Building report

551 10 Avenue · Manhattan · BBL 1010697501 · generated 2026-10-20 · FREE Print / save PDF

Free while in beta — every NYC building gets a report like this, updated weekly from city records. If it's useful, chip in to keep it free

Where the penalty points come from

Open with the city right now

status snapshot refreshed weekly from HPD records

Patterns

3 heat or hot-water complaints in the last three years (winter 2024–25: 2 · winter 2025–26: 1). 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

274 service requests in the last three years. Most common: Noise (132) · Encampment (26) · Illegal Parking (11) · FLOORING/STAIRS (10) · For Hire Vehicle Complaint (7) · UNSANITARY CONDITION (6).

Filed construction activity

$21,679,513 in permitted construction work filed since 2016 (43 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. 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 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 8% between tax years 2025 and 2027.

Tax exemptions on the roll: 421A 35 YR · SCHOOL-ELEM,HS,ACAD

For property tax, the Department of Finance values this condo as if it were a rental building. Its 2023 estimate: gross income $33,534,643 a year ($54.17 per sq ft), operating expenses $7,379,231 ($11.92 per sq ft), net operating income $26,155,412. These are the city's estimates from comparable rentals, not the building's actual budget, rents or maintenance charges.

Building systems

Flood exposure

Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).

Hurricane evacuation zone 4 of 6 — zone 1 evacuates first.

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.

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

551 10 Avenue Copy address

274 311 service requests from this address in the last three years — 1 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 EXTELL MANAGEMENT SERVICES — 21 buildings, 3,026 units. Grades across the portfolio: A14 · B4 · C1. See the whole portfolio

Sales, deeds & mortgages

Ten-year activity

Show as table

Year	Construction	Enforcement	Housing & tenants	Ownership & money	Health & systems	Total
2017	58	52	48	3	23	184
2018	21	12	20	13	10	76
2019	24	13	54	0	12	103
2020	8	7	33	49	8	105
2021	1	5	36	0	7	49
2022	4	13	121	1	13	152
2023	5	21	69	0	9	104
2024	6	5	109	2	9	131
2025	25	7	107	0	10	149
2026	3	10	134	0	11	158

The last 12 months — 177 records

showing the 80 most recent

The full timeline

Support this site Back to the building page