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633 10 Street · Brooklyn · BBL 3010930074 · generated 2026-10-20 · FREE

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Where the penalty points come from

ComponentWhat it coversPoints
Housing codeHPD violations by class, complaints, emergency repairs, litigation, vacate orders, AEP1.8
Structural & safetyDOB violations, ECB/OATH violations by class0
PestsBedbug filings, failed rodent inspections, rodent 311s0
DisplacementMarshal evictions executed0
GRADE A

The city's published records show little recorded distress here in the last three years. Less recorded distress than 81% 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 3. In ZIP 11215, 70% of residential buildings hold an A and 4% 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

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

8 service requests in the last three years. Most common: Illegal Parking (4) · PLUMBING (2) · Blocked Driveway (1) · Curb Condition (1).

Filed construction activity

$48,000 in permitted construction work filed since 2016 (2 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 (1894)
YesSix or more residential units (6)
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)917 8TH AVE REALTY, LLC.
Head officerNICHOLAS G KOTSONIS
Managing agentKOTSONIS ORGANIZATION LLC.
Last registered2025-10-11

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

What the city thinks it's worth

Tax yearCity market valueAssessed value
2025$1,557,000 $700,650
2026$1,660,000 $747,000
2027$1,879,000 $845,550

The city's market estimate has risen 21% between tax years 2025 and 2027.

Building systems

Heating fuelNATURALGAS

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

Subway7 Av — F G · 100 ft straight-line (about a 1-minute walk) · station accessibility: full
BusNearest boarding stop: 9 St / 8 Av — B61 · 150 ft
Citi Bike8 Ave & 11 St · 350 ft · station location as of 2026-09-23; live availability
School zones (2024–25 map)Elementary: P.S. 107 John W. Kimball. 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

633 10 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

8 311 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 KOTSONIS ORGANIZATION LLC. — 27 buildings, 239 units. Grades across the portfolio: A20 · B6 · C1. See the whole portfolio

BuildingBoroughUnitsGrade
94 Prospect Park West BK30 A
594 6 Street BK16 B
101 Prospect Park West BK10 A
767 Union Street BK10 A
549 Bergen Street BK10 B
770 Union Street BK9 B
886 Union Street BK9 B
392 Prospect Avenue BK8 A
693 Union Street BK8 A
873 Union Street BK8 A
845 President Street BK8 A
195 5 Avenue BK8 A
896 Union Street BK8 B
768 Union Street BK8 A
298 1 Street BK8 A
898 Union Street BK8 B
664 6 Avenue BK8 A
695 Union Street BK8 A
800 President Street BK8 A
134 29 Street BK8 A
832 Union Street BK7 A
74 Douglass Street BK7 A
248 5 Avenue BK7 A
21 Sterling Place BK6 A
633 10 Street BK6 A
287 19 Street BK5 A
287 6 Avenue BK3 C

Sales, deeds & mortgages

Most recent mortgage recorded against this lot: $1,461,285 on 2012-10-16 (lender: Investors Bank), 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.

DateRecordAmountPer res. unit
2022-01-31Mortgage $510,009 — from 917 8TH AVENUE REALTY LLC to CARVER FEDERAL SAVINGS BANK $510,009
2022-01-31Agreement $2,300,000 — from 917 8TH AVENUE REALTY LLC to CARVER FEDERAL SAVINGS BANK $2,300,000
2022-01-31AL&R $2,300,000 — from 917 8TH AVENUE REALTY LLC to CARVER FEDERAL SAVINGS BANK $2,300,000
2016-12-13AL&R $2,000,000 — from 917 8TH AVENUE REALTY LLC to DIME COMMUNITY BANK $2,000,000
2016-12-13Mortgage $2,000,000 — from 917 8TH AVENUE REALTY LLC to DIME COMMUNITY BANK $2,000,000
2012-10-16AL&R $3,700,000 — from 917 8TH AVENUE REALTY LLC; 229 FIFTH AVE. REALTY, INC. to INVESTORS BANK $3,700,000
2012-10-16Agreement $3,700,000 — from 917 8TH AVENUE REALTY LLC; 229 FIFTH AVE. REALTY, INC. to INVESTORS BANK $3,700,000
2012-10-16Mortgage $1,461,285 — from 229 FIFTH AVE. REALTY, INC.; 917 8TH AVENUE REALTY LLC to INVESTORS BANK $1,461,285
2008-08-25Agreement $695,000 — from 917 8TH AVENUE REALTY LLC to CAPITAL ONE, N. A. $695,000
2008-08-25AL&R $695,000 — from 917 8TH AVENUE REALTY LLC to CAPITAL ONE, N. A. $695,000
2008-08-25Mortgage $134,203 — from 917 8TH AVENUE REALTY LLC to CAPITAL ONE, N. A. $134,203
2003-12-18Mortgage $600,000 — from 917 8TH AVENUE REALTY LLC to THE ROSLYN SAVINGS BANK $600,000
2003-12-18DEEDO $910,000 — from KAGGEN, MARILYN; KAGGEN, ELIAS; KAGGEN MC CANN, LOIS to 917 8TH AVENUE REALTY LLC $910,000

