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436-440 South Van Ness Ave

Inner Mission, SF 94103 3553003 6 units · 3 fl · 1910

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 436-440 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 1910
2 or more units
6 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 1910
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
Units6
Floors3
Year built1910
Total area5,970 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3553003
Ownership

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

Owner name
Mailing address
Tang Ping Sum & Wong Kwai L 240 Ortega St San Francisco CA 94122
Last sale
September 29, 1989

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.

440 South Van Ness Ave, San Francisco, CA 94103
438 South Van Ness Ave, San Francisco, CA 94103
436 South Van Ness Ave, San Francisco, CA 94103
Augrented Insights
Initial analysis

The three-story, six-unit apartment building at 436-440 South Van Ness Avenue in the Inner Mission neighborhood, built in 1910 and currently owned by the Tang/Wong Family Trust, has undergone several significant improvements and faced various maintenance challenges over the past decade. The building completed a mandatory soft-story retrofit in 2016 (Tier 4) to enhance seismic safety, and more recent improvements include a comprehensive electrical upgrade in 2013 to 200 amps with seven meters, bathroom remodels (2013, 2019), and water heater strapping (2019). In 2011-2012, the building addressed several structural issues, including foundation work on rear staircases and repairs to bathroom walls following tenant complaints. A significant cluster of violations was documented in July 2019, including inadequate lighting, damaged ceilings, obstructed egress, and various interior maintenance issues, all of which were abated by November 2019.

The property has a history of maintenance challenges, particularly regarding basic systems and interior conditions. Past issues included window problems (2012), heating system deficiencies (2011), and sewage backups (2011), with multiple complaints regarding interior conditions such as holes in walls, window problems, and flooring issues. The building's systems have been progressively improved over time, including space heater replacements (2012), lighting upgrades (2019), and various interior renovations. Recent records (2024) show ongoing environmental maintenance concerns in the vicinity, including abandoned debris and occasional encampment reports, though these are primarily external to the building itself. The most recent internal modifications and repairs suggest that many of the historical maintenance issues have been addressed, but the building continues to require regular maintenance and attention to comply with current housing standards.

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

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Risk rating

How 436-440 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
29thpercentile

Out of 2380 buildings in this neighborhood, 1690 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
52%
No DBI
violation
48%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

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

Neighborhood (ZIP code)

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

12-Month risk forecast
Moderate failure risk 48%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

436-440 South Van Ness Ave apartment reviews

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On the map

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The story over time

436-440 South Van Ness Ave event timeline

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

2026
DBI Complaint Aug 03
Possible illegal unit on basement, window falling apart, peeling paint, possible lead, molds on wall, insufficient heater, water leaking
Housing Inspection Services
311 RequestApr 01
Parking on sidewalk

See all 12 events

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

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Every record we have

Full data for 436-440 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 436-440 South Van Ness Ave compares to the neighborhood

This building against comparable properties in Inner Mission. Toggle filters to narrow the peer group.

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

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