1,652 recorded events, 1967–2026, from 18 city data systems. The city's paper trail here is mostly 650 311 service requests, 416 HPD complaints, 374 HPD housing violations.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 78% of 25-99-unit residential buildings citywide. The citywide median for 25-99-unit residential buildings is 23.6 penalty points per 10 units; this building carries 97.4. In ZIP 11226, 60% of residential buildings hold an A and 10% grade D or F. How grades work
Among 17,252 25-99-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 34 total — 8 class C (immediately hazardous), 25 class B, 1 class A. Oldest open since 2020-08-12. |
status snapshot refreshed weekly from HPD records
44 heat or hot-water complaints in the last three years (winter 2023–24: 29 · winter 2024–25: 2 · winter 2025–26: 10 · winter 2026–27: 3). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
$1,250 in enforcement penalties imposed (ECB/OATH) in the last three years.
129 service requests in the last three years. Most common: HEAT/HOT WATER (21) · Noise (21) · UNSANITARY CONDITION (15) · WATER LEAK (10) · PLUMBING (9) · PAINT/PLASTER (6).
$349,937 in permitted construction work filed since 2016 (8 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 (1927) |
| Yes | Six or more residential units (71) |
| 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 owner(s) | 20-50 REALTY, LLC |
| Head officer | MEHMET KALKAN |
| Managing agent | DSJ MANAGEMENT |
| Last registered | 2025-08-14 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $5,996,000 | $2,698,200 |
| 2026 | $5,956,000 | $2,680,200 |
| 2027 | $5,465,000 | $2,459,250 |
The city's market estimate has fallen 9% between tax years 2025 and 2027.
| Energy grade (LL33) | C — ENERGY STAR score 62/100 (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Not in a hurricane evacuation zone.
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 | Church Av — B Q · 400 ft straight-line (about a 2-minute walk) · station accessibility: full |
| Bus | Nearest boarding stop: Caton Av / Saint Pauls Pl — B16 · 300 ft |
| Citi Bike | E 18 St & Church Ave · 400 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 249 The Caton. 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.
20 East 18 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 — 21 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 DSJ MANAGEMENT — 22 buildings, 1,600 units. Grades across the portfolio: A14 · B6 · C2. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 2525 Nostrand Avenue | BK | 114 | B |
| 657 East 26 Street | BK | 113 | A |
| 2680 East 19 Street | BK | 107 | A |
| 3101 Ocean Parkway | BK | 102 | B |
| 2300 Ocean Avenue | BK | 84 | C |
| 135 Prospect Park SW | BK | 84 | A |
| 3115 Brighton 6 Street | BK | 82 | A |
| 364 93 Street | BK | 81 | A |
| 145 95 Street | BK | 74 | A |
| 50 East 18 Street | BK | 73 | C |
| 255 79 Street | BK | 72 | A |
| 20 East 18 Street | BK | 71 | B |
| 7119 Shore Road | BK | 65 | A |
| 1543 West 1 Street | BK | 59 | B |
| 7825 4 Avenue | BK | 59 | A |
| 720 East 32 Street | BK | 57 | A |
| 740 East 32 Street | BK | 57 | A |
| 22 Martense Street | BK | 56 | A |
| 166 Seeley Street | BK | 55 | A |
| 7101 Shore Road | BK | 53 | A |
| 70 Linden Boulevard | BK | 41 | B |
| 75 Martense Street | BK | 41 | B |
Most recent mortgage recorded against this lot: $1,079,866 on 1999-03-18 (lender: Apple Bank For Savings), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2020-06-18 | Mortgage $16,189,000 — from 20-50 REALTY, LLC to GREYSTONE SERVICING COMPANY LLC | $16,189,000 | |
| 2014-04-10 | RPTT&RET $700,000 — from EP & LJ, LLC to ADELSBERG, STEVEN; WEINBERGER, THEODORE; FRAIMAN , CARL | $700,000 | |
| 1999-03-18 | Mortgage $1,079,866 — from 20-50 REALTY LLC to APPLE BANK FOR SAVINGS | $1,079,866 | |
| 1994-04-08 | Mortgage $438,820 — from 20-50 REALTY COMPANY to BAYSIDE FEDERAL SAVINGS BANK | $438,820 | |
| 1986-04-29 | Mortgage $1,625,000 — from 20-50 REALTY CO to GLOBE MTGE CO | $1,625,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 5 | 2 | 150 | 0 | 0 | 157 |
| 2018 | 0 | 2 | 42 | 0 | 3 | 47 |
| 2019 | 0 | 6 | 31 | 0 | 2 | 39 |
| 2020 | 0 | 3 | 64 | 2 | 1 | 70 |
| 2021 | 0 | 1 | 52 | 0 | 1 | 54 |
| 2022 | 0 | 4 | 128 | 0 | 1 | 133 |
| 2023 | 0 | 2 | 131 | 0 | 4 | 137 |
| 2024 | 4 | 2 | 118 | 0 | 3 | 127 |
| 2025 | 0 | 1 | 192 | 0 | 1 | 194 |
| 2026 | 3 | 5 | 45 | 0 | 2 | 55 |
Every one of the 1,652 recorded events, 1967–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11226 · Landlord rankings · How grades work · The map · The Mice Map