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6533 California St

Central Richmond, SF 94121 1406041 2 units · 1 fl · 1907

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Richmond
Above average
avg 0.5
3
FewerMore

This building has 3 novs (7y), above the Central Richmond average of 0.5.

Rent & eviction protection

Is 6533 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 1907
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1S
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
Floors1
Year built1907
Total area1,834 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1406041
Ownership

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

Owner name
Michael David Mah 2017 Revo
Mailing address
Michael David Mah Trustee 6535 California St San Francisco CA 94121
Last sale
042715

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 6533 California Street, located in San Francisco's Central Richmond neighborhood, has a storied history dating back to its 1907 construction. The one-story flats and duplex property, currently owned by Michael David Mah, underwent significant improvements with a rear three-story horizontal addition completed in 2005 at a cost of $360,000, and more recently, a $17,000 reroofing project completed in 2015. However, the building has faced serious maintenance challenges in recent years, most notably documented in an active complaint filed in August 2019 that remains unresolved as of October 2023. This complaint details multiple violations related to weather proofing and paint conditions, with specific concerns about lead hazards. A previous complaint from January 2018 also highlighted the property's deteriorating condition, though this was eventually closed.

The property has experienced recent infrastructure issues, with two sewage backup incidents reported in November 2024. Parking enforcement has been a frequent concern, with multiple citations issued between November 2024 and January 2025 for driveway blocking violations, suggesting ongoing challenges with street access. While the building's historical improvements demonstrate some investment in the property, the persistent maintenance issues and recent sewer problems raise significant concerns about the building's current condition and resident experience. The building's documented history shows a pattern of recurring maintenance challenges, with the most pressing current issues centering around exterior maintenance and sewer infrastructure.

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

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Risk rating

How 6533 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
6th percentile

Out of 2250 buildings in this neighborhood, 2115 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
41%
No DBI
violation
59%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Director's hearings (past 7 years)

Director's hearings are escalated enforcement actions for buildings that haven't resolved violations — a serious signal.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 52.5%
Moderate concern 43.8%
Severe concern 3.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

6533 California St apartment reviews

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The story over time

6533 California St event timeline

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

2026
311 Request May 14
Blocking driveway cite only
Parking Enforcement
311 RequestApr 05
Blocking driveway cite only

See all 9 events

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

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Every record we have

Full data for 6533 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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