A modest record — below the level that usually signals systemic problems. More recorded distress than 85% 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 11.7. In ZIP 10021, 81% of residential buildings hold an A and
3% 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
5 service requests in the last three years. Most common: Root/Sewer/Sidewalk Condition (2) · Noise (1) · Rodent (1) · Sidewalk Condition (1).
Filed construction activity
$39,000 in permitted construction work filed since
2016 (3 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 (1880)
No
Six or more residential units (2)
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)
GEF DEVELOPMENT CORP.
Head officer
Michele Kulka
Managing agent
GEF DEVELOPMENT CORP.
Last registered
2025-10-27
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
$7,527,000
$451,620
2026
$7,281,000
$436,860
2027
$7,978,000
$478,680
The city's market estimate has risen
6% 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
77 St — 6 · 0.2 mi straight-line (about a 5-minute walk) · station accessibility: none
Bus
Nearest boarding stop: E 72 St / Lexington Av — M72 · 200 ft
Citi Bike
E 72 St & Park Ave · 500 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.
5 311 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: $807,707 on
2006-11-22 (lender: Washington Mutual Bank, Fa). Face amount at recording — it may have since been paid
down, refinanced or satisfied. View the recorded
document.
Date
Record
Amount
Per res. unit
2015-02-12
Deed $7,825,000 — from 136 EAST 73RD STREET CORP. to GEF DEVELOPMENT CORPORATION
$7,825,000
2006-11-22
Agreement $3,200,000 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to WASHINGTON MUTUAL BANK FA
$3,200,000
2006-11-22
Mortgage $807,707 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to WASHINGTON MUTUAL BANK, FA
$807,707
2006-03-10
Mortgage $1,547,773 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to WASHINGTON MUTUAL BANK, F.A.
$1,547,773
2006-03-10
M&CON $2,750,000 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to WASHINGTON MUTUAL BANK, F.A.
$2,750,000
1988-11-04
Mortgage $362,000 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to CITIBANK N A
$362,000
1988-11-04
Mortgage $124,000 — from RADEMACHER, NORGBERT; RADEMACHER, EDELTRAUD to CITIBANK, N.A.
$124,000
1986-08-27
Mortgage $230,000 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to DG BANK DEUTSCHE ETC.
$230,000
1985-01-16
Mortgage $286,336 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to DG BANK DEUTSCHE ETC.
$286,336
1984-01-17
Mortgage $174,371 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to CITIBANK, N.A.
$174,371
Ten-year activity
1050
10
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
ConstructionHousing & tenantsOwnership & moneyHealth & systems
Show as table
Year
Construction
Housing & tenants
Ownership & money
Health & systems
Total
2017
6
0
0
4
10
2018
0
0
0
3
3
2019
0
0
1
2
3
2020
0
5
0
1
6
2021
0
3
0
1
4
2022
0
1
0
1
2
2023
0
5
0
5
10
2024
0
0
0
1
1
2025
0
4
0
1
5
2026
0
1
0
1
2
This record is free. Keeping it free costs money. Servers, data pipelines, weekends. Pay what you want — a dollar helps.
2023-10-17Rodent inspection: Failed for Rat Activity and Other Reason
2023-08-22Rodent inspection: Passed
2023-07-03311: Rodent — Rat Sighting
2023-06-28Rodent inspection: Failed for Rat Activity
2023-06-21311: Rodent — Rat Sighting
2023-01-27Boiler inspection
2023-01-19311: Seasonal Collection — Christmas Tree
2022
2022-11-16HPD 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
2022-03-24Boiler inspection
2021
2021-09-09311: Water System — Excessive Water In Basement (WEFB)
2021-08-27311: Water System — Leak (Use Comments) (WA2)
2021-03-11311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-08-15311: Damaged Tree — Branch or Limb Has Fallen Down
2020-07-21311: Request Large Bulky Item Collection — Request Large Bulky Item Collection
2020-06-19Bedbug filing: 0 infested units
2020-02-06Boiler inspection
2019
2019-11-27Rodent inspection: Passed
2019-10-03Mortgage satisfied — from 136 E 73RD ST CORP to JPMORGAN CHASE BANK NATIONAL ASSOCIATION; THE FEDERAL DEPOSIT INSURANCE CORPORATIO; WASHIN
2019-07-26Boiler inspection
2018
2018-12-20Rodent inspection: Passed
2018-11-05Boiler inspection
2018-05-01Rodent inspection: Passed
2017
2017-12-14Boiler inspection
2017-10-30Rodent inspection: Failed for Rat Activity
2017-09-18Rodent inspection: Failed for Rat Activity
2017-08-31Permit EW — ISSUED
2017-08-31Permit EW — ISSUED
2017-08-31Permit PL — ISSUED
2017-08-28Job filed: REPLACE GAS PIPING AS REQUIRED, RELOCATE METER TO FRONT. PROVIDE FRESH AIR VENT TO NEW GAS METER ROOM IN CELLAR FROM EXTERIOR AT FIRST FLOOR.$13,000
2017-08-28Job filed: REPLACE GAS PIPING AS REQUIRED, RELOCATE METER TO FRONT. PROVIDE FRESH AIR VENT TO NEW GAS METER ROOM IN CELLAR FROM EXTERIOR AT FIRST FLOOR.$13,000
2017-05-25Job filed: REPLACE CORRODED GAS LINE, MOVE GAS METER TO NEW METER ROOM.$13,000
2017-04-26Rodent inspection: Passed
2016
2016-06-28Rodent inspection: Passed
2015
2015-03-03DOB violation LBLVIO: VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT
2015-02-12Deed $7,825,000 — from 136 EAST 73RD STREET CORP. to GEF DEVELOPMENT CORPORATION$7,825,000
2014-07-26311: Other Enforcement — E2A Storage Of Receptacles
2014-05-15DOB violation LBLVIO: VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2012 INSPECTION REPORT
2012
2012-07-06Rodent inspection: Passed
2011
2011-12-02Rodent inspection: Passed
2010
2010-11-05Rodent inspection: Passed
2010-02-08311: Water System — Leak (Use Comments) (WA2)
2006
2006-11-22Agreement $3,200,000 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to WASHINGTON MUTUAL BANK FA$3,200,000
2006-11-22Mortgage $807,707 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to WASHINGTON MUTUAL BANK, FA$807,707
2006-03-10PAT — from RADEMACHER, NORBERT to RADEMACHER, CLAUS F
2006-03-10Mortgage assigned — from CITIMORTGAGE, INC. to WASHINGTON MUTUAL BANK, F.A.
