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4438-4440 California St

Lake Street, SF 94118 1366025 4 units · 3 fl · 1907

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 Lake Street
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 4438-4440 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
4 units
Property type
Multi-Family Residential
Zoning
NC1
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
Units4
Floors3
Year built1907
Total area4,519 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1366025
Ownership

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

Owner name
Yui & Oi Sim Tang Lee Revoc
Mailing address
Lee Yui & Oi Sim Tang Trust 4440 California St Apt 4 San Francisco CA 94118
Last sale
082897

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.

4438 California St, San Francisco, CA 94118
4440 California St, San Francisco, CA 94118
Augrented Insights
Initial analysis

The three-story multi-family residential building at 4438-4440 California Street, constructed in 1907 and containing four units, has undergone significant recent improvements with a focus on safety and maintenance. In early 2024, a comprehensive fire alarm system upgrade was completed at a cost of $21,000, including new smoke detectors and horn strobes. The property has received substantial maintenance attention, including dry rot and stucco repairs in 2023 ($13,500), window and door replacements in 2023 ($30,000), and various plumbing and electrical upgrades between 2016-2017. Notable building violations from 2016-2018 were addressed, including unauthorized construction work that exceeded permit scope and partition wall issues, though these were all resolved by 2018. The property also experienced some concerning events in 2018, including multiple fire safety complaints related to illegal occupancy, electrical systems, and fire escape concerns, though these were referred to and addressed by the Department of Building Inspection. A tenant buyout occurred in April 2018, with all four tenants receiving $60,000 collectively. The building's recent history shows consistent investment in maintenance and safety upgrades, with no active violations or complaints as of now. Recent service calls (2022-2024) have primarily involved routine street maintenance and parking enforcement issues, with only one related to a local encampment that was unable to be located by authorities.

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

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Risk rating

How 4438-4440 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
55th percentile

Out of 660 buildings in this neighborhood, 297 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
85%
No DBI
violation
15%
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.

Property class (F2)

The assessor's property-class code, which correlates with building type and the violation rates the model expects.

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 73.6%
Moderate concern 15.6%
Severe concern 10.8%
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

4438-4440 California St event timeline

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

2025
311 Request Sep 22
Blocking driveway cite tow
Parking Enforcement

See all 8 events

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

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Every record we have

Full data for 4438-4440 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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