Free SF apartment background check

471-473 Frederick St

Cole Valley/Parnassus Heights, SF 94117 1267044 3 units · 3 fl · 1908

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 471-473 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 1908
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 built1908
Total area4,800 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1267044
Ownership

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

Owner name
Alba Jonathan L
Mailing address
912 Cole St #170 San Francisco CA 94117
Last sale
101100

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.

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

The three-unit residential building at 471-473 Frederick Street, owned by Jonathan L. Alba, is a three-story flats and duplex structure built in 1908 in the Parnassus/Ashbury Heights neighborhood. The property has undergone several significant renovations and improvements over the years, with the most recent major work being a furnace replacement in 2018 and bathroom renovations in Unit #473 completed in 2014. Earlier improvements include window replacements in 2013 (61 windows), kitchen and bathroom remodels in 2014, and electrical system upgrades including a 60-amp subpanel installation. The building has experienced some maintenance challenges, particularly documented in a 2011 routine inspection that resulted in multiple active violations, including issues with guardrails, garbage receptacle placement, and various repair requirements. While many of these violations were previously addressed between 2003-2004, the 2011 inspection noted similar concerns regarding stairs, storage, and necessary permits. The property has a history of 311 calls in 2024 primarily related to street cleaning and parking issues near the property, suggesting ongoing management of public space maintenance requirements. The building's permit history shows regular maintenance and improvements, though some plumbing and electrical permits from 2014-2016 expired, requiring renewals or amendments to complete the work. In 2020, there was an issued permit for street space usage, and the property has undergone various routine inspections by Housing Inspection Services over the years.

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

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Risk rating

How 471-473 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
57th percentile

Out of 526 buildings in this neighborhood, 226 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
80%
No DBI
violation
20%
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.

Estimated permit spend (past 7 years)

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

Building age

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

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

12-Month severity forecast
No violation 80.4%
Moderate concern 15.1%
Severe concern 4.5%
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

471-473 Frederick St event timeline

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

2019
Building Permit Nov 26
Street space
Issued

See all 1 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 471-473 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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