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 10011, 68% of residential buildings hold an A and
5% 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
2 service requests in the last three years. Most common: Abandoned Vehicle (1) · Panhandling (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 (1853)
No
Six or more residential units (5)
No
421-a / J-51 tax benefit on the current tax roll
1 of 3 signals present. Only a partial profile — stabilization is possible but less likely. 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)
CHELSEA SQUARE NORTH, INC.
Head officer
RALPH WESTERHOFF
Managing agent
BRICKWORK MANAGEMENT INC.
Last registered
2025-09-09
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
$3,373,000
$1,517,850
2026
$2,704,000
$1,216,800
2027
$2,570,000
$1,156,500
The city's market estimate has fallen
24% between tax years 2025 and 2027.
Tax exemptions on the roll: COLD WAR VETERAN - DISABILITY
Flood exposure
Not in the FEMA 1%-annual-chance floodplain (2015 preliminary maps).
Hurricane evacuation zone 2 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
Subway
23 St — C E · 0.2 mi straight-line (about a 5-minute walk) · station accessibility: none 14 St — A C E L · 0.3 mi straight-line (about an 8-minute walk) · station accessibility: full
Bus
Nearest boarding stop: 9 Av / W 23 St — M11 · 400 ft
Citi Bike
9 Ave & W 22 St · 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.
2 311 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: $310,000 on
2007-06-15 (lender: National Consumer Cooperative Bank and Ncb), covering 2 lots — the amount covers all of them. Face amount at recording — it may have since been paid
down, refinanced or satisfied. View the recorded
document.
Date
Record
Amount
Per res. unit
2025-12-08
RPTT&RET $1,520,000 — from ALEXANDRA SCOTT ELIZABETH OWENS, ADMINIS; ESTATE OF ROBERT SPENCER TRENTLYON to REED, JOHN C; MISHIMA, HIROYUKI
$1,520,000
2025-12-02
Sold for $1,520,000
$1,520,000
$304,000
2017-08-09
RPTT&RET $1,587,500 — from CEGLIA MANFREDI, MARIA ENRICA to MULLIGAN, JEFFREY H
$1,587,500
2017-07-31
Sold for $1,587,500
$1,587,500
$317,500
2016-07-22
RPTT&RET $1,450,000 — from BROLIN, GRANIA to KITMAN, TAYA
$1,450,000
2016-05-31
Sold for $1,450,000
$1,450,000
$290,000
2012-06-21
RPTT&RET $1,100,000 — from RAHIMIAN, JOSEPH to MANFREDI, MARIA ENRICA CEGLIA
$1,100,000
2010-11-05
RPTT $1,625,000 — from DAVID S. GIBBONS, AS TRUSTEE; AMENDED AND RESTATED MARY WEITZEL GIBBON to SAVAGE, COLIN
$1,625,000
2007-09-06
RPTT&RET $999,000 — from ALECCI, ALLESANDRA to ANSARGE, VERONIQUE; ANSARGE, MARK
$999,000
2007-07-17
RPTT&RET $952,000 — from JULKOWSKI, JEFFREY; RIEDER, KILLIAN to RAHIMIAN, JOSEPH
$952,000
2007-06-15
AL&R $310,000 — from CHELSEA SQUARE NORTH, INC. to NCB; NATIONAL CONSUMER COOPERATIVE BANK
$310,000
2007-06-15
Mortgage $310,000 — from CHELSEA SQUARE NORTH, INC. to NATIONAL CONSUMER COOPERATIVE BANK; NCB
$310,000
Ten-year activity
1050
6
2017
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
0
4
2
6
2018
1
0
1
2
2019
1
0
1
2
2020
0
0
0
0
2021
3
0
0
3
2022
4
0
0
4
2023
6
0
0
6
2024
3
0
1
4
2025
4
2
0
6
2026
0
0
1
1
This record is free. Keeping it free costs money. Servers, data pipelines, weekends. Pay what you want — a dollar helps.
