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1926-1928 Jefferson St

Marina, SF 94123 0911007A 3 units · 2 fl · 1935

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 Marina
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Marina average of 1.1.

Rent & eviction protection

Is 1926-1928 Jefferson 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 1935
2 or more units
3 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
Units3
Floors2
Year built1935
Total area4,200 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0911007A
Ownership

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

Owner name
Ottorino E Pasian Trust
Mailing address
Pasian Ottorino E Trustee 1926A Jefferson St San Francisco CA 94123
Last sale
041304

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.

1928 Jefferson St, San Francisco, CA 94123
1926 Jefferson St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The property at 1926-1928 Jefferson Street in San Francisco's Marina neighborhood is a two-story, three-unit multi-family residential building constructed in 1935 and currently owned by the Ottorino E Pasian Trust. The building has a troubling history of complaints and potential code violations, most notably regarding unauthorized units and safety concerns. As of December 2023, there are active concerns about an unauthorized rooftop unit (described as an "adjunct 1 bed/bath unit" with kitchen facilities) that has reportedly been rented in the past year, creating fire safety concerns due to lack of proper firewalls. This follows earlier complaints in 2022 about unauthorized residential use of the top unit and rooftop, with access via non-code-compliant exterior stairs. The building has undergone various permitted modifications over the years, including seismic reinforcing work in 1990 (now expired), ground floor bedroom and bathroom construction in 1998, and more recent roof-related work.

The property has experienced recurring plumbing and sewer issues, with multiple sewage backup incidents reported between 2020 and 2021, and a recent plumbing issue reported in December 2024, suggesting ongoing infrastructure challenges. There were also historical concerns about illegal short-term rentals in 2018 and unauthorized garage conversion issues. Recent building permit activity includes a 2025 application for a roof deck addition, though this is currently in triage status. The property has had several maintenance issues, including tree removal permits in 2020-2021 and various traffic-related incidents on Jefferson Street, though these are less critical to resident safety. While some historical complaints have been resolved and records show various completed permits, the persistence of unauthorized unit concerns and recent maintenance issues warrants attention, particularly regarding safety compliance.

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

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Risk rating

How 1926-1928 Jefferson 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
52th percentile

Out of 988 buildings in this neighborhood, 474 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

DBI complaints, owner's portfolio

Complaints across all of this owner's buildings over 7 years.

Construction spend, owner's portfolio

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

12-Month severity forecast
No violation 68.1%
Moderate concern 19.4%
Severe concern 12.5%
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

1926-1928 Jefferson St event timeline

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

2026
Building Permit Mar 18
Addressing permit only. add 1924 jefferson st for the ground floor unit within a three-unit residential building. link to parcel 0911-007a.
$1 · Issued
Building PermitFeb 13
Revision to permit pa #202506068160. to new deck and new 1 hour wall at existing stairs.

See all 11 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1926-1928 Jefferson 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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