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54-56 Williams Ave

Bayview, SF 94124 5410017 2 units · 2 fl · 1900

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Bayview — not a forecast
At or below average
avg 4.6
0
FewerMore

This building has 0 novs (7y), at or below the Bayview average of 4.6.

Rent & eviction protection

Is 54-56 Williams 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 1900
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1900
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1900
Total area1,992 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot5410017
Ownership

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

Owner name
Mailing address
608 5th Ave San Francisco CA 94118
Last sale
September 20, 2021

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

56 Williams Ave, San Francisco, CA 94124
54 Williams Ave, San Francisco, CA 94124
56 A Williams Ave, San Francisco, CA 94124
Augrented Insights
Initial analysis

The two-unit residential property at 54-56 Williams Avenue in Bayview, currently owned by the Tam/chow Family Trust, has undergone significant recent improvements, most notably the construction of a new 994-square-foot ADU (Accessory Dwelling Unit) completed in 2023-2024. This new structure, built under the California State ADU Program requirements, includes three bedrooms, two bathrooms, a kitchen, and modern amenities such as a 2-ton heat pump, electric water heater, and electric range. The ADU construction was accompanied by comprehensive plumbing and electrical upgrades, including the installation of new utilities and infrastructure to support the additional living space.

The building's maintenance history shows attention to basic upkeep, with a reroofing permit issued in 2001 for $6,500, though this permit eventually expired. Of particular note is the recent addition of a 2.835 kW solar panel system, installed in 2024, demonstrating an investment in sustainable energy infrastructure. The property has experienced several urban management challenges in the surrounding area, with a notable cluster of street cleaning and debris-related 311 calls between 2023 and 2025, including reports of human waste and general refuse on public sidewalks. There have also been multiple parking enforcement calls in the vicinity, with some resulting in citations, though these external issues do not directly reflect on the building's condition or management.

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

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Risk rating

How 54-56 Williams 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

Lower risk — safer than most nearby

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

Typical — about average for the neighborhood

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

Higher risk — riskier than most nearby

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

Neighborhood percentile
90thpercentile

Out of 382 buildings in this neighborhood, 38 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
72%
No DBI
violation
28%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month risk forecast
Moderate failure risk 28%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

54-56 Williams Ave apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

54-56 Williams Ave event timeline

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

2025
311 Request Aug 17
Parking on sidewalk
Parking Enforcement
311 RequestMay 14
Garbage and debris

See all 8 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 54-56 Williams Ave apartments

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

Side by side

How 54-56 Williams Ave compares to the neighborhood

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