Free SF apartment background check

405 33Rd Ave

Outer Richmond, SF 94121 1465001 18 units · 3 fl · 1926

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

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 405 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 1926
2 or more units
18 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
Units18
Floors3
Year built1926
Total area12,915 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1465001
Ownership

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

Owner name
Wong Edith Y W
Mailing address
595 Ortega St San Francisco CA 94122
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 18-unit, 3-story multi-family residential building at 405 33rd Avenue in San Francisco's Outer Richmond neighborhood, owned by Edith Wong, has undergone several significant renovations since its construction in 1926. Most recently, in 2023-2024, the building has faced fire safety compliance issues, with a "Sleeping Area Requirements" violation issued in December 2023 that remains open, and an "Alarm Systems" complaint in August 2024 that was corrected. The building completed its mandatory soft-story retrofit in 2016, which included the installation of moment frames and shearwalls, demonstrating adherence to seismic safety requirements.

Historical maintenance records show substantial improvements to the building's infrastructure, including the replacement of 32 windows in 2017, repair of water damage to the rear wall in 2017, and reroofing projects completed in 1992, 2000, and 2002. The building has previously experienced various maintenance challenges, including multiple fire safety violations in 2001 and 2006 related to fire escapes, fire extinguishers, and combustible storage, though all were resolved. Early complaints from the late 1990s highlighted issues with water leaks, pest entry points, and garbage disposal. Recent 311 calls from late 2024 primarily relate to street cleaning and garbage issues outside the building, rather than internal building maintenance concerns. The building has experienced three fire-related incidents/alarms since 2023, though none resulted in civilian injuries, with causes including water evacuation, potential accident, and CO detector malfunction.

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

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Risk rating

How 405 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
7th percentile

Out of 1040 buildings in this neighborhood, 967 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
44%
No DBI
violation
56%
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.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 30.5%
Moderate concern 48.2%
Severe concern 21.3%
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

405 33Rd Ave event timeline

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

2026
Electrical Permit Jun 18
Online electrical permit: 1 of buildings with more than 12 dwelling units and non-residential occupany - building up to 3 floors. replacement of the fire alarm system and installation of low frequency horns in the units. installation of a wireless radio communicator..
Issued
311 RequestMar 25
Garbage and debris

See all 8 events

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

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Every record we have

Full data for 405 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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