The city's published records show little recorded distress here in the last three years. Less recorded distress than 62% 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 10. In ZIP 11217, 60% of residential buildings hold an A and
6% 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 violations
5 total — 0 class C (immediately hazardous), 0 class B, 5 class A. Oldest open since 2026-06-06.
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
3 service requests in the last three years. Most common: Dead Animal (1) · Noise (1) · Curb Condition (1).
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
Yes
Built before 1974 (1920)
Yes
Six or more residential units (6)
No
421-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)
21 STERLING PL LLC
Head officer
NICHOLAS G KOTSONIS
Managing agent
KOTSONIS ORGANIZATION LLC.
Last registered
2025-10-11
as filed by the owner in the building's HPD registration
What the city thinks it's worth
Tax year
City market value
Assessed value
2025
$2,749,200
$1,237,140
2026
$3,299,000
$1,484,550
2027
$3,139,000
$1,412,550
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).
Not in a hurricane evacuation zone.
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
Subway
Bergen St — 2 3 · 950 ft straight-line (about a 5-minute walk) · station accessibility: none 7 Av — B Q · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none
Bus
Nearest boarding stop: 5 Av / Saint Johns Pl — B63 · 300 ft
Citi Bike
Sterling Pl & 5 Ave · 200 ft · station location as of 2026-09-23; live availability
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.
3 311 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.
Most recent mortgage recorded against this lot: $227,092 on
2022-11-15 (lender: Alma Bank). Face amount at recording — it may have since been paid
down, refinanced or satisfied. View the recorded
document.
Date
Record
Amount
Per res. unit
2022-11-15
Agreement $2,050,000 — from 21 STERLING PLACE LLC to ALMA BANK
$2,050,000
2022-11-15
Mortgage $227,093 — from 21 STERLING PLACE LLC to ALMA BANK
$227,093
2018-06-22
Agreement $6,900,000 — from 21 STERLING PLACE LLC; 695 UNION STREET, LLC; 248 5TH AVENUE REALTY CORP. to DIME COMMUNITY BANK
$6,900,000
2018-04-27
Agreement $2,000,000 — from 21 STERLING PLACE LLC to DIME COMMUNITY BANK
$2,000,000
2018-04-27
Mortgage $625,491 — from 21 STERLING PLACE LLC to DIME COMMUNITY BANK
$625,491
2018-04-27
Mortgage $1,374,509 — from 21 STERLING PLACE LLC to DIME COMMUNITY BANK
$1,374,509
2018-04-27
AL&R $2,000,000 — from 21 STERLING PLACE LLC to DIME COMMUNITY BANK
$2,000,000
2013-08-29
AL&R $6,900,000 — from 21 STERLING PLACE LLC; 695 UNION STREET, LLC; 248 5TH AVENUE REALTY CORP. to INVESTORS BANK
$6,900,000
2013-08-29
Agreement $6,900,000 — from 248 5TH AVENUE REALTY CORP.; 695 UNION STREET, LLC; 21 STERLING PLACE LLC to INVESTORS BANK
$6,900,000
2013-08-29
Mortgage $3,317,826 — from 21 STERLING PLACE LLC; 248 5TH AVENUE REALTY CORP.; 695 UNION STREET, LLC to INVESTORS BANK
$3,317,826
2007-09-24
Mortgage $655,000 — from 21 STERLING PLACE LLC to WASHINGTON MUTUAL BANK
$655,000
2007-09-24
Deed $1,100,000 — from ALFEROFF, REYNALDO; ALFEROFF, YOLANDA to 21 STERLING PLACE LLC
$1,100,000
Ten-year activity
20100
2017
14
2018
2019
2020
2021
2022
2023
2024
2025
2026
Housing & tenantsOwnership & moneyHealth & systems
Show as table
Year
Housing & tenants
Ownership & money
Health & systems
Total
2017
2
0
0
2
2018
4
7
3
14
2019
1
0
1
2
2020
3
0
1
4
2021
6
0
1
7
2022
3
4
1
8
2023
2
0
1
3
2024
3
0
1
4
2025
3
0
1
4
2026
6
0
1
7
This record is free. Keeping it free costs money. Servers, data pipelines, weekends. Pay what you want — a dollar helps.