RPTT&RET $1,520,000 — from ALEXANDRA SCOTT ELIZABETH OWENS, ADMINIS; ESTATE OF ROBERT SPENCER TRENTLYON to REED, JOHN C; MISHIMA, HIROYUKI
2025-12-02
Sold for $1,520,000
The full timeline
2026
2026-05-12Rodent inspection: Passed
2025
2025-12-31Bedbug filing: 0 infested units
2025-12-08RPTT&RET $1,520,000 — from ALEXANDRA SCOTT ELIZABETH OWENS, ADMINIS; ESTATE OF ROBERT SPENCER TRENTLYON to REED, JOHN C; MISHIMA, HIROYUKI$1,520,000
2025-12-02Sold for $1,520,000$1,520,000
2025-06-09Bedbug filing: 0 infested units
2025-06-04HPD 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
2025-04-14311: Panhandling — N/A
2024
2024-10-11Rodent inspection: Passed
2024-04-02Bedbug filing: 0 infested units
2024-04-01HPD 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
2024-02-12311: Abandoned Vehicle — With License Plate
2023
2023-11-15HPD 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
2023-03-15HPD 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
2023-01-20311: Noise - Helicopter — Other
2022
2022-06-28311: Noise - Helicopter — Other
2022-04-05311: Noise - Helicopter — Other
2022-04-02311: Noise - Helicopter — Other
2022-02-16311: Noise - Helicopter — Other
2021
2021-12-09Bedbug filing: 0 infested units
2021-03-29311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2021-02-21Bedbug filing: 0 infested units
2019
2019-04-25311: Water System — Leak (Use Comments) (WA2)
2019-04-02Rodent inspection: Passed
2018
2018-11-30311: Water System — Leak (Use Comments) (WA2)
2018-07-16Rodent inspection: Passed
2017
2017-12-08Mortgage satisfied — from CHELSEA SQUARE NORTH, INC. to FANNIE MAE; NATIONAL CONSUMER COOPERATIVE BANK
2017-12-08TL&R — from CHELSEA SQUARE NORTH, INC. to NATIONAL CONSUMER COOPERATIVE BANK; FANNIE MAE
2017-08-14Rodent inspection: Passed
2017-08-09RPTT&RET $1,587,500 — from CEGLIA MANFREDI, MARIA ENRICA to MULLIGAN, JEFFREY H$1,587,500
2017-07-31Sold for $1,587,500$1,587,500
2017-01-17Rodent inspection: Passed
2016
2016-07-22RPTT&RET $1,450,000 — from BROLIN, GRANIA to KITMAN, TAYA$1,450,000
2016-06-20FDNY inspection (RISK)
2016-05-31Sold for $1,450,000$1,450,000
2015
2015-02-26311: Noise — Noise: Construction Before/After Hours (NM1)
2014
2014-07-30FDNY inspection (STRUC_INT)
2012
2012-10-05Permit EW — ISSUED
2012-09-12Rodent inspection: Passed
2012-06-21RPTT&RET $1,100,000 — from RAHIMIAN, JOSEPH to MANFREDI, MARIA ENRICA CEGLIA$1,100,000
2012-06-19Permit EQ — ISSUED
2012-06-18Permit EQ — ISSUED
2011
2011-10-12Permit EW — ISSUED
2011-08-28311: Damaged Tree — Tree Leaning/Uprooted
2011-07-14Job filed: INSTALLATION OF HEAVY DUTY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. WORK SHALL COMPLY WITH 2008 BUILDING CODE CHAPTER 33
2011-07-14Job filed: INSTALLATION OF HEAVY DUTY SIDEWALK SHED AS PER PLANS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. WORK SHALL COMPLY WITH 2008 BUILDING CODE CHAPTER 33
