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31-33 Moulton St

Cow Hollow, SF 94123 0508023 2 units · 1924

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 Cow Hollow
At or below average
avg 0.7
0
FewerMore

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

Rent & eviction protection

Is 31-33 Moulton 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 1924
2 or more units
2 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
Units2
Floors
Year built1924
Total area2,360 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0508023
Ownership

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

Owner name
Kao-Chan Trust
Mailing address
Kao Hung Pin & Chan Jennife 2745 Washington Blvd Fremont CA 94539
Last sale
061519

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.

31 Moulton St, San Francisco, CA 94123
33 Moulton St, San Francisco, CA 94123
Augrented Insights
Initial analysis

This two-unit multi-family residential building, located at 31-33 Moulton Street in Cow Hollow, is a 1924 flats/duplex structure currently owned by the Kao-chan Trust. The property has undergone several notable improvements and faced some significant challenges over its history. The most concerning event occurred in February 2012 when tenants reported a serious foundation slope (over 2 inches for every 6 feet) and a troubling structural shift they likened to an "earthquake," which they suggested might be related to nearby street construction; this complaint was officially recorded and investigated but marked as "Not Active" in April 2012. The building has seen various maintenance and improvement projects, including electrical upgrades in 2003 with the installation of a 200-amp service and two meters/panels, new vinyl windows installation in 2003 and 2004, and a sidewalk expansion project in 2003 to increase the driveway width. Historical records show some structural modifications from 1984 and stairway repairs in 1999.

More recently, the property has experienced persistent issues with driveway blocking, with multiple complaints filed between 2022 and 2025, though these are primarily parking enforcement matters rather than building-related issues. The building's maintenance record shows regular upkeep, including window replacements and staircase repairs, with most recent improvements focusing on preserving existing structures rather than major renovations. While the foundation concerns from 2012 remain the most significant incident on record, the lack of subsequent complaints or building violations in recent years could suggest these issues were resolved, though no documented follow-up remediation is noted in the available data.

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

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Risk rating

How 31-33 Moulton 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
75th percentile

Out of 861 buildings in this neighborhood, 215 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.

Neighborhood location

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

Building permits, owner's portfolio

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

12-Month severity forecast
No violation 80.8%
Moderate concern 11.3%
Severe concern 7.8%
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

31-33 Moulton St event timeline

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

2026
311 Request Feb 21
Blocking driveway cite tow
Parking Enforcement
311 RequestFeb 08
Blocking driveway cite only

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 31-33 Moulton 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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