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335 West Portal Ave

West Portal, SF 94127 3012020 2 units · 2 fl · 1935

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 West Portal
At or below average
avg 2.0
1
FewerMore

This building has 1 novs (7y), at or below the West Portal average of 2.0.

Rent & eviction protection

Is 335 West Portal Ave 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 1935
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
WPORTL
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
Floors2
Year built1935
Total area3,450 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3012020
Ownership

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

Owner name
Yang Chi-Kuo & Lee Chen
Mailing address
Po Box 27658 San Francisco CA 94127
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

This two-unit residential building, located at 335 West Portal Ave in the West Portal neighborhood, is a two-story flats and duplex structure built in 1935 and currently owned by Yang Chi-kuo & Lee Chen. The building's recent history shows relatively minor maintenance issues, with the most recent being a completed gas test in November 2023. In 2017, there was a building violation related to a handrail repair for the front stairway, which was promptly addressed within one month. The property has experienced several parking-related issues in recent months, with six complaints about driveway blocking between October and December 2024, though only one resulted in an officer response where the violation was confirmed. Additionally, there are two open cases from 2023 regarding curb defects, and a graffiti incident from April 2024 that has been resolved.

Historical records from the mid-1980s show some attempted modifications to the property, including a cancelled proposal for office and store use and a now-expired building permit, both from 1984-1985. More significantly, there have been two related planning records regarding off-street parking variance requests: one disapproved proposal in 1984-1985 and a closed Letter of Determination that allowed a change of use from residential to commercial, which was issued to Benjamin Chi-Ku. The building's total unit count remains at two, consistent with its original configuration. The property's recent inspection history indicates prompt attention to building code violations, though several recent issues related to street/sidewalk conditions and parking enforcement remain to be fully addressed.

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

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Risk rating

How 335 West Portal Ave'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
83th percentile

Out of 24 buildings in this neighborhood, 4 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

DBI complaints, owner's portfolio

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

12-Month severity forecast
No violation 85.0%
Moderate concern 11.0%
Severe concern 4.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

335 West Portal Ave apartment reviews

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The story over time

335 West Portal Ave event timeline

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

2024
311 Request Nov 09
Garbage and debris
other loose garbage debris yard waste

See all 4 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 335 West Portal Ave 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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