2011-07-14Job filed: INSTALLATION OF PIPE SCAFFOLD AS PER PLANS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY. WORK SHALL COMPLY WITH 2008 BUILDING CODE CHAPTER 33
2011-07-14Permit EQ — ISSUED
2011-07-14Permit EQ — ISSUED
2011-07-11Permit EW — ISSUED
2011-06-20Rodent inspection: Passed
2011-03-18Permit EW — ISSUED
2010
2010-11-05RPTT $1,625,000 — from DAVID S. GIBBONS, AS TRUSTEE; AMENDED AND RESTATED MARY WEITZEL GIBBON to SAVAGE, COLIN$1,625,000
2010-11-01Job filed: LIMITED EXTERIOR RESTORATION OF THE SOUTH ELEVATION. NO CHANGE TO USE, EGRESS OR OCCUPANCY.$161,300
2010-11-01Job filed: LIMITED EXTERIOR RESTORATION OF THE SOUTH ELEVATION. NO CHANGE TO USE, EGRESS OR OCCUPANCY.$161,300
2010-06-15Permit PL — ISSUED
2010-06-14Rodent inspection: Passed
2010-04-07Permit EW — ISSUED
2010-03-17Permit EW — ISSUED
2010-03-17Permit EW — ISSUED
2009
2009-10-30Job filed: STRUCTURAL WORK ASSOCIATED WITH THE RENOVATION OF EXISTING APARTMENT. NO CHANGE IN USE, OCCUPANCY OR EGRESS.$10,000
2009-06-05Job filed: RENOVATION OF EXISTING APARTMENT ON THE 2ND FLOOR. ARCHITECTURAL AND PLUMBING WORK. WITH EASEMENT TO 411 WEST 21ST STREET.$33,000
2009-06-05Job filed: RENOVATION OF EXISTING APARTMENT ON THE 2ND FLOOR. ARCHITECTURAL AND PLUMBING WORK. WITH EASEMENT TO 411 WEST 21ST STREET.$33,000
2009-06-05Job filed: RENOVATION OF EXISTING APARTMENT ON THE 2ND FLOOR. ARCHITECTURAL AND PLUMBING WORK. WITH EASEMENT TO 411 WEST 21ST STREET.$33,000
2009-06-05Job filed: MECHANICAL WORK IN CONJUNCTION WITH RENOVATION OF EXISTING APARTMENT ON THE 2ND FLOOR. WITH EASEMENT TO 411 WEST 21ST STREET.$2,500
2008
2008-01-28Mortgage assigned — from NCB, FSB to FANNIE MAE
2008-01-28AALR — from NCB, FSB to FANNIE MAE
2007
2007-10-19Permit EW — ISSUED
2007-09-28Job filed: MASONRY RECONSTRUCTION AS PER DRAWINGSNO CANGES$15,000
2007-09-06RPTT&RET $999,000 — from ALECCI, ALLESANDRA to ANSARGE, VERONIQUE; ANSARGE, MARK$999,000
2007-07-17RPTT&RET $952,000 — from JULKOWSKI, JEFFREY; RIEDER, KILLIAN to RAHIMIAN, JOSEPH$952,000
2007-06-18Mortgage satisfied — from CHELSEA SQUARE NORTH, INC. to KEY BANK OF NEW YORK; KEY BANK OF WESTERN NEW YORK, N.A.
2007-06-15AALR — from NCB; NATIONAL CONSUMER COOPERATIVE BANK to NCB, FSB
2007-06-15AL&R $310,000 — from CHELSEA SQUARE NORTH, INC. to NCB; NATIONAL CONSUMER COOPERATIVE BANK$310,000
2007-06-15Mortgage $310,000 — from CHELSEA SQUARE NORTH, INC. to NATIONAL CONSUMER COOPERATIVE BANK; NCB$310,000
2007-06-15Mortgage assigned — from NATIONAL CONSUMER COOPERATIVE BANK to NCB, FSB
2002
2002-08-20SAGE — from LANDMARKS PRESERVATION COMMISSION
1993
1993-05-28Mortgage assigned — from FEDERAL DEPOSIT INSCORP to KEY BANK OF NEW YORK
1970
1970-09-24LDMK — from CHELSEA HISTORIC DISTRICT
1970-09-21Mortgage assigned — from MITCHELL, JAY B; MITCHELL, MELVIN S to ENSEN, JOHN; CHERNOW, ESTELLE; WEINTRAUB, MARTHA; MINDRICH, ANNE