Free SF apartment background check

400 43Rd Ave

Outer Richmond, SF 94121 1474036 2 units · 2 fl · 1948

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 400 43Rd 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 1948
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 built1948
Total area2,350 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1474036
Ownership

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

Owner name
Trust B
Mailing address
Carol K & Wayne Y Kwan Trus 36 Temescal Ter San Francisco CA 94118
Last sale
000000

Landlord portfolio

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

Unlock complete report
Augrented Insights
Initial analysis

The two-unit residential building at 400 43rd Avenue in San Francisco's Outer Richmond neighborhood is a two-story flats and duplex structure built in 1948. The property, currently owned by Trust B, has undergone several significant renovations and faced some regulatory challenges in recent years. Most notably, a building violation was issued in 2019 for unauthorized construction work, specifically related to two openings created in the ground floor stair lobby, which was subsequently resolved in 2020-2024 through proper permitting and completion of the work. In 2021, Unit 402 received comprehensive bathroom improvements, including a bathtub replacement with a shower, new sink installation, wall tiles, and electrical updates, with the work completed at a cost of $14,500. The building has maintained a proactive approach to maintenance, evidenced by a complete reroofing project in 2020 ($8,000), termite repairs in 2015 ($33,000), and historical dry rot repairs in 1998.

The property has experienced some environmental and safety-related issues typical of urban settings, including several 311 calls in 2024 regarding street maintenance, graffiti on postal facilities, and abandoned vehicles. There was also one recorded fire incident involving outside rubbish in an unspecified year, though no civilian injuries were reported. The building's recent history shows a pattern of proper maintenance and compliance with building codes, particularly following the 2019 violation notice, with all subsequent work being completed under proper permits and inspections, including the installation of new windows and structural modifications. The property has undergone necessary updates to comply with modern standards while addressing historical maintenance needs, such as the significant termite repairs in 2015 and earlier dry rot issues in 1998.

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 400 43Rd 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
93th percentile

Out of 1040 buildings in this neighborhood, 73 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
92%
No DBI
violation
8%
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.

Neighborhood location

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

DBI complaints, owner's portfolio

Complaints across all of this owner's buildings over 7 years.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 88.6%
Moderate concern 9.4%
Severe concern 2.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

400 43Rd 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

400 43Rd Ave event timeline

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

2021
Plumbing Permit Mar 15
Unit 402: replace current bathtub with shower and replace current sink with new sink.
Complete
Electrical PermitMar 15
Unit 402: replace one bathroom ventilation fan and one outlet switch.

See all 5 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 400 43Rd 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 400 43Rd Ave
Get alerted the moment a new violation or complaint is filed.