850 Flatbush Avenue
This building has a substantial enforcement record over the last seven years, and our model predicts continuing maintenance failures over the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.
This building has 145 recorded HPD violations, above the Flatbush average of 87.3.
The 850 Flatbush Avenue building, an 8-story structure built in 1931 with 21 units, is currently owned by Aliran LLC and has experienced numerous maintenance and safety issues over the past several years. The property has accumulated substantial violation and complaint history, including 34 Class A violations, 97 Class B violations, and 48 Class C violations between 2016-2023, along with 171 housing complaints and 150 311 service requests. Recent issues in September 2026 in Apartment 3B have particularly raised concerns, including reports of electrical hazards from exposed wiring, pest infestations, water fixture problems, flooring damage, and window maintenance needs - all of which were documented as either hazardous or immediately hazardous violations during a September 2026 inspection.
AI-generated · may contain errors · check the source data tables below
What's in the 850 Flatbush Avenue report
Is 850 Flatbush Avenue rent-stabilized?
Rent stabilization caps how much your rent can rise and protects your right to renew. Here's how this building scores on the four signals that usually point to it.
Based on public NYC records. Not legal advice — verify with the DHCR (Division of Housing and Community Renewal) at apps.hcr.ny.gov.
Is 850 Flatbush Avenue covered by Good Cause Eviction?
New York's Good Cause Eviction law (effective April 20, 2024) gives many market-rate tenants the right to renew their lease and challenge rent hikes above the annual local rent standard. It doesn't apply to every building.
Good Cause also excludes condos & co-ops, subsidized/regulated housing, and units renting above 245% of Fair Market Rent — signals we can't always confirm from public data. Not legal advice. Learn more at nyc.gov or call 311 for the Tenant Helpline.
How 850 Flatbush Avenue's risk score is calculated
We trained a model on 7 years of city inspection data — HPD violation filings, tenant complaints, and owner track records across their entire portfolio. It estimates the probability that HPD inspectors will find serious or dangerous violations at this address in the next 12 months. Lower % = safer.
What the score means for you
Out of 1399 buildings in this neighborhood, 237 have a higher predicted risk. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.
in the next 12 months
What's driving this score
These are the three data points that most influenced this building's score — ranked by how much weight the model placed on each one.
Don't stop here — this is just the surface.
The full report adds 30+ data sets, complete violation history, landlord portfolio and court record. Or keep reading free:
| Total units | 21 |
|---|---|
| Floors | 8 |
| Year built | 1931 |
| Gross area | 19,613 sq ft |
| Building class | — |
| Tax abatement | None |
Violations & complaints per year — solid line is historical record, dashed line is AI projection.
Included addresses
All street addresses that share this building's BBL and are covered by this report.
850 Flatbush Avenue's landlord & ownership
The people and companies registered to this building, the other properties they run, and their court record. A landlord's wider portfolio is often the best predictor of how your building will be treated.
Filed Jun 25, 2025, expired Sep 1, 2026 .
The registration on file expired Sep 1, 2026. HPD requires owners of most rental buildings to re-register every year.
City records, not real time — sale and registration data are as fresh as the last extract loaded; the ACRIS deed record above is good through Jul 31, 2015.
Registered contact for this building.
Brooklyn, NY 11229
Other properties owned.
850 Flatbush Avenue's mortgage & ownership history
Deeds, mortgages, assignments and satisfactions recorded against this property with the NYC Automated City Register Information System (ACRIS) — the public paper trail behind who owns it and who has lent against it.
5 records on file
Create a free account to see this building's deeds, mortgages, assignments and satisfactions — who owns it and who has lent against it.
Create free accountSourced from NYC ACRIS recorded documents. Amounts reflect the mortgage or transfer amount stated on the recorded document, not necessarily the property's market value.
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850 Flatbush Avenue event timeline
Violations, complaints, fines, and permits — the most recent records on file, in order.
See all 21 events
Full history back to 2022 — violations, complaints, permits, bedbug filings, and more.
Unlock full timelineFull data for 850 Flatbush Avenue apartments
30+ public city datasets for this address — searchable and sortable.
What this is
Housing code violations issued by HPD against property conditions. Non-compliance with NYC's Housing Maintenance Code can result in violations and fines.
| Inspection Date | Class | Category | Description | Status |
|---|---|---|---|---|
| 09/08/2026 | B | Original | § 27-2026 Adm Code Repair The Leaky And/Or Defective Faucets At Sink In The Kitchen Located At Apt 3B, 3Rd Story, 1St Apartment From North At East | Nov Sent Out |
| 09/08/2026 | C | Original | Hmc Adm Code: § 27-2017.4 Abate The Infestation Consisting Of Mice In The Entire Apartment Located At Apt 3B, 3Rd Story, 1St Apartment From North At East | Notice Of Issuance Sent To Tenant |
| 09/08/2026 | B | Original | § 27-2005 Hmc: Properly Repair Or Replace The Broken Or Defective Handles To Open And Close Window, At Lower Window Sash At North Wall In The 2Nd Room From East At North Located At Apt 3B, 3Rd Story, 1St Apartment From North At East | Nov Sent Out |
| 09/08/2026 | C | Original | § 27-2005 Adm Code Properly Repair With Similar Material The Broken Or Defective Hardwood Floor In The Kitchen Located At Apt 3B, 3Rd Story, 1St Apartment From North At East | Nov Sent Out |
| 09/08/2026 | B | Original | § 27-2026 Adm Code Repair The Leaky And/Or Defective Faucets At Wash Basin In The Bathroom Located At Apt 3B, 3Rd Story, 1St Apartment From North At East | Nov Sent Out |
What this is
Complaints filed with HPD about conditions violating the NYC Housing Maintenance Code or NY State Multiple Dwelling Law.
