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939 Oak St

Hayes Valley, SF 94117 0845032 3 units · 2 fl · 1890

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
At or below average
avg 2.3
0
FewerMore

This building has 0 novs (7y), at or below the Hayes Valley average of 2.3.

Rent & eviction protection

Is 939 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 1890
2 or more units
3 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
Units3
Floors2
Year built1890
Total area2,512 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0845032
Ownership

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

Owner name
Arthur C & Linda S Stone Lv
Mailing address
Stone Arthur Curtiss & Lind 2146 Sutter St San Francisco CA 94115
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 two-story multi-family residential building at 939 Oak Street in Hayes Valley, constructed in 1890, contains three units and is currently owned by Arthur C & Linda S Stone Lv. The building's maintenance history includes a reroofing project in 2002 costing $5,500 and repairs to rotting stairs in 2003 valued at $4,000; however, these permits are now expired. The most significant recent development involves a complaint filed in November 2024 regarding unauthorized construction at the rear of the property, including concrete work and wall construction, though this complaint's current status is listed as "Not Active" as of December 2024.

The property has experienced numerous parking-related issues in recent years, with multiple complaints about vehicles blocking driveways and parking on sidewalks between 2018 and 2024. Of particular note are two driveway blocking incidents in 2024 (May and March), though in both cases, officers were unable to validate the reported violations. Other notable incidents include a missing side sewer vent cover reported in February 2023, and graffiti on a pole in February 2019, both of which were resolved. The building's documented history shows regular interaction with city services, primarily concerning parking enforcement issues, which have been consistently addressed by responding officers.

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

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Risk rating

How 939 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
66th percentile

Out of 1027 buildings in this neighborhood, 349 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
76%
No DBI
violation
24%
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.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Estimated permit spend (past 7 years)

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

Neighborhood location

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

12-Month severity forecast
No violation 60.1%
Moderate concern 28.7%
Severe concern 11.2%
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

939 Oak St event timeline

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

2024
DBI Complaint Nov 15
Please inspect construction on rear of property without permit. they have since poured concrete and walls are up. (311 sr 101001027507)
Building Inspection Division

See all 1 events

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

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Every record we have

Full data for 939 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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