Free SF apartment background check

524 Kansas St

Potrero Hill, SF 94107 4010019 4 units · 4 fl · 1977

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 524 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 1977
2 or more units
4 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
Units4
Floors4
Year built1977
Total area6,483 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4010019
Ownership

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

Owner name
Masami Hattori & Petra Mofa
Mailing address
Hattori Masami & Mofazelli 524 Kansas St Apt 2 San Francisco CA 94107
Last sale
052419

Landlord portfolio

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

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Augrented Insights
Initial analysis

524 Kansas Street is a 4-story, 4-unit multi-family residential building located in Potrero Hill, built in 1977 and currently owned by Masami Hattori & Petra Mofa. The building has undergone several significant renovations and improvements over the years, with the most recent work being a reroofing project completed in 2023 at a cost of $14,800. A major renovation occurred in 2014-2015 involving the relocation of one unit above the garage, remodeling of a second-floor unit, and the installation of a comprehensive fire sprinkler system throughout the building, including 80 heads and a 2-inch underground fire service, costing a total of $430,000. The building faced several challenges in 2017, including multiple fire code violations related to blocked exits, combustibles in exit paths, smoke alarm issues, and sprinkler service concerns, though these violations were subsequently abated.

The property has experienced various maintenance and operational issues, including plumbing problems in 2015 (busted pipe, water leak), construction-related complaints about dust and debris, and some parking enforcement concerns in the surrounding area. In 2019, there were reports of medical waste (needles) near the property that were resolved by city services. Of particular note is the building's history with short-term rentals, as evidenced by planning records showing a violation in 2019 regarding high-volume short-term rentals on Airbnb, which was eventually resolved when owners ceased hosting and transitioned all units to long-term rentals. The building's maintenance history shows regular upkeep, including window and siding replacement in 2010, installation of new furnaces in 2015, and various unit-specific improvements over the years.

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

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Risk rating

How 524 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
47th percentile

Out of 726 buildings in this neighborhood, 385 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
73%
No DBI
violation
27%
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.

Building size

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

Number of units

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

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 62.8%
Moderate concern 23.1%
Severe concern 14.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

524 Kansas St apartment reviews

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The story over time

524 Kansas St event timeline

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

2025
311 Request Apr 07
Garbage and debris
furniture

See all 2 events

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

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Every record we have

Full data for 524 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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