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351-353 12Th Ave

Inner Richmond, SF 94118 1444010 2 units · 2 fl · 1913

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 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 351-353 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 1913
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1913
Total area3,549 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1444010
Ownership

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

Owner name
Yan Lap Yen
Mailing address
353 12th Ave San Francisco CA 94118
Last sale
032718

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.

353 12th Ave, San Francisco, CA 94118
351 12th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 351-353 12th Avenue is a 2-unit, 2-story multi-family residential building located in San Francisco's Inner Richmond neighborhood. Built in 1913 and owned by Yan Lap Yen, this flats/duplex building has undergone significant renovations in recent years. A substantial modernization project was completed in 2016-2017, involving the construction of new spaces including three bedrooms, a home office, storage room, and two half bathrooms on the ground floor, along with upgrades to the basement including new plumbing fixtures, laundry facilities, and electrical systems. The building's mechanical systems were also improved during this period with a furnace replacement and complete electrical upgrade including new wiring, lighting, switches, receptacles, and smoke detectors.

The property has experienced some notable issues requiring attention, particularly in early 2012 when multiple violations were recorded for Unit #351, including problems with ventilation, mold/mildew, and interior paint conditions potentially presenting lead hazards. These violations were officially abated by March 2012. More recent concerns include a 2018 complaint about construction activity occurring during early morning hours, and multiple building maintenance issues documented through 311 calls. The building's infrastructure has received regular attention, including a new bitumen roof installation in 2017 (cost: $8,000) and several plumbing and electrical upgrades. The property's rear yard/open space requirements have been maintained, and recent planning records indicate improvements including bike parking installation and an expansion at the rear of the building, while confirming that the ground floor may not be used for short-term rentals due to its configuration.

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

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Risk rating

How 351-353 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
47th percentile

Out of 1723 buildings in this neighborhood, 913 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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.

Building age

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

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.

12-Month severity forecast
No violation 78.5%
Moderate concern 16.7%
Severe concern 4.7%
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

351-353 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 351-353 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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