435 recorded events, 1966–2026, from 19 city data systems. The city's paper trail here is mostly 127 311 service requests, 83 ACRIS deeds & mortgages, 67 HPD complaints.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 74% 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 81.3. 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 | 5 total — 3 class C (immediately hazardous), 2 class B, 0 class A. Oldest open since 2023-08-25. |
status snapshot refreshed weekly from HPD records
17 heat or hot-water complaints in the last three years (winter 2023–24: 2 · winter 2025–26: 7). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
$7,750 in enforcement penalties imposed (ECB/OATH) in the last three years.
63 service requests in the last three years. Most common: Noise (12) · UNSANITARY CONDITION (11) · HEAT/HOT WATER (8) · PLUMBING (8) · Water System (7) · Lead (4).
$749,951 in permitted construction work filed since 2016 (2 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 (30) |
| 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 | $1,400,000 | $630,000 |
| 2026 | $1,444,000 | $649,800 |
| 2027 | $1,641,000 | $738,450 |
The city's market estimate has risen 17% between tax years 2025 and 2027.
Tax exemptions on the roll: 420C
| 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 | 170 St — B D · 800 ft straight-line (about a 4-minute walk) · station accessibility: none Mt Eden Av — 4 · 800 ft straight-line (about a 4-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Grand Concourse / E 172 St — Bx1 Bx2 · 650 ft |
| Citi Bike | Walton Ave & E 171 St · 600 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.
1517 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 |
63 311 service requests from this address in the last three years — 8 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 $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 | |
| 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 $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 | |
| 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 | Deed $84,500,000 — from THE CRENULATED COMPANY LTD. to NSA 2015 HOUSING DEVELOPMENT FUND CORPOR | $84,500,000 | |
| 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 $86,000,000 — from NSA 2015 HOUSING DEVELOPMENT FUND CORPOR; NSA 2015 OWNER LLC to NEW YORK STATE HOUSING FINANCE AGENCY | $86,000,000 | |
| 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 $8,703,172 — from NSA 2015 HOUSING DEVELOPMENT FUND CORP.; NSA 2015 OWNER LLC to SETTLEMENT HOUSING FUND INC. | $8,703,172 | |
| 2016-07-14 | Mortgage $61,765,000 — from NSA 2015 HOUSING DEVELOPMENT FUND CORPOR to THE CRENULATED COMPANY LTD. | $61,765,000 | |
| 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 $36,864 — from CRENULATED COMPANY,LTD to CITY OF NEW YORK/HPD | $36,864 | |
| 1990-08-14 | Mortgage $3,348,344 — from CRENULATED COMPANY,LTD. to CITY OF NEW YORK/HPD | $3,348,344 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 5 | 1 | 10 | 0 | 2 | 18 |
| 2018 | 1 | 0 | 4 | 0 | 6 | 11 |
| 2019 | 0 | 0 | 6 | 13 | 4 | 23 |
| 2020 | 0 | 0 | 5 | 0 | 3 | 8 |
| 2021 | 0 | 0 | 8 | 0 | 3 | 11 |
| 2022 | 0 | 0 | 17 | 0 | 6 | 23 |
| 2023 | 0 | 2 | 43 | 0 | 4 | 49 |
| 2024 | 0 | 6 | 53 | 1 | 4 | 64 |
| 2025 | 0 | 4 | 54 | 0 | 5 | 63 |
| 2026 | 0 | 1 | 29 | 0 | 4 | 34 |
Every one of the 435 recorded events, 1966–2026, is laid out year by year in the full report (print-ready).
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