248 recorded events, 1982–2026, from 16 city data systems. The city's paper trail here is mostly 53 311 service requests, 51 HPD complaints, 43 ACRIS deeds & mortgages.
Full record, year by year Support this site
A modest record — below the level that usually signals systemic problems. More recorded distress than 75% 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 59.7. In ZIP 11213, 61% of residential buildings hold an A and 11% 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 | 2 total — 1 class C (immediately hazardous), 1 class B, 0 class A. Oldest open since 2024-11-27. |
status snapshot refreshed weekly from HPD records
22 heat or hot-water complaints in the last three years (winter 2024–25: 12 · winter 2025–26: 10). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
17 service requests in the last three years. Most common: HEAT/HOT WATER (10) · Snow or Ice (2) · Water System (1) · PLUMBING (1) · SAFETY (1) · Lead (1).
$692,550 in permitted construction work filed since 2016 (8 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 (1906) |
| 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) | AC 910 PROSPECT LLC |
| Head officer | ALEXANDER J HORN |
| Managing agent | Cobble Hill Management |
| Last registered | 2025-07-16 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $1,409,600 | $634,320 |
| 2026 | $1,692,000 | $761,400 |
| 2027 | $1,502,000 | $675,900 |
The city's market estimate has risen 7% between tax years 2025 and 2027.
| 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 | Nostrand Av — 3 · 0.3 mi straight-line (about a 9-minute walk) · station accessibility: none |
| Bus | Nearest boarding stop: New York Av / Prospect Pl — B44 · 300 ft |
| Citi Bike | New York Ave & St Marks Ave · 500 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 289 George V. Brower Middle: The School of Integrated Learning. 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.
910 Prospect Place
| 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 |
17 311 service requests from this address in the last three years — 10 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 COBBLE HILL MANAGEMENT — 35 buildings, 277 units. Grades across the portfolio: A16 · B9 · C7 · D2 · F1. See the whole portfolio
| Building | Borough | Units | Grade |
|---|---|---|---|
| 118 2 Avenue | MN | 23 | A |
| 879 DeKalb Avenue | BK | 22 | B |
| 43 West 27 Street | MN | 16 | A |
| 216 Macon Street | BK | 16 | A |
| 212 Lafayette Street | MN | 16 | A |
| 1063 Bedford Avenue | BK | 14 | A |
| 223 Bainbridge Street | BK | 9 | B |
| 654 Putnam Avenue | BK | 9 | C |
| 804 Macon Street | BK | 8 | A |
| 319 Malcolm X Boulevard | BK | 8 | A |
| 439 Bleecker Street | BK | 8 | B |
| 910 Prospect Place | BK | 8 | B |
| 151 Avenue A | MN | 8 | A |
| 669 East 21 Street | BK | 8 | C |
| 475 Hancock Street | BK | 8 | C |
| 283 Evergreen Avenue | BK | 8 | A |
| 790 Madison Street | BK | 8 | C |
| 788 Madison Street | BK | 8 | A |
| 419 Marcus Garvey Blvd | BK | 8 | A |
| 69 Leonard Street | MN | 7 | A |
| 810 Macon Street | BK | 6 | A |
| 45 Kingston Avenue | BK | 6 | C |
| 808 Macon Street | BK | 6 | A |
