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409-411 Plymouth Ave

Oceanview, SF 94112 7104050 8 units · 2 fl · 1947

This building has far more open problems than almost any other in the neighborhood. 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
1
FewerMore

This building has 1 novs (7y), at or below the Oceanview average of 1.4.

Rent & eviction protection

Is 409-411 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 1947
2 or more units
8 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
Units8
Floors2
Year built1947
Total area7,191 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot7104050
Ownership

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

Owner name
Guido & Pierina Giosso Fmly
Mailing address
227 Concord St San Francisco CA 94112
Last sale
012511

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.

409 Plymouth Ave, San Francisco, CA 94112
411 Plymouth Ave, San Francisco, CA 94112
Augrented Insights
Initial analysis

The 8-unit multi-family residential building at 409-411 Plymouth Ave in Oceanview, owned by Guido & Pierina Giosso Fmly, was constructed in 1947 and has undergone several significant events over the years. Most notably, the property has experienced recurring issues with vacancy and maintenance compliance, with multiple violations related to the Vacant Building Ordinance (194-09) between 2014 and 2019, including an active violation from 2019 regarding monitoring fees. The building has a documented history of maintenance challenges, including roofing problems with repairs documented in both 1990 and 2018 (costing $7,000), water damage, and various interior maintenance issues. A series of complaints filed in 2001 highlighted problems with heating units, sink drains, and ceiling repairs, while a 2004 complaint reported roof leaks causing water intrusion. More recently, between 2023-2024, there have been multiple 311 calls regarding street cleaning needs around the property, including reports of abandoned furniture and debris, though these exterior issues don't directly reflect on the building's internal conditions. The most pressing current concern appears to be the ongoing violation regarding the Vacant Building Ordinance, with the property having a history of falling into vacancy status between 2014-2022, with the most recent vacant building complaint filed in December 2022.

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

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Risk rating

How 409-411 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
6th percentile

Out of 79 buildings in this neighborhood, 74 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
54%
No DBI
violation
46%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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 47.6%
Moderate concern 22.5%
Severe concern 29.9%
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

409-411 Plymouth Ave event timeline

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

2026
311 Request Jun 02
Parking on sidewalk
Parking Enforcement
311 RequestMay 13
Garbage and debris

See all 10 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 409-411 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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