Free SF apartment background check

477 34Th Ave

Outer Richmond, SF 94121 1466046 12 units · 3 fl · 1959

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 477 34Th 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 1959
2 or more units
12 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
Units12
Floors3
Year built1959
Total area8,250 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1466046
Ownership

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

Owner name
Yee 1997 Living Trust
Mailing address
Ellen Yee 10554 Meteor Pl Cupertino CA 95014
Last sale
050500

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 12-unit, 3-story multi-family residential building at 477 34th Avenue in the Outer Richmond, owned by Yee 1997 Living Trust and constructed in 1959, has undergone several significant safety and maintenance upgrades over the past years. Most notably, in August 2023, the building completed an important fire alarm system upgrade costing $43,500 to bring it into compliance with current fire safety requirements, including the installation of low-frequency sounders in sleeping areas and updating the fire panel and devices. The building achieved compliance with the San Francisco Soft Story Ordinance in 2016, completing a $95,000 seismic retrofit (Tier 3) and installing U-fer grounding, which significantly improved the structure's seismic resilience.

The building's maintenance history shows regular upkeep, including a $30,000 reroofing project in 2019 and a kitchen cabinet replacement in Apartment 4 in 2020. Historical records from 2002 show multiple fire safety violations related to the central alarm system, smoke enclosure doors, combustible storage, and other fire safety concerns, though these were all properly addressed and abated by October 2002. There have been periodic fire alarm system issues, with complaints filed in 2015 and 2017 that were promptly corrected. A building complaint in 2019 raised concerns about unpermitted work and safety, but this was marked as not active. The property has also experienced two parking-related issues in recent years (2021 and 2022), both of which were resolved through citations.

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

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Risk rating

How 477 34Th 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
5th percentile

Out of 1040 buildings in this neighborhood, 988 are predicted to be safer.

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

Number of units

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

Neighborhood location

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

12-Month severity forecast
No violation 28.8%
Moderate concern 51.2%
Severe concern 20.0%
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

477 34Th Ave event timeline

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

2023
Electrical Permit Aug 31
Modification of an existing fire alarm system by upgrading the fire panel, update all existing devices to be compatible with new facp and provide low frequency sounders in all sleeping areas to meet 75db at pillow to comply with sffd bulletin 1103.7.6.1
Complete
Building PermitAug 10
Upgrade (e) f/a system to comply with sffc section 1103.7.6.1

See all 3 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 477 34Th 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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