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331-333 10Th St

South of Market, SF 94103 3519042 2 units · 2 fl · 1907

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 South of Market
At or below average
avg 3.3
0
FewerMore

This building has 0 novs (7y), at or below the South of Market average of 3.3.

Rent & eviction protection

Is 331-333 10Th St 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 1907
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
SLR
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 built1907
Total area2,276 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3519042
Ownership

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

Owner name
Vallinas Santiago M
Mailing address
331 10th St San Francisco CA 94103
Last sale
012916

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.

331 10th St, San Francisco, CA 94103
333 10th St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The property at 331-333 10th Street is a 2-story, 2-unit multi-family residential building constructed in 1907, currently owned by Santiago M Vallinas. The building has undergone several significant maintenance and improvement projects over the years, including a complete reroofing in 2015 costing $8,480, and multiple street space permits issued between 2017-2018. Historical records show various improvements in the late 1990s and early 2000s, including the installation of five windows, vinyl siding, electrical upgrades (including receptacles, lights, and smoke detectors), and structural modifications such as the replacement of a bearing wall with a glulam beam.

The building experienced notable issues in 2015, when multiple housing violations were recorded regarding water damage and kitchen appliance problems, though these were abated by September 2015. Earlier complaints from 2006 and 1998 indicated various maintenance issues, including drainage problems and electrical concerns with no heat. Recent years have shown ongoing concerns in the immediate vicinity, particularly in 2023 with two open cases related to pavement defects and human or animal waste on the street, though these are external to the building itself. The most recent building-related issue was a missing side sewer vent cover reported in July 2024, which has since been resolved.

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

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Risk rating

How 331-333 10Th St'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
87th percentile

Out of 430 buildings in this neighborhood, 56 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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 (ZIP code)

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

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 77.7%
Moderate concern 13.1%
Severe concern 9.3%
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

331-333 10Th St event timeline

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

2026
311 Request Feb 10
Garbage and debris
furniture

See all 2 events

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

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Every record we have

Full data for 331-333 10Th St 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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