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846-848 33Rd Ave

Outer Richmond, SF 94121 1675015 3 units · 2 fl · 1924

This building has significantly more problems than most nearby buildings. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Outer Richmond
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Outer Richmond average of 0.7.

Rent & eviction protection

Is 846-848 33Rd Ave 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 1924
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH2
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
Floors2
Year built1924
Total area3,800 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1675015
Ownership

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

Owner name
Mafalda Flaviani Living Tr
Mailing address
Flaviani Mafalda,trustee 457 33Rd Ave San Francisco CA 94121
Last sale
000000

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.

846 33rd Ave, San Francisco, CA 94121
848 33rd Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The 846-848 33rd Avenue property in the Outer Richmond district is a two-story, three-unit multi-family residential building constructed in 1924, currently owned by the Mafalda Flaviani Living Trust. The building has undergone several significant improvements over the years, with the most recent major work being the replacement of seven aluminum windows with vinyl windows at the front in 2010, which was completed to address a violation issued that same year. Other notable improvements include a reroofing project in 2006 costing $7,500, and kitchen renovations involving cabinet and sheetrock replacements from 1996.

The building has experienced multiple compliance issues throughout its history, with the most pressing concerns being related to fire safety. In 2002, a violation regarding combustible storage was issued and resolved, while in 2011, deficiencies in fire extinguisher placement and accessibility were identified and subsequently abated. Historical compliance actions date back to 1984, when the building was brought into full compliance with relevant provisions. The property has also experienced administrative issues, such as work being done without proper permits in 2010, though this was later addressed through appropriate channels. Recent external maintenance issues have been minimal, with only two streetlight outages reported in 2012 (both of which were promptly resolved), and a hazardous materials incident involving glass on the street in 2013, which was also addressed promptly.

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

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Risk rating

How 846-848 33Rd Ave'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
19th percentile

Out of 1040 buildings in this neighborhood, 842 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
68%
No DBI
violation
32%
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.

Estimated permit spend (past 7 years)

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

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 51.6%
Moderate concern 26.0%
Severe concern 22.5%
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

846-848 33Rd Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 846-848 33Rd Ave 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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