| Received | Category | Type | Status | Apartment |
|---|---|---|---|---|
| 09/02/2026 | Plumbing – Bathtub/Shower | Non Emergency | Close | 3B |
| 09/02/2026 | Flooring/Stairs – Floor | Non Emergency | Close | 3B |
| 09/02/2026 | Door/Window – Window Frame | Emergency | Close | 3B |
| 09/02/2026 | Plumbing – Basin/Sink | Non Emergency | Close | 3B |
| 09/02/2026 | Door/Window – Door | Emergency | Close | 3B |
What this is
Service requests logged daily with the city through 311 and tracked to resolution. These are complaints that can be directed to specific city agencies.
| Created Date | Problem | Problem Detail | Agency Name | Status |
|---|---|---|---|---|
| 09/03/2026 | Unsanitary Condition | Pests | Department of Housing Preservation and Development | Open |
| 09/02/2026 | Plumbing | Basin/Sink | Department of Housing Preservation and Development | Closed |
| 09/02/2026 | Plumbing | Bathtub/Shower | Department of Housing Preservation and Development | Closed |
| 09/02/2026 | Unsanitary Condition | Pests | Department of Housing Preservation and Development | Closed |
| 09/02/2026 | Door/Window | Door | Department of Housing Preservation and Development | Closed |
What this is
All complaints received by the Department of Buildings, including those from 311 and complaints entered directly by DOB staff.
| Filed | Number | Status | Category | Disposition |
|---|---|---|---|---|
| 02/21/2024 | 3948234 | Closed | 59 | 02/23/2024 |
| 02/07/2024 | 3946580 | Closed | 30 | 02/08/2024 |
What this is
Civil penalties and violation notices issued by the Department of Buildings for construction and building code violations.
| Issue Date | Category | Type | Description | Disposition |
|---|---|---|---|---|
| 02/22/2024 | V-Dob Violation - Active | Fispnrf-No Report And / Or Late Filing (Facade) Facade Required | Failed To File Fisp Cycle 9C Technical Report By 2/21/2024 |
What this is
Summonses and penalties adjudicated by OATH (Office of Administrative Trials & Hearings) and the Environmental Control Board. DOB enforcement cases that have been heard and decided.
| Issue Date | Violation # | Status | Description | Penalty |
|---|---|---|---|---|
| 04/08/2025 | 37034999K | Active | Failure To Submit An Acceptable Required Cycle 9C Report Of Critical Examination Documenting Condition Of Exterior Wall And Appurtenances Required By 28-302.4 For Control #917760. Remedy: Submit Acceptable Requ | $2,500 |
| 02/08/2024 | 39105581L | Resolve | At Time Of Inspection Observed At Exp.1 Corner Of 7Th Floor Balcony (Left Side) Panel Not Properly Installed, Bumped Out At One Corner., Maintain Exterior Building Wall | $0 |
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Executed eviction warrants in NYC from 2017-present. Records of completed residential and commercial evictions processed through housing court.
| Executed Date | Docket # | Apartment | Type | Marshal |
|---|
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Recorded real estate transactions and property sales. Public records of building transfers and changes in ownership.
| Sale Date | Price | Building Class | Neighborhood | Apartment |
|---|
What this is
Property owner reports of bedbug infestation status required by NYC law. Building owners must file annual reports on bedbug treatment and infestation history.
| Filing Date | Infested Units | Eradicated | Re-infested | Period End |
|---|---|---|---|---|
| 05/11/2026 | 0 | 0 | 0 | 10/31/2025 |
| 07/29/2025 | 0 | 0 | 0 | 10/31/2024 |
What this is
NYC Department of Health & Mental Hygiene rodent inspection results. Records of inspections for rat and rodent infestation signs.
| Inspection Date | Type | Result |
|---|
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Construction and demolition permits issued by the Department of Buildings. Required for legal building, construction, and demolition activities in NYC.
| Filing Date | Type | Work | Floor | Description | Status | Issued |
|---|---|---|---|---|---|---|
| 09/09/2022 | Renewal Permit Without Changes | General Construction | Floor Number(s) 001 through 001 | Interior Renovation On 1St Floor Exiting Use Group 6 For A Outpatient Medical Clinic (Ug 6) Tenant Build-Out - No Change In Use, Occupancy Or Egress -Plumbing Filed Under B00717154-S1 & Sprinkler Filed Under B00717154-S2 | Signed-Off | 09/09/2022 |
| 09/02/2022 | Initial Permit | Sprinklers | Floor Number(s) 001 through 001 | Addition And Modification To Existing Sprinkler System For 1St Floor Tenant Build Out In Conjunction With Dobnow #B00717154-I1 | Signed-Off | 09/02/2022 |
| 09/02/2022 | Initial Permit | Plumbing | Floor Number(s) 001 through 001 | Filing Plumbing Work In Conjunction With Dobnow #B00717154-I1 | Signed-Off | 09/02/2022 |
| 08/18/2022 | Initial Permit | Sign | Facade | Erect Non Illuminated Non Advertising Sign On Wall. No Change Of Use, Egress Or Occupancy | Signed-Off | 08/18/2022 |
| 08/18/2022 | Initial Permit | Sign | Facade | Erect Illuminated Non Advertising Sign On Wall. No Change Of Use, Egress Or Occupancy | Signed-Off | 08/18/2022 |
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