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542-544 20Th Ave

Central Richmond, SF 94121 1562033 2 units · 2 fl · 1923

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 542-544 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 1923
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units2
Floors2
Year built1923
Total area3,553 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1562033
Ownership

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

Owner name
Wong Revoc Lvg Trust
Mailing address
Wong William V & Shirley L 39 Shore View Ave San Francisco CA 94121
Last sale
092413

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

544 20th Ave, San Francisco, CA 94121
542 20th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The Wong Revocable Living Trust owns this two-unit, two-story multi-family residential building located at 542-544 20th Avenue in San Francisco's Central Richmond neighborhood. Built in 1923, this flats and duplex-style property has undergone significant renovations in recent years, with major improvements documented through multiple building permits between 2011 and 2013. These renovations included comprehensive kitchen and bathroom remodels on both floors, creation of new bathrooms and playroom facilities, and extensive electrical and plumbing upgrades such as the installation of new water lines, laundry rooms, and underground piping. The building's infrastructure improvements continued with a reroofing project completed in 2000.

The property has experienced some external maintenance issues in recent years, with an open case from December 2021 regarding tree roots damaging the sidewalk, and several parking-related incidents including driveway blocking and sidewalk parking violations in 2019 and 2024. The 311 call log shows historical minor issues such as graffiti on a pole in 2011, though these appear to be isolated incidents. Two expired permits from 2001 for sidewalk work are on record, though their status suggests this work may have been completed without renewal. Overall, the building has been well-maintained through substantial recent renovations, with the majority of building permits marked as complete and focused on modernizing and improving the property's amenities and infrastructure.

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

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Risk rating

How 542-544 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
54th percentile

Out of 2250 buildings in this neighborhood, 1035 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Estimated permit spend (past 7 years)

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

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 80.8%
Moderate concern 13.5%
Severe concern 5.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

542-544 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 542-544 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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