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522 Oak St

Hayes Valley, SF 94102 0829015 2 units · 3 fl · 1885

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 Hayes Valley
Above average
avg 2.3
12
FewerMore

This building has 12 novs (7y), above the Hayes Valley average of 2.3.

Rent & eviction protection

Is 522 Oak 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 1885
2 or more units
2 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
Units2
Floors3
Year built1885
Total area2,769 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0829015
Ownership

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

Owner name
Allen Ashley P & Bender Jos
Mailing address
522 Oak St Unit 1-2 San Francisco CA 94102
Last sale
081321

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 A Oak St, San Francisco, CA 94102
522 Oak St, San Francisco, CA 94102
Augrented Insights
Initial analysis

This three-story multi-family residence, located at 522 Oak St in Hayes Valley, was built in 1885 and contains two units. The property has undergone several significant changes and faced various regulatory challenges over the past several years. Most notably, between 2017 and 2021, there were violations regarding unpermitted construction work related to a basement dwelling unit conversion, which included unauthorized electrical and plumbing modifications. These issues were ultimately resolved through proper legalization in 2018-2021, including a $114,431 permit for legalization works and associated plumbing and electrical updates in 2018-2019.

The building experienced multiple infrastructure improvements in recent years, including plumbing work in 2020 involving relocation of a hose bibb and kitchen modifications, as well as a completed wall furnace replacement in late 2018. Historical records show earlier concerns from 2014-2015 regarding blocked exits and hazardous materials storage, which were addressed through violation corrections. The property has also faced some neighborhood maintenance challenges, as evidenced by multiple 311 calls in 2024 regarding garbage, debris, and sidewalk cleaning issues, though these are typical urban maintenance matters rather than building-specific problems. The building's owners have had to address several regulatory matters, including a resolved short-term rental violation in 2018, and recent plumbing modifications appear to be primarily focused on maintaining and updating existing systems rather than creating new unauthorized spaces.

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

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Risk rating

How 522 Oak 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
96th percentile

Out of 1027 buildings in this neighborhood, 41 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
92%
No DBI
violation
8%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Estimated permit spend (past 7 years)

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

Building permits (past 7 years)

Number of permits pulled at this address — construction or renovation activity over 7 years.

12-Month severity forecast
No violation 87.7%
Moderate concern 7.5%
Severe concern 4.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

522 Oak St apartment reviews

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The story over time

522 Oak St event timeline

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

2024
311 Request Mar 14
General cleaning
Other Loose Garbage

See all 3 events

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

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Every record we have

Full data for 522 Oak 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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