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840-842 Filbert St

Russian Hill, SF 94133 0091013 2 units · 2 fl · 1910

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 Russian Hill
At or below average
avg 1.9
0
FewerMore

This building has 0 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 840-842 Filbert 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 1910
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
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 built1910
Total area2,112 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0091013
Ownership

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

Owner name
Wong Family Living Trust
Mailing address
Walton E & Sandra T Wong Tr 840 Filbert St San Francisco CA 94133
Last sale
120794

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.

840 Filbert St, San Francisco, CA 94133
840 A Filbert St, San Francisco, CA 94133
842 Filbert St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The Wong Family Living Trust owns this century-old multi-family residential building, located at 840-842 Filbert Street in Russian Hill. The 2-unit, 2-story structure was constructed in 1910 and has undergone several significant maintenance and improvement projects over its lifetime, with the most recent major work being a $14,000 re-roofing project completed in 2017. The building's maintenance history shows regular upkeep, including multiple re-roofing efforts in 1990, interior remodeling of kitchen and bath facilities in 1987, window improvements in 1986, and a basement alteration for a wood frame deck installation in 1985. More recently, the plumbing system received attention in 2015 with the replacement of the house trap and sewer line.

The property has experienced recurring issues with illegal parking, particularly in 2021 and 2022, though these incidents have been promptly addressed through parking enforcement actions. There was a documented street space permit issued in 2011, and while various maintenance and improvement works suggest regular upkeep, there are no recorded violations or safety concerns in the available data. The building's permit history indicates a pattern of proactive maintenance, with significant improvements spaced approximately every decade, suggesting appropriate attention to building preservation and modernization requirements.

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

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Risk rating

How 840-842 Filbert 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
94th percentile

Out of 1133 buildings in this neighborhood, 68 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
93%
No DBI
violation
7%
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 location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

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.

12-Month severity forecast
No violation 87.0%
Moderate concern 9.8%
Severe concern 3.3%
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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The story over time

840-842 Filbert St event timeline

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

2025
311 Request Dec 18
Blocking driveway cite tow
Parking Enforcement
311 RequestFeb 06
Flooding

See all 2 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 840-842 Filbert 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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