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1052-1058 Folsom St

South of Market, SF 94103 3731021 4 units · 2 fl · 1916

A handful of records on file over the last seven years, and our model puts this building at a low 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
At or below average
avg 3.3
0
FewerMore

This building has 0 novs (7y), at or below the South of Market average of 3.3.

Rent & eviction protection

Is 1052-1058 Folsom 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 1916
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
SLR
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 1916
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
Units4
Floors2
Year built1916
Total area
Property typeMulti-Family Residential
Tax statusNone
Blocklot3731021
Ownership

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

Mailing address
Sergio Iantorno, Member 2170 Sutter St San Francisco CA 94115
Last sale
June 15, 2005

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.

1052 Folsom St, San Francisco, CA 94103
1056 Folsom St, San Francisco, CA 94103
1058 Folsom St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The property at 1052-1058 Folsom Street is a 4-unit, 2-story multi-family residential building with ground floor commercial space, constructed in 1916 and currently owned by Golden Properties LLC. The building has undergone significant modifications over the years, with major renovations occurring between 2007-2011 primarily focusing on commercial space improvements including ADA upgrades, kitchen equipment installations, and electrical system updates. Notable renovation milestones include the conversion of a warehouse to a deli in 1997, followed by multiple permits in 2009-2010 for restroom upgrades, kitchen equipment improvements, and electrical work, along with plumbing installations for floor sinks and a grease trap. Two fire safety complaints regarding illegal occupancy and blocked exits were filed in 2019 but were corrected by December 2019. Recent maintenance issues have been documented through 311 calls, particularly in late 2024, with multiple reports of sidewalk cleaning needs including instances of human waste or urine, though most were resolved promptly.

The property is currently at a pivotal moment of potential transformation, with significant development proposals on record including plans for a new seven-story, mixed-use building that would replace the existing structure, containing 63 residential units and ground floor commercial retail space with 16 off-street parking spaces. This proposed project has received various approvals including Conditional Use Authorization and Large Project Authorization, with a construction timeline potentially impacting current tenants. Recent building complaints include reports of unauthorized sidewalk obstruction (resolved within 9 days in 2021) and a 2009 electrical code violation regarding concealed outlets and cables, though this was also subsequently addressed. The building's systems have generally been maintained through regular permits for repairs and upgrades, including the installation of a new water heater, bathroom renovations, and electrical system improvements, with no reported fire incidents since 2019.

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

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Risk rating

How 1052-1058 Folsom 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
57thpercentile

Out of 430 buildings in this neighborhood, 185 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
75%
No DBI
violation
25%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Number of units

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

12-Month risk forecast
Low failure risk 25%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1052-1058 Folsom St apartment reviews

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On the map

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The story over time

1052-1058 Folsom St event timeline

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

2026
311 Request Apr 16
Other illegal parking
Parking Enforcement

See all 7 events

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

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Every record we have

Full data for 1052-1058 Folsom St apartments

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

Side by side

How 1052-1058 Folsom St compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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