Free SF apartment background check

417 Frederick St

Cole Valley/Parnassus Heights, SF 94117 1267060 2 units · 2 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 Cole Valley/Parnassus Heights
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Cole Valley/Parnassus Heights average of 0.9.

Rent & eviction protection

Is 417 Frederick 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
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
Floors2
Year built1900
Total area3,150 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1267060
Ownership

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

Owner name
Mitchell Donald S
Mailing address
417 Frederick St San Francisco CA 94117
Last sale
051419

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.

417 A Frederick St, San Francisco, CA 94117
417 Frederick St, San Francisco, CA 94117
Augrented Insights
Initial analysis

The 417 Frederick Street property is a two-unit multi-family residential building located in the Parnassus/Ashbury Heights neighborhood. Built in 1900, this two-story flats and duplex structure, currently owned by Donald S. Mitchell, underwent significant renovations between 2017-2018 including comprehensive updates to both units' kitchens and bathrooms, major plumbing system upgrades (covering two kitchens, four bathrooms, two laundry rooms, and gas lines), installation of two new gas furnaces, and complete electrical system modernization with 200-amp service and updated wiring. The renovation project, valued at $60,000, was carefully documented through multiple permits, including E201704214494 and E201704214495 for electrical work, and plumbing permits PP20170606966 and PM20170606967, all of which have been completed.

The building's maintenance history shows attention to both interior and exterior upkeep, with earlier permits from 1990 addressing interior plaster and exterior stucco repairs, and terrazzo steps repair. More recent building concerns have primarily involved external matters, with several 311 calls between 2020-2024 relating to street cleaning issues, including hazardous materials and waste removal. The most recent documented incident was a glass hazard reported in December 2023, which remains open. The property has experienced minimal safety concerns, with only one documented water or steam leak incident reported to the fire department, with no civilian injuries recorded.

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

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Risk rating

How 417 Frederick 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
67th percentile

Out of 526 buildings in this neighborhood, 174 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
83%
No DBI
violation
17%
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.

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 59.4%
Moderate concern 13.2%
Severe concern 27.4%
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

417 Frederick St event timeline

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

2023
311 Request Dec 24
Hazardous materials
Glass

See all 1 events

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

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Every record we have

Full data for 417 Frederick 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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