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720 Potrero Ave

Inner Mission, SF 94110 4078001C 2 units · 2 fl · 1923

This building has more problems than most buildings in this neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
Above average
avg 2.6
7
FewerMore

This building has 7 novs (7y), above the Inner Mission average of 2.6.

Rent & eviction protection

Is 720 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 1923
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 built1923
Total area2,340 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4078001C
Ownership

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

Owner name
Tam/Leung Family Trust
Mailing address
Isidore C S Tam & Minna M H 98 Lois Ln San Francisco CA 94134
Last sale
010412

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The two-unit, two-story residential building at 720 Potrero Ave in the Inner Mission neighborhood, currently owned by the Tam/leung Family Trust, has a documented history of significant code compliance issues dating back to the year 2000. The most substantial ongoing concern appears to be related to an unpermitted two-story rear addition measuring approximately 12' x 12', which generated multiple violation notices between January and April 2000, with a director's hearing scheduled for June 2000. This unauthorized construction was subsequently addressed through a permit application in May 2000, which has since expired. Additional building complaints from 1999-2000 referenced an illegal ground floor rear unit and unauthorized renovations, though some of these complaints are no longer active.

More recently, the building has been the subject of a January 2023 complaint regarding blight and peeling lead paint, and there is an active complaint from March 2000 regarding remodeling without proper permits. The surrounding area has experienced various municipal service issues in 2024-2025, including multiple reports of streetlight problems, a fallen tree, and debris on public property. Several 311 calls in late 2024 documented infrastructure and public space maintenance needs, including a damaged traffic signal, though these are not directly related to the building itself. The property's documented history suggests persistent challenges with code compliance and unauthorized modifications, though the most recent building-specific complaint concerning lead paint was filed over seven years ago.

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

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Risk rating

How 720 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
23th percentile

Out of 2380 buildings in this neighborhood, 1833 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
46%
No DBI
violation
54%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

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.

12-Month severity forecast
No violation 38.2%
Moderate concern 50.9%
Severe concern 10.9%
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

720 Potrero Ave event timeline

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

2025
Building Violation (NOV) Dec 05
Building violation
It is the property owner¿s responsibility to be present or direct his/her representative to attend, the re-inspection as scheduled on this…
Building Violation (NOV)Dec 05
Building violation

See all 8 events

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

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Every record we have

Full data for 720 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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