468 recorded events, 1988–2026, from 17 city data systems. The city's paper trail here is mostly 138 ACRIS deeds & mortgages, 68 DOB permits, 64 311 service requests.
Full record, year by year Support this site
The city's published records show little recorded distress here in the last three years. Less recorded distress than 53% 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 14.4. In ZIP 10010, 74% of residential buildings hold an A and 5% grade D or F. How grades work
Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more
No current HPD flags in the latest weekly snapshot: no open violations, no pending litigation, no active vacate orders, and not in the Alternative Enforcement Program.
No heat or hot-water complaints in the last three years.
No bedbug-infested units reported in the last three years of filings.
$625 in enforcement penalties imposed (ECB/OATH) in the last three years.
11 service requests in the last three years. Most common: Encampment (2) · Illegal Parking (2) · Homeless Person Assistance (1) · New Tree Request (1) · Noise (1) · For Hire Vehicle Complaint (1).
$4,710,325 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 (1910) |
| Yes | Six or more residential units (9) |
| 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) | 50 MADISON AVENUE CONDOMINIUM |
| Head officer | GREGORY WELTEROTH |
| Managing agent | ORSID NY |
| Last registered | 2026-06-12 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $886,260 | $398,817 |
| 2026 | $906,320 | $407,844 |
| 2027 | $256,332 | $115,349 |
The city's market estimate has fallen 71% between tax years 2025 and 2027.
Tax exemptions on the roll: SENIOR CITIZEN HOMEOWNER
For property tax, the Department of Finance values this condo as if it were a rental building. Its 2023 estimate: gross income $1,551,373 a year ($57.90 per sq ft), operating expenses $465,412 ($17.37 per sq ft), net operating income $1,085,961. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.
| 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.
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 | 28 St — 6 · 450 ft straight-line (about a 2-minute walk) · station accessibility: partial (Downtown only) 23 St — R W · 850 ft straight-line (about a 4-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: 5 Av / W 26 St — M1 M2 M3 M55 · 450 ft |
| Citi Bike | Madison Ave & E 26 St · 150 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 116 Mary Lindley Murray Middle: J.H.S. 104 Simon Baruch. 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.
50 Madison 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 |
11 311 service requests from this address in the last three years.
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 ORSID NY — 243 buildings, 30,702 units. Grades across the portfolio: A227 · B13 · C2. See the whole portfolio
showing 60 of 243 buildings
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2024-06-07 | Deed $6,500,000 — from KHOUDARI, ERNESTO; FRITZ, ALEXANDRA to HU, YUNG-CHING | $6,500,000 | |
| 2024-06-04 | Mortgage $1,000,000 — from CHC INTERNATIONAL LLC to HSBC BANK USA, N.A. | $1,000,000 | |
| 2024-05-21 | Sold for $6,500,000 | $6,500,000 | $722,222 |
| 2023-11-08 | Mortgage $5,400,000 — from 50 MADISON AVE PH, LLC to BRANDT, ROBERT ALAN | $5,400,000 | |
| 2023-11-08 | Deed $9,000,000 — from BRANDT, ROBERT ALAN to 50 MADISON AVE PH, LLC | $9,000,000 | |
| 2023-11-01 | Sold for $9,000,000 | $9,000,000 | $1,000,000 |
| 2023-04-07 | Deed $5,787,500 — from GREWAL, SUMAER to CHU, MARGARET; PRATA, GREGORY | $5,787,500 | |
| 2023-04-07 | Mortgage $3,000,000 — from CHU, MARGARET; PRATA, GREGORY to WELLS FARGO BANK, N.A. | $3,000,000 | |
| 2023-03-31 | Sold for $5,787,500 | $5,787,500 | $643,056 |
| 2021-09-17 | Mortgage $3,000,000 — from 50 MADISON AVE UNIT 2, LLC to CITIBANK, N.A.; MORTGAGE ELECTRONIC REGISTRATION SYSTEMS | $3,000,000 | |
| 2021-09-17 | Deed $4,350,000 — from FRIEDMAN, ROBERT B to 50 MADISON AVE UNIT 2, LLC | $4,350,000 | |
| 2021-08-20 | Sold for $4,350,000 | $4,350,000 | $483,333 |
| 2020-03-05 | Agreement $3,000,000 — from GREWAL, SUMAER to BETHPAGE FEDERAL CREDIT UNION | $3,000,000 | |
| 2020-02-10 | Mortgage $1,150,000 — from WATSON SANGER, JEANNETTE to RIDGEWOOD SAVINGS BANK | $1,150,000 | |
| 2019-11-25 | Agreement $2,000,000 — from KHOUDARI, ERNESTO; FRITZ, ALEXANDRA to CITIBANK, N.A. | $2,000,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 0 | 1 | 9 | 7 | 13 | 30 |
| 2018 | 0 | 5 | 5 | 0 | 11 | 21 |
| 2019 | 0 | 2 | 13 | 1 | 3 | 19 |
| 2020 | 0 | 0 | 5 | 3 | 2 | 10 |
| 2021 | 0 | 3 | 3 | 7 | 3 | 16 |
| 2022 | 0 | 2 | 5 | 1 | 3 | 11 |
| 2023 | 4 | 2 | 5 | 10 | 4 | 25 |
| 2024 | 3 | 1 | 7 | 7 | 3 | 21 |
| 2025 | 15 | 3 | 6 | 0 | 1 | 25 |
| 2026 | 13 | 2 | 2 | 0 | 1 | 18 |
Every one of the 468 recorded events, 1988–2026, is laid out year by year in the full report (print-ready).
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