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544-548 Union St

Telegraph Hill, SF 94133 0103011 3 units · 3 fl · 1909

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 Telegraph Hill
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Telegraph Hill average of 1.2.

Rent & eviction protection

Is 544-548 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
3 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.

Building characteristics
Units3
Floors3
Year built1909
Total area3,204 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0103011
Ownership

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

Owner name
Fmly Tr-Elizabeth W Hirsch/
Mailing address
Trogu Giuseppe M & Hirsch E 544 Union St San Francisco CA 94133
Last sale
051500

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.

548 Union St, San Francisco, CA 94133
544 Union St, San Francisco, CA 94133
546 Union St, San Francisco, CA 94133
Augrented Insights
AI summary

The three-unit, three-story multi-family residential building at 544-548 Union Street in Telegraph Hill, owned by the Family Trust of Elizabeth W Hirsch, has a history dating back to 1909. The mixed-use property, which includes retail space, underwent a reroofing project in 2002 at a cost of $8,070, though records show this permit has since expired. Several street space permits were issued in the 2000s and most recently in 2019, indicating some temporary use of public space adjacent to the property.

The building faced a vacant commercial storefront issue in 2018, according to a complaint filed with the Code Enforcement Section, though this case is now marked as not active. More recently, between August and December 2024, there has been a notable increase in environmental challenges in the immediate vicinity, with multiple 311 complaints regarding garbage and debris, including several reports of human waste or urine on the street, and cases of abandoned furniture and other debris. The area has also experienced recurring issues with encampments, as evidenced by multiple reports to the Healthy Streets Operation Center, with individuals declining services when approached by outreach teams. While these external issues do not directly indicate problems with the residential units themselves, they do suggest the building is situated in an area experiencing significant urban challenges in recent months.

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Risk rating

How 544-548 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
31th percentile

Out of 684 buildings in this neighborhood, 472 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 59.0%
Moderate concern 28.0%
Severe concern 13.0%
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

544-548 Union St event timeline

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

2026
311 Request Apr 16
Public works
bsm complaint
311 RequestFeb 10
Public works

See all 5 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 544-548 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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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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