A modest record — below the level that usually signals systemic problems. More recorded distress than 68% 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 38.8. In ZIP 10031, 40% of residential buildings hold an A and
14% 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
4 total — 2 class C (immediately hazardous), 2 class B, 0 class A. Oldest open since 2001-06-12.
status snapshot refreshed weekly from HPD records
Patterns
2 heat or hot-water complaints in the last three years (winter 2025–26: 2).
No bedbug-infested units reported in the last three years of filings.
What 311 hears from this address
8 service requests in the last three years. Most common: Noise (3) · Abandoned Vehicle (1) · Derelict Vehicles (1) · HEAT/HOT WATER (1) · Sidewalk Condition (1) · Illegal Parking (1).
Filed construction activity
$89,460 in permitted construction work filed since
2016 (6 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
Yes
Built before 1974 (1892)
Yes
Six or more residential units (8)
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)
MAYFIELD CAPITAL LLC
Head officer
ALEX YELON
Managing agent
BUILDING EQUITY MANAGEMENT LLC
Last registered
2026-07-29
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
$961,000
$432,450
2026
$974,000
$438,300
2027
$779,000
$350,550
The city's market estimate has fallen
19% 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
145 St — A B C D · 350 ft straight-line (about a 2-minute walk) · station accessibility: none 145 St — 1 · 0.3 mi straight-line (about a 7-minute walk) · station accessibility: none
Bus
Nearest boarding stop: Saint Nicholas Av / W 148 St — M3 · 400 ft
Citi Bike
W 148 St & Amsterdam Ave · 450 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.
8 311 service requests from this address in the last three years — 1 of them about heat or hot water.
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: $2,790,000 on
2022-05-10 (lender: First Republic 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
2022-06-02
Agreement $3,402,479 — from COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC to FIRST REPUBLIC BANK
$3,402,479
2022-05-10
Agreement $2,790,000 — from MAYFIELD CAPITAL LLC; COSAR CAPITAL LLC to FIRST REPUBLIC BANK
$2,790,000
2022-05-10
Mortgage $2,790,000 — from MAYFIELD CAPITAL LLC; COSAR CAPITAL LLC to FIRST REPUBLIC BANK
$2,790,000
2022-05-10
AL&R $2,790,000 — from MAYFIELD CAPITAL LLC; COSAR CAPITAL LLC to FIRST REPUBLIC BANK
$2,790,000
2022-05-10
Agreement $3,402,479 — from COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC to FIRST REPUBLIC BANK
$3,402,479
2017-12-04
Mortgage $951,750 — from CHICAMA HOLDINGS LLC; COSAR CAPITAL LLC to SANTANDER BANK, N.A.
$951,750
2017-12-04
Agreement $3,725,000 — from COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC to SANTANDER BANK, N.A.
$3,725,000
2015-06-22
Agreement $1,685,959 — from CHICAMA HOLDINGS LLC; CONVENT AVENUE, LLC; COSAR CAPITAL LLC; SARSHAR, HOUMAN to SANTANDER BANK, N.A.
$1,685,959
2015-06-22
Agreement $1,247,734 — from COSAR CAPITAL LLC; CONVENT AVENUE, LLC; CHICAMA HOLDINGS LLC; SARSHAR, HOUMAN to SANTANDER BANK, N.A.
$1,247,734
2014-12-15
Mortgage $1,700,000 — from CONVENT AVENUE, LLC to SANTANDER BANK, N.A.
