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54-64 Sumner St

South of Market, SF 94103 3730046 6 units · 2 fl · 1909

A handful of records on file over the last seven years, and our model predicts a high risk of further maintenance problems 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 South of Market — not a forecast
Above average
avg 3.3
5
FewerMore

This building has 5 novs (7y), above the South of Market average of 3.3.

Rent & eviction protection

Is 54-64 Sumner 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
6 units
Property type
Multi-Family Residential
Zoning
RED
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
Units6
Floors2
Year built1909
Total area4,760 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3730046
Ownership

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

Owner name
Mailing address
2264 Ralston Rd Sacramento CA 95821
Last sale
October 27, 1992

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.

64 Sumner St, San Francisco, CA 94103
60 Sumner St, San Francisco, CA 94103
62 Sumner St, San Francisco, CA 94103
58 Sumner St, San Francisco, CA 94103
54 Sumner St, San Francisco, CA 94103
56 Sumner St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The two-story, six-unit apartment building at 54-64 Sumner Street in San Francisco's South of Market neighborhood, owned by Carroll Lacey M, has a significant history of safety compliance issues and recent structural improvements. Built in 1909, the property has undergone several important modifications to meet modern safety standards, most notably a seismic retrofit completed in 2023 at a cost of $75,000, following earlier attempts to address soft-story concerns in 2015 which were withdrawn. The building faced several violations in 2022-2024 related to the Mandatory Soft Story Program and associated monitoring requirements, though these were ultimately abated. A substantial set of violations was documented in 2011, including issues with handrails, fire extinguishers, self-closing doors, and building permits, all of which were addressed by April 2011. The property has maintained regular safety inspections since the early 1990s, with routine inspections recorded in 1995, 2007, and 2011.

Recent building safety concerns have been relatively minimal, with only standard discrepancies noted, such as a fire sprinkler system violation in January 2020 that was quickly addressed. The building's most recent fire safety record shows only two incidents in 2020: a false alarm and a malfunctioning smoke detector, neither resulting in injuries. More recently, there has been a series of parking-related issues around the property, with multiple reports of sidewalk parking violations in late 2024, though these are external to the building's safety and maintenance concerns. The most current records indicate that all major safety compliance issues, particularly those related to the soft-story retrofit program, have been resolved, with the building now holding a completed CFC (Certificate of Final Completion) status for the seismic improvements.

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

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Risk rating

How 54-64 Sumner 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
23rdpercentile

Out of 430 buildings in this neighborhood, 331 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
37%
No DBI
violation
63%
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.

Number of units

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

Neighborhood (ZIP code)

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

12-Month risk forecast
High failure risk 63%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

54-64 Sumner St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

54-64 Sumner St event timeline

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

2026
311 Request Jul 31
Garbage and debris
missed route mechanical sweeping
311 RequestJul 25
Encampment

See all 14 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 54-64 Sumner St apartments

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

Side by side

How 54-64 Sumner St compares to the neighborhood

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