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691-693 28Th Ave

Central Richmond, SF 94121 1571005I 2 units · 2 fl · 1924

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 691-693 28Th 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 1924
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 built1924
Total area2,640 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1571005I
Ownership

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

Owner name
Tam Alice S Revocable Trust
Mailing address
Alice S Tam 1839 Cabrillo St 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.

691 28th Ave, San Francisco, CA 94121
693 28th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit multi-family residential building at 691-693 28th Avenue in San Francisco's Central Richmond neighborhood is a two-story structure built in 1924, currently owned by the Tam Alice S Revocable Trust. The property has undergone several significant improvements over the years, including a kitchen remodel with new countertops and cabinets in 2002 (cost: $5,000), reroofing in 2005 (cost: $6,200), and a garage door replacement in 2013 that included ventilation modifications (cost: $1,100). The building has experienced some regulatory compliance issues, with two documented instances of unpermitted work: a plumbing project in 2005 that was swiftly addressed within two days, and a remodeling project in 2000 that remains listed as active in the Building Inspection Division's records. An expired termite treatment notice from 1987 is the only other notable historical record. More recently, there was an isolated incident of an overflowing city garbage can on the street outside the property in January 2017, which was resolved promptly by city services. While the building has had some compliance issues in the past, most recent work appears to be properly permitted, and there are no current active violations or complaints related to the property as of October 2023.

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

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Risk rating

How 691-693 28Th 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
38th percentile

Out of 2250 buildings in this neighborhood, 1395 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

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 80.4%
Moderate concern 13.3%
Severe concern 6.4%
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

691-693 28Th Ave event timeline

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

2026
311 Request Jun 01
Abandoned vehicle
Parking Enforcement

See all 2 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 691-693 28Th 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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