Building report

525 West End Avenue · Manhattan · BBL 1012470029 · 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

108 heat or hot-water complaints in the last three years (winter 2023–24: 50 · winter 2024–25: 56 · winter 2025–26: 2). Repeated winter clusters suggest a chronic heating problem.

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

$2,500 in enforcement penalties imposed (ECB/OATH) in the last three years.

What 311 hears from this address

97 service requests in the last three years. Most common: HEAT/HOT WATER (54) · Noise (13) · UNSANITARY CONDITION (7) · Missed Collection (3) · Illegal Parking (3) · FLOORING/STAIRS (2).

Filed construction activity

$14,140,208 in permitted construction work filed since 2016 (26 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 2% between tax years 2025 and 2027.

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 2025 (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

525 West End Avenue Copy address

97 311 service requests from this address in the last three years — 54 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 SIREN MANAGEMENT CORP — 30 buildings, 1,145 units. Grades across the portfolio: A26 · B4. See the whole portfolio

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $2,360,491 on 2022-03-04 (lender: Apple Bank For Savings). 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	7	3	31	0	9	50
2018	5	3	18	0	7	33
2019	10	5	57	0	17	89
2020	2	0	62	1	3	68
2021	3	1	32	0	5	41
2022	3	3	39	4	5	54
2023	5	2	78	0	2	87
2024	12	3	109	0	6	130
2025	0	0	36	0	4	40
2026	0	0	24	0	2	26

The last 12 months — 31 records

The full timeline

Support this site Back to the building page