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512-514 Kansas St

Potrero Hill, SF 94107 4010001J 2 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 512-514 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
2 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
Units2
Floors2
Year built1927
Total area2,800 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot4010001J
Ownership

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

Owner name
Gregory J Tong Living Trust
Mailing address
Tong Gregory J Trustee 514 Kansas St San Francisco CA 94107
Last sale
071211

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.

514 Kansas St, San Francisco, CA 94107
512 Kansas St, San Francisco, CA 94107
Augrented Insights
Initial analysis

The two-unit residential building at 512-514 Kansas Street in Potrero Hill is a two-story flats and duplex structure built in 1927, currently owned by the Gregory J Tong Living Trust. The building's documented improvements include a reroofing project completed in 2013 at a cost of $5,000 and the installation of a tankless water heater in 2010, demonstrating some attention to maintenance and modernization. Historical permit records from 1982 and 1983 are on file, though their specific nature is not detailed in the current records.

The property has generated several interactions with municipal agencies over recent years, with the most significant issues relating to rent board matters. In 2024, there was a resolved inquiry regarding housing fees and payment processing, and in 2022, there was a resolved unit count issue. Other municipal interactions include various neighborhood maintenance and enforcement matters such as a glass cleanup in 2020, a parking violation response in 2020, and a missing "No Parking" sign replacement in 2013. While these incidents indicate regular urban living challenges, none appear to directly impact the building's structural integrity or safety. The building's maintenance history shows basic upkeep through permitted improvements, though the age of the structure (built 1927) suggests ongoing maintenance considerations are likely required.

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

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Risk rating

How 512-514 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
62th percentile

Out of 726 buildings in this neighborhood, 276 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Neighborhood location

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

Property class: multi-family flat

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

12-Month severity forecast
No violation 64.0%
Moderate concern 27.8%
Severe concern 8.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

512-514 Kansas St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 512-514 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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