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437-439 Plymouth Ave

Oceanview, SF 94112 7104002 2 units · 2 fl · 1906

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 Oceanview
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Oceanview average of 1.4.

Rent & eviction protection

Is 437-439 Plymouth 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 1906
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
Floors2
Year built1906
Total area2,294 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot7104002
Ownership

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

Owner name
Liao Junchu & Liu Mian Zuan
Mailing address
439 Plymouth Ave San Francisco CA 94112
Last sale
062199

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.

439 Plymouth Ave, San Francisco, CA 94112
437 Plymouth Ave, San Francisco, CA 94112
Augrented Insights
Initial analysis

The two-unit multi-family residential building at 437-439 Plymouth Avenue, located in the Oceanview neighborhood, is a two-story flats and duplex structure built in 1906, currently owned by Liao Junchu and Liu Mian Zuan. The property's documented improvements include the installation of vinyl siding on one side of the house in 2000 (permit expired), and a solar panel installation in 2011 consisting of 5 roof-mounted PV modules with a total rating of 1.17 kW, which was successfully completed.

The building has experienced numerous municipal service calls over the past year, with the most frequent issues being related to parking violations, including multiple instances of driveway blocking and sidewalk parking between October 2024 and January 2025. Environmental concerns have been notable in recent months, with several reports of garbage and debris, including an instance of a mattress being dumped (resolved), and ongoing issues with park service area trash dumping (open). As of late 2024, there are two open cases that require attention: one regarding an overgrown tree near communication lines (accepted) and another concerning general park service area maintenance. The building's location has been affected by various parking enforcement challenges, though most of these cases were either unable to be validated or resolved through official citations.

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

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Risk rating

How 437-439 Plymouth 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
66th percentile

Out of 79 buildings in this neighborhood, 27 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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

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 64.8%
Moderate concern 17.3%
Severe concern 17.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

437-439 Plymouth Ave event timeline

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

2023
311 Request Jul 25
Parking on sidewalk
Tan - GMC Sierra - 6r47087

See all 1 events

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

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Every record we have

Full data for 437-439 Plymouth 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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