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1146-1148 Leavenworth St

Nob Hill, SF 94109 0247019 2 units · 2 fl · 1908

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Nob Hill — not a forecast
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 1146-1148 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 1908
2 or more units
2 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 1908
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
Units2
Floors2
Year built1908
Total area3,760 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0247019
Ownership

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

Mailing address
1146 Leavenworth St San Francisco CA 94109
Last sale
November 02, 1993

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

1148 Leavenworth St, San Francisco, CA 94109
1146 Leavenworth St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The two-unit residential building at 1146-1148 Leavenworth Street in San Francisco's Nob Hill neighborhood is a 2-story flats and duplex structure built in 1908, currently owned by David & Mary Alice Basso Re. The building's history reveals several significant events regarding unit configuration and safety compliance. Most notably, in 2021, there was a building complaint regarding a possible unpermitted third unit with a full kitchen on the lowest floor, though this concern was marked as not active by October 2021. In 2009, the property underwent essential safety upgrades to address violations, including electrical work, plumbing improvements, and water heater modifications, all of which were completed. Earlier renovations date back to the 1980s, including kitchen and bathroom remodeling (1983), interior work (1988), and structural improvements (1984). Two attempts to convert guestroom and storage spaces into a third unit (2002) were cancelled, and a reroofing project from 1996 is noted as expired.

The building's recent maintenance history shows several 311 calls between 2018 and 2023, primarily related to street cleaning issues around the property, including reports of loose garbage. However, these external maintenance issues are not uncommon in urban environments and were all marked as resolved. Planning records indicate prior applications for condo conversions and parking variances for the converted ground floor unit, both of which were approved, suggesting that the building has undergone formal conversion processes with appropriate regulatory oversight. The property's documented history reflects a structure that has received various upgrades and modifications over the years, with particular attention to safety compliance in more recent years.

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

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Risk rating

How 1146-1148 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

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
33rdpercentile

Out of 1125 buildings in this neighborhood, 754 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
44%
No DBI
violation
56%
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.

Neighborhood (ZIP code)

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

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 56%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1146-1148 Leavenworth St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

1146-1148 Leavenworth St event timeline

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

2025
311 Request Oct 13
Garbage and debris
other bagged boxed contained garbage

See all 2 events

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

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Every record we have

Full data for 1146-1148 Leavenworth St apartments

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

Side by side

How 1146-1148 Leavenworth St compares to the neighborhood

This building against comparable properties in Nob Hill. Toggle filters to narrow the peer group.

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