Is 18-26 Madison St rent stabilized?
18-26 Madison St is a registered NYC rent-stabilized building in Ridgewood, Queens (11385). It has about 6 apartments, built in 1913.
Also written as 18-26 Madison Street — or 18-26 Madison St, Queens, NY 11385.
How this building compares
With about 6 apartments it sits near the middle of the 1,081 rent-stabilized buildings this site tracks in Ridgewood, where the median building has 6. It went up in 1913, 17 years before the 1930 median for stabilized buildings tracked in the neighborhood. HPD lists 25 open violations here, about 4.2 per apartment — above the one for every 3 apartments median for tracked buildings in the neighborhood. Of the 37 violations on record at the address, 12 are class C — HPD's immediately hazardous grade. Tenants have filed 52 HPD complaints at the address, none of them in the last twelve months.
Building details
| Borough | Queens |
| Neighborhood | Ridgewood |
| ZIP | 11385 |
| Year built | 1913 |
| Apartments | 6 |
| Rent-stabilized | Yes — DHCR registered |
| Stabilization code | MULTIPLE DWELLING A |
| BBL | 4034620027 |
Owner & management
| Owner | PATRICK KARWOWSKI 100 NASSAU AVENUE · BROOKLYN, NY 11222 |
| Managing agent | DOROTHY KARWOWSKI |
Building conditions
| HPD violations | 25 open / 37 total · 12 in last 12 mo |
| HPD complaints | 0 open / 52 total |
| HPD registration last filed | September 23, 2025 |
Full building report — $9
Frequently asked questions
Is 18-26 Madison St rent stabilized?
18-26 Madison St in Ridgewood, Queens is registered as rent stabilized in the New York State DHCR 2024 rent-stabilized building files. Registration is recorded for the building, not for each apartment in it, so an individual unit here can still have been deregulated — ask the landlord or DHCR for that apartment's rent history before relying on it.
How many apartments are at 18-26 Madison St?
18-26 Madison St (BBL 4034620027) has about 6 residential apartments and was built in 1913, from NYC PLUTO. PLUTO counts the building's units; it does not say how many of them are rent stabilized, and the DHCR files this site is built on register the building rather than its individual apartments.