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412 12Th Ave

Inner Richmond, SF 94118 1533038 2 units · 3 fl · 1906

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
Above average
avg 0.9
7
FewerMore

This building has 7 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 412 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 1906
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
Floors3
Year built1906
Total area3,100 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1533038
Ownership

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

Owner name
Chan Family Tr Udt 8/16/03
Mailing address
David M & Letty Lh Chan Tte 412A 12Th Ave San Francisco CA 94118
Last sale
080118

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story multi-family residential building at 412 12th Avenue in San Francisco's Inner Richmond neighborhood is a duplex structure built in 1906, currently owned by the Chan Family Trust established in 2003. The most significant recorded issue was in June 2019, when building inspectors documented unsafe conditions with damaged decks on the second and third floors showing severe dry rot, though this violation is currently listed as not active with no recorded abatement date. The property has had minimal permit activity, with only one recorded street space permit issued in November 2010 at a nominal cost of $1.

Recent incident reports from 2020 through 2024 predominantly concern external issues unrelated to the building's internal conditions. These include multiple parking enforcement calls for vehicles blocking driveways (including three incidents in 2020, 2022, and 2023), general street cleaning matters, and two encampment-related incidents (in December 2017 and December 2024, though the latter was closed as "Unable to Locate"). There were also three cases of loose garbage requiring general cleaning in late 2019, none of which directly implicated the building's tenants or management in any violations. While the building's most serious documented issue was the deck safety concern from 2019, it is noteworthy that no recent building code violations have been recorded in the past four years, though this does not necessarily confirm resolution of the previous issues.

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

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Risk rating

How 412 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
21th percentile

Out of 1723 buildings in this neighborhood, 1361 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 66.3%
Moderate concern 28.5%
Severe concern 5.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

412 12Th Ave apartment reviews

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The story over time

412 12Th Ave event timeline

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

2024
311 Request Dec 26
Encampment
Encampment

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 412 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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