847 recorded events, 1969–2026, from 20 city data systems. The city's paper trail here is mostly 233 311 service requests, 195 HPD complaints, 165 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 70% 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 66. In ZIP 10452, 28% of residential buildings hold an A and 24% 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 | 4 total — 1 class C (immediately hazardous), 1 class B, 2 class A. Oldest open since 2024-07-19. |
status snapshot refreshed weekly from HPD records
15 heat or hot-water complaints in the last three years (winter 2024–25: 6 · winter 2025–26: 4). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
$4,375 in enforcement penalties imposed (ECB/OATH) in the last three years.
60 service requests in the last three years. Most common: Noise (13) · HEAT/HOT WATER (7) · UNSANITARY CONDITION (6) · WATER LEAK (4) · ELECTRIC (4) · PAINT/PLASTER (4).
$1,465,559 in permitted construction work filed since 2016 (5 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 (54) |
| 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) | NSA 2015 OWNER LLC |
| Head officer | JACQUELINE TOM |
| Managing agent | WAVECREST MGMT GROUP |
| Last registered | 2026-07-17 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $2,805,000 | $1,262,250 |
| 2026 | $2,872,000 | $1,292,400 |
| 2027 | $3,123,000 | $1,405,350 |
The city's market estimate has risen 11% between tax years 2025 and 2027.
Tax exemptions on the roll: 420C
| Energy grade (LL33) | C — ENERGY STAR score 66/100 (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | UNSAFE — unsafe conditions reported (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.
1 street-flooding or sewer-backup complaints at this address since 2023 (0 in the last three years).
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 · 750 ft straight-line (about a 4-minute walk) · station accessibility: none 170 St — B D · 850 ft straight-line (about a 4-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Grand Concourse / Mount Eden Av — Bx1 Bx2 BxM4 · 600 ft |
| Citi Bike | Walton Ave & E 171 St · 650 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: 170 (K-2), 70 (3-5). 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.
1525 Walton 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 |
60 311 service requests from this address in the last three years — 7 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 WAVECREST MGMT GROUP — 362 buildings, 31,199 units. Grades across the portfolio: A86 · B145 · C84 · D33 · F13. See the whole portfolio
showing 60 of 362 buildings
Most recent mortgage recorded against this lot: $19,985,760 on 2019-04-11 (lender: The City Of New York Acting By And Through Its Dep), covering 15 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 |
|---|---|---|---|
| 2019-04-11 | Mortgage $19,985,760 — from NSA 2015 HOUSING DEVELOPMENT FUND CORPOR; NSA 2015 OWNER LLC to THE CITY OF NEW YORK ACTING BY AND THROU | $19,985,760 | |
| 2019-04-11 | Mortgage $24,425,000 — from NSA 2015 OWNER LLC; NSA 2015 HOUSING DEVELOPMENT FUND CORPOR to FANNIE MAE | $24,425,000 | |
| 2019-04-11 | Mortgage $24,425,000 — from NSA 2015 HOUSING DEVELOPMENT FUND CORPOR; NSA 2015 OWNER LLC to NEW YORK STATE HOUSING FINANCE AGENCY; FANNIE MAE | $24,425,000 | |
| 2016-07-14 | Deed $84,500,000 — from THE CRENULATED COMPANY LTD. to NSA 2015 HOUSING DEVELOPMENT FUND CORPOR | $84,500,000 | |
| 2016-07-14 | Mortgage $61,765,000 — from NSA 2015 HOUSING DEVELOPMENT FUND CORPOR to THE CRENULATED COMPANY LTD. | $61,765,000 | |
| 2016-07-14 | Agreement $694,215 — from THE CRENULATED COMPANY LTD. to THE CITY OF NEW YORK | $694,215 | |
| 2016-07-14 | Agreement $91,727,788 — from THE CRENULATED COMPANY LTD. to THE CITY OF NEW YORK | $91,727,788 | |
| 2016-07-14 | Mortgage $8,703,172 — from NSA 2015 HOUSING DEVELOPMENT FUND CORP.; NSA 2015 OWNER LLC to SETTLEMENT HOUSING FUND INC. | $8,703,172 | |
| 2016-07-14 | Mortgage $893,000 — from NSA 2015 HOUSING DEVELOPMENT FUND CORP.; NSA 2015 OWNER LLC to SETTLEMENT HOUSING FUND INC. | $893,000 | |
| 2016-07-14 | Mortgage $8,000,000 — from NSA 2015 OWNER LLC; NSA 2015 HOUSING DEVELOPMENT FUND CORP. to SETTLEMENT HOUSING FUND INC. | $8,000,000 | |
| 2016-07-14 | Mortgage $86,000,000 — from NSA 2015 HOUSING DEVELOPMENT FUND CORPOR; NSA 2015 OWNER LLC to NEW YORK STATE HOUSING FINANCE AGENCY | $86,000,000 | |
| 2003-12-29 | Mortgage $831,000 — from THE CRENULATED COMPANY LTD. to CITY OF NEW YORK DEPT. OF HOUSING PRESER | $831,000 | |
| 1991-02-15 | Mortgage $5,372,305 — from CITY OF NEW YORK to CRENULATED COMPANY,LTD. | $5,372,305 | |
| 1990-08-14 | Mortgage $60,111 — from CRENULATED COMPANY,LTD to CITY OF NEW YORK/HPD | $60,111 | |
| 1990-08-14 | Mortgage $5,323,975 — from CRENULATED COMPANY LTD to CITY OF NEW YORK/HPD | $5,323,975 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 6 | 2 | 58 | 0 | 2 | 68 |
| 2018 | 2 | 2 | 12 | 0 | 5 | 21 |
| 2019 | 0 | 2 | 10 | 13 | 4 | 29 |
| 2020 | 0 | 1 | 24 | 0 | 3 | 28 |
| 2021 | 0 | 0 | 11 | 0 | 3 | 14 |
| 2022 | 0 | 3 | 21 | 0 | 4 | 28 |
| 2023 | 2 | 10 | 122 | 0 | 5 | 139 |
| 2024 | 3 | 2 | 86 | 1 | 4 | 96 |
| 2025 | 1 | 1 | 31 | 0 | 6 | 39 |
| 2026 | 2 | 2 | 44 | 0 | 3 | 51 |
Every one of the 847 recorded events, 1969–2026, is laid out year by year in the full report (print-ready).
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