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1631-1637 Folsom St

South of Market, SF 94103 3522067 4 units · 2 fl · 1912

Nothing on record for this building in the last seven years. Our model still sees a moderate chance of maintenance problems in the next 12 months, from the owner's wider portfolio and the surrounding area rather than from anything recorded here. 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 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 1631-1637 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 1912
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 1912
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 built1912
Total area3,012 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3522067
Ownership

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

Mailing address
1629 Folsom St San Francisco CA 94103
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.

1635 Folsom St, San Francisco, CA 94103
1631 Folsom St, San Francisco, CA 94103
1637 Folsom St, San Francisco, CA 94103
1633 Folsom St, San Francisco, CA 94103
Augrented Insights
Initial analysis

The two-story multi-family residential building at 1631-1637 Folsom Street, located in San Francisco's South of Market neighborhood, is a 4-unit apartment complex constructed in 1912 and currently owned by Hector M Correa Car. The building's maintenance record shows minimal major work, with the only significant permitted work being a complete reroofing project undertaken in 1988. A routine safety inspection conducted by Housing Inspection Services in May 2008 noted comments regarding fire extinguishers inside the units, though this violation was promptly addressed and marked as not active on the same day.

The property has experienced numerous street-related issues in recent years, particularly concerning parking violations and street maintenance. Between 2020 and 2024, there were multiple reports of vehicles blocking bicycle lanes, driveways, and street cleaning issues, including garbage and debris problems. Notably, there were two documented instances of driveway blocking in 2022 that resulted in one vehicle being towed. Most recently, in April 2022, there was a report of a damaged tree with a hanging limb that remains in progress. The building's violation and complaint history suggests generally prompt resolution of issues directly related to the building itself, with most concerns arising from external street conditions rather than the building's internal systems or maintenance.

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

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Risk rating

How 1631-1637 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
49thpercentile

Out of 430 buildings in this neighborhood, 219 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
68%
No DBI
violation
32%
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.

Neighborhood (ZIP code)

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month risk forecast
Moderate failure risk 32%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1631-1637 Folsom St apartment reviews

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On the map

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Buildings nearby
8 found
The story over time

1631-1637 Folsom St event timeline

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

2026
311 Request Apr 14
Damaged tree
hanging limb

See all 2 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1631-1637 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 1631-1637 Folsom St compares to the neighborhood

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