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412-414 Plymouth Ave

Oceanview, SF 94112 7103018G 2 units · 2 fl · 1948

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 412-414 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 1948
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 built1948
Total area2,050 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot7103018G
Ownership

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

Owner name
Miao Ying Hong
Mailing address
412 - 414 Plymouth Ave San Francisco CA 94112
Last sale
091201

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.

414 Plymouth Ave, San Francisco, CA 94112
412 Plymouth Ave, San Francisco, CA 94112
Augrented Insights
Initial analysis

The property at 412-414 Plymouth Avenue, a two-unit residential building constructed in 1948, has undergone several significant changes and faced multiple compliance issues over the years. Most recently, in February 2022, substantial exterior improvements were completed, including new siding on the front and back of the building and window replacements, at a cost of $15,000. However, the building has experienced persistent infrastructure challenges, particularly with sewer problems, as evidenced by multiple sewage backup incidents from 2022 through 2024, including four occurrences between July and September 2024 from the side sewer vent.

The building's history reveals a pattern of unauthorized modifications and safety concerns. In 2008-2012, there were multiple attempts to address issues with a rear deck and stairs, following concerns about dry rot and safety, including an active violation filed in January 2008. Earlier violations from 2003-2005 documented unauthorized construction of a third dwelling unit in the garage, complete with illegal kitchen and bathroom facilities, and improper use of R-3 occupancy for a car repair business. The property has also been subject to various complaints regarding unpermitted construction work, including electrical wiring and sheetrock installations in 2007-2008, construction noise, and weekend work. Recent municipal records show ongoing maintenance of the building's basic systems, though with some notable concerns, such as a significant number of parking violations for blocking driveways reported between 2022 and 2024.

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

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Risk rating

How 412-414 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
91th percentile

Out of 79 buildings in this neighborhood, 7 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.

Neighborhood (ZIP code)

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 81.1%
Moderate concern 14.2%
Severe concern 4.7%
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

412-414 Plymouth Ave event timeline

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

2024
311 Request Sep 08
Sewage back-up discharge
from side sewer vent
311 RequestJul 12
Sewage back-up discharge

See all 7 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 412-414 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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