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520 Bartlett St

Inner Mission, SF 94110 6569019 5 units · 3 fl · 1969

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 Inner Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Inner Mission average of 2.6.

Rent & eviction protection

Is 520 Bartlett 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 1969
2 or more units
5 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
Units5
Floors3
Year built1969
Total area5,643 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6569019
Ownership

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

Owner name
Bonfigli Family Trust 2003
Mailing address
Georgie A Bonfigli Trustee 1254 Frontera Way Millbrae CA 94030
Last sale
102617

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The 5-unit, 3-story apartment building at 520 Bartlett Street in the Inner Mission, owned by the Bonfigli Family Trust 2003, has undergone several significant improvements since its construction in 1969. Most notably, the building completed a mandatory soft-story seismic retrofit in 2017 (Tier 3) at a cost of $60,000, demonstrating compliance with current safety requirements. Recent improvements include the installation of 14 new Fibrex windows in 2019, replacing aluminum frames on the street-facing facade, and a kitchen remodel in Unit 5 in 2015 that included electrical upgrades and new appliances. The building received attention for fire safety issues in December 2003, when multiple violations were documented regarding fire escape ladders, egress obstructions, gas meter instructions, fire proofing materials, and the central alarm system - all of which were resolved by January 2004. A fire alarm system violation occurred in January 2020, which was promptly abated within two days. Historical records show plumbing improvements in 2008 with the installation of two tankless water heaters, and repairs for dry rot at Unit 2 in 2001.

The building has undergone regular routine inspections by Housing Inspection Services in 2003, 2010, and 2014, with all issues being addressed and closed. A tenant buyout occurred at 536 Bartlett Street (note the address difference) in December 2016 for $7,500. Recent exterior maintenance issues, including street cleaning and graffiti removal, have been documented through 311 calls in 2020-2021, though these are not direct reflections on the building's condition. The property has maintained active compliance with building regulations, addressing both seismic requirements and fire safety systems as needed, with no current active violations or open complaints on record.

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

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Risk rating

How 520 Bartlett 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
63th percentile

Out of 2380 buildings in this neighborhood, 881 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
71%
No DBI
violation
29%
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.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

Building size

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

Neighborhood (ZIP code)

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

12-Month severity forecast
No violation 58.3%
Moderate concern 19.4%
Severe concern 22.3%
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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On the map

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The story over time

520 Bartlett St event timeline

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

2025
311 Request Nov 02
Other illegal parking
Parking Enforcement

See all 3 events

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

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Every record we have

Full data for 520 Bartlett 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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