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324-328 Union St

Telegraph Hill, SF 94133 0105017 3 units · 3 fl · 1911

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 Telegraph Hill — not a forecast
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.

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 324-328 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 1911
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 1911
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 built1911
Total area2,100 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0105017
Ownership

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

Owner name
Mailing address
326 Union St San Francisco CA 94133
Last sale
August 13, 2002

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.

326 Union St, San Francisco, CA 94133
328 Union St, San Francisco, CA 94133
324 Union St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The three-unit, three-story multi-family residential building at 324-328 Union Street in Telegraph Hill, owned by Matija Mosunic, has a construction date of 1911 and has undergone several significant maintenance events over the years. A notable series of violations and repairs occurred in April-May 2005, when the building faced multiple fire safety and structural issues, including problems with fire proofing, wood stairs, and fire extinguisher maintenance, as well as the need for a gas utility shutoff tool and smoke detector battery replacements. All these violations were addressed and abated by May 20, 2005. Subsequent important maintenance work included a reroofing project completed in 2002 ($6,560), installation of a new gas wall heater in 2019 (though this permit expired), and a water heater replacement in 2008.

In the past few years, there have been several 311 calls regarding the property, mostly relating to public works and general maintenance issues, including requests for service in 2022-2024. Two sidewalk obstruction complaints were recorded in August 2021 concerning construction materials blocking the sidewalk, though these conditions were resolved. A water-related incident was recorded as a fire incident, but no civilian injuries were reported. The building has undergone routine inspections, with the most recent plumbing issue reported in October 2019 regarding a gas wall furnace installation that required inspection due to internal concerns. The property's maintenance record shows regular attention to both building systems and safety requirements, with all noted violations being promptly addressed.

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

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Risk rating

How 324-328 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
25thpercentile

Out of 684 buildings in this neighborhood, 513 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
69%
No DBI
violation
31%
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.

Permit rate, owner's portfolio

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

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month risk forecast
Moderate failure risk 31%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

324-328 Union St apartment reviews

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On the map

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This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

The story over time

324-328 Union St event timeline

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

2026
311 Request May 30
Blocked sidewalk
lime standing scooter
311 RequestMay 30
Blocked sidewalk

See all 6 events

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

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Every record we have

Full data for 324-328 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 324-328 Union St compares to the neighborhood

This building against comparable properties in Telegraph Hill. 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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