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20-78 31 Street

441Records
16City systems
1Open violations
7.5Penalty rate

441 recorded events, 1900–2026, from 16 city data systems. The city's paper trail here is mostly 139 HPD complaints, 101 311 service requests, 49 ACRIS deeds & mortgages.

BoroughQueens 11105
Built1926
Floors4
Res. units42
ClassC7
Owner (PLUTO)DOROTHEA 21ST CO LLC
BBL4008480069
BIN4017846, 4449469, 4619507

Full record, year by year   Support this site

GRADE A

The city's published records show little recorded distress here in the last three years. Less recorded distress than 69% of 25-99-unit residential buildings citywide. The citywide median for 25-99-unit residential buildings is 23.6 penalty points per 10 units; this building carries 7.5. In ZIP 11105, 80% of residential buildings hold an A and 3% grade D or F. How grades work

this building
A
B
C

Among 17,252 25-99-unit residential buildings citywide · left is less recorded distress, right is more

Open with the city right now

Open HPD violations1 total — 0 class C (immediately hazardous), 1 class B, 0 class A. Oldest open since 2019-04-01.
Active vacate order1 unit(s) under an unrescinded HPD vacate order

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

20 service requests in the last three years. Most common: Illegal Parking (7) · Noise (6) · Consumer Complaint (2) · Dirty Condition (1) · UNSANITARY CONDITION (1) · Illegal Tree Damage (1).

Filed construction activity

$302,500 in permitted construction work filed since 2016 (7 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 (1926)
YesSix or more residential units (42)
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)DOROTHEA 21ST CO LLC
Head officerNICHOLAS G Petras
Managing agentSTONE PROPERTIES GROUP LLC
Last registered2025-07-09

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$4,892,000 $2,201,400
2026$4,978,000 $2,240,100
2027$4,956,000 $2,230,200

The city's market estimate has risen 1% between tax years 2025 and 2027.

Building systems

Energy grade (LL33)D — ENERGY STAR score 1/100, posted at the entrance by law (2022 disclosure cycle)
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

SubwayAstoria-Ditmars Blvd — N W · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none
BusNearest boarding stop: 20 Av / 31 St — Q100 · 800 ft
Citi Bike31 St & 21 Ave · 100 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 122 Mamie Fay
Middle: I.S. 141 The Steinway. 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

20-78 31 Street

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

20 311 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 STONE PROPERTIES GROUP LLC — 17 buildings, 442 units. Grades across the portfolio: A17. See the whole portfolio

BuildingBoroughUnitsGrade
80-08 35 Avenue QN90 A
28-28 35 Street QN72 A
31-21 29 Street QN54 A
31-77 32 Street QN48 A
35-03 29 Street QN48 A
20-78 31 Street QN42 A
209-01 42 Avenue QN14 A
2001 Bath Avenue BK12 A
215-04 43 Avenue QN12 A
100 West 71 Street MN10 A
22 West 71 Street MN10 A
30-32 32 Street QN8 A
214-16 42 Avenue QN6 A
46-04 245 Street QN6 A
42-01 Bell Boulevard QN5 A
22-80 31 Street QN4 A
28-20 Bell Boulevard QN1 A

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $1,211,949 on 2023-07-13 (lender: Apple Bank For Savings). Face amount at recording — it may have since been paid down, refinanced or satisfied. View the recorded document.

DateRecordAmountPer res. unit
2023-07-26Agreement $3,100,000 — from DOROTHEA 21ST CO, LLC to APPLE BANK FOR SAVINGS $3,100,000
2023-07-13Agreement $3,100,000 — from DOROTHEA 21ST CO, LLC to APPLE BANK FOR SAVINGS $3,100,000
2023-07-13Mortgage $1,211,949 — from DOROTHEA 21ST CO, LLC to APPLE BANK FOR SAVINGS $1,211,949
2018-10-11Agreement $2,180,149 — from DOROTHEA 21ST CO, LLC to THE DIME SAVINGS BANK OF WILLIAMSBURGH; DIME COMMUNITY BANK $2,180,149
2011-08-09Mortgage $1,068,364 — from DOROTHEA 21ST CO, LLC to THE DIME SAVINGS BANK OF WILLIAMSBURGH $1,068,364
2011-08-09AL&R $2,500,000 — from DOROTHEA 21ST CO, LLC to THE DIME SAVINGS BANK OF WILLIAMSBURGH $2,500,000
2005-07-29AL&R $1,600,000 — from INDEPENDENCE COMMUNITY BANK to DOROTHEA 21ST CO.LLC $1,600,000
2005-07-29Agreement $1,600,000 — from INDEPENDENCE COMMUNITY BANK to DOROTHEA 21ST CO.LLC $1,600,000
2005-07-29Mortgage $1,210,324 — from DOROTHEA 21ST CO. LLC to INDEPENDENCE COMMUNITY BANK $1,210,324
1995-02-15Mortgage $328,980 — from PETRAS, DOROTHEA A to INDEPENDENCE SAVINGSBANK $328,980
1986-11-14Mortgage $308,363 — from PETRAS, DOROTHEA A. to ASTORIA FED S&L ASSN $308,363

Ten-year activity

50250
2017
2018
2019
2020
2021
32
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
20176040414
201861201230
20196060214
202001130216
20210270211
2022012101032
20230135312
2024005038
20250260412
202600110213
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The full timeline

Construction 56Enforcement 35Housing & tenants 266Ownership & money 49Health & systems 35

Every one of the 441 recorded events, 1900–2026, is laid out year by year in the full report (print-ready).

Explore: ZIP 11105 · Landlord rankings · How grades work · The map · The Mice Map