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40-42 Tioga Ave

Visitacion Valley, SF 94134 6192017 2 units · 2 fl · 1906

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 Visitacion Valley — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Visitacion Valley average of 1.4.

Rent & eviction protection

Is 40-42 Tioga 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
RH1
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 1906
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 built1906
Total area2,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6192017
Ownership

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

Mailing address
Po Box 320694 San Francisco CA 94132
Last sale
July 08, 1992

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.

42 Tioga Ave, San Francisco, CA 94134
40 Tioga Ave, San Francisco, CA 94134
Augrented Insights
Initial analysis

The two-unit residential building at 40-42 Tioga Avenue in Visitacion Valley, owned by Eric Hom and Irene Wong, has a documented history of both maintenance and significant repair issues. Most recently, in August 2024, a substantial reroofing project was completed at a cost of $15,000 using synthetic underlayment and shingles. The building has undergone several window replacement projects, including installations in 2014 and 2018 that focused on energy efficiency improvements with proper U-factors, though they have now been superceded by the recent 2024 window replacement permit that indicates compliance with current building standards.

The property experienced notable maintenance challenges in 2013, including serious water damage and mold issues that affected both units, with complaints filed about ceiling holes, wall damage, and the use of unlicensed repair personnel, all of which required official citations and permits for remediation. Earlier records from the late 1990s show various safety concerns, including electrical wiring issues and problems with a rotting deck, though these were resolved at the time. More recently, there have been repeated sewage backup issues from the side sewer vent, with incidents reported in October and November 2024. The building's maintenance history shows regular attention to structural and safety issues, with repairs for termite damage in 2002 and building code violations addressed promptly when cited. While many past violations and repair issues have been resolved through proper channels, the recent sewer backup problems suggest ongoing infrastructure challenges.

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

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Risk rating

How 40-42 Tioga 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
57thpercentile

Out of 214 buildings in this neighborhood, 92 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
84%
No DBI
violation
16%
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 16%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

40-42 Tioga Ave apartment reviews

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On the map

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8 found
The story over time

40-42 Tioga Ave event timeline

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

2024
Building Permit Aug 13
Reroofing reroof high pitched roof by using synthetic underlayment and shingles
$15,000 · Complete
Planning RecordAug 13
Re-roof in-kind.

See all 2 events

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

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Every record we have

Full data for 40-42 Tioga Ave apartments

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

Side by side

How 40-42 Tioga Ave compares to the neighborhood

This building against comparable properties in Visitacion Valley. Toggle filters to narrow the peer group.

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