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791 Lexington Avenue, Manhattan

📍 Upper East Side, Manhattan Built 1910 7 units Class C7 Residential
Registered to MAGDALENA KOSZ Corporation HPD registration · updated monthly
CRITICAL RISK
11 Open Violations
6C 5B
5 Complaints (12 mo) ↓ down vs prior year
0 Last 30 Days
Renting here? This building has 6 unresolved immediately-hazardous violations — ask the landlord what's being done about them before you sign.

311 Complaint Summary

0
Last 30 Days
0
Last 90 Days
5
Last 365 Days
✅ Complaints are down 100% compared to the previous 6 months.
🐀 9 pest infestation complaints filed with HPD since 2024
Complaint Types (Last 12 Months)
UNSANITARY CONDITION
4(80%)
FLOORING/STAIRS
1(20%)
📅 Monthly Activity Heatmap (Last 12 Months)
Aug
Sep
Oct
Nov
Dec
Jan
Feb
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Apr
May
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Jul

Source: NYC 311 / HPD · Synced daily · Covers HPD-managed residential buildings · Records from Jan 2024 onward

DOHMH Rat Inspection History

10 Inspections on Record
Passed Most Recent Result
2019-12-17 Most Recent Date
2019-12-17 Initial Passed
2018-12-12 Initial Passed
2018-05-16 Initial Passed
2017-04-13 Initial Passed
2016-05-17 Initial Passed
2012-07-13 Initial Passed
2011-11-04 Initial Passed
2010-10-15 Initial Passed
2009-11-13 Compliance Passed
2009-10-08 Initial Failed for Rat Activity

Source: NYC DOHMH Rodent Inspections · Synced daily (30-day lookback) · Inspections may cover the building's block, not the exact address · DOHMH data publishes with ~10-day lag

HPD Housing Violations

0 Class A
5 Class B
6 Class C
Driving this immediately hazardous rating
Class C Active roach infestation 2025-09-03
Class C Building door missing or defective self-close mechanism 2025-09-03
See all 11 violations ▼
Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 5R, 5th STORY, 1st APARTMENT FROM NORTH AT EAST
2025-09-03 ▼

Violation ID: #18203372

Current Status: Open

Date Issued: 2025-09-03T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 5R, 5th STORY, 1st APARTMENT FROM NORTH AT EAST

Class C § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 5R, 5th STORY, 1st APARTMENT FROM NORTH AT EAST
2025-09-03 ▼

Violation ID: #18203373

Current Status: Open

Date Issued: 2025-09-03T00:00:00.000

Description: § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 5R, 5th STORY, 1st APARTMENT FROM NORTH AT EAST

Class C § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES AT EGRESS DOOR AT EAST WALL IN THE 1st ROOM FROM EAST AT SOUTH LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
2025-08-30 ▼

Violation ID: #18197146

Current Status: Open

Date Issued: 2025-08-30T00:00:00.000

Description: § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES AT EGRESS DOOR AT EAST WALL IN THE 1st ROOM FROM EAST AT SOUTH LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Class C § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING IN THE 1st ROOM FROM EAST AT NORTH LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
2025-08-30 ▼

Violation ID: #18197144

Current Status: Open

Date Issued: 2025-08-30T00:00:00.000

Description: § 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING IN THE 1st ROOM FROM EAST AT NORTH LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Class C HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
2025-08-30 ▼

Violation ID: #18197142

Current Status: Open

Date Issued: 2025-08-30T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF ROACHES IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Class C § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
2025-08-30 ▼

Violation ID: #18197143

Current Status: Open

Date Issued: 2025-08-30T00:00:00.000

Description: § 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HINGES IN THE ENTRANCE LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Class B HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF BEDBUGS IN THE ENTIRE APARTMENT LOCATED AT APT 5R, 5th STORY, 1st APARTMENT FROM NORTH AT EAST
2025-09-03 ▼

Violation ID: #18203371

Current Status: Open

Date Issued: 2025-09-03T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF BEDBUGS IN THE ENTIRE APARTMENT LOCATED AT APT 5R, 5th STORY, 1st APARTMENT FROM NORTH AT EAST

Class B § 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
2025-08-30 ▼

Violation ID: #18197140

Current Status: Open

Date Issued: 2025-08-30T00:00:00.000

Description: § 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Class B § 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
2025-08-30 ▼

Violation ID: #18197141

Current Status: Open

Date Issued: 2025-08-30T00:00:00.000

Description: § 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Class B § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE BASE CABINET SINK AT SOUTH WALL IN THE KITCHEN LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH
2025-08-30 ▼

Violation ID: #18197145

Current Status: Open

Date Issued: 2025-08-30T00:00:00.000

Description: § 27-2005 HMC: PROPERLY REPAIR OR REPLACE THE BROKEN OR DEFECTIVE BASE CABINET SINK AT SOUTH WALL IN THE KITCHEN LOCATED AT APT 3R, 3rd STORY, 1st APARTMENT FROM WEST AT NORTH

Class B HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF BEDBUGS IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, 1st APARTMENT FROM WEST AT NORTH
2024-03-11 ▼

Violation ID: #16741109

Current Status: Open

Date Issued: 2024-03-11T00:00:00.000

Description: HMC ADM CODE: § 27-2017.4 ABATE THE INFESTATION CONSISTING OF BEDBUGS IN THE ENTIRE APARTMENT LOCATED AT APT 4R, 4th STORY, 1st APARTMENT FROM WEST AT NORTH

⚠️ What does Class C mean?

Class C violations are classified as immediately hazardous by the HPD (e.g. lack of heat or hot water, active mold, severe rodent infestations, lead-based paint, or carbon monoxide detector issues). Landlords are legally required to resolve these immediately.

Source: NYC HPD Housing Violations · Synced daily · Open violations only — closed violations excluded · Class I (administrative/registration notices) excluded from counts

What This Means If You're Considering Renting Here

This building has 6 Class C (immediately hazardous) violations currently open — the most serious HPD category. With 5 complaints filed in the last 12 months, prospective renters should exercise significant caution, request a full HPD inspection history, and consult a tenant rights organization before signing any lease.

Data current as of July 10, 2026. Always verify independently with HPD before signing a lease.

Data Disclaimer: All compliance data on this page is synced directly from municipal reports published via NYC Open Data. Complaint counts and HPD housing violations are updated daily. Building characteristics (built year, unit count, and building class) are derived from the NYC Department of City Planning's PLUTO database.

Data last updated: July 10, 2026 · Source: NYC Open Data

⚠️ Serious Concerns Found

This building has 5 complaints and 6 Class C (immediately hazardous) violations on record in the last 12 months. Review the full violation list carefully before signing any lease.

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About This Data

Complaint data is sourced from the NYC 311 Service Requests dataset (NYC Open Data). Violation data is from the HPD Housing Maintenance Code Violations dataset. Building info is based on NYC PLUTO by NYC Department of City Planning.

All records are public-domain municipal data provided as-is. Updated daily. Last verified: July 10, 2026.