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6409-6411 California St

Central Richmond, SF 94121 1407048 2 units · 2 fl · 1923

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 Central Richmond
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 6409-6411 California 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 1923
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1923
Total area3,376 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1407048
Ownership

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

Owner name
Helen D Katzenmeyer Revoc T
Mailing address
Katzenmeyer Helen D Trustee 6409 California St San Francisco CA 94121
Last sale
110617

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.

6409 California St, San Francisco, CA 94121
6411 California St, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 6409-6411 California Street, located in San Francisco's Central Richmond neighborhood, is a 2-story flats/duplex structure built in 1923, currently owned by the Helen D Katzenmeyer Revocable Trust. The property has undergone several significant improvements over the past decade, including a major interior renovation in 2018 that involved structural modifications to remove a load-bearing wall and install new supports, as well as kitchen improvements costing $20,000. Previous upgrades included a comprehensive window replacement project in 2010 ($17,081), bathroom and kitchen updates in 2010 ($5,500), and an electrical service upgrade in 2007 ($15,000). A notable construction complaint was filed in August 2010 regarding unauthorized work, though this was quickly addressed within a week.

Recent tenant activity includes a buyout at 6409 California Street in June 2017 for $59,500 involving two tenants. The building has experienced various maintenance and service issues over the years, with the most recent concerns in 2023 involving noise complaints and parking issues. The property has also seen some environmental challenges as evidenced by 2019 reports of medical waste and general street cleaning needs. While multiple street space permits have been issued, the building's overall maintenance record shows regular upkeep, with most recent complaints being non-structural in nature. The building's utilities and structural systems appear to have received regular updates, with significant investments in electrical systems, window replacement, and interior improvements over the years, suggesting proactive maintenance by the ownership.

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

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Risk rating

How 6409-6411 California 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
66th percentile

Out of 2250 buildings in this neighborhood, 765 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 83.1%
Moderate concern 12.4%
Severe concern 4.4%
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

6409-6411 California St event timeline

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

2023
311 Request May 01
Trees - overgrown tree
Pruning request

See all 2 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 6409-6411 California St apartments

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

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