Free SF apartment background check

1307-1309 4Th Ave

Inner Sunset, SF 94122 1759002 2 units · 2 fl · 1914

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 Inner Sunset
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

Rent & eviction protection

Is 1307-1309 4Th 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 1914
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 built1914
Total area3,200 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1759002
Ownership

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

Owner name
Tong Fmly Tr A
Mailing address
Tong Audrey Trustee 470 17Th Ave San Francisco CA 94121
Last sale
000000

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.

1307 04th Ave, San Francisco, CA 94122
1309 04th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1307-1309 4th Avenue in San Francisco's Inner Sunset neighborhood is a two-story multi-family residential building constructed in 1914, containing three units and classified as Flats & Duplex. The most recent significant activity involves two identical permits issued in March 2024, each costing $3,000, to comply with physical report #CC-8644, indicating current regulatory requirements are being addressed. Notably, the building has a history of unauthorized unit issues, with an investigation in 1999 confirming an illegal basement unit, and in 2003, two permits were completed for converting bathroom facilities into storage space, suggesting previous attempts to modify unit configurations. The building also experienced security concerns in 1998-1999, when a resident reported insufficient door locks leading to two burglaries within 1.5 years, though this issue was resolved within a month of reporting.

The property's maintenance and safety record shows various service requests and minor incidents, including multiple reports of graffiti in 2018 and more recently in 2023, water quality complaints in 2018, and occasional issues with abandoned vehicles nearby. Historical records show consolidation of facilities with the removal of kitchen facilities and a shower stall from an unoccupied non-conforming ground floor area in 2003, which was completed. While these modifications suggest proactive maintenance, the building's history of unauthorized modifications and unit configurations raises questions about past regulatory compliance, though recent permits indicate steps are being taken to address current requirements. The property is currently managed by the Tong Family Trust A, with no active complaints or violations on record as of October 2023.

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 1307-1309 4Th 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
77th percentile

Out of 1493 buildings in this neighborhood, 343 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

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 84.8%
Moderate concern 11.5%
Severe concern 3.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1307-1309 4Th 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

1307-1309 4Th Ave event timeline

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

2025
Electrical Permit Apr 03
Replaced bad gfi receptacles where needed and tested existing ones in bathrooms and kitchen are to make sure they work properly. moved battery operated smoke detectors in bedrooms & hallways to ceiling from wall and tested them to make sure they work properly.
Complete
Electrical PermitMar 05
Install ground rod 6 ft from existing ground rod and rerun #6 bare copper from main panel. install 3 motion flood lights at breezeway stairway. install 2 lights in back breezeway hallway.

See all 5 events

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

Unlock complete timeline
Every record we have

Full data for 1307-1309 4Th 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 1307-1309 4Th Ave
Get alerted the moment a new violation or complaint is filed.