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856-860 Potrero Ave

Inner Mission, SF 94110 4089012 3 units · 1 fl · 1895

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 Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 856-860 Potrero 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 1895
2 or more units
3 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
Units3
Floors1
Year built1895
Total area3,342 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4089012
Ownership

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

Owner name
Wai Fong Tang Lvg Tr
Mailing address
Tang Wai Fong Ttee 860 Potrero Ave San Francisco CA 94110
Last sale
021418

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.

858 Potrero Ave, San Francisco, CA 94110
860 Potrero Ave, San Francisco, CA 94110
856 Potrero Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

The three-unit multi-family residential building at 856-860 Potrero Ave in the Inner Mission, owned by the Wai Fong Tang Living Trust, is a single-story structure built in 1895. The property has undergone several significant maintenance and infrastructure improvements over the years, most notably a $15,000 foundation replacement along the southern property line completed in 2009, and a complete reroofing project in 1998. Additional infrastructure work includes an expired plumbing permit from 2013 for water system replacement and an expired electrical permit from 2009 for ground wire installation. The building has one recorded routine housing inspection from 2004, which is no longer active.

Recent activity around the property from late 2024 has primarily involved municipal services rather than building-specific issues, with multiple street-related concerns including two resolved streetlight outages, a replaced parking meter, graffiti removal, and responses to various parking enforcement calls. There was also a resolved complaint regarding abandoned furniture, a traffic signal repair, and a sidewalk-related issue that was fully abated. These recent street service matters, while indicating some neighborhood maintenance activity, do not directly reflect on the building's condition or management.

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

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Risk rating

How 856-860 Potrero 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
62th percentile

Out of 2380 buildings in this neighborhood, 904 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Number of floors

Building height affects maintenance complexity and is one of the size signals the model uses.

12-Month severity forecast
No violation 51.0%
Moderate concern 41.1%
Severe concern 7.9%
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

856-860 Potrero Ave event timeline

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

2025
311 Request Sep 16
Garbage and debris
oil paint other liquid spill wet

See all 3 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 856-860 Potrero 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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