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645 Bush St

Union Square, SF 94108 0285014 52 units · 5 fl · 1911

This building has a higher-than-average number of open problems nearby. 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 Union Square
At or below average
avg 6.9
1
FewerMore

This building has 1 novs (7y), at or below the Union Square average of 6.9.

Rent & eviction protection

Is 645 Bush 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
52 units
Property type
Multi-Family Residential
Zoning
RC4
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
Units52
Floors5
Year built1911
Total area30,900 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0285014
Ownership

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

Owner name
Angelus Apartments Lp
Mailing address
A Nocon Po Box 64314 Sunnyvale CA 94088
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The Angelus Apartments, a 52-unit multi-family residential building located at 645 Bush Street in the Union Square neighborhood, is a 5-story structure built in 1911 currently owned by Angelus Apartments LP. The building has undergone several significant safety upgrades in recent years, with the most recent major works including a fire alarm system upgrade in 2024 costing over $105,000 to comply with fire code requirements, and the installation of low-frequency sounders in sleeping areas to meet current safety standards. The property has a history of addressing fundamental safety concerns, including seismic upgrading in 1993 and the installation of fire sprinklers in 2007.

Recent inspections and fire complaints have revealed ongoing safety and maintenance issues, particularly concerning fire safety systems. Multiple fire code violations were noted in 2024, including blocked exits and sprinkler system problems, though some violations were promptly corrected. The building experienced significant maintenance challenges in 2007, including plumbing issues, interior damage, and ventilation problems. Historical building violations from 2000 included various safety concerns such as egress obstruction and fire extinguisher accessibility, all of which were subsequently abated. The property has also undergone several infrastructure improvements over the years, including electrical upgrades, plumbing improvements, and the replacement of circuit breaker load centers in 2012. While the building's management has generally addressed violations and performed necessary maintenance, the frequency of recent fire-related violations and complaints suggests ongoing challenges with maintaining current safety standards and systems.

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

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Risk rating

How 645 Bush 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
34th percentile

Out of 38 buildings in this neighborhood, 25 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
9%
No DBI
violation
91%
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.

Construction type (C)

The building's construction type on file, which affects its maintenance risk profile.

12-Month severity forecast
No violation 7.0%
Moderate concern 82.3%
Severe concern 10.6%
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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645 Bush St apartment reviews

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The story over time

645 Bush St event timeline

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

2025
Building Violation (NOV) Nov 10 Serious
The building façade inspection program established by ordinance 67-16 and codified as san francisco existing building code chapter 5f requires certain building facades be regularly inspected by a california licensed architect or engineer. a written report of the inspection findings shall be submitted to the department for review. this building is in violation of the mandatory building façade inspection program tier 2 comprehensive inspection report submittal deadline of 12/31/2023. see san francisco existing building code chapter 5f and sections 501f, 503f, 505f, and 507f for applicable codes this program. monthly monitoring fee section 110a table 1a-k
DBI ComplaintNov 10
Customer is not in compliance with sf existing building code chapter 5f

See all 8 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 645 Bush 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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