427 recorded events, 1966–2026, from 15 city data systems. The city's paper trail here is mostly 130 HPD complaints, 129 HPD housing violations, 97 311 service requests.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 71% 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 71. 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 | 52 total — 4 class C (immediately hazardous), 42 class B, 6 class A. Oldest open since 1985-12-29. |
status snapshot refreshed weekly from HPD records
20 heat or hot-water complaints in the last three years (winter 2023–24: 4 · winter 2024–25: 14 · winter 2025–26: 2). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
29 service requests in the last three years. Most common: HEAT/HOT WATER (10) · UNSANITARY CONDITION (5) · PAINT/PLASTER (4) · WATER LEAK (4) · Illegal Parking (3) · Street Sweeping Complaint (1).
No permitted work with a declared cost filed in the last decade. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.
| Yes | Built before 1974 (1931) |
| Yes | Six or more residential units (25) |
| 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) | CORION REALTY CORP |
| Head officer | ALBERT CORION |
| Managing agent | WATERSTONE GROUP LLC |
| Last registered | 2025-10-15 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $1,314,000 | $591,300 |
| 2026 | $1,364,000 | $613,800 |
| 2027 | $1,371,000 | $616,950 |
The city's market estimate has risen 4% between tax years 2025 and 2027.
| Heating fuel | NO2FUEL |
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 — 2 5 · 0.3 mi straight-line (about an 8-minute walk) · station accessibility: full Church Av — B Q · 0.4 mi straight-line (about a 10-minute walk) · station accessibility: full |
| Bus | Nearest boarding stop: Church Av / Bedford Av — B35 · 300 ft |
| Citi Bike | Caton Ave & Bedford Ave · 500 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 181 Brooklyn Middle: Parkside Preparatory Academy. 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.
102 Martense 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 |
29 311 service requests from this address in the last three years — 10 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 WATERSTONE GROUP LLC — 66 buildings, 608 units. Grades across the portfolio: A15 · B11 · C18 · D11 · F11. See the whole portfolio
showing 60 of 66 buildings
Most recent mortgage recorded against this lot: $290,480 on 2013-09-05 (lender: The First National Bank Of Long Island). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2013-09-05 | Agreement $1,100,000 — from CORNION REALTY, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND | $1,100,000 | |
| 2013-09-05 | AL&R $1,100,000 — from CORNION REALTY, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND | $1,100,000 | |
| 2013-09-05 | Mortgage $290,481 — from CORNION REALTY, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND | $290,481 | |
| 2010-01-07 | AL&R $850,000 — from CORION REALTY, LLC to FLUSHING SAVINGS BANK, FSB | $850,000 | |
| 2010-01-07 | Agreement $850,000 — from FLUSHING SAVINGS BANK, FSB to CORION REALTY, LLC | $850,000 | |
| 2010-01-07 | Mortgage $391,368 — from CORION REALTY, LLC to FLUSHING SAVINGS BANK, FSB | $391,368 | |
| 2004-11-17 | Mortgage $600,000 — from CORION REALTY, LLC to ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA | $600,000 | |
| 1999-09-27 | Mortgage $173,829 — from CORION REALTY CORP to GREENPOINT MORTGAGECORP | $173,829 | |
| 1990-12-06 | Mortgage $265,000 — from CORION REALTY CORP to GREEN POINT SAVS BANK | $265,000 |
| Year | Enforcement | Housing & tenants | Health & systems | Total |
|---|---|---|---|---|
| 2017 | 0 | 3 | 0 | 3 |
| 2018 | 0 | 0 | 1 | 1 |
| 2019 | 0 | 30 | 1 | 31 |
| 2020 | 0 | 2 | 1 | 3 |
| 2021 | 0 | 8 | 1 | 9 |
| 2022 | 1 | 42 | 1 | 44 |
| 2023 | 0 | 34 | 0 | 34 |
| 2024 | 2 | 55 | 0 | 57 |
| 2025 | 3 | 44 | 1 | 48 |
| 2026 | 0 | 3 | 2 | 5 |
Every one of the 427 recorded events, 1966–2026, 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