HPD class A: §27-2045(B)(5) HMC, § 12-01 RCNY POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE
2026-06-06
HPD class A: §27-2045(B)(5) HMC, § 12-06, 12-10 RCNY POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY COMMISS
2026-06-06
HPD class A: § 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES
2026-06-06
HPD class A: § 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME AT OR NEAR MAILBOXES, BOTTOM
2026-06-06
HPD class A: §27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WIT
2026-04-21
Bedbug filing: 0 infested units
2026-01-19
Boiler inspection
The full timeline
2026
2026-06-06HPD class A: §27-2045(B)(5) HMC, § 12-01 RCNY POST A PROPER NOTICE OF SMOKE DETECTOR REQUIREMENTS, IN A FORM APPROVED BY THE COMMISSIONER, AT OR NEAR THE
2026-06-06HPD class A: §27-2045(B)(5) HMC, § 12-06, 12-10 RCNY POST A PROPER NOTICE OF CARBON MONOXIDE DETECTING DEVICE REQUIREMENTS, IN A FORM APPROVED BY COMMISS
2026-06-06HPD class A: § 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES
2026-06-06HPD class A: § 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME AT OR NEAR MAILBOXES, BOTTOM
2026-06-06HPD class A: §27-2104(B) HMC POST A PROPER NOTICE REGARDING RENT STABILIZATION LAW, IN A FORM APPROVED BY THE COMMISSIONER, IN A CONSPICUOUS LOCATION WIT
2026-04-21Bedbug filing: 0 infested units
2026-01-19Boiler inspection
2025
2025-10-10311: Curb Condition — Broken Curb
2025-06-25Bedbug filing: 0 infested units
2025-06-11HPD class A: (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD
2022-11-15Agreement $2,050,000 — from 21 STERLING PLACE LLC to ALMA BANK$2,050,000
2022-11-15Mortgage assigned — from DIME COMMUNITY BANK to ALMA BANK
2022-11-15TL&R — from DIME COMMUNITY BANK to 21 STERLING PLACE LLC
2022-11-15Mortgage $227,093 — from 21 STERLING PLACE LLC to ALMA BANK$227,093
2022-09-17311: Sidewalk Condition — Blocked - Construction
2022-05-13Bedbug filing: 0 infested units
2022-03-02HPD class A: (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD
2022-01-12Boiler inspection
2021
2021-10-11311: Noise - Residential — Loud Talking
2021-08-09311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2021-08-04311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2021-04-26Bedbug filing: 0 infested units
2021-04-13HPD class A: (A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPD
2021-03-08Boiler inspection
2021-03-06311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020
2020-09-28311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-09-17311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-09-11311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-01-27Boiler inspection
2019
2019-05-17311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2019-05-03Boiler inspection
2018
2018-06-22Agreement $6,900,000 — from 21 STERLING PLACE LLC; 695 UNION STREET, LLC; 248 5TH AVENUE REALTY CORP. to DIME COMMUNITY BANK$6,900,000
2018-06-22Mortgage assigned — from INVESTORS BANK to DIME COMMUNITY BANK
2018-06-22TL&R — from INVESTORS BANK to 248 5TH AVENUE REALTY CORP.; 695 UNION STREET, LLC; 21 STERLING PLACE LLC
2018-06-18311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2013-12-26311: Noise — Noise: Construction Before/After Hours (NM1)
