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1157 Kansas St

Potrero Hill, SF 94107 4158040 2 units · 2 fl · 1926

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Potrero Hill — not a forecast
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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 1157 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 1926
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1926
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1926
Total area2,390 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot4158040
Ownership

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

Owner name
Mailing address
2734 Heatherstone Dr San Rafael CA 94903
Last sale

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 1157 Kansas Street in Potrero Hill, owned by Gerard J Donnellan, is a two-story flats and duplex structure constructed in 1926. The property has undergone several significant improvements in recent years, including a comprehensive electrical system upgrade in November 2020 that included a 200-amp service upgrade, installation of unit sub-panels, and the addition of multiple dedicated outlets throughout both units. The building received a new roof in June 2022 at a cost of $19,500, and in 2019, important maintenance work was performed on the front brick facade, including repairs to angle irons and addressing leaking brick veneer. An earlier roofing project from 1993 is no longer active.

The property has experienced recurring maintenance issues with the surrounding infrastructure, particularly the sidewalk, which has shown multiple defects. Notable events include three separate reports of collapsed sidewalks between February and April 2019, though these were either not found to be hazardous or were resolved through inspection. More recent concerns include a defaced sign in November 2023, graffiti on the sidewalk in October 2023, and an open sidewalk defect report from October 2023. The building's immediate area has also experienced periodic issues with illegal parking on the sidewalk, with reports in February 2023 and August 2019. The property has been maintained actively by its owner, with all building permits showing "Complete" status, indicating proper adherence to regulations and successful completion of the work.

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

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Risk rating

How 1157 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
28thpercentile

Out of 726 buildings in this neighborhood, 523 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
62%
No DBI
violation
38%
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 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.

Neighborhood (ZIP code)

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

12-Month risk forecast
Moderate failure risk 38%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1157 Kansas St apartment reviews

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On the map

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The story over time

1157 Kansas St event timeline

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

2022
Building Permit Jun 28
Reroofing
$19,500 · Complete

See all 3 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1157 Kansas St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 1157 Kansas St compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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