Higher is better. Based on 26 data sources across violations, complaints, permits, sales, and legal records.
High Confidence
This building is in good shape with only minor issues on record
Minor issues on record. Review the details below, but no major concerns.
450 Riverside Drive is an elevator apartment building built in 1909 in Manhattan with 31 residential units. It holds a Grade B health score — most influenced by management quality — with 5 open HPD violations. Our analysis reviewed 189 records across 26 public data sources, benchmarked against similar large prewar residential buildings in NYC.
Know this building? Does this grade feel right?
Get alerted when this building changes
Create a free account to save buildings to your watchlist and get alerts when grades change.
vs Neighborhood (10027)
1,672 buildings in this zip code
40th
Better than 40% of buildings in 10027
Average
Avg score: 73
WorstBest in 10027
Alerts
Bedbug Infestation Reported
Bedbug infestations have been officially reported in this building within the past 2 years.
Score Breakdown
Living ConditionsBased on housing violations — things like heat, hot water, pests, mold
98Excellent
Building SafetyStructural issues, fire safety, elevator problems, code violations
74Fair
Complaint BurdenHow often residents call 311 or file complaints about this building
99Excellent
Management QualityHow quickly the owner fixes problems and maintains the building
70Fair
Financial HealthTax liens, water debt, unpaid city charges
No issues
Legal & EnforcementCity lawsuits and legal actions against the building owner
100Excellent
Maintenance HistoryBoiler, facade, and routine upkeep inspection records
↑Improving — 0 violations this year vs 1 last year
No sale or transaction records found for this property.
No tax liens found for this property.
No litigation records found for this property.
Complete record of violations, complaints, permits, and other events for this building, newest first.
Medium Priority (1)
hpd bedbug
Apr 26, 2024• 1 year ago
Eradicated
Bedbug infestation: 1 unit affected
Infested Units: 1
Eradicated Units: 1
Re Infested Units: 0
Total Units: 32
Filing Period Start: Nov 1, 2022
Filing Period End: Oct 31, 2023
Low Priority (1)
Housing Violation
Apr 1, 2024• 2 years ago
DISMISSED
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 HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.
Class: A
Status: VIOLATION DISMISSED
Nov Type: Original
Issued Date: Apr 1, 2024
Cure By Date: Jul 5, 2024
Status Date: Apr 29, 2024
Informational (11)
Tax Record
Jan 1, 2027• Today
Assessed
Tax Year 2027 Market Value: $4,904,000 Exemptions: $2,184,732
Owner: TRUSTEES OF COLUMBIA UNIVERSITY
Year Built: 1,909
Building Class: D3
Gross Area: 58,840 sqft
Units: 32
Stories: 10
Zoning: R8
Assessed Value: $2,206,800
Market Value: $4,904,000
Tax Record
Jan 1, 2026• 3 months ago
Assessed
Tax Year 2026 Market Value: $4,695,000 Exemptions: $2,091,623
Owner: TRUSTEES OF COLUMBIA UNIVERSITY
Year Built: 1,909
Building Class: D3
Gross Area: 58,840 sqft
Units: 32
Stories: 10
Zoning: R8
Assessed Value: $2,112,750
Market Value: $4,695,000
hpd bedbug
Dec 4, 2025• 4 months ago
Filed
Annual bedbug filing — no infestations reported
Filing Period Start: Nov 1, 2024·Filing Period End: Oct 31, 2025
Registration
Oct 23, 2025• 5 months ago
Registered
HPD registration filed
Registration Ends: Sep 1, 2026·Last Registration: Oct 23, 2025
Rent Stabilized
Oct 23, 2025• 5 months ago
Expires 2026-09-01
Rent stabilization registration
Registration Ends: Sep 1, 2026
Tax Record
Jan 1, 2025• 1 year ago
Assessed
Tax Year 2025 Market Value: $4,126,000 Exemptions: $1,838,133
Owner: TRUSTEES OF COLUMBIA UNIVERSITY
Year Built: 1,909
Building Class: D3
Gross Area: 58,840 sqft
Units: 32
Stories: 10
Zoning: R8
Assessed Value: $1,856,700
Market Value: $4,126,000
ll84 energy
Dec 31, 2024• 1 year ago
Energy benchmark — Score: 100
Energy Star: 100·Report Year: 2024
ll84 energy
Dec 31, 2024• 1 year ago
EFFICIENT
Energy benchmark — Score: 100
Energy Star: 100
GHG Emissions (MT CO₂): 4.08
Site Energy (kBtu): 466,454.4
Floor Area: 59,115 sqft
Property Type: Multifamily Housing
Report Year: 2024
hpd bedbug
Dec 18, 2024• 1 year ago
Filed
Annual bedbug filing — no infestations reported
Filing Period Start: Nov 1, 2023·Filing Period End: Oct 31, 2024
hpd bedbug
Dec 18, 2024• 1 year ago
Filed
Annual bedbug filing — no infestations reported
Filing Period Start: Nov 1, 2023·Filing Period End: Oct 31, 2024
Tax Record
Jan 1, 2024• 2 years ago
Assessed
Tax Year 2024 Market Value: $3,889,000 Exemptions: $1,732,550
Owner: TRUSTEES OF COLUMBIA UNIVERSITY
Year Built: 1,909
Building Class: D3
Gross Area: 58,840 sqft
Units: 32
Stories: 10
Zoning: R8
Assessed Value: $1,750,050
Market Value: $3,889,000
Other Events (7)
Inspection
Sep 26, 2025• 6 months ago
Passed
Initial (Job PC8607881)
Type: Initial
Result: Passed
Job: PC8607881
Approved: Sep 29, 2025
Water Tank Inspection
May 20, 2025• 10 months ago
Y
Water tank inspection
Coliform: A
E. coli: A
Inspected: Y
Sample Collected: Y
Inspector: ISSEKS BROS INC
Year: 2025
Tank #: 1
Inspection
Mar 20, 2025• 1 year ago
Passed
Initial (Job PC8506055)
Type: Initial
Result: Passed
Job: PC8506055
Approved: Mar 24, 2025
Inspection
Sep 16, 2024• 1 year ago
Passed
Initial (Job PC8408366)
Type: Initial
Result: Passed
Job: PC8408366
Approved: Sep 18, 2024
Water Tank Inspection
May 6, 2024• 1 year ago
Y
Water tank inspection
Coliform: A
E. coli: A
Inspected: Y
Sample Collected: Y
Inspector: ISSEKS BROS INC
Year: 2024
Tank #: 1
Code Violation
Apr 11, 2024• 1 year ago
ACTIVE
Local Law: FAILURE TO SUBMIT AN ACCEPTABLE REQUIRED CYCLE 9B REPORT OF CRITICAL EXAMINATION DOCUMENTING CONDITI — $1,250 penalty
Type: Local Law
ECB Status: ACTIVE
Severity: CLASS - 2
Penalty: $1,250
Amount Paid: $1,280
Balance Due: $0
Hearing: IN VIOLATION
Respondent: TRUSTEES OF COLUMBIA UNIV
Law: 28-302.4 FAILURE TO SUBMIT A REQUIRED REPORT OF CRITICAL EXAMINATION DOCUMENTIN
This report is an informational tool based on publicly available government records and does not constitute a “consumer report” under the Fair Credit Reporting Act. Building grades are editorial opinions and should not be used as the sole basis for housing, lending, or employment decisions. Data sourced from HPD, DOB, DOF, ECB, FDNY, 311, and other NYC agencies. Report errors to data@openstoop.com. See our Terms and Privacy Policy.