791 recorded events, 1968–2026, from 17 city data systems. The city's paper trail here is mostly 355 311 service requests, 69 DOB permits, 63 HPD complaints.
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 58% of 100+-unit residential buildings citywide. The citywide median for 100+-unit residential buildings is 3.7 penalty points per 10 units; this building carries 2.4. In ZIP 10024, 70% of residential buildings hold an A and 2% grade D or F. How grades work
Among 4,677 100+-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.
16 heat or hot-water complaints in the last three years (winter 2023–24: 6 · winter 2025–26: 4 · winter 2026–27: 2). Repeated winter clusters suggest a chronic heating problem.
11 bedbug-infested unit(s) reported in filings over the last three years.
$21,150 in enforcement penalties imposed (ECB/OATH) in the last three years.
105 service requests in the last three years. Most common: Noise (22) · Air Quality (20) · Illegal Parking (18) · HEAT/HOT WATER (8) · Vendor Enforcement (5) · PLUMBING (4).
$1,041,087 in permitted construction work filed since 2016 (16 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.
| No | Built before 1974 (1997) |
| Yes | Six or more residential units (265) |
| Yes | 421-a / J-51 tax benefit on the current tax roll |
2 of 3 signals present. Buildings receiving 421-a or J-51 benefits are generally required to register their units as rent-stabilized for the duration of the benefit. The definitive answer for any unit: request its rent history from NYS Homes & Community Renewal (free, at hcr.ny.gov).
| Registered owner(s) | LPF Sagamore, LLC |
| Head officer | Alex Rosen |
| Managing agent | Grep Atlantic |
| Last registered | 2025-11-21 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $69,448,000 | $31,251,600 |
| 2026 | $79,749,000 | $35,887,050 |
| 2027 | $79,619,000 | $35,828,550 |
The city's market estimate has risen 15% between tax years 2025 and 2027.
Tax exemptions on the roll: 421A 20 YR NO CAP
| Energy grade (LL33) | C — ENERGY STAR score 67/100 (2022 disclosure cycle) |
| Heating fuel | NATURALGAS |
| Facade (Local Law 11) | SWARMP — "Safe With A Repair and Maintenance Program": known facade conditions that must be repaired (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 2021 (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 | 86 St — 1 · 950 ft straight-line (about a 5-minute walk) · station accessibility: none 96 St — 1 2 3 · 0.2 mi straight-line (about a 6-minute walk) · station accessibility: full |
| Bus | Nearest boarding stop: Amsterdam Av / W 89 St — M7 M11 · 200 ft |
| Citi Bike | W 90 St & Amsterdam Ave · 150 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 084 Lillian Weber. 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.
601 Amsterdam 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 |
105 311 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 GREP ATLANTIC LLC — 5 buildings, 1,736 units. Grades across the portfolio: A4 · B1. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 0 West Street | BK | 834 | A |
| 116 John Street | MN | 416 | B |
| 601 Amsterdam Avenue | MN | 265 | A |
| 309 5 Avenue | MN | 165 | A |
| 51 Irving Place | MN | 56 | A |
Most recent mortgage recorded against this lot: $53,000,000 on 2000-04-11 (lender: New York City Housing Development Corportion). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.
| Date | Record | Amount | Per res. unit |
|---|---|---|---|
| 2011-05-18 | Agreement $53,000,000 — from LPF SAGAMORE, INC.; NEW YORK CITY HOUSING DEVELOPMENT CORPOR; KBF RELATED AMSTERDAM PARTNE to FANNIE MAE; THE BANK OF NEW YORK MELLON | $53,000,000 | |
| 2011-05-18 | Agreement $53,000,000 — from KBF RELATED AMSTERDAM PARTNERS, L.P.; THE RELATED COMPANIES, L.P.; LPF SAGAMORE, INC. to FANNIE MAE; LASALLE PROPERTY FUND, L.P.; LASALLE PROPERTY FUND REIT, INC. | $53,000,000 | |
| 2011-05-18 | Agreement $53,000,000 — from LPF SAGAMORE, INC. to THE BANK OF NEW YORK MELLON; FANNIE MAE | $53,000,000 | |
| 2011-05-18 | Agreement $53,000,000 — from LPF SAGAMORE, INC. to FANNIE MAE | $53,000,000 | |
| 2011-05-03 | Deed $139,100,000 — from KBF RELATED AMSTERDAM PARTNERS, L.P. to LPF SAGAMORE, INC. | $139,100,000 | |
| 2000-04-11 | Mortgage $53,000,000 — from KBF RELATED AMSTERDAM PARTNERS, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $53,000,000 | |
| 2000-04-11 | Mortgage $53,000,000 — from KBF RELATED AMSTERDAM PARTNERS, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $53,000,000 | |
| 2000-04-11 | Mortgage $53,000,000 — from KBF RELATED AMSTERDAM PARTNERS, L.P. to FANNIE MAE | $53,000,000 | |
| 1997-02-18 | Mortgage $7,973,224 — from KBF RELATED AMSTERDAM PARTNERS, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $7,973,224 | |
| 1997-02-18 | Mortgage $13,026,776 — from KBF RELATED AMSTERDAM PARTNERS, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $13,026,776 | |
| 1997-02-18 | Mortgage $25,200,000 — from KBF RELATED AMSTERDAM PARTNERS, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $25,200,000 | |
| 1997-02-18 | Mortgage $6,800,000 — from KBF RELTED AMSTERDAMPARTNERS, L.P. to NEW YORK CITY HOUSING DEVELOPMENT CORPOR | $6,800,000 |
| Year | Construction | Enforcement | Housing & tenants | Health & systems | Total |
|---|---|---|---|---|---|
| 2017 | 2 | 1 | 8 | 3 | 14 |
| 2018 | 1 | 7 | 17 | 7 | 32 |
| 2019 | 0 | 0 | 15 | 8 | 23 |
| 2020 | 0 | 0 | 56 | 2 | 58 |
| 2021 | 0 | 6 | 61 | 0 | 67 |
| 2022 | 4 | 5 | 58 | 7 | 74 |
| 2023 | 2 | 20 | 40 | 9 | 71 |
| 2024 | 9 | 3 | 29 | 7 | 48 |
| 2025 | 9 | 3 | 62 | 15 | 89 |
| 2026 | 9 | 12 | 21 | 8 | 50 |
Every one of the 791 recorded events, 1968–2026, is laid out year by year in the full report (print-ready).
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