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479-481 28Th Ave

Central Richmond, SF 94121 1460001P 2 units · 2 fl · 1919

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 479-481 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 1919
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 built1919
Total area2,600 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1460001P
Ownership

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

Owner name
Wong Susan A
Mailing address
642 Bellevue Ave Daly City CA 94014
Last sale
110519

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.

481 28th Ave, San Francisco, CA 94121
479 28th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 479-481 28th Avenue in San Francisco's Central Richmond district is a 2-unit, 2-story multi-family residential building constructed in 1919 and currently owned by Susan A. Wong. The building experienced significant code violations in 2013-2016, when it was improperly converted from a two-family dwelling to a three-unit property with hotel-like features, including unauthorized bathroom and cooking facilities. These violations, which included unpermitted wiring, plumbing, and changes in occupancy classification, led to multiple enforcement actions and correction notices from September 2013 through December 2017, including a final compliance project in 2016 that reverted unauthorized modifications and removed illegal fixtures. The building also underwent several necessary repairs during this period, including rebuilding rear egress stairs, addressing water damage and dry rot, and updating mechanical systems with new gas furnaces and water heaters in early 2014.

Historical maintenance issues prior to and during the violations period included problems with heat (January 2014), electrical systems (September 2013), and various building deficiencies such as broken windows, damaged paint, and interior surface problems documented in 2013-2014. The property has a documented history of parking-related issues in the surrounding area, with multiple reports of illegal parking on sidewalks between 2018 and 2024. All major building code violations and complaints related to the unauthorized modifications have been closed following resolution in 2017, and the building's most recent permits indicate compliance with previous orders. While the property has experienced various maintenance and compliance issues in the past, it appears that the significant code violations from 2013-2017 have been addressed, with no active violations on record as of October 2023. The most recent building permit activity was primarily related to routine maintenance and system updates.

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

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Risk rating

How 479-481 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
48th percentile

Out of 2250 buildings in this neighborhood, 1170 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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 83.4%
Moderate concern 12.1%
Severe concern 4.4%
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

479-481 28Th 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 479-481 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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