2006-03-10Mortgage $1,547,773 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to WASHINGTON MUTUAL BANK, F.A.$1,547,773
2006-03-10M&CON $2,750,000 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to WASHINGTON MUTUAL BANK, F.A.$2,750,000
2006-03-10PAT — from RADEMACHER, EDELTRAUD to RADEMACHER, CLAUS F
2002
2002-09-05Job filed: Add a room at rear yard to the basement floor. Install partitions and plumbing.C hange the use of the Basement floor to offices.$40,000
1999
1999-06-25DOB complaint, category ?
1991
1991-06-07DOB violation LANDMK:
1990
1990-04-09ECB Non-Hazardous violation: ALTERED BUILDING OCCUPIED WITHOUT A VALID C OF O AS REQUIRED BY OPEN ALTERATION 94/81
1989
1989-04-24DOB violation C:
1988
1988-11-04Mortgage $362,000 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to CITIBANK N A$362,000
1988-11-04PAT — from RADEMACHER, EDELTRAUD to PLUMP, LESLIE
1988-11-04PAT — from RAADEMACHER, NORBERT to PLUMP, LESLIE
1988-11-04Mortgage assigned — from DEUTSCHE GENOSSENSCHAFT to CITIBANK N A
1988-11-04Mortgage $124,000 — from RADEMACHER, NORGBERT; RADEMACHER, EDELTRAUD to CITIBANK, N.A.$124,000
1986
1986-08-27Mortgage $230,000 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to DG BANK DEUTSCHE ETC.$230,000
1986-08-27Agreement — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to DG BANK DEUTSCHE ETC.
1986-08-27Mortgage assigned — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to DG BK DEUTSCHE ETC.
1986-03-26DOB violation LANDMRK:
1986-03-26DOB violation LANDMK:
1985
1985-01-23Mortgage assigned — from CITIBANK, N.A. to DEUTSCHE GENOSSENSCHAFBK
1985-01-16Mortgage $286,336 — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to DG BANK DEUTSCHE ETC.$286,336
1985-01-16Mortgage assigned — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to DG BANK DEUTSCHE ETC.
1985-01-16PAT — from RADEMACHER, EDELTRAUD to RADEMACHER, NORBERT
1984
1984-01-17Agreement — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to CITIBANK, N.A.
1984-01-17Mortgage assigned — from NATIONAL BANK/N.Y.C. to CITIBANK, N.A.
1984-01-17Mortgage $174,371 — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to CITIBANK, N.A.$174,371
1982
1982-07-02LDMK — from LANDMARKS PRESERVTNCOMM to CITY OF NEW YORK
1980
1980-10-31Mortgage assigned — from CITIBANK NA to FLUSHING NATIONAL BNK
1980-10-31Agreement — from RADEMACHER, EDELTRAUD; RADEMACHER, NORBERT to FLUSHING NATIONAL BNK
1980-10-31Mortgage — from RADEMACHER, NORBERT; RADEMACHER, EDELTRAUD to FLUSHING NATIONAL BNK
1980-10-31Deed — from SCHWARTZ, ROBERT J; ROSS, GAIL to RADEMACHER, EDELTRANO; RADEMACHER, NORBERT
1979
1979-07-07MISC — from VOSS, ELOISE MC CLURE
1979-06-07MISC — from SCHWARTZ, MILTON
1979-06-07MISC — from CAMMACK, MORRIS D
1979-06-07Deed — from 136 E 73RD ST CORP to ROSS, GAIL; SCHWARTZ, ROBER
1979-06-07Mortgage — from 136 E 73RD ST CORP to CITIBANK N A
1979-06-07Deed — from JAN MILNER GALLERY INC to 136 E 73RD ST CORP
1978
1978-07-28Agreement — from JAN MILNER GALLERY INC to COMMACK, MORRIS D
1978-07-14Deed — from VOSS, ELOISE MC CLURE to JAN MILNER GALLERY INC
1978-07-14Mortgage — from JAN MILNER GALLERY INC to SCHWARTZ, MILTON
1978-07-14Mortgage — from JAN MILNER GALLERY INC to VOSS, ELOISE MC CLURE
1978-07-10MISC — from CITY OF NEW YORK
1978-05-25Deed — from COMMISSIONER OF FINANCE NY; COMMISSIONER OF FINANCE NY to CITY OF NEW YORK; CITY OF NEW YORK
1978-05-25Deed — from COMMISSIONER OF FINANCE NY; COMMISSIONER OF FINANCE NY to CITY OF NEW YORK; CITY OF NEW YORK
1972
1972-04-21Deed — from COMMACK, MORRIS D to VOSS, ELOISE MC CLURE
1972-04-21Mortgage — from VOSS, ELOISE MC CLURE to COMMACK, MORRIS D