Free SF apartment background check

1330 Union St

Russian Hill, SF 94109 0525009 23 units · 3 fl · 1908

This building has far more open problems than almost any other in the neighborhood. Renters here report frequent, slow-to-fix problems. Get repair promises in writing and check the unit before signing.

NOVs (7y) vs. neighborhood
Compared to a typical building in Russian Hill
Above average
avg 1.9
9
FewerMore

This building has 9 novs (7y), above the Russian Hill average of 1.9.

Rent & eviction protection

Is 1330 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 1908
2 or more units
23 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
Units23
Floors3
Year built1908
Total area14,067 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0525009
Ownership

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

Owner name
Sf Multifamily Ill Property
Mailing address
Ballast Investments 49 Powell St Fl 4 San Francisco CA 94102
Last sale
051619

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The 23-unit, three-story multi-family residential building at 1330 Union Street in Russian Hill, constructed in 1908, is currently facing several significant issues that impact resident safety and comfort. Most notably, there is an active complaint from July 2024 regarding extensive visible mold inside a ground floor unit (Apartment 1) due to rainwater intrusion, with reports indicating lack of timely landlord response to remediation requests. The building has multiple current fire safety concerns, including open violations from 2024 regarding the sprinkler system and roof collection/drainage system, as well as fire alarm system issues dating back to 2023. Recent inspections have documented problems with water damage, damaged ceilings and walls, and lead-based paint concerns that require attention. The property has undergone substantial unit renovations between 2016 and 2018, including comprehensive updates to Units 6, 20, and 22 featuring kitchen and bathroom remodeling, electrical upgrades, and the installation of modern appliances, though these improvements appear to have been completed without proper permitting for some work.

The building has a history of fire safety violations, with multiple citation patterns observed between 2017 and 2024 involving alarm systems, sprinkler/standpipe systems, and sleeping area requirements. While some previous violations (such as those from 2023 and 2024) have been abated, there remain open issues requiring resolution. The property has also experienced periodic maintenance challenges, as evidenced by boiler permit renewal issues in 2016 and 2020, and various 311 calls in 2023-2024 regarding sidewalk defects, garbage and debris, and tree maintenance. Recent fire system upgrades are underway, with an approved permit from February 2024 for upgrading the fire alarm system to current codes, though this work appears to address only part of the building's fire safety deficiencies.

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

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Risk rating

How 1330 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
6th percentile

Out of 1133 buildings in this neighborhood, 1065 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
20%
No DBI
violation
80%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 13.2%
Moderate concern 54.0%
Severe concern 32.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1330 Union St apartment reviews

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The story over time

1330 Union St event timeline

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

2026
Electrical Permit May 05
Witness test permit ref. e202605050750
Complete
Electrical PermitMay 05
Online electrical permit: 1 of buildings with more than 12 dwelling units and non-residential occupany - building up to 3 floors. upgrade existing fire alarm system to comply with 1103.7.6.1.

See all 29 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1330 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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