Free SF apartment background check

2424-2428 Folsom St

Inner Mission, SF 94110 3611006 3 units · 3 fl · 1907

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

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 2424-2428 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 area5,388 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3611006
Ownership

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

Owner name
Rosillo Alejandro
Mailing address
76 Nebraska St San Francisco CA 94110
Last sale
052200

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

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

2424 Folsom St, San Francisco, CA 94110
2426 Folsom St, San Francisco, CA 94110
2428 Folsom St, San Francisco, CA 94110
Augrented Insights
Initial analysis

This three-unit multi-family residential building, located at 2424-2428 Folsom Street in the Inner Mission, was constructed in 1907 and is currently owned by Alejandro Rosillo. The property has undergone several significant modifications over the years, most notably the construction of a garage in the basement level in 2009 ($96,000 project), though this work required multiple subsequent permits and has not yet been fully completed, with a recent permit issued in September 2024 for its recommencement and completion at a cost of $50,000. The building experienced considerable disruption between 2021-2022, with multiple complaints regarding unpermitted construction work, foundation issues, and safety concerns, including exposed plumbing and hazardous conditions. These issues prompted shoring work in October 2021 and the completion of garage bathroom plumbing in July 2022.

The property has faced numerous maintenance and safety challenges over the years, with multiple violations recorded in 2004 concerning plumbing, fire safety, stairs, windows, floors, ceilings, sanitation, heating, and security requirements - though these were all abated by June 2013. More recent issues include recurring sewer problems, with multiple service requests in late 2023 and December 2024 documenting sewage backup issues from vent pipes and catch basins. Several tenant complaints have been filed over the years, including concerns about heating, water pressure, maintenance issues, and safety hazards. The building's electrical system saw a significant upgrade in 2005 with a 200-amp underground conversion, and more recent permits show continued electrical work related to the garage and bathroom facilities. Recent 311 calls have primarily focused on parking enforcement and street cleaning issues, with multiple citations issued for driveway blocking between 2023-2025. While the property has experienced multiple violations and complaints, records show that most historical issues have been addressed, though some recent complaints regarding construction noise and potential safety hazards remain active as of 2021.

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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 2424-2428 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
54th percentile

Out of 2380 buildings in this neighborhood, 1095 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
65%
No DBI
violation
35%
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.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month severity forecast
No violation 43.5%
Moderate concern 23.8%
Severe concern 32.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

2424-2428 Folsom St apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
The story over time

2424-2428 Folsom St event timeline

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

2025
Building Permit Dec 26
Recommencement and completion of work approved under 200912103019
$10,000 · Issued

See all 9 events

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

Unlock complete timeline
Every record we have

Full data for 2424-2428 Folsom St apartments

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

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

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

Watch 2424-2428 Folsom St
Get alerted the moment a new violation or complaint is filed.