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1801 Jefferson St

Marina, SF 94123 0913001 18 units · 3 fl · 1927

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Marina — not a forecast
At or below average
avg 1.1
0
FewerMore

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

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 1801 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 1927
2 or more units
18 units
Property type
Multi-Family Residential
Zoning
RM3
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1927
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units18
Floors3
Year built1927
Total area12,237 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0913001
Ownership

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

Mailing address
William & Anna O'brien, Tru 1590 Granada Dr Burlingame CA 94010
Last sale
July 27, 1990

Landlord portfolio

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

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Augrented Insights
Initial analysis

The O'Brien Family Trust Dtd 20 owns this 18-unit, 3-story multi-family residential building located at 1801 Jefferson St in the Marina neighborhood. Built in 1927, the property has undergone several significant improvements over the years, with the most recent being a comprehensive fire alarm system upgrade completed in January 2024 at a cost of $46,255, including the installation of low-frequency sounders in sleeping areas to comply with current safety codes. The building has a history of addressing fire safety concerns, with multiple fire complaints and violations being corrected, including issues related to fire extinguishers, alarm systems, and sleeping area requirements between 2009 and 2024.

The property has undergone various major renovations, including foundation work, window replacements, and roofing projects in the late 1980s and early 1990s. While the building has maintained a generally active response to safety concerns, including promptly addressing fire safety issues identified through inspections and complaints, there have been some recurring themes in the building's maintenance history. The building's most recent fire safety upgrade in early 2024 demonstrates ongoing commitment to resident safety, and the property management has typically responded promptly to violations and complaints when they occur. Recent 311 calls from 2024 have primarily concerned external issues like abandoned vehicles and street cleaning matters, rather than building-specific concerns.

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

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Risk rating

How 1801 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
15thpercentile

Out of 988 buildings in this neighborhood, 840 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
45%
No DBI
violation
55%
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.

Number of units

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

Building size

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

Neighborhood location

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

12-Month risk forecast
Moderate failure risk 55%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1801 Jefferson St apartment reviews

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On the map

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The story over time

1801 Jefferson St event timeline

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

2026
311 Request Jul 05
Blocking driveway cite tow
Parking Enforcement
311 RequestJun 08
Garbage and debris

See all 10 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1801 Jefferson St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 1801 Jefferson St compares to the neighborhood

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