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123 12Th Ave

Lake Street, SF 94118 1372005 4 units · 2 fl · 1970

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. 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 Lake Street — not a forecast
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 123 12Th 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 1970
2 or more units
4 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 1970
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
Units4
Floors2
Year built1970
Total area4,054 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1372005
Ownership

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

Owner name
Mailing address
Robert Lau 123 12Th Ave Apt 1 San Francisco CA 94118
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 123 12th Avenue in the Lake - The Presidio neighborhood, owned by Jennifer Lau Wong, was constructed in 1970 and has undergone several notable events in its history. The building experienced a significant series of fire safety violations in August 2001, which included issues with smoke detectors in the lobby and stairwell, fire extinguisher maintenance, fire proofing materials, and the need for a gas utility shutoff tool. All these violations were abated by December 6, 2001. Subsequently, a routine inspection in May 2008 identified additional fire safety concerns, including the need for smoke enclosure door closers and directional signs, along with some plumbing and electrical requirements; these issues were resolved by July 15, 2008. A water heater upgrade was completed in May 2008 for Unit 1, involving seismic bracing and raising the unit to 18 inches above the floor.

More recent history shows some ongoing maintenance and quality-of-life issues around the property, including three reports of dog barking noise between 2015 and 2023, a noise complaint about amplified sound electronics in 2019, and several reports of abandoned vehicles in the vicinity between 2015 and 2017. The building also had instances of graffiti in July 2015, which was documented and resolved. Fire-related incidents on record include two false alarms - one involving a carbon monoxide detector malfunction - but notably, neither incident resulted in civilian injuries. A roofing project was undertaken in 1990, though that permit has since expired. The building's recent history has been relatively stable, with no active violations or complaints relating to major safety systems as of the latest records available.

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

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Risk rating

How 123 12Th 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
55thpercentile

Out of 660 buildings in this neighborhood, 297 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
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.

Number of units

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

Neighborhood location

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

Estimated permit spend (past 7 years)

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

12-Month risk forecast
Low failure risk 15%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

123 12Th Ave apartment reviews

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On the map

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The story over time

123 12Th 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 123 12Th Ave apartments

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

Side by side

How 123 12Th Ave compares to the neighborhood

This building against comparable properties in Lake Street. Toggle filters to narrow the peer group.

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

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