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471-473 30Th Ave

Central Richmond, SF 94121 1462014 2 units · 2 fl · 1987

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 471-473 30Th 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 1987
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors2
Year built1987
Total area4,012 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1462014
Ownership

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

Owner name
Lui Tom C & Alicia C
Mailing address
471 30th Ave San Francisco CA 94121
Last sale
022895

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.

473 30th Ave, San Francisco, CA 94121
471 30th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 471-473 30th Avenue in San Francisco's Central Richmond neighborhood is a two-story flats and duplex structure owned by Tom C. and Alicia C. Lui, constructed in 1987 following earlier foundation and structural work that began in 1984. The building underwent several significant modifications during its early years, including a horizontal extension in 1986 and sun deck revisions with associated foundation work in 1985, all of which were completed successfully. Window installation work was properly completed in 1992, and a reroofing project with a cost of $6,540 was undertaken in 2005, demonstrating regular maintenance attention.

The property has experienced minimal issues over the years, with only one notable incident involving construction-related noise complaints in November 2016, though this case is no longer active. There have been three 311 calls in recent years: a reported abandoned vehicle in December 2024, which was investigated and found to be not abandoned, and a graffiti incident in April 2021 involving an offensive marking on a public light pole that was resolved by the Department of Public Works. Importantly, there have been no fire incidents recorded at this address, and the only documented fire-related event was a false alarm or call that resulted in no injuries or damage. The building's documented history shows regular maintenance and compliance with building codes, with no significant safety concerns or resident complaints beyond the one construction noise complaint from 2016.

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

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Risk rating

How 471-473 30Th 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
85th percentile

Out of 2250 buildings in this neighborhood, 338 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
90%
No DBI
violation
10%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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 83.2%
Moderate concern 11.0%
Severe concern 5.7%
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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On the map

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The story over time

471-473 30Th 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 471-473 30Th 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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