Free SF apartment background check

6146-6148 California St

Lake Street, SF 94121 1383024 3 units · 2 fl · 1909

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Lake Street
Above average
avg 0.6
3
FewerMore

This building has 3 novs (7y), above the Lake Street average of 0.6.

Rent & eviction protection

Is 6146-6148 California 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 1909
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RM1
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
Floors2
Year built1909
Total area2,760 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1383024
Ownership

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

Owner name
Toyoshima Michelle S-Wu
Mailing address
334 21st Ave San Francisco CA 94121
Last sale
121516

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.

6148 California St, San Francisco, CA 94121
6146 California St, San Francisco, CA 94121
Augrented Insights
AI summary

This two-story multi-family residential building, located at 6146-6148 California Street in the Lake -- The Presidio neighborhood, was constructed in 1909 and contains three units plus a commercial space. The property has undergone several significant maintenance and improvement projects over the past couple of decades, with the most recent major work occurring in 2014, when multiple updates were completed including a kitchen remodel, water heater upgrades, window replacements, and electrical system improvements. The building has experienced recurring maintenance issues, particularly regarding water damage and drainage problems. Most notably, in early 2024, the property was cited for inadequate roof drainage and gutter issues, which were reportedly causing water problems for neighboring properties and were associated with rodent infestation concerns. This violation, filed in January 2024, was documented as being abated by April 2024.

Throughout its history, the building has faced various maintenance challenges, including water damage repairs, dry rot issues, and plumbing problems. A significant complaint from March 2017 reported multiple maintenance issues affecting habitability, including broken bathtub drainage, leaking windows, wall damage, kitchen sink overflow, and concerns about old carpet affecting a tenant with asthma. The property has also experienced regular upkeep work such as window replacements, roof maintenance, and awning installations, with some permits for work being canceled or expired over the years. Recent 311 calls regarding the property have primarily focused on external issues such as sidewalk cleaning and debris, with reports dating from 2016 through 2024, though these are not necessarily indicative of building maintenance problems.

Create a free account to read the full AI summary and unlock the complete report.
Risk rating

How 6146-6148 California 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
16th percentile

Out of 660 buildings in this neighborhood, 554 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
63%
No DBI
violation
37%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

12-Month severity forecast
No violation 43.7%
Moderate concern 51.6%
Severe concern 4.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

6146-6148 California 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

6146-6148 California St event timeline

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

2026
311 Request Jan 14
Garbage and debris
other loose garbage debris yard waste

See all 8 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 6146-6148 California 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 6146-6148 California St
Get alerted the moment a new violation or complaint is filed.