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3745-3751 Cabrillo St

Outer Richmond, SF 94121 1681011A 4 units · 2 fl · 1948

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Outer Richmond
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 3745-3751 Cabrillo 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 1948
2 or more units
4 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.

Building characteristics
Units4
Floors2
Year built1948
Total area3,350 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1681011A
Ownership

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

Owner name
Won Richard & Theresa Y
Mailing address
339 31st Ave San Francisco CA 94121
Last sale
091514

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.

3747 Cabrillo St, San Francisco, CA 94121
3751 Cabrillo St, San Francisco, CA 94121
3745 Cabrillo St, San Francisco, CA 94121
3749 Cabrillo St, San Francisco, CA 94121
Augrented Insights
Initial analysis

The 4-unit multi-family residential building at 3745-3751 Cabrillo St in the Outer Richmond neighborhood, owned by Richard & Theresa Y Won, was constructed in 1948 and stands two stories tall. The property has undergone several significant improvements over the past decades, with the most recent major renovation occurring in 2021, which included kitchen and bathroom remodels in all units, conversion from gas to electric appliances, and associated electrical and plumbing work totaling approximately $30,000. Prior to this work, there were serious concerns raised by residents in July 2021 about unauthorized remodeling, including alleged plumbing and electrical modifications, asbestos/lead dust, structural concerns, and safety issues related to smoke alarms and fire extinguishers, though these permits were subsequently properly documented and completed.

The building's history shows a pattern of maintenance and safety concerns, particularly in the 2000s, when multiple violations were recorded in September 2010 related to fire safety (including fire extinguisher requirements), building exterior maintenance, and seismic bracing of water heater storage tanks. These violations were all marked as abated by October 21, 2010. A notable plumbing issue occurred in 1998 with a sewage overflow problem. The property has experienced recurring infrastructure issues in recent months, most significantly evidenced by multiple sewer-related complaints, including an October 2024 sewage backup/discharge incident and recent plumbing maintenance issues. There have also been numerous parking-related complaints in recent months (October-November 2024), though these are not directly related to building conditions or maintenance. The most recent active issue as of October 2023 appears to be concerns regarding an overgrown tree blocking street lights, reported in September 2024.

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

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Risk rating

How 3745-3751 Cabrillo 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
18th percentile

Out of 1040 buildings in this neighborhood, 853 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
67%
No DBI
violation
33%
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.

DBI tenant complaints (past 7 years)

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 64.0%
Moderate concern 25.3%
Severe concern 10.6%
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

3745-3751 Cabrillo St event timeline

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

2025
311 Request Aug 22
Other illegal parking
Parking Enforcement
311 RequestFeb 22
Blocking driveway cite only

See all 9 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3745-3751 Cabrillo 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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