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634-636 South Van Ness Ave

Inner Mission, SF 94110 3575007 3 units · 3 fl · 1908

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 Mission — not a forecast
At or below average
avg 2.7
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.7.

Rent & eviction protection

Is 634-636 South Van Ness 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
3 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units3
Floors3
Year built1908
Total area3,052 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3575007
Ownership

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

Mailing address
634 S Van Ness Ave San Francisco CA 94110
Last sale
May 08, 2019

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.

636 South Van Ness Ave, San Francisco, CA 94110
634 South Van Ness Ave, San Francisco, CA 94110
634 A South Van Ness Ave, San Francisco, CA 94110
Augrented Insights
Initial analysis

The two-unit residential building at 634-636 South Van Ness Avenue, constructed in 1908, has undergone several significant improvements and modifications over recent years under the ownership of Huie Fritz C & Yan Yi. Most notably, in 2020, the property received comprehensive fire safety upgrades, including the installation of a new fire alarm system (cost: $7,500) and a ground floor fire sprinkler system ($10,000), with associated electrical work and multiple monitoring devices. The building underwent substantial interior renovations in 2019, including the addition of a new kitchen, bedroom, and bathroom on the first floor, as well as similar additions on the third floor, and the enclosure of a lightwell on the second floor (total cost: $195,000). These improvements were accompanied by plumbing and electrical upgrades, including new furnaces, tankless water heaters, and a 200-amp service upgrade with three meters.

The property's history includes some concerning maintenance and safety issues, with multiple 311 calls in recent years (2023-2025) reporting instances of graffiti, waste, and debris on or near the property. Of particular note is an active building complaint from October 2017 regarding an unpermitted structure in the rear yard, which remains unresolved as of the latest data. However, significant recent improvements include a complete replacement of the rear egress stair in 2017 to meet safety requirements, and various bathroom and kitchen remodeling projects in multiple units. The property has also seen attention to infrastructure improvements, including plumbing system upgrades and new electrical systems throughout.

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

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Risk rating

How 634-636 South Van Ness 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
95thpercentile

Out of 2380 buildings in this neighborhood, 119 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
88%
No DBI
violation
12%
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 (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

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.

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

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On the map

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8 found
The story over time

634-636 South Van Ness Ave event timeline

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

2020
Building Permit Oct 28
Install a new manual fire alarm system and sprinkler monitoring system. install new fire alarm control unit, 1 heat detector, 3 pull station, 3 monitor modules, 1 ceiling horn strobe, 8 sounder horn, 1 water proof horn strobe. ref pa # 2019-0829-0168 ref sprinkler # 2020-0405-3565
$7,500 · Complete
Plumbing PermitSep 29
Work category: 4pa; provide new fire sprinkler system for entire ground floor. 14 fire sprinkler heads total

See all 11 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 634-636 South Van Ness Ave apartments

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

Side by side

How 634-636 South Van Ness Ave compares to the neighborhood

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