| 814 Macon Street | BK | 6 | B |
| 1868 Putnam Avenue | QN | 6 | B |
| 923 Gates Avenue | BK | 4 | B |
| 701 Fulton Street | BK | 4 | C |
| 296 St Nicholas Avenue | BK | 3 | C |
| 451 Classon Avenue | BK | 3 | D |
| 429 Herkimer Street | BK | 3 | F |
| 412 Linden Street | BK | 3 | D |
| 300 St Nicholas Avenue | BK | 2 | B |
| 703 Fulton Street | BK | 2 | A |
| 298 St Nicholas Avenue | BK | 2 | B |
| 310 East 69 Street | MN | 1 | A |
Most recent mortgage recorded against this lot: $3,828,146 on 2022-08-22 (lender: Signature Bank), covering 9 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 |
|---|---|---|---|
| 2022-08-22 | AL&R $27,500,000 — from AC 910 PROSPECT LLC; AC MADISON LLC; AC 45 KINGSTON LLC; AC 216 MACON LLC; AC 475 HANCOCK to SIGNATURE BANK | $27,500,000 | |
| 2022-08-22 | Agreement $27,500,000 — from AC 442 DECATUR LLC; AC 475 HANCOCK LLC; AC 910 PROSPECT LLC; AC 216 MACON LLC; AC MADISON to SIGNATURE BANK | $27,500,000 | |
| 2022-08-22 | Mortgage $3,828,146 — from AC 475 HANCOCK LLC; AC 1050 LAFAYETTE LLC; AC MADISON LLC; AC 216 MACON LLC; AC 442 DECATU to SIGNATURE BANK | $3,828,146 | |
| 2022-08-12 | Deed $2,450,000 — from AV PROSPECT OWNER LLC to AC 910 PROSPECT LLC | $2,450,000 | |
| 2022-08-03 | Sold for $2,450,000 | $2,450,000 | $306,250 |
| 2022-04-27 | Mortgage $516,830 — from AV PROSPECT OWNER LLC; AV BAINBRIDGE OWNER LLC; AV KINGSTON OWNER LLC; AV MADISON OWNER LL to SILICON VALLEY BANK; BOSTON PRIVATE BANK & TRUST COMPANY | $516,830 | |
| 2022-04-27 | Agreement $14,501,530 — from AV KINGSTON OWNER LLC; AV PROSPECT OWNER LLC; AV BAINBRIDGE OWNER LLC; AV HANCOCK OWNER LL to SILICON VALLEY BANK; BOSTON PRIVATE BANK & TRUST COMPANY | $14,501,530 | |
| 2015-07-31 | Deed $2,615,000 — from 910 PROSPECT PROPERTIES, CORP. to AV PROSPECT OWNER LLC | $2,615,000 | |
| 2010-11-26 | Agreement $550,000 — from 910 PROSPECT PROPERTIES CORP to CROSS RIVER BANK | $550,000 | |
| 2010-11-26 | Mortgage $217,238 — from 910 PROSPECT PROPERTIES CORP to CROSS RIVER BANK | $217,238 | |
| 2010-11-26 | AL&R $550,000 — from 910 PROSPECT PROPERTIES CORP to CROSS RIVER BANK | $550,000 | |
| 2004-11-16 | AL&R $385,000 — from 910 PROPERTIES CORP to GREENPOINT MORTGAGE FUNDING INC | $385,000 | |
| 2004-11-16 | Mortgage $174,055 — from 910 PROPERTIES CORP to GREENPOINT MORTGAGE FUNDING INC | $174,055 | |
| 2004-11-16 | Agreement $385,000 — from 910 PROPERTIES CORP to GREENPOINT MORTGAGE FUNDING INC | $385,000 | |
| 2001-07-18 | Mortgage $224,000 — from 910 PROSPECT PROPERTIES CORP to GREENPOINT MORTGAGEFUNDING INC | $224,000 |
| Year | Construction | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|---|
| 2017 | 4 | 1 | 4 | 0 | 2 | 11 |
| 2018 | 0 | 1 | 9 | 0 | 3 | 13 |
| 2019 | 3 | 1 | 5 | 0 | 4 | 13 |
| 2020 | 1 | 0 | 2 | 0 | 2 | 5 |
| 2021 | 0 | 0 | 8 | 1 | 11 | 20 |
| 2022 | 0 | 0 | 9 | 8 | 5 | 22 |
| 2023 | 0 | 0 | 3 | 0 | 4 | 7 |
| 2024 | 0 | 0 | 13 | 2 | 4 | 19 |
| 2025 | 0 | 0 | 22 | 0 | 3 | 25 |
| 2026 | 0 | 0 | 3 | 0 | 5 | 8 |
Every one of the 248 recorded events, 1982–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11213 · Landlord rankings · How grades work · The map · The Mice Map