Free SF apartment background check

946-950 Oak St

Hayes Valley, SF 94117 0825007 3 units · 3 fl · 1900

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 946-950 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 1900
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
Floors3
Year built1900
Total area6,375 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0825007
Ownership

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

Owner name
Hardeman Lon S
Mailing address
371 Spinnaker St Foster City CA 94404
Last sale
090916

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.

948 Oak St, San Francisco, CA 94117
950 Oak St, San Francisco, CA 94117
946 Oak St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The three-unit residential building at 946-950 Oak Street in Hayes Valley, owned by Lon S Hardeman, is a three-story flats and duplex structure built in 1900. The property has undergone several significant improvements over recent years, with the most recent being a $15,000 replacement of wood stairs and rear staircase in August 2023, and the installation of a new 40-gallon water heater in December 2023. A substantial renovation to the top floor was completed in 2022, costing $67,500, which included a kitchen and bathroom remodel with new tile, plumbing, and electrical fixtures. The building has a documented history of addressing safety requirements, including the installation of a fire sprinkler system in the basement parking garage in 2003, though it received multiple violations in 2010 related to fire safety and building code compliance, all of which were abated by March 2010.

The property has undergone regular routine safety inspections, with records from 1999, 2007, 2010, and most recently in 2018. Historical records show multiple renovation efforts in the early 2000s, including kitchen remodels and garage modifications. While there have been two documented sewage backup incidents in 2013, both were successfully resolved. The building's maintenance history demonstrates ongoing upkeep and modernization efforts, with particular attention paid to address both routine maintenance and compliance with safety regulations over the years. Recent permits and completed work suggest continued investment in the building's infrastructure and living spaces, with proper completion of major systems upgrades such as plumbing and electrical work.

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

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Risk rating

How 946-950 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
65th percentile

Out of 1027 buildings in this neighborhood, 359 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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Building age

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

Final warnings, owner's portfolio

Final warnings issued across all buildings this owner is registered on.

12-Month severity forecast
No violation 71.7%
Moderate concern 20.5%
Severe concern 7.8%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

946-950 Oak St event timeline

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

2023
Plumbing Permit Dec 18
Work category: 1p; replace 40 gallon short water heater, like for like in the garage.
Complete
Building PermitAug 17
Replace in kind wood & stair case at rear of house, less than 50%.

See all 5 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 946-950 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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