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320 11Th Ave

Inner Richmond, SF 94118 1442047 12 units · 3 fl · 1961

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Richmond
Above average
avg 0.9
11
FewerMore

This building has 11 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 320 11Th 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 1961
2 or more units
12 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units12
Floors3
Year built1961
Total area10,035 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1442047
Ownership

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

Owner name
Yinming Investment Co
Mailing address
950 Stockton St Ste 403 San Francisco CA 94108
Last sale
110804

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 3-story, 12-unit apartment building at 320 11th Avenue in the Inner Richmond, owned by Yinming Investment Co, has undergone several important safety upgrades and faced recurring maintenance challenges since its 1961 construction. Most recently, in August 2024, the building completed a significant fire alarm system upgrade costing $39,200 to meet current San Francisco Fire Code requirements, including installation of low-frequency sounders in sleeping areas and new compatible devices. The building achieved compliance with San Francisco's Soft Story Seismic Retrofit program in 2016, demonstrating attention to structural safety.

Historical records show consistent building maintenance issues, particularly relating to water intrusion and mold. Between 2002-2013, multiple complaints were filed regarding water damage, including significant flooding incidents in 2011 and 2013, along with recurring reports of mold and ventilation issues. A cluster of violations was recorded in 2002 related to fire safety and building maintenance, including fire proofing, fire escape maintenance, laundry room ventilation, and various general safety requirements, though these were all abated by July 2002. The building has experienced periodic fire alarm system issues, with documented complaints in 2023, 2020, and 2019, though these were generally resolved promptly, with one violation in 2020 related to alarm system maintenance being officially abated. Recent 311 calls from 2022-2024 primarily relate to street cleaning and waste removal, indicating typical urban maintenance concerns in the vicinity of the building.

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

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Risk rating

How 320 11Th 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
2th percentile

Out of 1723 buildings in this neighborhood, 1689 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
30%
No DBI
violation
70%
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.

Building size

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

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 18.6%
Moderate concern 69.6%
Severe concern 11.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

320 11Th Ave apartment reviews

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The story over time

320 11Th Ave event timeline

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

2026
DBI Complaint May 12
Caller is reporting mold issues in the unit for 10 years. caller would like an inspector to come out asap before the building management rip it all off so she can show you. caller suspects the mold is beyond visible area. caller has a 2 bedroom unit but is unable to rent other bedroom out because of the mold situation. caller is only working from home on fridays.
Housing Inspection Services
311 RequestMay 07
Garbage and debris

See all 17 events

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

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Every record we have

Full data for 320 11Th 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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