Ten-year activity

1050
2017
2018
2019
2020
10
2021
2022
2023
2024
2025
2026
ConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systems
Show as table
YearConstructionEnforcementHousing & tenantsOwnership & moneyHealth & systemsTotal
2017005005
2018213017
2019112015
2020001012
20210090110
2022002518
2023204017
2024003014
20251080110
2026002024
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The last 12 months — 5 records

DateRecord
2026-09-16Boiler inspection
2026-05-22311: Illegal Parking — Blocked Hydrant
2026-04-21Bedbug filing: 0 infested units
2026-03-11Air permit (REGISTRATION), fuel: NATURALGAS
2025-11-10Boiler inspection

The full timeline

2026
2026-09-16Boiler inspection
2026-05-22311: Illegal Parking — Blocked Hydrant
2026-04-21Bedbug filing: 0 infested units
2026-03-11Air permit (REGISTRATION), fuel: NATURALGAS
2025
2025-11-10Boiler inspection
2025-09-04311: Illegal Parking — Posted Parking Sign Violation
2025-07-07311: Curb Condition — Broken Curb
2025-06-25Bedbug filing: 0 infested units
2025-06-17Permit General Construction — Permit Issued
2025-06-05HPD 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
2025-03-13311: PLUMBING — WATER SUPPLY
2025-03-13Tenant complaint: PLUMBING — WATER SUPPLY
2025-03-12311: PLUMBING — WATER SUPPLY
2025-03-12Tenant complaint: PLUMBING — WATER SUPPLY
2024
2024-09-08311: Illegal Parking — Blocked Hydrant
2024-03-18Bedbug filing: 0 infested units
2024-02-02Boiler inspection
2024-01-04311: Blocked Driveway — No Access
2023
2023-10-25311: Illegal Parking — Blocked Hydrant
2023-09-05Permit General Construction — Permit Issued
2023-08-25Job filed: APPLICATION FILE TO EXTERIOR FACADE REPAIR AS AS RE-PAINTING FACADE, CORNICE AND MINIOR REPOINTING AT NORTH ELEVATION AS PER PLAN. NO CHANGE IN USE$10,000
2023-07-26Bedbug filing: 0 infested units
2023-04-30311: Derelict Vehicles — Derelict Vehicles
2023-03-20HPD 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
2023-01-12Boiler inspection
2022
2022-07-11Boiler inspection
2022-04-11Bedbug filing: 0 infested units
2022-02-18HPD 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
2022-01-31TL&R — from DIME COMMUNITY BANK to 917 8TH AVENUE REALTY LLC
2022-01-31Mortgage assigned — from DIME COMMUNITY BANK to CARVER FEDERAL SAVINGS BANK
2022-01-31Mortgage $510,009 — from 917 8TH AVENUE REALTY LLC to CARVER FEDERAL SAVINGS BANK$510,009
2022-01-31Agreement $2,300,000 — from 917 8TH AVENUE REALTY LLC to CARVER FEDERAL SAVINGS BANK$2,300,000
2022-01-31AL&R $2,300,000 — from 917 8TH AVENUE REALTY LLC to CARVER FEDERAL SAVINGS BANK$2,300,000
2021
2021-10-29311: Abandoned Vehicle — With License Plate
2021-10-23311: Abandoned Vehicle — With License Plate
2021-10-21311: Abandoned Vehicle — With License Plate
2021-10-15311: Abandoned Vehicle — With License Plate
2021-10-05311: Abandoned Vehicle — With License Plate
2021-08-11Boiler inspection
2021-04-16Bedbug filing: 0 infested units
2021-04-05HPD 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
2021-02-06311: Snow — E9 Snow / Icy Sidewalk
2021-01-01311: Derelict Vehicles — Derelict Vehicles
2020
2020-09-18311: Sweeping/Missed — 3A Sweeping/Missed
