548 recorded events, 1967–2026, from 17 city data systems. The city's paper trail here is mostly 185 311 service requests, 138 HPD complaints, 89 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 61% 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 42.8. In ZIP 10031, 40% of residential buildings hold an A and 14% 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 | 22 total — 1 class C (immediately hazardous), 11 class B, 10 class A. Oldest open since 2021-10-15. |
status snapshot refreshed weekly from HPD records
6 heat or hot-water complaints in the last three years (winter 2023–24: 2 · winter 2025–26: 4). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
48 service requests in the last three years. Most common: DOOR/WINDOW (9) · Illegal Parking (6) · WATER LEAK (5) · FLOORING/STAIRS (5) · For Hire Vehicle Complaint (4) · HEAT/HOT WATER (3).
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 (1898) |
| Yes | Six or more residential units (33) |
| 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) | CITYWIDE |
| Head officer | RICK GROPPER |
| Managing agent | DOLPHIN PROPERTY SERVICES LLC |
| Last registered | 2025-12-01 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $2,210,000 | $994,500 |
| 2026 | $2,527,000 | $1,137,150 |
| 2027 | $2,598,000 | $1,169,100 |
The city's market estimate has risen 18% between tax years 2025 and 2027.
Tax exemptions on the roll: 420C
| 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 | 155 St — C · 900 ft straight-line (about a 4-minute walk) · station accessibility: none 145 St — A B C D · 0.2 mi straight-line (about a 5-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Saint Nicholas Av / W 151 St — M3 · 100 ft |
| Citi Bike | Convent Ave & W 151 St · 250 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 028 Wright Brothers Middle: Community Math & Science Prep. 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.
830 St Nicholas 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 |
48 311 service requests from this address in the last three years — 3 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 DOLPHIN PROPERTY SERVICES LLC — 79 buildings, 4,889 units. Grades across the portfolio: A5 · B32 · C22 · D16 · F2. See the whole portfolio
showing 60 of 79 buildings
Most recent mortgage recorded against this lot: $901,237 on 2014-05-08 (lender: New York City Housing Development Corporation), covering 31 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 |
|---|---|---|---|
| 2014-05-14 | Agreement $26,434,399 — from CITYWIDE PRESERVATION LLC; ECDO CITYWIDE PRESERVATION HOUSING DEVEL to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $26,434,399 | |
| 2014-05-08 | Mortgage $901,237 — from ECDO CITYWIDE PRESERVATION HOUSING DEVEL; CITYWIDE PRESERVATION LLC to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $901,237 | |
| 2012-08-23 | Agreement $1,957,094 — from HOUSING TRUST FUND CORPORATION to CITYWIDE PRESERVATION LLC; ECDO CITYWIDE PRESERVATION HOUSING DEVEL | $1,957,094 | |
| 2012-08-23 | Agreement $26,434,399 — from CITYWIDE PRESERVATION LLC; ECDO CITYWIDE PRESERVATION HOUSING DEVEL to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $26,434,399 | |
| 2012-08-23 | Mortgage $4,326,059 — from CITYWIDE PRESERVATION LLC; ECDO CITYWIDE PRESERVATION HOUSING DEVEL to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $4,326,059 | |
| 2012-08-23 | Mortgage $18,140,191 — from ECDO CITYWIDE PRESERVATION HOUSING DEVEL; CITYWIDE PRESERVATION LLC to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $18,140,191 | |
| 2012-08-23 | Mortgage $18,633,750 — from CITYWIDE PRESERVATION LLC; ECDO CITYWIDE PRESERVATION HOUSING DEVEL to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $18,633,750 | |
| 2012-07-24 | Deed $3,642,287 — from AUGUSTA SAVAGE ASSOCIATES, L.P. to ECDO CITYWIDE PRESERVATION HOUSING DEVEL | $3,642,287 | |
| 2011-08-05 | AL&R $802,306 — from AUGUSTA SAVAGE ASSOCIATES, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR; THE CITY OF NEW YORK | $802,306 | |
| 2011-08-05 | Agreement $2,702,770 — from AUGUSTA SAVAGE ASSOCIATES, L.P. to THE CITY OF NEW YORK | $2,702,770 | |
| 2011-08-05 | Mortgage $478,285 — from AUGUSTA SAVAGE ASSOCIATES, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $478,285 | |
| 2011-08-05 | Mortgage $324,021 — from AUGUSTA SAVAGE ASSOCIATES, L.P. to THE CITY OF NEW YORK | $324,021 | |
| 2011-08-05 | RPTT&RET $2,851,377 — from NEW YORK EQUITY FUND 1993 LIMITED PARTNE to AUGUSTA SAVAGE HOUSING DEVELOPMENT FUND | $2,851,377 | |
| 1994-07-20 | Mortgage $2,702,770 — from AUGUSTA SAVAGE ASSOCIATES, L.P. to CITY OF NEW YORK HPD | $2,702,770 |
| Year | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|
| 2017 | 0 | 21 | 0 | 2 | 23 |
| 2018 | 0 | 1 | 0 | 2 | 3 |
| 2019 | 2 | 2 | 0 | 1 | 5 |
| 2020 | 0 | 5 | 0 | 1 | 6 |
| 2021 | 2 | 23 | 0 | 2 | 27 |
| 2022 | 0 | 69 | 0 | 5 | 74 |
| 2023 | 0 | 79 | 1 | 6 | 86 |
| 2024 | 0 | 62 | 0 | 4 | 66 |
| 2025 | 4 | 23 | 0 | 8 | 35 |
| 2026 | 0 | 26 | 0 | 3 | 29 |
Every one of the 548 recorded events, 1967–2026, is laid out year by year in the full report (print-ready).
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