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601 Potrero Ave

Potrero Hill, SF 94110 4026008 6 units · 2 fl · 1959

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 Potrero Hill
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Potrero Hill average of 1.1.

Rent & eviction protection

Is 601 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 1959
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
M1
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
Units6
Floors2
Year built1959
Total area4,178 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4026008
Ownership

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

Owner name
Brian Zentgraf Revoc Tr
Mailing address
Zentgraf Brian Trustee 6556 Dana Ct Castro Valley CA 94552
Last sale
012820

Landlord portfolio

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

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Augrented Insights
Initial analysis

The six-unit, two-story apartment building at 601 Potrero Avenue in Potrero Hill, constructed in 1959, has undergone several significant safety and infrastructure improvements over the past decade. Most notably, the building completed a mandatory soft-story retrofit in 2017 (as a Tier 3 property), demonstrating the owner's commitment to earthquake safety. Recent fire safety improvements include a comprehensive fire alarm system upgrade in 2021, which cost over $13,000 and involved replacing the fire alarm control unit, smoke detectors, and installing new low-frequency horns in compliance with San Francisco fire requirements. The building has experienced multiple fire alarm system activations since 2012, though these have all been classified as false alarms or system malfunctions with no reported injuries.

Infrastructure improvements have included a complete reroofing in 2010 ($18,800), replacement of 18 windows with energy-efficient Milgard vinyl windows in 2010 ($13,050), and plumbing upgrades including sewer line work in 2011. The building had a brief period of fire safety violations in late 2009 related to fire extinguisher maintenance, but these were promptly addressed and closed within weeks. Recent exterior maintenance issues have been mostly resolved through regular city services, with several reports of garbage and debris in the vicinity being addressed through street cleaning services. The most recent building-related service calls have primarily involved street lighting and parking concerns, rather than building-specific issues, indicating stable building conditions in recent years.

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

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Risk rating

How 601 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
48th percentile

Out of 726 buildings in this neighborhood, 378 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
74%
No DBI
violation
26%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Building size

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

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 53.1%
Moderate concern 26.0%
Severe concern 20.8%
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

601 Potrero Ave event timeline

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

2025
311 Request Oct 17
Garbage and debris
other loose garbage debris yard waste

See all 7 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 601 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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