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1019-1023 Leavenworth St

Downtown, SF 94109 0251005 6 units · 3 fl · 1910

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. 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 Downtown — not a forecast
At or below average
avg 6.9
0
FewerMore

This building has 0 novs (7y), at or below the Downtown average of 6.9.

Rent & eviction protection

Is 1019-1023 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 1910
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RC4
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 1910
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
Units6
Floors3
Year built1910
Total area5,565 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0251005
Ownership

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

Owner name
Mailing address
1650 Grant Ave Apt 1 San Francisco CA 94133
Last sale
—

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.

1019 Leavenworth St, San Francisco, CA 94109
1021 Leavenworth St, San Francisco, CA 94109
1023 Leavenworth St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The three-story multi-family residential building at 1019-1023 Leavenworth Street, owned by Hum Ann L, was constructed in 1910 and contains 6 units. The property has experienced several notable incidents and maintenance issues over recent years, with the most significant being a sewage backup incident in November 2023 and multiple garbage and debris-related complaints throughout 2024, including instances of human waste on the premises. In April 2003, the building received two building violations related to fire safety, specifically regarding the central alarm system certification (SFHC 909) and the self-closing devices for passageway doors (SFHC 912), though these violations were resolved by June 2003.

The property has a history of emergency service calls, primarily for public assistance (eight instances of "Assist invalid" calls), water-related issues (three incidents), and one smoke/odor removal situation, with none resulting in civilian injuries. A sidewalk permit was issued in April 2006, and there were plans for interior modifications in 1988 involving a partition wall and one-hour wall of the garage and utility space, though this permit was ultimately canceled. More recently, between late 2023 and 2024, there have been multiple instances of street cleaning needs and parking violations on or near the property, though these were not directly related to the building's condition or management. A Shared Spaces violation regarding emergency vehicle access on the sidewalk was recorded in August 2023 and remains open as of the latest report.

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

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Risk rating

How 1019-1023 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
96thpercentile

Out of 448 buildings in this neighborhood, 18 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
82%
No DBI
violation
18%
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 (ZIP code)

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

12-Month risk forecast
Low failure risk 18%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1019-1023 Leavenworth St apartment reviews

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On the map

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8 found
The story over time

1019-1023 Leavenworth St event timeline

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

2026
311 Request Apr 21
Sewage back-up discharge
from side sewer vent
311 RequestFeb 14
Garbage and debris

See all 5 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1019-1023 Leavenworth St apartments

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

Side by side

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