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517-519 Fell St

Hayes Valley, SF 94102 0830028 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 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 517-519 Fell 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 area1,934 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0830028
Ownership

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

Owner name
Patterson Daniel & Mary
Mailing address
4330 Bodega Ave Petaluma CA 94952
Last sale
022118

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.

517 Fell St, San Francisco, CA 94102
519 Fell St, San Francisco, CA 94102
Augrented Insights
Initial analysis

The property at 517-519 Fell Street is a two-unit, two-story multi-family residential building located in Hayes Valley, owned by Daniel and Mary Patterson and constructed in 1900. The building's maintenance history reveals several significant plumbing issues, with the most recent sewer line replacement completed in July 2023. The property has experienced recurring plumbing problems, documented through three complaints in December 2002 and April 2003, including leaky pipes and issues with running water, which affected walls and floors. A concerning building complaint from December 2024 reported multiple problems, including lack of proper heat, pest issues, and work being performed without permits, though this case is currently listed as not active. Previous renovations include kitchen and bathroom remodels in 1998 and an electrical service upgrade in 2004, though both permits are now expired.

The building has been the subject of various infrastructure challenges over the years, with multiple 311 calls related to street cleaning around the property between 2015 and 2023, including reports of loose garbage and waste. These external incidents, while not directly related to the building's condition, indicate ongoing neighborhood maintenance challenges. Notably, the electrical system received attention in 2004 with a service upgrade, though there have been no recorded electrical complaints since then. The property's recent plumbing work in 2023 suggests some level of ongoing maintenance, though the pattern of past plumbing issues and the recent heating system concerns may indicate ongoing infrastructure challenges within the building.

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

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Risk rating

How 517-519 Fell 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
71th percentile

Out of 1027 buildings in this neighborhood, 298 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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building age

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

Estimated permit spend (past 7 years)

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

12-Month severity forecast
No violation 83.5%
Moderate concern 10.0%
Severe concern 6.5%
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

517-519 Fell St event timeline

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

2026
311 Request May 02
Garbage and debris
glass
311 RequestJan 08
Other illegal parking

See all 5 events

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

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Every record we have

Full data for 517-519 Fell 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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