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431-433 12Th Ave

Inner Richmond, SF 94118 1532005 2 units · 2 fl · 1922

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 431-433 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 1922
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 built1922
Total area3,160 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1532005
Ownership

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

Owner name
Wong Lisa
Mailing address
2739 40th Ave San Francisco CA 94116
Last sale
042617

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.

433 12th Ave, San Francisco, CA 94118
431 12th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-unit residential building at 431-433 12th Avenue in San Francisco's Inner Richmond district is a 2-story flats and duplex structure built in 1922, currently owned by Lisa Wong. The property has undergone significant recent improvements, with substantial interior renovations completed in 2023 including work on the kitchen, dining room, living room, bedrooms, bathroom, and powder room, following an earlier bathroom and kitchen upgrade in late 2022 that involved tile, cabinets, and countertops improvements, with a reported cost of $70,000. Historical records show earlier improvements from the late 1980s, including aluminum window installation in 1988 and termite repairs in 1989, though the latter permit expired.

The building's maintenance history shows attention to infrastructure needs, particularly during the 2012 addressing of a lifted sidewalk defect, which was resolved through proper inspections and repairs. Recent years have been marked by several parking-related incidents near the property, with multiple 311 calls regarding driveway blocking and abandoned vehicles between 2019 and 2024, though these were external matters not directly related to the building's condition or management. The most recent parking enforcement call in November 2024 was unable to locate the vehicle in question. The property has no recorded tenant buyouts, and the building's recent renovation history suggests ongoing investment in maintaining and updating the property for current standards.

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

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Risk rating

How 431-433 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
92th percentile

Out of 1723 buildings in this neighborhood, 138 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
91%
No DBI
violation
9%
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.

NOV rate, owner's portfolio

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

DBI complaints, owner's portfolio

Complaints across all of this owner's buildings over 7 years.

12-Month severity forecast
No violation 90.2%
Moderate concern 7.8%
Severe concern 2.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

431-433 12Th Ave apartment reviews

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The story over time

431-433 12Th Ave event timeline

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

2025
Building Permit Aug 22
Updating the bathroom and kitchen. no wall removal or layout change.
$50,000 · Issued
Tenant BuyoutMay 27
Tenant buyout · $33,000

See all 5 events

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

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Every record we have

Full data for 431-433 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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