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946 Leavenworth St

Downtown, SF 94109 0276022 21 units · 4 fl · 1913

This building has a higher-than-average number of open problems nearby. 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 Downtown
At or below average
avg 6.9
6
FewerMore

This building has 6 novs (7y), at or below the Downtown average of 6.9.

Rent & eviction protection

Is 946 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 1913
2 or more units
21 units
Property type
Multi-Family Residential
Zoning
RM4
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
Units21
Floors4
Year built1913
Total area12,482 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0276022
Ownership

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

Owner name
Hawthorne/Stone Pine St Tru
Mailing address
Rob Cassi, Trustee 1704 Union St San Francisco CA 94123
Last sale
042817

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.

1191 Pine St, San Francisco, CA 94109
1185 Pine St, San Francisco, CA 94109
946 Leavenworth St, San Francisco, CA 94109
Augrented Insights
AI summary

The 21-unit, 4-story multi-family residential building at 946 Leavenworth Street, owned by Hawthorne/Stone Pine Street Trust, has undergone several significant renovations and faced multiple maintenance challenges since its construction in 1913. Most notably, there have been recurring heating system issues, with multiple complaints about inadequate heat between 2016 and 2022, including a documented temperature drop below 60 degrees in Unit 44 in May 2022. The building underwent a seismic retrofit in 2010 costing $140,000 and has seen various system upgrades, including a water main replacement (2016), backflow prevention device installation (2014), and the removal of electric heaters from seven units in 2010.

The property experienced a series of violations in 2013 related to boiler permits, which were subsequently resolved by September 2013. More recently, there was a sprinkler/standpipe systems issue reported and corrected in August 2023. The building's maintenance history shows regular infrastructure updates, including plumbing work (such as floor sink replacements and furnace installation in 2011), electrical system improvements, and various unit renovations between 2006 and 2016. Recent external reports from 2024 indicate ongoing challenges in the surrounding area, including multiple cases of abandoned debris and cleaning issues documented through 311 calls, though these are external to the building's structural and maintenance concerns.

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Risk rating

How 946 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
48th percentile

Out of 448 buildings in this neighborhood, 233 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
17%
No DBI
violation
83%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 15.2%
Moderate concern 30.1%
Severe concern 54.7%
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

946 Leavenworth St event timeline

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

2026
311 Request Jun 14
Garbage and debris
other loose garbage debris yard waste
311 RequestJun 10
Garbage and debris

See all 16 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 946 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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