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417 Frederick St

Cole Valley/Parnassus Heights, SF 94117 1267060 2 units · 2 fl · 1900

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Cole Valley/Parnassus Heights — not a forecast
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1900
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

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
Mailing address
417 Frederick St San Francisco CA 94117
Last sale

Landlord portfolio

Other SF properties this owner holds, with a risk rating 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
67thpercentile

Out of 526 buildings in this neighborhood, 174 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

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 risk forecast
Low failure risk 17%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

417 Frederick St apartment reviews

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On the map

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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.

Side by side

How 417 Frederick St compares to the neighborhood

This building against comparable properties in Cole Valley/Parnassus Heights. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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