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2331 Folsom St

Inner Mission, SF 94110 3593016 3 units · 3 fl · 1904

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
1
FewerMore

This building has 1 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 2331 Folsom 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 1904
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
Floors3
Year built1904
Total area3,528 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3593016
Ownership

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

Owner name
Espinoza Paulina V
Mailing address
Po Box 590206 San Francisco CA 94159
Last sale
050500

Landlord portfolio

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

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Augrented Insights
Initial analysis

The three-story multi-family residential building at 2331 Folsom Street, owned by Paulina V. Espinoza, was constructed in 1904 and contains three units. The property has undergone several significant events, most notably its participation in San Francisco's mandatory Soft Story Retrofit Program, which was documented as a violation in November 2017 when the owner failed to submit the required permit application and plans for seismic retrofit work. This violation, along with associated monthly violation monitoring fees and requirements not to remove an earthquake warning placard, was ultimately abated by March 2018. The building's infrastructure maintenance includes completed reroofing work from 1989 and electrical upgrades for underground utility conversion in 2004.

Recent records show a pattern of false alarm activations from 2017 through 2021, primarily related to the building's alarm system and smoke detectors, though none resulted in actual fires or civilian injuries. The property has experienced an active 311 service record in recent months (2024-2025), with numerous calls related to street cleaning, parking enforcement, and streetlight issues, particularly focusing on problems with vehicles blocking driveways. While these external issues aren't directly related to the building's condition, they reflect the surrounding neighborhood environment. The building's fire safety systems have had multiple activation events, including a cooking fire that was confined to its container, but no serious incidents or injuries have been recorded.

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

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Risk rating

How 2331 Folsom 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
43th percentile

Out of 2380 buildings in this neighborhood, 1357 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
60%
No DBI
violation
40%
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.

Neighborhood (ZIP code)

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

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 36.8%
Moderate concern 17.1%
Severe concern 46.1%
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

2331 Folsom St event timeline

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

2024
311 Request Jul 05
Other excessive noise
Noise

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 2331 Folsom 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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