Free SF apartment background check

801-803 Columbus Ave

Russian Hill, SF 94133 0074003D 3 units · 3 fl · 1933

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 Russian Hill
At or below average
avg 1.9
1
FewerMore

This building has 1 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 801-803 Columbus 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 1933
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
NBEACH
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 built1933
Total area3,840 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0074003D
Ownership

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

Owner name
Dean Lyndon Bayangos Revoc
Mailing address
Bayangos Dean Lyndon Truste 2110 Hillcrest Rd Redwood City CA 94062
Last sale
070808

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.

803 Columbus Ave, San Francisco, CA 94133
801 Columbus Ave, San Francisco, CA 94133
Augrented Insights
Initial analysis

The property at 801-803 Columbus Avenue in Russian Hill is a three-story, multi-family residential building with three units, constructed in 1933, and includes retail space. The building has experienced several significant issues in recent years, most notably a November 2023 violation regarding unpermitted modifications to the commercial space, including the installation of a wet bar, full bathroom, and loft. This violation, which resulted in a March 2024 permit requirement to remove unpermitted work, appears to be closely related to two complaints filed in 2023 regarding unauthorized residential occupancy of the commercial space. The building has a history of maintenance and safety concerns, including an active lead paint hazard violation from 2017, and problems with water drainage systems documented in complaints from 2006 and 2012.

Earlier maintenance work includes a complete reroofing project completed in 2018 at a cost of $24,500, and structural underpinning work in 2003. The property has had multiple fire alarm responses, though none resulted in injuries or confirmed incidents, including false alarms and a gas leak in 2014. Recent exterior maintenance issues have been documented through 311 calls, with reports of garbage, debris, and tree overgrowth affecting the property. The commercial space has a documented history of unauthorized use as a private nightclub and music venue (2018), and there have been multiple inquiries regarding its proper use and occupancy status. The building's current owners are required to remove unauthorized modifications and ensure proper use of the commercial space to comply with recent planning enforcement actions.

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 801-803 Columbus 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
41th percentile

Out of 1133 buildings in this neighborhood, 668 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
69%
No DBI
violation
31%
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.

Building size

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

12-Month severity forecast
No violation 42.6%
Moderate concern 47.6%
Severe concern 9.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

801-803 Columbus 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

801-803 Columbus Ave event timeline

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

2026
311 Request May 17
Garbage and debris
human waste or urine
Plumbing PermitApr 23
Ada bathroom installation

See all 13 events

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

Unlock complete timeline
Every record we have

Full data for 801-803 Columbus 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 801-803 Columbus Ave
Get alerted the moment a new violation or complaint is filed.