Building Biography

The MapLandlordsNeighborhoodsZIP CodesGradesThe Mice MapAboutWhat's new

Building report

373 Union Avenue · Staten Island · BBL 5012230020 · generated 2026-10-20 · FREE

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

ComponentWhat it coversPoints
Housing codeHPD violations by class, complaints, emergency repairs, litigation, vacate orders, AEP3
Structural & safetyDOB violations, ECB/OATH violations by class0
PestsBedbug filings, failed rodent inspections, rodent 311s0
DisplacementMarshal evictions executed0
GRADE B

A modest record — below the level that usually signals systemic problems. More recorded distress than 82% of 1-5-unit residential buildings citywide. The citywide median for 1-5-unit residential buildings is 0 penalty points per 10 units; this building carries 10. In ZIP 10303, 87% of residential buildings hold an A and 4% grade D or F. How grades work

this building
A
C

Among 699,345 1-5-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

No current HPD flags in the latest weekly snapshot: no open violations, no pending litigation, no active vacate orders, and not in the Alternative Enforcement Program.

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

No 311 service requests from this address in the last three years.

Filed construction activity

No permitted work with a declared cost filed in the last decade. Permit costs cover filed construction work only — they do not capture routine maintenance or repairs done without a permit.

Rent-stabilization signals

NoBuilt before 1974 (2008)
NoSix or more residential units (2)
No421-a / J-51 tax benefit on the current tax roll

0 of 3 signals present. None of the common signals are present — stabilization is unlikely (though never impossible). 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)BLOCK 1223 LLC
Head officerTHOMAS GENNARELLI
Managing agentSI NORTHSHOER ENTERPRISES LLC
Last registered2025-11-01

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$755,000 $45,300
2026$819,000 $49,140
2027$860,000 $51,600

The city's market estimate has risen 14% between tax years 2025 and 2027.

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

BusNearest boarding stop: Forest Av / Union Av — S48 S98 SIM30 · 400 ft
School zones (2024–25 map)Elementary: P.S. 044 Thomas C. Brown
Middle: I.S. 051 Edwin Markham. 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

373 Union Avenue

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

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 SI NORTHSHOER ENTERPRISES LLC — 8 buildings, 16 units. Grades across the portfolio: B7 · C1. See the whole portfolio

BuildingBoroughUnitsGrade
188 Netherland Avenue SI2 B
373 Union Avenue SI2 B
182 Dixon Avenue SI2 B
192 Netherland Avenue SI2 B
311 Van Pelt Avenue SI2 B
313 Van Pelt Avenue SI2 C
371 Union Avenue SI2 B
184 Netherland Avenue SI2 B

Sales, deeds & mortgages

DateRecordAmountPer res. unit
2007-12-13RPTT $400,000 — from MARSHALL, JOHN H; MARSHALL, CHERYL J to BLOCK 1223, LLC $400,000

Ten-year activity

530
2017
2018
3
2019
2020
2021
2022
2023
2024
2025
2026
Housing & tenantsHealth & systems
Show as table
YearHousing & tenantsHealth & systemsTotal
2017112
2018202
2019213
2020000
2021000
2022101
2023101
2024000
2025000
2026000
This record is free. Keeping it free costs money.
Servers, data pipelines, weekends. Pay what you want — a dollar helps.
Chip in

The last 12 months — 0 records

No city records in the last 12 months — quiet is good.

The full timeline

2023
2023-11-30HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2022
2022-11-21HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2019
2019-12-17Rodent inspection: Passed
2019-11-07HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2019-03-12311: Electronics Waste Appointment — Ewaste appointment
2018
2018-10-30HPD class I: §27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE
2018-08-08311: Electronics Waste Appointment — Ewaste appointment
2017
2017-10-12311: Electronics Waste — Recycling Electronics
2017-03-27Rodent inspection: Passed
2015
2015-07-25311: Noise - Residential — Loud Music/Party
2008
2008-03-28Permit PL — ISSUED
2008-03-14Permit NB — ISSUED
2008-01-31Permit DM — ISSUED
2008-01-31Permit EQ — ISSUED
2008-01-31Permit DM — ISSUED
2008-01-09Job filed: DM
2008-01-09Job filed: DM
2007
2007-12-13RPTT $400,000 — from MARSHALL, JOHN H; MARSHALL, CHERYL J to BLOCK 1223, LLC$400,000
2007-11-07Job filed: NB
2007-08-08Job filed: SI
2007-06-06Job filed: BPP (125LF). THIS APPLICATIONALSO APPLIES TO: 375, 377,379 UNION AVE, BLOCK 1223,LOTS 16, 17, 18.

Support this site Back to the building page