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330-332 20Th Ave

Central Richmond, SF 94121 1451038 2 units · 2 fl · 1923

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 Central Richmond
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 330-332 20Th 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 1923
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 built1923
Total area2,700 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1451038
Ownership

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

Owner name
Donald & Lillie Mae Louie 2
Mailing address
Louie Donald & Lillie Mae T 332 20Th Ave San Francisco CA 94121
Last sale
000000

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.

330 20th Ave, San Francisco, CA 94121
332 20th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

This two-unit multi-family residential building, located at 330-332 20th Avenue in San Francisco's Central Richmond neighborhood, was constructed in 1923 and features two stories. The property has undergone several significant improvements over the past few decades, with the most substantial renovations occurring in 2018. These improvements included comprehensive interior updates with a $34,000 kitchen and bathroom remodel, encompassing new vanities, cabinets, ceramic tiles, and electrical upgrades such as recessed lighting installation and rewiring of ungrounded outlets. The building's infrastructure has been maintained through periodic updates, including reroofing projects completed in 2007 (cost: $10,300) and 1989, as well as essential electrical work in 2007 that involved updating the service for both flats and one house meter.

The property has experienced recurring issues with sidewalk parking violations, particularly in 2023 and 2024, with at least three documented enforcement calls related to this problem, though these incidents are external to the building's operations. A defaced parking sign was repaired by the Department of Parking and Traffic in January 2019, and there was one street space permit issued in 2018. The building has maintained its residential status throughout its history, currently owned by Donald & Lillie Mae Louie 2, and has received appropriate permits for all major renovations and upgrades. The most recent modifications and the building's general maintenance history suggest regular upkeep of the property, with no recorded safety violations or significant building code issues in recent years.

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

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Risk rating

How 330-332 20Th 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
63th percentile

Out of 2250 buildings in this neighborhood, 832 are predicted to be safer.

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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

DBI complaint rate, owner's portfolio

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

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 83.2%
Moderate concern 12.2%
Severe concern 4.6%
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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On the map

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The story over time

330-332 20Th 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 330-332 20Th 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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