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1485-1487 9Th Ave

Inner Sunset, SF 94122 1844018 2 units · 2 fl · 1908

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Inner Sunset — not a forecast
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 1485-1487 9Th 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 1908
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1908
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1908
Total area3,190 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1844018
Ownership

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

Owner name
Mailing address
Seto David Wai Hung & Donna 1485 9Th Ave San Francisco CA 94122
Last sale
February 16, 1994

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

1485 09th Ave, San Francisco, CA 94122
1487 09th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The two-unit residential building at 1485-1487 9th Avenue in San Francisco's Inner Sunset neighborhood is a two-story flats and duplex structure owned by the Seto Family Trust and was constructed in 1908. The building has undergone several significant improvements and modifications over the years, with the most substantial work taking place between 2005-2012. A major renovation in 2005 ($200,000) included vertical and horizontal additions and room rearrangements, followed by comprehensive plumbing and electrical upgrades in 2007 that added new kitchens, bathrooms, lighting, and electrical systems. The property has also been environmentally upgraded with the installation of a solar panel system in 2012, consisting of 6 roof-mounted PV modules. More recent improvements include the addition of an automatic garage door opener in 2007, and more electrical upgrades in 2012 with the installation of a 30-amp subpanel.

The building's maintenance history shows one significant fire safety issue in 2010 involving blocked exits, which was promptly corrected on the same day it was reported. Currently, there are multiple recent sanitation-related concerns, with eight reports of overflowing city garbage cans between January 5-14, 2025, though these are primarily municipal service issues rather than building-specific problems. The property has maintained active compliance with building codes, with proper permits obtained for all major modifications, and no recent building complaints or violations are currently on record. The building's systems have been regularly updated, including plumbing upgrades (new kitchens and bathrooms), comprehensive electrical system improvements, and safety features like smoke detectors and garaged door automation, indicating proactive maintenance by the property owners.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 1485-1487 9Th 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
44thpercentile

Out of 1493 buildings in this neighborhood, 836 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

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.

12-Month risk forecast
Low failure risk 22%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1485-1487 9Th Ave apartment reviews

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The story over time

1485-1487 9Th Ave event timeline

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

2025
311 Request Aug 14
Other
Sewer
DBI ComplaintJul 16
Noise issue - construction - private property (dbi-bi)

See all 2 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1485-1487 9Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 1485-1487 9Th Ave compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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