Building report

644 Riverside Drive · Manhattan · BBL 1020880114 · generated 2026-10-20 · FREE Print / save PDF

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Where the penalty points come from

Open with the city right now

status snapshot refreshed weekly from HPD records

Patterns

349 heat or hot-water complaints in the last three years (winter 2023–24: 144 · winter 2024–25: 104 · winter 2025–26: 96). Repeated winter clusters suggest a chronic heating problem.

3 bedbug-infested unit(s) reported in filings over the last three years.

$1,875 in enforcement penalties imposed (ECB/OATH) in the last three years.

What 311 hears from this address

328 service requests in the last three years. Most common: HEAT/HOT WATER (174) · UNSANITARY CONDITION (38) · GENERAL (28) · PLUMBING (15) · ELECTRIC (11) · PAINT/PLASTER (9).

Filed construction activity

$1,653,598 in permitted construction work filed since 2016 (12 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.

Rent-stabilization signals

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 with HPD — the names behind the building

as filed by the owner in the building's HPD registration

What the city thinks it's worth

The city's market estimate has risen 0% between tax years 2025 and 2027.

Tax exemptions on the roll: ARTICLE XI

Building systems

Flood exposure

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 2024 (1 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.

Getting around

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.

Report a problem to 311

644 Riverside Drive Copy address

328 311 service requests from this address in the last three years — 174 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.

The landlord's report card

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

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $16,522,618 on 2025-03-12 (lender: Cpc Funding Spe 1 LLC). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

Ten-year activity

Show as table

Year	Construction	Enforcement	Housing & tenants	Ownership & money	Health & systems	Total
2017	3	2	537	2	2	546
2018	13	7	465	0	6	491
2019	8	8	267	0	3	286
2020	6	3	183	0	3	195
2021	5	9	341	0	6	361
2022	4	7	501	0	1	513
2023	3	9	313	0	4	329
2024	9	3	380	0	16	408
2025	13	4	230	33	4	284
2026	14	2	66	0	2	84

The last 12 months — 138 records

showing the 80 most recent

The full timeline

showing the 2,000 most recent of 9,341 events

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