Free SF apartment background check

804-806 41St Ave

Outer Richmond, SF 94121 1683034 2 units · 2 fl · 1921

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 Outer Richmond
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 804-806 41St 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 1921
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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
Units2
Floors2
Year built1921
Total area2,040 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1683034
Ownership

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

Owner name
Oconnor Brendan F
Mailing address
806 41st Ave San Francisco CA 94121
Last sale
081211

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.

804 41st Ave, San Francisco, CA 94121
806 41st Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The two-unit residential building at 804-806 41st Avenue in San Francisco's Outer Richmond neighborhood is a two-story flats and duplex structure built in 1921, currently owned by Brendan F. O'Connor. This property underwent significant renovations and repairs following a fire incident in December 2008 that caused substantial damage, particularly to the rear deck and interior finishes. The extensive $100,000 repair work completed in 2009 included restoration of damaged walls and ceilings on both floors, bathroom and kitchen fixture replacements, rear window and door replacements, electrical and HVAC system repairs, and insulation installation. The building's infrastructure was also substantially upgraded during this period, with new furnaces installed for each unit, complete rewiring with new subpanels, and various plumbing improvements including kitchen and bathroom remodeling, new water heater installation, and sewer pipe repairs in 2016.

More recent history shows ongoing maintenance and compliance activity, including a tenant buyout at 806 41st Avenue in July 2024 for $37,532 involving two tenants. The building has experienced typical urban dwelling issues as evidenced by multiple 311 calls throughout 2024, primarily related to street cleaning, parking enforcement, and waste management. The most recent building-related complaints and violations are not active, suggesting compliance with city regulations, though there have been various municipal service requests regarding public infrastructure and street maintenance in the surrounding area, including one shared spaces violation in October 2023 that was fully abated.

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 804-806 41St 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
96th percentile

Out of 1040 buildings in this neighborhood, 42 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
93%
No DBI
violation
7%
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.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

DBI complaint rate, owner's portfolio

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

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 85.8%
Moderate concern 10.0%
Severe concern 4.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

804-806 41St 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

804-806 41St Ave event timeline

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

2024
Tenant Buyout Jul 08
Tenant buyout · $37,532
2 tenant(s)

See all 1 events

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

Unlock complete timeline
Every record we have

Full data for 804-806 41St 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 804-806 41St Ave
Get alerted the moment a new violation or complaint is filed.