466 recorded events, 1983–2026, from 15 city data systems. The city's paper trail here is mostly 182 HPD complaints, 138 311 service requests, 60 HPD housing violations.
Full record, year by year Support this site
A meaningful record of code violations or complaints relative to its peers. More recorded distress than 94% 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 297.7. In ZIP 11221, 43% of residential buildings hold an A and 17% 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 | 36 total — 13 class C (immediately hazardous), 22 class B, 1 class A. Oldest open since 2013-03-07. |
status snapshot refreshed weekly from HPD records
55 heat or hot-water complaints in the last three years (winter 2023–24: 13 · winter 2024–25: 14 · winter 2025–26: 6). Repeated winter clusters suggest a chronic heating problem.
No bedbug-infested units reported in the last three years of filings.
45 service requests in the last three years. Most common: HEAT/HOT WATER (26) · Graffiti (5) · SAFETY (3) · Noise (3) · APPLIANCE (2) · ELECTRIC (2).
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 (1905) |
| Yes | Six or more residential units (6) |
| 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) | JC REAL ESTATE DEVELOPMENT LP |
| Head officer | ELSIE ORTIZ |
| Managing agent | CONCORD MANAGEMENT OF NY LLC |
| Last registered | 2025-10-09 |
as filed by the owner in the building's HPD registration
| Tax year | City market value | Assessed value |
|---|---|---|
| 2025 | $1,038,000 | $467,100 |
| 2026 | $1,114,000 | $501,300 |
| 2027 | $1,337,000 | $601,650 |
The city's market estimate has risen 29% between tax years 2025 and 2027.
| Heating fuel | NO2FUEL |
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.
4 street-flooding or sewer-backup complaints at this address since 2010 (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 | Halsey St — L · 0.3 mi straight-line (about an 8-minute walk) · station accessibility: none Myrtle-Wyckoff Avs — L M · 0.4 mi straight-line (about a 9-minute walk) · station accessibility: full |
| Bus | Nearest boarding stop: Wilson Av / Cornelia St — B60 · 600 ft |
| Citi Bike | Knickerbocker Ave & Hancock St · 350 ft · station location as of 2026-09-23; live availability |
| School zones (2024–25 map) | Elementary: P.S. 106 Edward Everett Hale Middle: J.H.S. 291 Roland Hayes. 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.
708 Knickerbocker 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 |
45 311 service requests from this address in the last three years — 26 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 CONCORD MANAGEMENT OF NY LLC — 301 buildings, 7,382 units. Grades across the portfolio: A20 · B63 · C84 · D80 · F52. See the whole portfolio
showing 60 of 301 buildings
Most recent mortgage recorded against this lot: $2,643,427 on 2010-06-28 (lender: Department Of Housing Preservation And Development and The City Of New York), covering 7 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 |
|---|---|---|---|
| 2010-06-28 | SPRD $11,959,297 — from DEPARTMENT OF HOUSING PRESERVATION AND D; THE CITY OF NEW YORK to JC REAL ESTATE DEVELOPMENT L.P. | $11,959,297 | |
| 2010-06-28 | Mortgage $2,643,427 — from JC REAL ESTATE DEVELOPMENT L.P. to DEPARTMENT OF HOUSING PRESERVATION AND D; THE CITY OF NEW YORK | $2,643,427 | |
| 2010-06-28 | Deed $9,197,418 — from NEIGHBORHOOD PARTNERSHIP HDFC, INC. to JC REAL ESTATE DEVELOPMENT L.P. | $9,197,418 | |
| 2007-07-12 | Mortgage $7,630,397 — from NEIGHBORHOOD PARTNERSHIP HOUSING DEVELOP; JC REALTY DEVELOPMENT CORP. to ENTERPRISE COMMUNITY LOAN FUND, INC. | $7,630,397 | |
| 2007-07-12 | Mortgage $588,725 — from JC REALTY DEVELOPMENT CORP.; NEIGHBORHOOD PARTNERSHIP HOUSING DEVELOP to ENTERPRISE COMMUNITY LOAN FUND, INC. | $588,725 | |
| 2007-07-12 | AL&R $20,547,805 — from JC REALTY DEVELOPMENT CORP.; NEIGHBORHOOD PARTNERSHIP HOUSING DEVELOP to ENTERPRISE COMMUNITY LOAN FUND, INC. | $20,547,805 | |
| 2007-07-12 | Mortgage $11,509,609 — from JC REALTY DEVELOPMENT CORP.; NEIGHBORHOOD PARTNERSHIP HOUSING DEVELOP to ENTERPRISE COMMUNITY LOAN FUND, INC. | $11,509,609 | |
| 2007-07-12 | Mortgage $819,074 — from NEIGHBORHOOD PARTNERSHIP HOUSING DEVELOP; JC REALTY DEVELOPMENT CORP. to ENTERPRISE COMMUNITY LOAN FUND, INC. | $819,074 |
| Year | Enforcement | Housing & tenants | Ownership & money | Health & systems | Total |
|---|---|---|---|---|---|
| 2017 | 0 | 36 | 0 | 0 | 36 |
| 2018 | 0 | 15 | 0 | 2 | 17 |
| 2019 | 0 | 2 | 0 | 2 | 4 |
| 2020 | 0 | 5 | 0 | 2 | 7 |
| 2021 | 0 | 29 | 0 | 2 | 31 |
| 2022 | 0 | 43 | 0 | 4 | 47 |
| 2023 | 1 | 18 | 0 | 4 | 23 |
| 2024 | 0 | 41 | 1 | 4 | 46 |
| 2025 | 0 | 30 | 0 | 4 | 34 |
| 2026 | 1 | 55 | 0 | 3 | 59 |
Every one of the 466 recorded events, 1983–2026, is laid out year by year in the full report (print-ready).
Explore: ZIP 11221 · Landlord rankings · How grades work · The map · The Mice Map