |
| 1133 Manhattan Avenue | BK | 210 | A |
| 121 East 144 Street | BX | 206 | A |
| 460N Brielle Avenue | SI | 104 | C |
| 445 Gerard Avenue | BX | 85 | A |
Most recent mortgage recorded against this lot: $6,000,000 on 2025-07-24 (lender: Equitable Financial Life Insurance Company Of Amer). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2025-07-24 | Mortgage $23,000,000 — from 420 CARROLL LLC to EQUITABLE FINANCIAL LIFE INSURANCE COMPA | $23,000,000 | |
| 2025-07-24 | Agreement $199,000,000 — from 420 CARROLL LLC to EQUITABLE FINANCIAL LIFE INSURANCE COMPA | $199,000,000 | |
| 2025-07-24 | Mortgage $6,000,000 — from 420 CARROLL LLC to EQUITABLE FINANCIAL LIFE INSURANCE COMPA | $6,000,000 | |
| 2022-07-12 | AL&R $158,000,000 — from 420 CARROLL LLC to BANK OZK | $158,000,000 | |
| 2022-07-12 | Mortgage $18,000,000 — from 420 CARROLL LLC to BANK OZK | $18,000,000 | |
| 2022-07-12 | AL&R $18,000,000 — from 420 CARROLL LLC to BANK OZK | $18,000,000 | |
| 2022-07-12 | Mortgage $158,000,000 — from 420 CARROLL LLC to BANK OZK | $158,000,000 | |
| 2020-02-06 | Mortgage $4,730,136 — from 420 CARROLL LLC to CIT BANK, N.A. | $4,730,136 | |
| 2020-02-06 | Mortgage $1,519,864 — from 420 CARROLL LLC to CIT BANK, N.A. | $1,519,864 | |
| 2020-02-06 | Agreement $25,000,000 — from 420 CARROLL LLC to CIT BANK, N.A. | $25,000,000 | |
| 2018-03-02 | AL&R $25,000,000 — from 420 CARROLL LLC to CIT BANK, N.A. | $25,000,000 | |
| 2018-02-15 | Deed $47,500,000 — from CARROLL STREET HOLDINGS, LLC to 420 CARROLL LLC | $47,500,000 | |
| 2018-02-15 | Mortgage $3,738,624 — from 420 CARROLL LLC to CIT BANK, N.A. | $3,738,624 | |
| 2018-02-15 | Agreement $25,000,000 — from 420 CARROLL LLC to CIT BANK, N.A. | $25,000,000 | |
| 2018-02-07 | Sold for $47,500,000 | $47,500,000 | $131,944 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 1 | 6 | 7 | 0 | 14 |
| 2018 | 0 | 0 | 3 | 9 | 0 | 12 |
| 2019 | 0 | 0 | 8 | 0 | 14 | 22 |
| 2020 | 22 | 7 | 19 | 3 | 3 | 54 |
| 2021 | 2 | 1 | 4 | 0 | 0 | 7 |
| 2022 | 44 | 7 | 20 | 14 | 3 | 88 |
| 2023 | 63 | 18 | 63 | 0 | 7 | 151 |
| 2024 | 43 | 14 | 10 | 5 | 4 | 76 |
| 2025 | 44 | 5 | 63 | 9 | 0 | 121 |
| 2026 | 73 | 2 | 73 | 0 | 3 | 151 |
Every one of the 1,060 recorded events, 1969–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11215 · Landlord rankings · How grades work · The map · The Mice Map