$1,700,000
2010-11-18
Mortgage $105,577 — from CONVENT AVENUE, LLC to SOVEREIGN BANK
$105,577
2010-11-18
Agreement $1,350,000 — from CONVENT AVENUE, LLC to SOVEREIGN BANK
$1,350,000
2007-07-16
AL&R $1,300,000 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND
$1,300,000
2007-07-16
Mortgage $474,186 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND
$474,186
2007-07-16
Agreement $1,300,000 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND
$1,300,000
Ten-year activity
50250
2017
2018
2019
2020
36
2021
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
Year
Construction
Enforcement
Housing & tenants
Ownership & money
Health & systems
Total
2017
3
4
10
2
3
22
2018
5
1
1
0
2
9
2019
1
0
3
0
1
5
2020
1
0
7
0
1
9
2021
3
0
30
1
2
36
2022
2
0
7
9
3
21
2023
0
0
4
0
4
8
2024
0
0
3
2
6
11
2025
0
0
4
0
5
9
2026
0
0
4
0
3
7
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2024-10-25311: Abandoned Vehicle — With License Plate
2024-08-02Rodent inspection: Monitoring visit
2024-07-23Rodent inspection: Bait applied
2024-07-08Rodent inspection: Failed for Rat Activity and Other Reason
2024-05-28Rodent inspection: Failed for Rat Activity and Other Reason
2024-02-21Boiler inspection
2024-01-11Mortgage assigned — from FIRST REPUBLIC BANK; FEDERAL DEPOSIT INSURANCE CORPORATION; JPMORGAN CHASE BANK, N.A. to JPMORGAN CHASE BANK NATIONAL ASSOCIATION
2024-01-11AALR — from FEDERAL DEPOSIT INSURANCE CORPORATION; FIRST REPUBLIC BANK; JPMORGAN CHASE BANK, N.A. to JPMORGAN CHASE BANK NATIONAL ASSOCIATION
2023
2023-12-26Bedbug filing: 0 infested units
2023-12-13Rodent inspection: Failed for Rat Activity and Other Reason
2023-11-17Rodent inspection: Failed for Rat Activity and Other Reason
2023-06-21311: Lead — Lead Kit Request (Residential) (L10)
2023-06-02311: New Tree Request — For One Address
2023-05-22Rodent inspection: Passed
2023-05-18311: Dirty Condition — Debris from Car Accident
2018-08-14Job filed: REPLACE GAS BOILER (NYC BOILER NO. MD70014-01) INSTALL TWO (2) GAS FIRED HOT WATER HEATERS.$10,000
2018-08-14Job filed: REPLACE GAS BOILER (NYC BOILER NO. MD70014-01) INSTALL TWO (2) GAS FIRED HOT WATER HEATERS.$10,000
2018-05-04Boiler inspection
2018-01-08DOB violation P: THE BOROUGH COMMISSIONER HAS ISSUED A NOTICE TO REVOKE APPLICATION #14 0515173 DUE TO REVOCATION OF THE MASTER PLUMBERS LICENSE #13
2017-12-04Mortgage $951,750 — from CHICAMA HOLDINGS LLC; COSAR CAPITAL LLC to SANTANDER BANK, N.A.$951,750
2017-12-04Agreement $3,725,000 — from COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC to SANTANDER BANK, N.A.$3,725,000
2017-12-02311: Homeless Encampment — N/A
2017-11-28311: Homeless Encampment — N/A
2017-11-04ECB CLASS - 2 violation: WORK W/O A PERMIT. WORK NOTED: IN LANDMARK BLDG AT FRONT(147 STREET)ONBASEMENT LEVEL OBSERVED 2 NEW CHIMNEYS/VENTS WERE INSTALLED $400
2017-10-16DOB violation LANDMK:
2017-09-24311: Homeless Encampment — N/A
2017-09-11311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2017-09-08311: Homeless Person Assistance — N/A
2017-09-02311: Homeless Encampment — N/A
2017-08-21Boiler inspection
2017-08-20311: Homeless Encampment — N/A
2017-08-03311: General Construction/Plumbing — Cons - Contrary/Beyond Approved Plans/Permits
2017-08-03DOB complaint, category ?
