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1730 9Th Ave

Inner Sunset, SF 94122 2041034 2 units · 2 fl · 1974

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

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 1730 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 1974
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 1974
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 built1974
Total area2,904 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2041034
Ownership

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

Mailing address
520 87th Street Daly City CA 94015
Last sale
July 11, 2002

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 1730 9th Avenue in San Francisco's Inner Sunset neighborhood, owned by Dimayuga 2005 Trust and constructed in 1974, is currently undergoing substantial safety upgrades. As of April 2024, permits have been issued for the installation of a comprehensive fire sprinkler system throughout the building, including 61 sprinkler heads and a dedicated fire service line, with additional fire alarm monitoring work planned under a separate permit. This follows a pattern of safety improvements, as the building previously received a new roof in 2014 and underwent some initial fire safety upgrades in 2002 with the installation of a pull station and bell system.

The property has experienced several infrastructure-related challenges in 2024, particularly concerning construction work and its impact on public space, with multiple reports of blocked sidewalks due to construction equipment in September and October 2024. Recent plumbing work is also documented, with a permit issued in August 2024 for the installation of a new 2-inch water line. While the building has maintained its residential designation, there were two separate attempts (in 2023 and previously) to change its use to a senior care facility, though both proposals were withdrawn or closed and did not proceed. The property has experienced recurring issues with parking violations in the surrounding area, with multiple reports of blocked driveways and sidewalk parking between 2020 and 2025, though these are outside the building's direct management scope and primarily concern street use. A minor fire incident involving an overheated motor was recorded in the fire database, though no civilian injuries were reported.

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

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Risk rating

How 1730 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
96thpercentile

Out of 1493 buildings in this neighborhood, 60 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
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.

Neighborhood location

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

Building age

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

Building permits, owner's portfolio

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

12-Month risk forecast
Low failure risk 7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

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The story over time

1730 9Th Ave event timeline

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

2025
Plumbing Permit Feb 12
New fire sprinkler system installation per nfpa 13.
Complete
Plumbing PermitFeb 11
Installed a 2" dedicated fire service line per nfpa24.

See all 4 events

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

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Every record we have

Full data for 1730 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 1730 9Th Ave compares to the neighborhood

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