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311 San Jose Ave

Inner Mission, SF 94110 6531027B 3 units · 2 fl · 1947

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 Inner Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 311 San Jose 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
3 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units3
Floors2
Year built1947
Total area2,444 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6531027B
Ownership

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

Owner name
Mariner Joann M
Mailing address
311 San Jose Ave Apt A San Francisco CA 94110
Last sale
120602

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-unit, two-story multi-family residential building at 311 San Jose Ave in San Francisco's Inner Mission neighborhood was constructed in 1947 and is currently owned by Joann M. Mariner. The building underwent significant renovation in 2005, with a $75,000 interior remodel that included a kitchen and bathroom update, along with associated electrical work involving new lighting, switches, receptacles, and circuits. A notable safety incident occurred in March 2009 when the property received multiple building violations during a routine inspection, including deficiencies related to gas utility shutoff tools, fire extinguisher requirements, and smoke detector placement. These violations were all abated by April 28, 2009, and the building has since undergone regular routine inspections in 2010 and 2017, with no active violations on record.

Recent activity at the property primarily consists of exterior maintenance and street cleaning matters, with several 311 calls between 2018 and 2024 reporting issues such as abandoned furniture, loose garbage, and an encampment that was addressed in 2018. The most recent 311 calls in November 2024 involved reports of abandoned furniture, which were resolved through Recology's intervention. The building's documented history shows that while there were significant safety compliance issues in 2009, these were promptly addressed, and there have been no recent building code violations on record. The property has maintained regular interactions with housing inspection services, with all identified issues being addressed in a timely manner.

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

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Risk rating

How 311 San Jose 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
65th percentile

Out of 2380 buildings in this neighborhood, 833 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
72%
No DBI
violation
28%
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.

Construction spend, owner's portfolio

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

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 55.7%
Moderate concern 21.8%
Severe concern 22.5%
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

311 San Jose Ave event timeline

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

2026
311 Request Feb 28
Garbage and debris
furniture
311 RequestFeb 16
Garbage and debris

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 311 San Jose 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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