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416 12Th Ave

Inner Richmond, SF 94118 1533036 2 units · 2 fl · 1915

This building has more problems than most buildings in this neighborhood. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 416 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 1915
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 built1915
Total area2,060 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1533036
Ownership

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

Owner name
Choy Randall & Zeng Jiali
Mailing address
1352 Union St San Francisco CA 94109
Last sale
080317

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 416 12th Avenue property is a two-unit, two-story multi-family residential building constructed in 1915, currently owned by Randall Choy and Jiali Zeng in San Francisco's Inner Richmond neighborhood. The building has undergone several significant renovations and faced multiple challenges over the past decades. Most critically, in May 2020, a serious complaint was filed regarding black mold, rotting walls and windows in the top apartment, which had reportedly been painted over. The property has also experienced recurring plumbing issues, with three documented sewage backup incidents in 2014-2015 and significant plumbing work carried out in 2010 including drainage improvements and bathroom renovations across multiple floors. In 2017, the building faced a violation regarding an unpermitted room constructed in the garage space, which was subsequently removed in 2018 to comply with fire department requirements.

The building's maintenance history shows regular upkeep, including a roof replacement in 2017 and various electrical and plumbing upgrades in 2010 such as a 200-amp service upgrade and the replacement of water heaters. However, the property has experienced some concerning issues, including the illegal construction of a garage unit (subsequently addressed), multiple sewage problems, and reports of water piping noise in 1997. Recent routine matters have included typical urban issues such as parking violations, street lighting maintenance, and graffiti removal, which were promptly addressed by city services. The building's ownership has maintained compliance with most city orders since 2017, though the mold issue reported in 2020 remains a notable concern in the property's recent history.

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

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Risk rating

How 416 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

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
24th percentile

Out of 1723 buildings in this neighborhood, 1309 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Building age

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

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

12-Month severity forecast
No violation 63.2%
Moderate concern 31.3%
Severe concern 5.6%
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

416 12Th Ave event timeline

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

2020
DBI Complaint May 26
Bottom apartment --duplex where top apartment has been deemed unlivable as it is being affected by black mold, walls and windows are rotting. mold in the apt. that has been painted over.
Housing Inspection Services

See all 1 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 416 12Th 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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