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522-524 5Th Ave

Inner Richmond, SF 94118 1547044 4 units · 2 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 Inner Richmond
Above average
avg 0.9
4
FewerMore

This building has 4 novs (7y), above the Inner Richmond average of 0.9.

Rent & eviction protection

Is 522-524 5Th Ave 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
4 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
Units4
Floors2
Year built1909
Total area3,061 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1547044
Ownership

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

Owner name
Woo Family Revocable Trust
Mailing address
Kenneth C Woo & Maryann S W 1240 Marlborough Rd Hillsborough CA 94010
Last sale
102704

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.

522 05th Ave, San Francisco, CA 94118
524 05th Ave, San Francisco, CA 94118
Augrented Insights
Initial analysis

The two-story, four-unit multi-family residential building at 522-524 5th Avenue in the Inner Richmond, owned by the Woo Family Revocable Trust, has a significant history of maintenance and safety compliance issues since its construction in 1909. The most recent major work was completed in 2024 with a sewer line repair and house trap replacement. Previous electrical upgrades in 2009 included the addition of a house meter for common area lighting, and a reroofing project was completed in 1989. The building underwent several routine safety inspections between 1999 and 2016, revealing multiple fire safety concerns. These included violations related to wood stairs, carbon monoxide alarms, fire extinguishers, combustible storage, fire proofing materials, and smoke enclosure door closures, though all were abated by March 2016.

The property's more recent history shows continued maintenance attention, including street space permits in 2012 and prompt response to various building system needs. The building has experienced some environmental issues, with a complaint about mold in 2010 that was resolved in 2012. Recent maintenance activity has been minimal, and the property has generated regular parking enforcement calls between 2018 and 2025, primarily for driveway blocking and sidewalk parking violations. Street cleaning issues have been reported as recently as 2024, though these appear to be external to the building itself. The building's overall permit and violation history suggests a pattern of addressing safety and maintenance concerns promptly when they arise, though with periodic fire safety violations occurring primarily during the 2005-2016 period.

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

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Risk rating

How 522-524 5Th Ave'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
39th percentile

Out of 1723 buildings in this neighborhood, 1051 are predicted to be safer.

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

Estimated permit spend (past 7 years)

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

Building age

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

12-Month severity forecast
No violation 74.1%
Moderate concern 16.1%
Severe concern 9.8%
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

522-524 5Th Ave event timeline

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

2024
Plumbing Permit Jun 24
Work category: 1p; sewer line repair and house trap replacement.
Complete

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Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 522-524 5Th Ave 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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