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1200-1202 Union St

Russian Hill, SF 94109 0096016 2 units · 2 fl · 1907

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 Russian Hill
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 1200-1202 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 1907
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
NC1
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
Units2
Floors2
Year built1907
Total area2,400 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0096016
Ownership

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

Owner name
Hsiao David M
Mailing address
3217 Fernside Blvd Apt B Alameda CA 94501
Last sale
051820

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.

1200 Union St, San Francisco, CA 94109
1202 Union St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The property at 1200-1202 Union Street is a two-story multi-family residential building with retail space, built in 1907 in San Francisco's Russian Hill neighborhood. Owned by David M. Hsiao, the building underwent significant improvements in 2019, including the installation of ADA-compliant features, with a $10,000 project for an accessible restroom, and substantial bathroom additions on the second floor ($33,000). The renovation work also included window replacements, kitchen remodeling, and various infrastructure upgrades such as a new hydronic fan coil unit and main water line upgrades, totaling over $100,000 in improvements. During this extensive renovation period, there was one building complaint filed in May 2020 regarding construction work, though this complaint is currently listed as not active.

The building's maintenance history shows attention to infrastructure, including a sewer line replacement in 2015, window upgrades in 2012, and a complete reroofing in 2007. Recent years have seen multiple 311 calls primarily related to garbage issues and sidewalk conditions, particularly in 2024, with several reports of overflowing city garbage cans and debris on the street, though these are municipal service matters rather than building-specific issues. A minor fire incident involving a smoke detector malfunction was recorded, with no civilian injuries reported. The property has had various street space permits issued over the years, most recently in 2019, and one vacant storefront complaint in 2019.

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

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Risk rating

How 1200-1202 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

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
42th percentile

Out of 1133 buildings in this neighborhood, 657 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

DBI complaint rate, owner's portfolio

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

12-Month severity forecast
No violation 57.0%
Moderate concern 38.8%
Severe concern 4.2%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

1200-1202 Union St event timeline

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

2026
311 Request May 24
Garbage and debris
furniture
311 RequestApr 03
Public works

See all 20 events

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

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Every record we have

Full data for 1200-1202 Union St apartments

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

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