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2433-2437 Folsom St

Inner Mission, SF 94110 3612036 3 units · 3 fl · 1907

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 2433-2437 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 1907
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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.

Building characteristics
Units3
Floors3
Year built1907
Total area4,605 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot3612036
Ownership

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

Owner name
Lewis George
Mailing address
2433 Folsom St San Francisco CA 94110
Last sale
073101

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

2433 Folsom St, San Francisco, CA 94110
2435 Folsom St, San Francisco, CA 94110
2437 Folsom St, San Francisco, CA 94110
Augrented Insights
Initial analysis

The property at 2433-2437 Folsom Street is a three-unit, three-story multi-family residential building constructed in 1907, currently owned by Lewis George. The building has undergone several significant improvements and maintenance work over the years, including a vinyl siding installation on the rear right side in 2007, reroofing in 1995, and an electrical upgrade with a 100-amp underground conversion service completed in 2004. While routine inspections occurred in the late 1990s and early 2000s, more concerning issues have emerged in recent years, particularly regarding potential illegal unit conversions. Most notably, there have been multiple complaints between 2019 and 2022 regarding an allegedly illegal unit in the unfinished basement, with the most recent complaint filed in June 2024 concerning egress obstruction in the corridor. A water leak complaint from 2010 was resolved by 2012 through Housing Inspection Services.

The building has experienced various environment-related incidents near its vicinity, as documented through 311 calls between 2020 and 2024. These incidents primarily involve street cleaning issues, including reports of garbage, debris, and waste, as well as multiple parking-related violations such as vehicles blocking bicycle lanes and sidewalks. While these external issues don't directly affect the building's infrastructure, they may impact the overall neighborhood environment. The property's maintenance history shows periodic upkeep of its essential systems, though the ongoing concerns about the basement conversion and egress obstruction remain the most significant issues on record. The building's permit history demonstrates regular maintenance and improvements, suggesting historical attention to preserving the property's structure and systems, with the most recent notable modification being the electrical upgrade nearly two decades ago.

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

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Risk rating

How 2433-2437 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

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
19th percentile

Out of 2380 buildings in this neighborhood, 1928 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
42%
No DBI
violation
58%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

12-Month severity forecast
No violation 30.3%
Moderate concern 29.8%
Severe concern 39.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

2433-2437 Folsom St event timeline

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

2024
DBI Complaint Jun 10
Egress obstruction corridor
Housing Inspection Services

See all 2 events

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

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Every record we have

Full data for 2433-2437 Folsom St apartments

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

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