2013-12-02311: Noise — Noise: Construction Before/After Hours (NM1)
2013-12-02311: Water System — Dirty Water (WE)
2013-11-14Permit EW — ISSUED
2013-08-29AL&R $6,900,000 — from 21 STERLING PLACE LLC; 695 UNION STREET, LLC; 248 5TH AVENUE REALTY CORP. to INVESTORS BANK$6,900,000
2013-08-29Agreement $6,900,000 — from 248 5TH AVENUE REALTY CORP.; 695 UNION STREET, LLC; 21 STERLING PLACE LLC to INVESTORS BANK$6,900,000
2013-08-29Mortgage $3,317,826 — from 21 STERLING PLACE LLC; 248 5TH AVENUE REALTY CORP.; 695 UNION STREET, LLC to INVESTORS BANK$3,317,826
2013-08-29Mortgage assigned — from JPMORGAN CHASE BANK, NATIONAL ASSOCIATIO to INVESTORS BANK
2013-08-29Mortgage assigned — from FEDERAL DEPOSIT INSURANCE CORPORATION to JPMORGAN CHASE BANK, NATIONAL ASSOCIATIO
2013-06-05Permit EW — ISSUED
2013-06-05Permit PL — ISSUED
2013-06-05Permit EW — ISSUED
2013-05-21Job filed: RENOVATE EXISTING APARTMENT ON FIRST FLOOR.RELOCATE KITCHEN AND PROVIDE SECOND BATHROOM. NO CHANGE IN USE, OCCUPANCY OR MEANS OF EGRESS.$136,500
2011
2011-12-31311: ELECTRIC — ELECTRIC-WIRING
2011-12-31Tenant complaint: ELECTRIC — WIRING
2011-06-15Permit PL — ISSUED
2011-06-15Permit EW — ISSUED
2011-06-15Permit EW — ISSUED
2011-06-03Job filed: RENOVATE EXISTING APARTMENT ON SECOND FLOOR.RELOCATE KITCHEN AND PROVIDE SECOND BATHROOM. NO CHANGE IN USE, OCCUPANCY OR MEANS OF EGRESS.$47,788
2010
2010-03-20HPD class A: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR AT EAST WALL IN THE 3rd ROOM FROM NORTH LO
2009-02-05Tenant complaint: HEATING — HEAT RELATED
2008
2008-05-23DOB complaint, category ?
2008-05-21ECB Non-Hazardous violation: INSTALLED EQUIPMENT DOESN'T MATCH TO DOB PLANS/DRAWINGS.THERE MISSING 3 POINT CONNECTION ON "C" HOOKS.REMEDY:CONFORM TO DOB CODE S$500
2007
2007-09-24Mortgage $655,000 — from 21 STERLING PLACE LLC to WASHINGTON MUTUAL BANK$655,000
2007-09-24Deed $1,100,000 — from ALFEROFF, REYNALDO; ALFEROFF, YOLANDA to 21 STERLING PLACE LLC$1,100,000
2006
2006-03-18Tenant complaint: HEATING — HEAT RELATED
2006-02-26Tenant complaint: HEATING — HEAT RELATED
2005
2005-10-24Tenant complaint: HEATING — HEAT RELATED
2004
2004-12-16Tenant complaint: HEATING — HEAT RELATED
2004-05-10Tenant complaint: GENERAL — DOORS
2004-05-10Tenant complaint: GENERAL — LOCKS
2004-05-10Tenant complaint: GENERAL — LOCKS
2003
2003-06-24HPD class B: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING IN THE KITCHEN LOCATED AT APT 1, 1
2003-06-24HPD class B: § 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 1, 1st STORY
1987-07-01HPD class B: D26-19.05 ADM CODE PROVIDE ADEQUATE LIGHT OF NOT LESS THAN 60 WATTS INCANDESCENT OR EQUIVALENT ILLUMINATION VESTIBULE 1 STY NIGHT INSPECTION
1987-07-01HPD class B: D26-19.07 ADM CODE PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNS
1985
1985-12-03Mortgage satisfied — from ALFEROFF, REYNALDO; ALFEROFF, YOLANDA to CELLA, TERESA MARIE; CELLA, ALBERT JOHN
1970
1970-10-19Deed — from CELLA ALBERT J; CELLA THERESE M to ALFEROFF REYNALDO; ALFEROFF YOLANDA
1970-10-19Mortgage — from ALFEROFF YOLANDA; ALFEROFF REYNALDO to CELLA THERESE M; CELLA ALBERT J