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471-475 Union St

Telegraph Hill, SF 94133 0115022 5 units · 3 fl · 1913

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 471-475 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 1913
2 or more units
5 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.

Building characteristics
Units5
Floors3
Year built1913
Total area3,600 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0115022
Ownership

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

Owner name
471-475 Union St Llc
Mailing address
4225 Solano Ave #602 Napa CA 94558
Last sale
051617

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.

475 Union St, San Francisco, CA 94133
473 Union St, San Francisco, CA 94133
471 Union St, San Francisco, CA 94133
Augrented Insights
AI summary

The 471-475 Union Street building is a three-story, five-unit multi-family residential structure located in Telegraph Hill and constructed in 1913, currently owned by 471-475 Union St LLC. The building has undergone several significant improvements over the past decade, with recent work including a completed re-roofing project in September 2024 costing $12,000, and a fire alarm upgrade initiated in July 2023. Major renovations in 2015-2016 focused on legalizing a sixth unit on the ground floor, which included kitchen and bathroom remodeling, installation of a new fire sprinkler system, and electrical upgrades. Historical issues included lead paint violations in 2015-2016, which were resolved by August 2018, and various maintenance concerns from 1999-2000 regarding lighting, water leaks, and garbage area conditions.

The building has a Tier 3 Soft Story designation with work completed and the Certificate of Final Completion issued, demonstrating compliance with seismic safety requirements. Recent maintenance and inspection records indicate ongoing attention to building systems, with electrical work including new electrical service installations, and multiple plumbing upgrades completed in 2015-2016. The property has experienced periodic issues with exterior maintenance as evidenced by multiple 311 calls for sidewalk cleaning and loose garbage between 2015-2019, and one instance of graffiti in 2016, all of which were resolved. Regular street space permits were issued in 2017, suggesting ongoing engagement with city infrastructure requirements. Notably, there has been only one recorded fire incident related to a malfunctioning smoke detector, with no civilian injuries reported.

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Risk rating

How 471-475 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
38th percentile

Out of 684 buildings in this neighborhood, 424 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Property class: multi-family flat

2–4 unit flats (class F) are a common SF building type with their own maintenance and complaint patterns.

12-Month severity forecast
No violation 49.0%
Moderate concern 21.6%
Severe concern 29.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

471-475 Union St event timeline

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

2026
311 Request Feb 21
Garbage and debris
christmas tree
311 RequestFeb 18
Garbage and debris

See all 9 events

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

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Every record we have

Full data for 471-475 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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