2017-07-17311: Sanitation Condition — 22 Weeds
2017-06-15Permit EW — ISSUED
2017-06-14Job filed: INSTALL NEW CHIMNEY LINER AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.$15,230
2017-06-14Job filed: INSTALL NEW CHIMNEY LINER AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.$15,230
2017-03-27Rodent inspection: Passed
2016
2016-03-23Rodent inspection: Passed
2015
2015-10-03311: HEAT/HOT WATER — ENTIRE BUILDING
2015-10-03Tenant complaint: HEAT/HOT WATER — ENTIRE BUILDING
2015-10-01311: Street Light Condition — Street Light Out
2015-07-27Rodent inspection: Passed
2015-06-22Deed — from CONVENT AVENUE, LLC to COSAR CAPITAL LLC; CHICAMA HOLDINGS LLC
2015-06-22Agreement $1,685,959 — from CHICAMA HOLDINGS LLC; CONVENT AVENUE, LLC; COSAR CAPITAL LLC; SARSHAR, HOUMAN to SANTANDER BANK, N.A.$1,685,959
2015-06-22Agreement $1,247,734 — from COSAR CAPITAL LLC; CONVENT AVENUE, LLC; CHICAMA HOLDINGS LLC; SARSHAR, HOUMAN to SANTANDER BANK, N.A.$1,247,734
2015-02-03HPD class I: SECTION27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE ?27-2097 AND IS THER
2014
2014-12-15Mortgage $1,700,000 — from CONVENT AVENUE, LLC to SANTANDER BANK, N.A.$1,700,000
2014-08-29Rodent inspection: Passed
2014-05-25FDNY inspection (RISK)
2013
2013-11-24311: HEATING — HEAT
2013-11-23Tenant complaint: HEATING — HEAT RELATED
2013-07-18Rodent inspection: Passed
2012
2012-06-13Rodent inspection: Passed
2011
2011-10-19Permit EW — ISSUED
2011-08-02Job filed: INSTALLATION OF (21) SHARP 240 SOLAR PANELS AT EXISTING ROOF , ALL AS PER PLANS NO CHANGE IN USE EGREES OR OCCUPANCY.$65,136
2011-08-02Job filed: INSTALLATION OF (21) SHARP 240 SOLAR PANELS AT EXISTING ROOF , ALL AS PER PLANS NO CHANGE IN USE EGREES OR OCCUPANCY.$65,136
2011-03-30Rodent inspection: Passed
2010
2010-11-18Mortgage $105,577 — from CONVENT AVENUE, LLC to SOVEREIGN BANK$105,577
2010-11-18REL — from THE FIRST NATIONAL BANK OF LONG ISLAND to CONVENT AVENUE, LLC
2010-11-18Mortgage assigned — from THE FIRST NATIONAL BANK OF LONG ISLAND to SOVEREIGN BANK
2010-11-18Agreement $1,350,000 — from CONVENT AVENUE, LLC to SOVEREIGN BANK$1,350,000
2010-03-01Rodent inspection: Passed
2007
2007-07-16Mortgage assigned — from ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA to THE FIRST NATIONAL BANK OF LONG ISLAND
2007-07-16AL&R $1,300,000 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND$1,300,000
2007-07-16TL&R — from ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA to CONVENT AVENUE, LLC
2007-07-16Mortgage $474,186 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND$474,186
2007-07-16Agreement $1,300,000 — from CONVENT AVENUE, LLC to THE FIRST NATIONAL BANK OF LONG ISLAND$1,300,000
2003
2003-05-29AL&R $877,500 — from ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA to CONVENT AVENUE,LLC$877,500
2003-05-29M&CON $252,739 — from CONVENT AVENUE,LLC to ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA$252,739
2003-05-29TL&R — from ASTORIA FEDERAL SAVINGS AND LOAN ASSOCIA to CONVENT AVENUE,LLC
2003-03-19DOB violation LL6291:
