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477 34Th Ave

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

Nothing on record for this building in the last seven years, but our model still flags a rising risk of maintenance problems in the next 12 months. That forecast comes from the owner's wider portfolio and the surrounding area, not from this building's own record — treat it as a reason to ask questions, not as evidence of a problem. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Outer Richmond — not a forecast
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.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1959
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

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).

Mailing address
Ellen Yee 10554 Meteor Pl Cupertino CA 95014
Last sale
September 17, 1991

Landlord portfolio

Other SF properties this owner holds, with a risk rating 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
4thpercentile

Out of 1040 buildings in this neighborhood, 998 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

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 risk forecast
High failure risk 68%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

477 34Th Ave apartment reviews

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On the map

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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.

Side by side

How 477 34Th Ave compares to the neighborhood

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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