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1438-1440 9Th Ave

Inner Sunset, SF 94122 1845036 2 units · 2 fl · 1906

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 1438-1440 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 1906
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 built1906
Total area2,250 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1845036
Ownership

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

Owner name
Wang Zhien & Li
Mailing address
1746 18th Ave San Francisco CA 94122
Last sale
032117

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

1440 09th Ave, San Francisco, CA 94122
1438 09th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The two-unit residential building at 1438-1440 9th Avenue in San Francisco's Inner Sunset neighborhood is a two-story flats and duplex structure built in 1906, currently owned by Wang Zhien & Li. The property has undergone several significant renovations, with the most substantial work occurring in 2016, when a comprehensive remodeling project was completed that included updates to two full bathrooms, one kitchen on the second floor, replacement of windows at the rear side, installation of a new water heater, and electrical system upgrades including new lights, plugs, and switches throughout multiple rooms. This project had a reported cost of $56,300 and was properly permitted and completed in accordance with building codes.

Prior to the 2016 renovations, the building experienced some structural maintenance issues, notably in 2015 when wood rot problems were addressed, particularly focusing on the rear two-story extension stairs, with repairs costing $4,000. Historical records from 1997 show earlier concerns with stair maintenance, with both entrance and front stairs undergoing repairs due to dry rot issues, though one permit from this period expired. The building's electrical infrastructure was modernized in 2004 with an underground service conversion to accommodate two meters with 100-amp service. While there have been several 311 calls regarding the property's surroundings between 2011 and 2019, these primarily concerned exterior issues such as illegal postings, street cleaning matters, and graffiti on public property rather than building-specific problems. All calls were resolved through standard city processes, with the most recent incidents occurring in 2019.

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

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Risk rating

How 1438-1440 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

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
72th percentile

Out of 1493 buildings in this neighborhood, 418 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Building permits, owner's portfolio

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

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 severity forecast
No violation 81.4%
Moderate concern 12.6%
Severe concern 6.0%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

1438-1440 9Th Ave event timeline

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

2025
Building Permit Mar 20
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
$18,000 · Complete

See all 1 events

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

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Every record we have

Full data for 1438-1440 9Th Ave apartments

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

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