2002
2002-03-26DOB violation LL6291:
2002-02-27WSAT — from BARON, LAURENCE; BARON ASSOCIATES; BARON, DENIS; BARON, NEVILLE to AMERICAN SAVINGS ANDLOAN ASSOCIATION
2001
2001-12-12SAGE — from MONEY NOW MORTGAGE CORPORATION
2001-08-15SAGE — from LANDMARKS PRESERVATION COMMISSION
2001-08-02Mortgage assigned — from CONVENT AVENUE, LLC to ASTORIA FEDERAL SAVINGS & LOAN ASSOCIATI
2001-08-02Mortgage assigned — from MONEY NOW MORTGAGE CORPORATION to ASTORIA FEDERAL SAVINGS & LOAN ASSOCIATI
2001-08-02Deed — from BARON, LILLIAN B. ASADMINISTRATRIX; BARON, NEVILLE; BARON, LAURENCE; BARON, LAURENCE ARTHU to CONVENT AVENUE LLC
2001-08-02Mortgage $289,630 — from CONVENT AVENUE, LLC to ASTORIA FEDERAL SAVINGS & LOAN ASSOCIATI$289,630
2001-06-12HPD class C: SECTION 27-2031 ADM CODE PROVIDE HOT WATER AT ALL HOT WATER FIXTURES IN THE ENTIRE APARTMENT LOCATED AT APT 2A, 2nd STORY, 1st APARTMENT FRO
2001-06-12HPD class B: SECTION 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR MISSING (KENDALL) IN THE ENTIRE APARTMENT LOCATED AT APT 2A, 2nd STORY, 1st AP
2001-06-12HPD class C: SECTION 27-2033 ADM CODE PROVIDE READY ACCESS TO BUILDINGS HEATING SYSTEM LOCKED AT CELLAR
2001-06-12HPD class B: SECTION 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE INTER-COM IN THE FOYER LOCATED AT APT 2A, 2nd STORY, 1st APARTMENT FROM SOU
2001-02-27DOB violation LL6291:
2000
2000-01-21Mortgage assigned — from BARON, NEVILLE; BARON, LAURENCE to MONEY NOW MORTGAGE CORPORATION
2000-01-21Agreement — from BARON, LAURENCE; BARON, NEVILLE to MONEYNOW MORTGAGE CORPORATION
2000-01-21SAGE — from FIRST NATIONAL BANKOF CHICAGO, AS TRUSTE
2000-01-21Mortgage $134,448 — from BARON, NEVILLE; BARON, LAURENCE to MONEYNOW MORTGAGE CORPORATION$134,448
2000-01-21Mortgage assigned — from FIRST NATIONAL BANKAS TRUSTEE to MONEYNOW MORTGAGE CORPORATION
2000-01-21Deed — from BARON, DENIS G. to BARON, LAURENCE; BARON, NEVILLE
2000-01-21PAT — from BARON, NEVILLE A. to WOOTEN, WILLIAM J.
1997
1997-06-23ATL — from BANK OF NEW YORK to CITY OF NEW YORK
1996
1996-12-09Mortgage assigned — from AMERICAN SAVINGS ANDLOAN ASSOCIATION to FIRST NATIONAL BANKOF CHICAGO AS TRUSTEE
1996-12-09Mortgage assigned — from AMERICAN SAVINGS ANDLOAN ASSOCIATION to FIRST SAVINGS AND LOAN ASSOCIATION
1996-06-12TLS — from CITY OF NEW YORK to BANK OF NEW YORK
1989
1989-06-08Mortgage satisfied — from BARON, NEVILLE; BARON, LAURENCE; BARON, DENIS to CENTRAL FED SVGS
1989-06-08Mortgage satisfied — from BARON, DENIS; BARON, NEVILLE; BARON, LAURENCE to CENTRAL FED SVGS
1988
1988-07-12Mortgage $275,000 — from BARON, DENIS G; BARON ASSOCS DBA; BARON, NEVILLE; BARON, LAURENCE to AMERICAN SVGS&LN ASSN$275,000
1988-07-12Mortgage assigned — from BARON ASSOCS; BARON, LAURENCE; BARON, DENIS G; BARON, NEVILLE to AMERICAN SVGS&LN ASN
1985
1985-04-17Mortgage $1,850 — from BARON, NEVILLE; BARON, LAURENCE; BARON, DENIS to CENTRAL FEDERAL SAVS,FSB$1,850
1985-04-17Mortgage $17,500 — from BARON, DENIS; BARON, NEVILLE; BARON, LAURENCE to CENTRAL FEDERAL SAVS,FSB$17,500