Building Biography

The MapLandlordsNeighborhoodsZIP CodesGradesThe Mice MapAboutWhat's new

23 Washington Square N

196Records
14City systems
12Open violations
27.1Penalty rate
Manhattan · ZIP 10011 · Neighborhood: Greenwich Village
Open in the map

196 recorded events, 1969–2026, from 14 city data systems. The city's paper trail here is mostly 64 311 service requests, 34 rodent inspections, 31 HPD complaints.

BoroughManhattan 10011
Built1836
Floors3.5
Res. units7
ClassC1
Owner (PLUTO)HARRAN HOLDING CORP
BBL1005510012
BIN1008852

Full record, year by year   Support this site

GRADE B

A modest record — below the level that usually signals systemic problems. More recorded distress than 61% of 6-24-unit residential buildings citywide. The citywide median for 6-24-unit residential buildings is 16.3 penalty points per 10 units; this building carries 27.1. In ZIP 10011, 68% of residential buildings hold an A and 5% grade D or F. How grades work

this building
A
B
C

Among 46,798 6-24-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

Open HPD violations12 total — 0 class C (immediately hazardous), 7 class B, 5 class A. Oldest open since 2015-01-20.

status snapshot refreshed weekly from HPD records

Patterns

No heat or hot-water complaints in the last three years.

No bedbug-infested units reported in the last three years of filings.

What 311 hears from this address

10 service requests in the last three years. Most common: Encampment (6) · Noise (2) · Illegal Parking (1) · Homeless Person Assistance (1).

Filed construction activity

$10,000 in permitted construction work filed since 2016 (2 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

YesBuilt before 1974 (1836)
YesSix or more residential units (7)
No421-a / J-51 tax benefit on the current tax roll

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

Registered owner(s)HARRAN HOLDING CORP
Head officerMAGDALENA KOSZ
Managing agentA.J. CLARKE REAL ESTATE CORP
Last registered2026-07-27

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$10,346,000 $4,655,700
2026$8,277,000 $3,724,650
2027$8,023,000 $3,610,350

The city's market estimate has fallen 22% between tax years 2025 and 2027.

Building systems

Heating fuelNATURALGAS

Flood exposure

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

Hurricane evacuation zone 5 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

SubwayW 4 St-Wash Sq — A B C D E F M · 600 ft straight-line (about a 3-minute walk) · station accessibility: full
Christopher St-Stonewall — 1 · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none
BusNearest boarding stop: W 8 St / 5 Av — M8 · 350 ft
Citi BikeMacDougal St & Washington Sq · 150 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 041 Greenwich Village
Middle: M.S. 297. Confirm with the DOE's school search.

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

23 Washington Square N

Heat or hot waterHeat or hot water
Apartment maintenanceApartment maintenance
Bed bugsBed bugs
Residential pestsResidential pests
Rats or miceRats or mice
Anything elseAnything else

10 311 service requests from this address in the last three years.

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 A.J. CLARKE REAL ESTATE CORP — 186 buildings, 3,651 units. Grades across the portfolio: A116 · B45 · C15 · D4. See the whole portfolio

BuildingBoroughUnitsGrade
310 West 72 Street MN120 A
37 West 72 Street MN92 A
57 West 58 Street MN88 A
620 Ft Washington Avenue MN82 A
464 Hudson Street MN79 A
1429 Lexington Avenue MN74 A
260 Riverside Drive MN66 A
415 West 24 Street MN65 A
255 West 75 Street MN62 A
4791 Broadway MN62 A
401 West End Avenue MN61 A
227 East 25 Street MN60 A
309 West 109 Street MN60 A
448 West 58 Street MN53 A
203 East 27 Street MN52 A
302 East 38 Street MN50 A
42 West 72 Street MN50 A
610 West 143 Street MN49 B
315 East 108 Street MN48 A
502 Hudson Street MN47 A
166 East 92 Street MN41 A
105 East 10 Street MN41 A
332 East 95 Street MN41 A
412 West End Avenue MN40 A
201 Columbus Avenue MN40 B
152 West 58 Street MN38 A
321 East 108 Street MN36 A
104 Sullivan Street MN35 B
202 West 82 Street MN30 C
64 Thompson Street MN30 A
169 East 101 Street MN30 A
28 West 83 Street MN30 A
173 East 101 Street MN30 A
175 East 101 Street MN30 A
171 East 101 Street MN30 A
141 East 13 Street MN26 A
1701 1 Avenue MN26 B
58 West 72 Street MN25 A
45 Spring Street MN25 A
822 Greenwich Street MN24 A
30 St Marks Place MN24 A
320 East 81 Street MN24 A
339 East 9 Street MN23 B
34 St Marks Place MN22 A
235 East 25 Street MN22 A
227 East 111 Street MN22 A
5 East 67 Street MN22 A
107 Thompson Street MN22 B
506 Amsterdam Avenue MN22 B
406 East 9 Street MN22 A
243 West 15 Street MN22 A
223 East 10 Street MN21 A
133 East 30 Street MN21 A
241 West 15 Street MN21 B
312 West 89 Street MN20 A
32 St Marks Place MN20 A
144 West 10 Street MN20 B
162 East 88 Street MN20 B
214 West 82 Street MN20 B
245 East 94 Street MN20 A

showing 60 of 186 buildings

Ten-year activity

100500
2017
2018
2019
2020
51
2021
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
20170360312
2018010034
2019002046
2020001012
202141441151
2022006028
20230080210
20240040711
202500801422
2026010023
This record is free. Keeping it free costs money.
Servers, data pipelines, weekends. Pay what you want — a dollar helps.
Chip in

The full timeline

Construction 14Enforcement 11Housing & tenants 118Ownership & money 8Health & systems 45

Every one of the 196 recorded events, 1969–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 10011 · Landlord rankings · How grades work · The map · The Mice Map