523 Willoughby Avenue
What apartments at 523 Willoughby Avenue ask
Median asking rent by size across 12 listings seen between May 2026 and August 2026. From public rental listings Leaseswap tracks on StreetEasy, NYBits, LeaseBreak and others. Asking rents, not signed leases.
- 1 bedroom$3,000
- 2 bedrooms$3,250
Rent-stabilized units on record
Unit counts from NYC tax records, via JustFix's Who Owns What.
Latest
3
In 2007
0
UnitsResidential units
8
This means the building has rent-stabilized units, not that every apartment in it is stabilized or carries a legal rent. Always check a unit's status and rent history with DHCR before signing a lease.
No HPD violations in the last 12 months
Housing code violations issued by NYC HPD, by class. Data as of August 13, 2026.
Class C
0
Immediately hazardous
Class B
0
Hazardous
Class A
0
Non-hazardous
Who owns the building
From NYC HPD registration records, via JustFix's Who Owns What. Company names only.
- Owner
- Guardeum Management LLC
- Portfolio
- 20 buildings · 170 units
- Last sale
- July 24, 2014
What listings here mention
Building features that most listings at this address report.
- Elevator
- Doorman
- Laundry in building
- Roof access
- Shared outdoor space
- Bike storage
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Common questions
- Is 523 Willoughby Avenue rent-stabilized?
- NYC tax records list 3 rent-stabilized units at 523 Willoughby Avenue. That means the building has rent-stabilized units, not that every apartment in it is stabilized. Confirm a specific unit's status and rent history with DHCR before signing a lease.
- How much is rent at 523 Willoughby Avenue?
- Across 12 public rental listings Leaseswap tracks on StreetEasy, NYBits, LeaseBreak and others between May 2026 and August 2026, median asking rents were $3,000 for a one-bedroom, $3,250 for a two-bedroom. These are asking rents from listings, not signed leases.
- Who owns 523 Willoughby Avenue?
- NYC HPD registration records link 523 Willoughby Avenue to Guardeum Management LLC, which is associated with 20 buildings and 170 units in NYC. Ownership data comes from JustFix's Who Owns What.
- How many HPD violations does 523 Willoughby Avenue have?
- HPD issued 0 violations at 523 Willoughby Avenue in the last 12 months, and 0 are currently open. Data as of August 13, 2026.