Free SF apartment background check

3334 San Bruno Ave

Visitacion Valley, SF 94134 6172024 9 units · 3 fl · 1965

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Visitacion Valley
Above average
avg 1.4
27
FewerMore

This building has 27 novs (7y), above the Visitacion Valley average of 1.4.

Rent & eviction protection

Is 3334 San Bruno Ave 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 1965
2 or more units
9 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
Units9
Floors3
Year built1965
Total area4,616 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6172024
Ownership

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

Owner name
Chen Cai Jin & Zhao Christi
Mailing address
1 Heather Pl Millbrae CA 94030
Last sale
062519

Landlord portfolio

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

Unlock complete report
Augrented Insights
AI summary

The 9-unit, 3-story multi-family residential building at 3334 San Bruno Ave in Visitacion Valley, owned by Chen Cai Jin & Zhao Christi, has undergone several significant improvements and faced multiple compliance challenges since its construction in 1965. Most notably, the building completed mandatory soft-story seismic retrofitting in 2019-2022 (Tier 3) with a $80,000 retrofit that included adding steel moment frames, despite recent complaints in October 2023 regarding potentially incomplete work and exposed metal creating safety concerns. The building underwent substantial exterior maintenance, including multiple siding replacement projects between 2021-2022, converting to Hardi plank siding at a cost of $8,000. A controversial attempt to add three ADUs in the rear of the first-floor garage was filed in 2021 but appears to have faced legal scrutiny, with complaints dating back to 2020 about unauthorized construction.

The property has a history of addressing critical maintenance issues, including a significant bathroom and kitchen remodel in Apartment #3 in 2019, restoration of unit #7 under Ordinance 43-14 for in-law legalization, and various fire safety compliance measures. Multiple building violations were recorded in 2014-2018 related to fire safety, including issues with fire escape maintenance, smoke enclosure doors, and heat supply to occupied rooms, all of which were eventually abated. Recent tenant buyouts in 2019-2020 indicate some turnover, with one unit receiving $45,000 in compensation. The property has also faced various maintenance challenges as evidenced by 311 calls and complaints, including plumbing issues reported in early 2022 and multiple reports of construction work occurring without proper permits in 2022 that attracted neighborhood complaints about early morning construction disrupting residents. The building's exterior and surrounding area have been the subject of periodic sanitation concerns, as reflected in multiple 311 calls regarding garbage and debris between 2024-2025.

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

How 3334 San Bruno Ave'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
0th percentile

Out of 214 buildings in this neighborhood, 214 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
11%
No DBI
violation
89%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Notices of Violation (past 7 years)

DBI issued Notices of Violation at this address over the last 7 years — a direct record of code enforcement activity.

12-Month severity forecast
No violation 9.1%
Moderate concern 25.7%
Severe concern 65.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3334 San Bruno Ave 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

3334 San Bruno Ave event timeline

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

2026
DBI Complaint Jun 17
Work without permit.
Code Enforcement Section
Building Violation (NOV)Apr 29
Building violation

See all 23 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 3334 San Bruno Ave 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 3334 San Bruno Ave
Get alerted the moment a new violation or complaint is filed.