2020-03-16Boiler inspection
2019
2019-08-20Boiler inspection
2019-03-21Permit PL — ISSUED
2019-03-15311: Other Enforcement — E2A Storage Of Receptacles
2019-02-01ECB CLASS - 2 violation: FAILURE TO PROVIDE APPROVED PLANS AT JOB SITE:AT TIME OF INSPECTION CONSTRUCTION ON PROGRESS 2 WORKERS WORKING W/O PLANS AT SITE O$625
2019-01-12311: Noise — Noise: Construction Before/After Hours (NM1)
2018
2018-12-22311: General Construction/Plumbing — Building Permit - None
2018-12-18311: General Construction/Plumbing — Building Permit - None
2018-12-18DOB complaint, category ?
2018-12-04Boiler inspection
2018-10-29Permit EW — ISSUED
2018-09-20Job filed: RENOVATION OF VACANT APARTMENT #3 ON THE SECOND FLOOR. REPLACE PLUMBING FIXTURES, MINOR PARTITION CHANGES. NO CHANGE IN USE, OCCUPANCY OR MEANS OF EG$38,000
2018-08-11311: Dirty Conditions — E5 Loose Rubbish
2017
2017-11-20311: Blocked Driveway — No Access
2017-05-15311: Dirty Conditions — E3A Dirty Area/Alleyway
2017-05-08311: Dirty Conditions — E3A Dirty Area/Alleyway
2017-03-17311: Snow — 15S Re-Plow/Spread/Ice-Snow Cond.
2017-03-16311: Snow — E9 Snow / Icy Sidewalk
2016
2016-12-14PREL — from INVESTORS BANK
2016-12-14TL&R — from 229 FIFTH AVE. REALTY, INC.; 917 8TH AVENUE REALTY LLC to INVESTORS BANK
2016-12-13AL&R $2,000,000 — from 917 8TH AVENUE REALTY LLC to DIME COMMUNITY BANK$2,000,000
2016-12-13Mortgage $2,000,000 — from 917 8TH AVENUE REALTY LLC to DIME COMMUNITY BANK$2,000,000
2016-11-03Permit PL — ISSUED
2016-03-01Rodent inspection: Monitoring visit
2016-02-23Rodent inspection: Monitoring visit
2016-02-16Rodent inspection: Monitoring visit
2016-01-13Rodent inspection: Bait applied
2015
2015-12-21Rodent inspection: Monitoring visit
2015-12-14Rodent inspection: Monitoring visit
2015-12-07Rodent inspection: Bait applied
2015-11-30Rodent inspection: Bait applied
2015-11-19311: Missed Collection (All Materials) — 2 Bulk-Missed Collection
2015-11-05Rodent inspection: Failed for Rat Activity
2015-09-20Rodent inspection: Bait applied
2015-09-08Rodent inspection: Monitoring visit
2015-08-28Rodent inspection: Bait applied
2015-08-02Rodent inspection: Bait applied
2015-07-15311: Sanitation Condition — 12 Dead Animals
2015-07-15311: Sidewalk Condition — Broken Sidewalk
2015-07-14311: Rodent — Rat Sighting
2015-07-14311: Rodent — Condition Attracting Rodents
2015-07-07Rodent inspection: Bait applied
2015-06-19Rodent inspection: Failed for Rat Activity
2015-06-02Rodent inspection: Failed for Rat Activity
2015-05-10311: Derelict Bicycle — 14B Derelict Bicycle
2015-05-10311: UNSANITARY CONDITION — GARBAGE/RECYCLING STORAGE
2015-05-10311: Sanitation Condition — 12 Dead Animals
2015-05-10311: Rodent — Condition Attracting Rodents
2015-05-10311: Rodent — Rat Sighting
2015-05-10311: Rodent — Rat Sighting
2015-05-10Tenant complaint: UNSANITARY CONDITION — GARBAGE/RECYCLING STORAGE
2015-02-23311: Snow — E9 Snow / Icy Sidewalk
2014
2014-08-21FDNY inspection (RISK)
2013
2013-11-14Permit EW — ISSUED
2013-11-14Permit PL — ISSUED
2013-10-28Job filed: RENOVATION OF APARTMENTS ON THIRD FLOOR. MINOR NON-LOADBEARING PARTITION CHANGES, NEW/RELOCATED PLUMBING FIXTURES. NO CHANGE IN USE, OCCUPANCY OR MEAN$86,500
