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2426-2430 California St

Pacific Heights, SF 94115 0635007 5 units · 3 fl · 1912

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Pacific Heights — not a forecast
At or below average
avg 1.5
0
FewerMore

This building has 0 novs (7y), at or below the Pacific Heights average of 1.5.

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 2426-2430 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 1912
2 or more units
5 units
Property type
Multi-Family Residential
Zoning
FILLMR
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 1912
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
Units5
Floors3
Year built1912
Total area6,290 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0635007
Ownership

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

Mailing address
Frank C N Tsang & Judy M M 2635 Chestnut St San Francisco CA 94123
Last sale
April 27, 2007

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

2430 California St, San Francisco, CA 94115
2428 California St, San Francisco, CA 94115
2426 California St, San Francisco, CA 94115
Augrented Insights
Initial analysis

The 5-unit multi-family residential building at 2426-2430 California Street in Pacific Heights was constructed in 1912 and is currently owned by Frank C-n & Judy M-m Sze Ts. The building has undergone several significant improvements over the past decade, most notably in 2010 when comprehensive safety upgrades were completed, including the installation of a fire sprinkler system in the ground floor daycare/preschool area (with 25 heads and a new 2-inch water meter), a fire alarm system, and related electrical work. The roof was reroofed in 2014 at a cost of $27,000. More recent maintenance issues have emerged, with a 2023 complaint regarding an overflowing trash area, and in 2017 there were multiple interior problems including water damage, mold/mildew, and concerns about lead-based paint, though these were officially abated by June 2017.

The building has experienced several fire alarm activations, though none resulted in actual fires or civilian injuries. A sprinkler/standpipe systems complaint was reported and corrected in July 2023. Multiple 311 calls between 2022 and 2024 have been made regarding street cleaning and debris issues near the property, though these were primarily external and not directly related to building conditions. The property underwent routine safety inspections in 1999 and 2014, and several building permits have been issued for street space usage and sidewalk repairs, with the most recent activity occurring in 2018. The building's violation history shows concentrated issues in April 2017, primarily relating to interior surface conditions, which were subsequently addressed through proper remediation processes.

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

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Risk rating

How 2426-2430 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

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 963 buildings in this neighborhood, 693 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
51%
No DBI
violation
49%
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.

Number of units

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

Building size

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

DBI tenant complaints (past 7 years)

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

12-Month risk forecast
Moderate failure risk 49%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

2426-2430 California St apartment reviews

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The story over time

2426-2430 California St event timeline

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

2023
Fire Complaint Jul 17
Sprinkler/Standpipe Systems
Condition Corrected
DBI ComplaintFeb 16
Trash area not maintained and is over-flowing

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 2426-2430 California St apartments

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

Side by side

How 2426-2430 California St compares to the neighborhood

This building against comparable properties in Pacific Heights. Toggle filters to narrow the peer group.

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

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