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1626-1628 Folsom St

South of Market, SF 94103 3515014 3 units · 2 fl · 1906

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 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 1626-1628 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 1906
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
M1
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 1906
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
Units3
Floors2
Year built1906
Total area3,005 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3515014
Ownership

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

Mailing address
Young Marvin Hoi-won Truste 101A Clay St # 217 San Francisco CA 94133
Last sale
November 15, 2017

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.

1628 Folsom St, San Francisco, CA 94103
1626 Folsom St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The two-story multi-family residential building at 1626-1628 Folsom Street, constructed in 1906 and containing 3 units with a ground-level store, has undergone several significant renovations and faced multiple safety inspections over the past few decades. The most substantial recent work occurred in 2017-2018, involving kitchen renovations, window replacements, and various interior improvements, though this work attracted multiple complaints about unauthorized construction activities and unpermitted work. During this period, there were also several construction-related noise complaints from neighbors in January 2018. The property has had consistent maintenance attention, including a completed reroofing project in 2008 costing $11,000.

The building has experienced various maintenance and safety-related incidents, particularly in 2017 when multiple fire code violations were documented, including issues with the sprinkler/standpipe systems, alarm systems, and fire extinguisher maintenance, though most of these were later resolved. More recent history shows a pattern of urban challenges typical for the South of Market neighborhood, including graffiti incidents (most recently in 2024), and several complaints regarding bicycle lane blockages recorded in 2023. Recent utility-related concerns include a water leak incident in late 2023, which was determined to be the property owner's responsibility. The property has also seen some general maintenance issues requiring attention, as evidenced by 311 calls for garbage/debris removal and various public service requests between 2023 and 2024.

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

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Risk rating

How 1626-1628 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
42ndpercentile

Out of 430 buildings in this neighborhood, 249 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
62%
No DBI
violation
38%
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.

Neighborhood (ZIP code)

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

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

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 38%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1626-1628 Folsom St apartment reviews

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On the map

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The story over time

1626-1628 Folsom St event timeline

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

2025
311 Request Oct 05
Not offensive
building residential
311 RequestSep 20
Not offensive

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1626-1628 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 1626-1628 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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