2013-10-28Job filed: RENOVATION OF APARTMENTS ON THIRD FLOOR. MINOR NON-LOADBEARING PARTITION CHANGES, NEW/RELOCATED PLUMBING FIXTURES. NO CHANGE IN USE, OCCUPANCY OR MEAN$86,500
2012
2012-12-17311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2012-12-05Rodent inspection: Failed for Rat Activity
2012-11-27311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2012-11-14Rodent inspection: Failed for Rat Activity
2012-10-25311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2012-10-16TL&R — from CAPITAL ONE, NATIONAL ASSOCIATION
2012-10-16AL&R $3,700,000 — from 917 8TH AVENUE REALTY LLC; 229 FIFTH AVE. REALTY, INC. to INVESTORS BANK$3,700,000
2012-10-16Agreement $3,700,000 — from 917 8TH AVENUE REALTY LLC; 229 FIFTH AVE. REALTY, INC. to INVESTORS BANK$3,700,000
2012-10-16Mortgage $1,461,285 — from 229 FIFTH AVE. REALTY, INC.; 917 8TH AVENUE REALTY LLC to INVESTORS BANK$1,461,285
2012-10-16Mortgage assigned — from CAPITAL ONE, NATIONAL ASSOCIATION to INVESTORS BANK
2012-09-18Rodent inspection: Failed for Rat Activity and Other Reason
2011
2011-12-09311: Taxi Complaint — Driver Complaint
2011-08-19311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2011-08-13311: GENERAL CONSTRUCTION — STAIRS
2011-08-13Tenant complaint: GENERAL — STAIRS
2011-07-18311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2011-07-18311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2011-07-18311: Street Condition — Defective Hardware
2011-07-12311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2011-04-22311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2010
2010-08-06311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2010-06-11311: Sewer — Catch Basin Sunken/Damaged/Raised (SC1)
2008
2008-09-03TL&R — from NEW YORK COMMUNITY BANK; ROLSYN SAVINGS BANK to 917 8TH AVENUE REALTY LLC
2008-08-25Agreement $695,000 — from 917 8TH AVENUE REALTY LLC to CAPITAL ONE, N. A.$695,000
2008-08-25AL&R $695,000 — from 917 8TH AVENUE REALTY LLC to CAPITAL ONE, N. A.$695,000
2008-08-25Mortgage $134,203 — from 917 8TH AVENUE REALTY LLC to CAPITAL ONE, N. A.$134,203
2008-08-25Mortgage assigned — from NEW YORK COMMUNITY BANK, SUCCESSOR TO to CAPITAL ONE, N. A.
2004
2004-04-05DOB complaint, category ?
2003
2003-12-18AL&R — from 917 8TH AVENUE REALTY LLC to THE ROSLYN SAVINGS BANK
2003-12-18Mortgage $600,000 — from 917 8TH AVENUE REALTY LLC to THE ROSLYN SAVINGS BANK$600,000
2003-12-18DEEDO $910,000 — from KAGGEN, MARILYN; KAGGEN, ELIAS; KAGGEN MC CANN, LOIS to 917 8TH AVENUE REALTY LLC$910,000
1997
1997-06-05DOB violation LANDMRK:
1990
1990-07-31ECB Non-Hazardous violation: SMOKE STACK NOT PROPERLY SEALED INSTALL VENT TO OUTDOOR BOLTS CORRODED ON HOT WATER PLATE
1990-07-31ECB Non-Hazardous violation: 32, 46A BREECHING NOT PROPERLY SEALED TO STACK INSTALL STACK CLEANOUT DOOR AT BASE OF CHIMNEY INSTALL METAL SCREWS AT BREECHING SE
1981
1981-11-09Deed — from KAGGEN ELIAS to KAGGEN ELIAS; KAGGEN SYLVIA
1973
1973-09-04LDMK — from CITY OF NEW YORK; CITY OF NY LANDMARK PRESERVATION COMMISS; CITY OF NY; CITY OF N Y LANDMA

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