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500 Kansas St

Potrero Hill, SF 94107 4010001 3 units · 2 fl · 1927

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 500 Kansas St 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 1927
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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
Floors2
Year built1927
Total area2,940 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4010001
Ownership

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

Owner name
Marinai Ralph A
Mailing address
2124 Dunn Road Hayward CA 94545
Last sale
021999

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit multi-family residential building at 500 Kansas Street in Potrero Hill, owned by Ralph A Marinai, was constructed in 1927 as a two-story flats and duplex structure. The building's maintenance record shows two significant permitted improvements: a reroofing project completed in 2001 at a cost of $5,575 (permit now expired) and a recent electrical system upgrade in June 2023, which included a 200-amp main panel upgrade and meter relocation for common areas, now completed.

The property has experienced a notable pattern of maintenance issues and environmental challenges throughout 2024-2025, with the most pressing incident being a sewage backup discharge from a side sewer vent in July 2024 that required immediate attention from the Public Utilities Commission Sewer Operations. There has been a consistent pattern of garbage and debris complaints in the vicinity, with six incidents reported between April and December 2024, including various types of waste such as glass, loose garbage, yard waste, and furniture. The building's surroundings have also experienced two parking enforcement issues in July 2024, including one case of illegal parking and another involving a blocked driveway. While these environmental and maintenance issues have been addressed through city services and resolution processes, they suggest ongoing challenges with waste management and infrastructure maintenance in the building's vicinity, particularly during the summer of 2024 when multiple incidents were concentrated in July alone.

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

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Risk rating

How 500 Kansas St'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
57th percentile

Out of 726 buildings in this neighborhood, 312 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 56.4%
Moderate concern 32.3%
Severe concern 11.3%
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

500 Kansas St event timeline

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

2023
Electrical Permit Jun 13
Main panel upgrade 200a relocation meter added for common areas
Complete

See all 1 events

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

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Every record we have

Full data for 500 Kansas St 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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