Free SF apartment background check

1501 Leavenworth St

Nob Hill, SF 94109 0184008 24 units · 4 fl · 1909

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Nob Hill
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

Rent & eviction protection

Is 1501 Leavenworth 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 1909
2 or more units
24 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 1909
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
Units24
Floors4
Year built1909
Total area10,445 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0184008
Ownership

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

Mailing address
Patrick O'donnell Po Box 320065 San Francisco CA 94132
Last sale
031312

Landlord portfolio

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

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Augrented Insights
Initial analysis

1501 Leavenworth Street is a 4-story, 24-unit multi-family residential building located in San Francisco's Nob Hill neighborhood, built in 1909 and currently owned by 1501 Leavenworth Street LLC. The building has undergone several significant structural improvements, including a completed soft-story retrofit in 2016 (Tier 2) with associated seismic strengthening, and most recently, a kitchen and bathroom remodel in 2021 following a construction complaint. The property has experienced various maintenance and safety-related issues over its history, including multiple fire safety violations (most recently a sleeping area requirement violation in December 2023) and routine housing inspections that revealed security and fire safety concerns, all of which were eventually addressed and closed.

Recent concerns at the property include multiple 311 calls in late 2024 regarding garbage and debris on the property and surrounding area, with the most recent being related to noise in October 2024. The building's history includes three instances of carbon monoxide detector activation (though all with no CO detected), one contained cooking fire, and several false alarms. Records show consistent maintenance efforts, with recent plumbing and electrical work completed in 2021, including kitchen and bathroom updates and gas line installations. Historical permits reveal past roof work (1990), and the building has maintained compliance with seismic safety requirements through its Tier 2 soft-story retrofit completion. While historical violations and complaints have been numerous, they appear to have been systematically addressed and resolved, with no active violations currently outstanding except for the recent sleeping area requirements citation.

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

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Risk rating

How 1501 Leavenworth 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
8th percentile

Out of 1125 buildings in this neighborhood, 1035 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
19%
No DBI
violation
81%
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.

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 15.8%
Moderate concern 35.8%
Severe concern 48.5%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1501 Leavenworth St apartment reviews

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On the map

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The story over time

1501 Leavenworth St event timeline

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

2026
311 Request Jun 30
Garbage and debris
mattress
311 RequestJun 15
Garbage and debris

See all 16 events

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

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Every record we have

Full data for 1501 Leavenworth 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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