Free SF apartment background check

442 23Rd Ave

Central Richmond, SF 94121 1522029A 4 units · 2 fl · 1971

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Richmond
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 442 23Rd Ave rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1971
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units4
Floors2
Year built1971
Total area3,904 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1522029A
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Owner name
Kong Kevin
Mailing address
442 20th Ave Apt 4 San Francisco CA 94121
Last sale
051018

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

Unlock complete report
Augrented Insights
Initial analysis

The two-story multi-family residential building at 442 23rd Ave in the Central Richmond neighborhood, owned by Kevin Kong, was constructed in 1971 and contains 4 units. The property has undergone several significant improvements over the past two decades, with the most recent major work including a physical inspection compliance response in 2021 and a reroofing project in 2019 costing nearly $20,000. The building has seen substantial unit-specific renovations, particularly in 2016 when Unit #4 received kitchen and bathroom remodels, along with electrical updates totaling $22,000. The property has maintained its basic infrastructure through various upgrades, including furnace and water heater installations in 2020, window replacements, and several plumbing improvements such as kitchen and bathroom fixture updates across multiple units between 2004 and 2016.

Historical records show several building violations and complaints between 2000 and 2004 related to safety and maintenance issues, including fire safety concerns, plumbing problems, and pest control. However, all these violations were addressed and abated by May 2000. The building underwent a routine apartment housing inspection in 2008 and has since maintained a relatively clean record, with no active violations in recent years. Infrastructure maintenance has been consistent, with multiple claims made for electrical, plumbing, and general building upkeep documented through permits. The property is currently listed for condo conversion, with planning records showing an approved application for condominium conversion for all four units. Recent inspections and 311 calls regarding the property have primarily concerned external issues such as street cleaning and parking enforcement, rather than building-specific problems.

AI-generated · may contain errors · check the source data tables below

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 442 23Rd Ave's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
79th percentile

Out of 2250 buildings in this neighborhood, 472 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

Property class: tenancy in common

Tenancy-in-common ownership structure, which has distinct maintenance and management patterns.

12-Month severity forecast
No violation 81.5%
Moderate concern 11.0%
Severe concern 7.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

442 23Rd Ave apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
The story over time

442 23Rd Ave event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2025
311 Request Aug 20
Abandoned vehicle
Parking Enforcement

See all 7 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 442 23Rd Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

Watch 442 23Rd Ave
Get alerted the moment a new violation or complaint is filed.