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467 20Th Ave

Central Richmond, SF 94121 1524011 4 units · 2 fl · 1975

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 467 20Th 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 1975
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 built1975
Total area4,046 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1524011
Ownership

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

Owner name
Chan Yuet Ngor Residuary By
Mailing address
24 Sylvan Dr San Francisco CA 94132
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 4-unit, 2-story multi-family residential building at 467 20th Ave in San Francisco's Central Richmond district was constructed in 1975 and is currently owned by Chan Yuet Ngor Residuary. The property has undergone several maintenance and safety improvements over the years, most notably including a house trap replacement in 2017, though this work was categorized under plumbing rather than general building maintenance.

The building experienced a significant cluster of fire safety violations in October 2002, when multiple citations were issued regarding fire extinguisher maintenance, combustible storage, fire sprinklers, and the installation of smoke detectors in critical areas such as the lobby and stairs. Additionally, violations were noted regarding gas utility shutoff tools. These issues were promptly addressed and formally abated by December 2002, demonstrating responsive remediation to safety concerns. More recent history shows only routine inspections in 2010 and a couple of parking-related incidents in 2019, including one case that resulted in a citation for sidewalk parking. There was also a graffiti incident reported in January 2019 that was resolved, though the building's specific involvement in these neighborhood issues is unclear. The only documented building-specific maintenance work was a reroofing project initiated in 1995, though records show this permit has long since expired.

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

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Risk rating

How 467 20Th 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
89th percentile

Out of 2250 buildings in this neighborhood, 248 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
91%
No DBI
violation
9%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Owner's portfolio size

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

12-Month severity forecast
No violation 75.4%
Moderate concern 14.1%
Severe concern 10.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

467 20Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 467 20Th Ave apartments

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

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

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