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438-440 10Th Ave

Inner Richmond, SF 94118 1535035 3 units · 2 fl · 1916

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 Richmond
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Inner Richmond average of 0.9.

Rent & eviction protection

Is 438-440 10Th 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 1916
2 or more units
3 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
Units3
Floors2
Year built1916
Total area3,918 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1535035
Ownership

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

Owner name
Ko Fmly Trust Udt 10/19/17
Mailing address
Bruce Ko & Sheila Ko Truste 816 48Th Ave San Francisco CA 94121
Last sale
000000

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.

440 10th Ave, San Francisco, CA 94118
438 10th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The property at 438-440 10th Avenue in the Inner Richmond is a two-story multi-family residential building constructed in 1916, currently owned by the Ko Family Trust since October 2017. The building consists of three units and has undergone several significant renovations and faced numerous compliance issues over the years. Most recently, in October 2023, there were permitted kitchen remodeling works ($25,000) and associated plumbing and electrical work, though there were also complaints about unauthorized work. This follows a history of concerning maintenance issues in the early 2000s, including multiple housing code violations filed in 2004-2005 related to water damage, mold/mildew, interior surface repairs, and fire safety concerns, all of which were officially abated by January 2005.

The building underwent an important transition in 2004 when work was completed to revert the first and second floors from multiple units back to their original configuration. Earlier complaints from 2001 had reported illegal apartment conversions, and in 2003 there were concerns about an unauthorized deck construction. More recent tenant complaints from September 2023 have surfaced regarding potential unpermitted work, particularly focusing on kitchen and bathroom renovations, with past patterns suggesting this may not be an isolated issue. The property has experienced various maintenance challenges over the years, including heating issues, water leaks, and fire safety concerns, though many of these historical violations have been resolved. Infrastructure-related 311 calls suggest some recurring issues with sewer systems, with reports in 2009 and 2010. The building underwent a bathroom remodel in 2005, and more recently (2023) there has been verified electrical and plumbing work related to kitchen improvements.

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

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Risk rating

How 438-440 10Th 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
38th percentile

Out of 1723 buildings in this neighborhood, 1068 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
79%
No DBI
violation
21%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

Building age

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

12-Month severity forecast
No violation 58.0%
Moderate concern 30.0%
Severe concern 12.1%
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

438-440 10Th Ave event timeline

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

2023
Building Permit Oct 20
Kitchen remodeling
$8,000 · Issued
Plumbing PermitOct 20
Install broken faucet sink

See all 6 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 438-440 10Th Ave apartments

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

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

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