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E

Eliyohu Knopf

Shareholder·1 building·46 units
2.3

4 reviews

Highlights

1
Evictions
2
Litigation cases

About Eliyohu Knopf

Eliyohu Knopf is a modestly rated but responsible shareholder. Across their buildings, tenants rate them 2.3/5 across 4 reviews, with 0% recommending their buildings and 0% approving of them as an owner or associate. Their portfolio records 1 eviction, 11 open violations, and 2 litigation cases. Data last updated July 30, 2026. Across Borough Park in Brooklyn, Eliyohu Knopf is a shareholder associated with 1 building and 46 units. The portfolio is concentrated in Borough Park in Brooklyn. The building was constructed in 1929 and is categorized as a low-rise. All of the associated buildings have rent-stabilized apartments. Prospective renters can find building-level ratings, reviews, and open-data records on the associated building pages.

Renter recommendations

-%

Renters recommend associated buildings

-%

Renters approve of this owner or associate

Review summary

Summarized from anonymous rental reviews on Openigloo.

Recent tenant feedback for buildings managed by Eliyohu Knopf consistently points to significant maintenance and pest control issues. Despite some positives like spacious apartments and friendly superintendents, residents frequently report persistent roach and bedbug infestations, water leaks, mold, and slow or inadequate management response. Garbage management and cleanliness are also often rated poorly. While the landlord is described as personable, tenants feel the management is largely unresponsive to crucial repairs and pest problems. Prospective renters should expect ongoing challenges with upkeep and pest control, reflecting a pressing need for more proactive and professional building maintenance.

Reviews

Former tenant·15 minutes ago

Uncontrollable roach infestation and ceiling constantly leaking

Pros

This is a spacious pre war building and the landlord is objectively nice

Cons

This place has a raging roach infestation that will never be resolved. The ceiling leaks every time it rains and has caused significant water and mold damage they refuse to address.

Advice to the owners

Hire real professionals to fix the building before it falls apart

Former tenant·5 months ago

Pests and overall bare bones maintenance.

Pros

Large apartments. Friendly super and porter. Nice area and affordable rent.

Cons

Repeated bedbug episodes. Building management would treat, but just the bare minimum treatment. It became musical chairs of rotating apartments with bedbugs, since some tenants were not taking care of their apartments or would hide that they had a bedbug problem and lax treatment from management perpetuated the issue. This was several years back; hopefully, the situation has improved.

Advice to the owners

If you have bedbugs in a property, you must go after the issue in full force and educate your tenants to speak up when they have a problem. One apartments bedbug problem becomes the problem of all their neighbors. An infestation can really destroy the mental health and well being of someone living through it.

Buildings associated with ELIYOHU KNOPF

  • 4109 9 Ave
    Rent-stabilized

    4109 9 Ave

    2.3(4)

    Borough Park

4109 9 Ave
Rent-stabilized

4109 9 Ave

2.3(4)

Borough Park

Building ratings

Cleanliness

-

Trash management

-

Pest control

-

Water pressure

-

Heat

-

Neighbors

-

Noise levels

-

Owner responsiveness

-

Cleanliness

-

Trash management

-

Pest control

-

Water pressure

-

Heat

-

Neighbors

-

Noise levels

-

Owner responsiveness

-

Rents and deposits

-

Renters received their security deposits back

-

Electronic rent payments

Open violations

From past 10 years · Updated 5 days ago

Average violations per unit for this owner or associate is better than the city average.

Owner average0.23Violations per unit
NYC average0.81Violations per unit
6Class C
Immediately hazardous

Rodents, pest, mold, inadequate heat or hot water, defective building parts

4Class B
Hazardous

Smoke detector issues, inadequate lighting, no lighting for stairways

1Class A
Non-hazardous

No peephole on a door, no street number on the building, unlawful keeping of animals

0Class I
Missing info

Missing or non-compliant with administrative information orders or filings

FAQs

Eliyohu Knopf has an average tenant rating of 2.3 out of 5 across 4 reviews.

Buildings managed by Eliyohu Knopf average 0.23 open violations per unit, fewer than the citywide average of 0.81.

0% of tenants who reviewed buildings managed by Eliyohu Knopf would recommend living there.

Eliyohu Knopf owns or manages 1 building totalling 46 units.

Eliyohu Knopf has 1 recorded eviction across their portfolio.

0% of tenants who reviewed a building managed by Eliyohu Knopf approve of how it is run.

Eliyohu Knopf has not appeared on the NYC worst landlords list.

Eliyohu Knopf has 2 housing court litigation cases across their portfolio.

E

Eliyohu Knopf

Shareholder·1 building·46 units
2.3

4 reviews

Follow us

For renters

Apartments for rent in NYCRenting tips and resourcesVerified apartment listings in NYCBuildings and owners in NYCOwners in NYCNYC market analysis reports

For landlords

iglooIQListings quality policy

Trending neighborhoods

Apartments in AstoriaApartments in Bedford-StuyvesantApartments in BushwickApartments in ChelseaApartments in Financial DistrictApartments in SohoApartments in Upper East SideApartments in Upper West SideApartments in West VillageApartments in Williamsburg

NYC boroughs

Apartments in BronxApartments in BrooklynApartments in ManhattanApartments in QueensApartments in Staten Island

2-bedroom apartments

2-bedroom apartments in Bronx2-bedroom apartments in Brooklyn2-bedroom apartments in Manhattan2-bedroom apartments in Queens2-bedroom apartments in Staten Island

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© 2026 Openigloo Inc. All rights reserved.