1,598 recorded events, 1966–2026, from 19 city data systems. The city's paper trail here is mostly 638 HPD complaints, 544 311 service requests, 197 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 80% 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 109.4. In ZIP 10453, 41% of residential buildings hold an A and 19% 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 | 9 total — 4 class C (immediately hazardous), 4 class B, 1 class A. Oldest open since 2025-05-23. |
status snapshot refreshed weekly from HPD records
50 heat or hot-water complaints in the last three years (winter 2023–24: 4 · winter 2024–25: 6 · winter 2025–26: 34 · winter 2026–27: 4). Repeated winter clusters suggest a chronic heating problem.
1 bedbug-infested unit(s) reported in filings over the last three years.
210 service requests in the last three years. Most common: UNSANITARY CONDITION (41) · HEAT/HOT WATER (25) · DOOR/WINDOW (20) · PLUMBING (18) · PAINT/PLASTER (16) · APPLIANCE (14).
$802,424 in permitted construction work filed since 2016 (11 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 (1928) |
| Yes | Six or more residential units (55) |
| 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) | 1630 UNDERCO INC |
| Head officer | MATTHEW SCHMELZER |
| Managing agent | TRYAX REALTY MGT INC |
| Last registered | 2026-07-22 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $2,946,000 | $1,325,700 |
| 2026 | $2,982,000 | $1,341,900 |
| 2027 | $3,097,000 | $1,393,650 |
The city's market estimate has risen 5% between tax years 2025 and 2027.
| Energy grade (LL33) | A — ENERGY STAR score 87/100 (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | SAFE (cycle 9) |
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 | Mt Eden Av — 4 · 0.5 mi straight-line (about a 12-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Undercliff Av / W 176 St — Bx18A · 300 ft |
| Citi Bike | Popham Ave & W 174 St · 450 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: The New American Academy at Roberto Clemente State Park. 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.
1630 Undercliff 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 |
| Anything else | Anything else |
210 311 service requests from this address in the last three years — 25 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 TRYAX REALTY MGT INC — 31 buildings, 1,713 units. Grades across the portfolio: A8 · B16 · C6. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 141 West 139 Street | MN | 133 | C |
| 2735 Sedgwick Avenue | BX | 124 | C |
| 1027 Walton Avenue | BX | 85 | C |
| 267 Edgecombe Avenue | MN | 84 | B |
| 1478 Walton Avenue | BX | 79 | B |
| 1454 Walton Avenue | BX | 79 | A |
| 1475 Walton Avenue | BX | 68 | B |
| 54 Featherbed Lane | BX | 68 | B |
| 277 East 207 Street | BX | 68 | A |
| 56 East 174 Street | BX | 66 | B |
| 1720 University Avenue | BX | 62 | C |
| 1540 Walton Avenue | BX | 59 | B |
| 1643 Nelson Avenue | BX | 58 | B |
| 315 East 167 Street | BX | 55 | A |
| 47 Featherbed Lane | BX | 55 | A |
| 1630 Undercliff Avenue | BX | 55 | B |
| 390 East 153 Street | BX | 54 | B |
| 1506 Walton Avenue | BX | 53 | B |
| 2304 Grand Avenue | BX | 52 | B |
| 2305 Grand Avenue | BX | 52 | B |
| 1683 University Avenue | BX | 51 | B |
| 200 Bradhurst Avenue | MN | 41 | B |
| 196 Bradhurst Avenue | MN | 41 | C |
| 2375 Marion Avenue | BX | 40 | A |
| 1530 Plimpton Avenue | BX | 40 | A |
| 192 Bradhurst Avenue | MN | 35 | A |
| 116 West 176 Street | BX | 25 | A |
| 1733 University Avenue | BX | 21 | B |
| 3580 Netherland Avenue | BX | 5 | C |
| 3590 Netherland Avenue | BX | 5 | B |
| 105 Rockwood Street | BX | 0 | — |
Most recent mortgage recorded against this lot: $295,000 on 2019-12-30 (lender: JPMorgan Chase Bank, N.A.). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2024-09-03 | RPTT $1,068,542 — from RCG TOWER GROUP I, LLC to DCHSCU ACQUISITION HOLDINGS, LLC | $1,068,542 | |
| 2019-12-30 | Mortgage $295,000 — from 1630 UNDERCO, INC to JPMORGAN CHASE BANK, N.A. | $295,000 | |
| 2019-12-30 | Agreement $4,980,000 — from 1630 UNDERCO, INC to JPMORGAN CHASE BANK, N.A. | $4,980,000 | |
| 2016-06-27 | Mortgage $725,000 — from 1630 UNDERCO, INC. to JPMORGAN CHASE BANK, N.A. | $725,000 | |
| 2016-06-27 | Agreement $4,685,000 — from 1630 UNDERCO, INC. to JPMORGAN CHASE BANK, N.A. | $4,685,000 | |
| 2014-06-02 | Mortgage $360,000 — from 1630 UNDERCO INC to JPMORGAN CHASE BANK, N.A. | $360,000 | |
| 2014-06-02 | Agreement $3,960,000 — from 1630 UNDERCO INC to JPMORGAN CHASE BANK, N.A. | $3,960,000 | |
| 2011-02-25 | Mortgage $801,420 — from 1630 UNDERCO, INC. to CAPITAL ONE, N.A. | $801,420 | |
| 2011-02-25 | Agreement $3,600,000 — from 1630 UNDERCO, INC. to CAPITAL ONE, N.A. | $3,600,000 | |
| 2011-02-25 | AL&R $3,600,000 — from 1630 UNDERCO, INC. to CAPITAL ONE, N.A. | $3,600,000 | |
| 2006-03-24 | Mortgage $1,200,000 — from 1630 UNDERCO, INC. to ASORIA FEDERAL SAVINGS & LOAN ASSOCIATIO | $1,200,000 | |
| 2002-05-03 | Mortgage $1,650,000 — from 1630 UNDERCO, INC. to ASTORIA FEDERAL SAVINGS & LOAN ASSOICATI | $1,650,000 | |
| 2000-07-05 | Mortgage $1,335,000 — from 1630 UNDERCO, INC. to ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA | $1,335,000 | |
| 1990-01-09 | Mortgage $121,500 — from 1630 UNDERCO, INC. to CITY OF NEW YORK | $121,500 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 5 | 16 | 0 | 5 | 26 |
| 2018 | 0 | 6 | 8 | 0 | 4 | 18 |
| 2019 | 0 | 4 | 32 | 2 | 1 | 39 |
| 2020 | 9 | 0 | 25 | 0 | 2 | 36 |
| 2021 | 2 | 2 | 54 | 0 | 3 | 61 |
| 2022 | 2 | 2 | 110 | 0 | 1 | 115 |
| 2023 | 7 | 4 | 53 | 0 | 7 | 71 |
| 2024 | 1 | 1 | 117 | 2 | 6 | 127 |
| 2025 | 0 | 0 | 304 | 0 | 3 | 307 |
| 2026 | 0 | 2 | 132 | 0 | 2 | 136 |
Every one of the 1,598 recorded events, 1966–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 10453 · Landlord rankings · How grades work · The map · The Mice Map