209 recorded events, 1966–2026, from 14 city data systems. The city's paper trail here is mostly 71 311 service requests, 57 ACRIS deeds & mortgages, 26 rodent inspections.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 68% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty points per 10 units; this building carries 38.8. In ZIP 10031, 40% of residential buildings hold an A and 14% grade D or F. How grades work
Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more
| Open HPD violations | 4 total — 2 class C (immediately hazardous), 2 class B, 0 class A. Oldest open since 2001-06-12. |
status snapshot refreshed weekly from HPD records
2 heat or hot-water complaints in the last three years (winter 2025–26: 2).
No bedbug-infested units reported in the last three years of filings.
8 service requests in the last three years. Most common: Noise (3) · Abandoned Vehicle (1) · Derelict Vehicles (1) · HEAT/HOT WATER (1) · Sidewalk Condition (1) · Illegal Parking (1).
$89,460 in permitted construction work filed since 2016 (6 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 (1892) |
| Yes | Six or more residential units (8) |
| 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) | MAYFIELD CAPITAL LLC |
| Head officer | ALEX YELON |
| Managing agent | BUILDING EQUITY MANAGEMENT LLC |
| Last registered | 2026-07-29 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $961,000 | $432,450 |
| 2026 | $974,000 | $438,300 |
| 2027 | $779,000 | $350,550 |
The city's market estimate has fallen 19% between tax years 2025 and 2027.
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 | 145 St — A B C D · 350 ft straight-line (about a 2-minute walk) · station accessibility: none 145 St — 1 · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: Saint Nicholas Av / W 148 St — M3 · 400 ft |
| Citi Bike | W 148 St & Amsterdam Ave · 450 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 153 Adam Clayton Powell Middle: 319, 324. 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.
441 West 147 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 |
8 311 service requests from this address in the last three years — 1 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 BUILDING EQUITY MANAGEMENT LLC — 103 buildings, 1,953 units. Grades across the portfolio: A71 · B18 · C7 · D5 · F1. See the whole portfolio
showing 60 of 103 buildings
Most recent mortgage recorded against this lot: $2,790,000 on 2022-05-10 (lender: First Republic Bank). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2022-06-02 | Agreement $3,402,479 — from COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC to FIRST REPUBLIC BANK | $3,402,479 | |
| 2022-05-10 | Agreement $2,790,000 — from MAYFIELD CAPITAL LLC; COSAR CAPITAL LLC to FIRST REPUBLIC BANK | $2,790,000 | |
| 2022-05-10 | Mortgage $2,790,000 — from MAYFIELD CAPITAL LLC; COSAR CAPITAL LLC to FIRST REPUBLIC BANK | $2,790,000 | |
| 2022-05-10 | AL&R $2,790,000 — from MAYFIELD CAPITAL LLC; COSAR CAPITAL LLC to FIRST REPUBLIC BANK | $2,790,000 | |
| 2022-05-10 | Agreement $3,402,479 — from COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC to FIRST REPUBLIC BANK | $3,402,479 | |
| 2017-12-04 | Mortgage $951,750 — from CHICAMA HOLDINGS LLC; COSAR CAPITAL LLC to SANTANDER BANK, N.A. | $951,750 | |
| 2017-12-04 | Agreement $3,725,000 — from COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC to SANTANDER BANK, N.A. | $3,725,000 | |
| 2015-06-22 | Agreement $1,685,959 — from CHICAMA HOLDINGS LLC; CONVENT AVENUE, LLC; COSAR CAPITAL LLC; SARSHAR, HOUMAN to SANTANDER BANK, N.A. | $1,685,959 | |
| 2015-06-22 | Agreement $1,247,734 — from COSAR CAPITAL LLC; CONVENT AVENUE, LLC; CHICAMA HOLDINGS LLC; SARSHAR, HOUMAN to SANTANDER BANK, N.A. | $1,247,734 | |
| 2014-12-15 | Mortgage $1,700,000 — from CONVENT AVENUE, LLC to SANTANDER BANK, N.A. | $1,700,000 | |
| 2010-11-18 | Mortgage $105,577 — from CONVENT AVENUE, LLC to SOVEREIGN BANK | $105,577 | |
| 2010-11-18 | Agreement $1,350,000 — from CONVENT AVENUE, LLC to SOVEREIGN BANK | $1,350,000 | |
| 2007-07-16 | AL&R $1,300,000 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND | $1,300,000 | |
| 2007-07-16 | Mortgage $474,186 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND | $474,186 | |
| 2007-07-16 | Agreement $1,300,000 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND | $1,300,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 3 | 4 | 10 | 2 | 3 | 22 |
| 2018 | 5 | 1 | 1 | 0 | 2 | 9 |
| 2019 | 1 | 0 | 3 | 0 | 1 | 5 |
| 2020 | 1 | 0 | 7 | 0 | 1 | 9 |
| 2021 | 3 | 0 | 30 | 1 | 2 | 36 |
| 2022 | 2 | 0 | 7 | 9 | 3 | 21 |
| 2023 | 0 | 0 | 4 | 0 | 4 | 8 |
| 2024 | 0 | 0 | 3 | 2 | 6 | 11 |
| 2025 | 0 | 0 | 4 | 0 | 5 | 9 |
| 2026 | 0 | 0 | 4 | 0 | 3 | 7 |
Every one of the 209 recorded events, 1966–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 10031 · Landlord rankings · How grades work · The map · The Mice Map