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829-833 Union St

Russian Hill, SF 94133 0119002 4 units · 2 fl · 1909

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems 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 Russian Hill — not a forecast
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 829-833 Union St 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 1909
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM2
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 1909
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
Units4
Floors2
Year built1909
Total area2,924 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0119002
Ownership

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

Mailing address
Gail B Hall, Trustee 738 34Th Ave San Francisco CA 94121
Last sale
—

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.

831 Union St, San Francisco, CA 94133
833 Union St, San Francisco, CA 94133
829 Union St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The property at 829-833 Union St is a 2-story, 4-unit multi-family residential building constructed in 1909 and currently owned by the Hall Family Trust - Bypass. The building has undergone several significant maintenance and improvement projects over the years, including a $9,000 renovation in 2013 at unit 833 that involved replacing drywall, fixtures, and performing bathroom and kitchen updates, as well as a complete reroofing in 2004 that cost $10,820. A notable cluster of building violations occurred in May 2005, primarily related to fire safety concerns, including issues with fire extinguishers, emergency exits, smoke detectors, and gas meter instructions, though all these violations were successfully abated by July 1, 2005.

The building has experienced some maintenance issues over its history, including a complaint in July 2017 regarding abandoned construction equipment blocking the sidewalk, though this was marked as "Not Active." The property has also been the subject of various municipal service requests in the surrounding area, particularly in recent years, with multiple reports in 2021 and 2024 relating to sidewalk cleanliness and waste management. Recent 311 calls have primarily concerned street cleaning and waste management issues outside the building, rather than internal building conditions. While the building's documented history shows it has addressed major building code violations when cited, there have been recurring neighborhood maintenance issues related to waste management, as evidenced by multiple 311 calls regarding garbage receptacle placement and sidewalk cleanliness.

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

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Risk rating

How 829-833 Union St'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
74thpercentile

Out of 1133 buildings in this neighborhood, 295 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.

Number of units

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

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

829-833 Union St apartment reviews

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On the map

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8 found
The story over time

829-833 Union St event timeline

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

2026
311 Request May 03
Other illegal parking
Parking Enforcement

See all 3 events

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

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Every record we have

Full data for 829-833 Union St apartments

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

Side by side

How 829-833 Union St compares to the neighborhood

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