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449-451 34Th Ave

Outer Richmond, SF 94121 1466009 2 units · 3 fl · 1900

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 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 449-451 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 1900
2 or more units
2 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
Units2
Floors3
Year built1900
Total area4,632 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1466009
Ownership

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

Owner name
You Fmly Tr
Mailing address
You Johnson & Joy Li Ttees 47 Beaumont Ave San Francisco CA 94118
Last sale
022514

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.

449 34th Ave, San Francisco, CA 94121
451 34th Ave, San Francisco, CA 94121
Augrented Insights
Initial analysis

The property at 449-451 34th Avenue in the Outer Richmond is a three-story, multi-family residential building constructed in 1900, currently containing two units. The most significant recent development was a major conversion completed in 2008, where the building was transformed from a two-story single-family residence into a four-story, two-unit residential building through substantial vertical and horizontal additions, with a construction cost of $928,000. This renovation project included comprehensive updates to the building's systems, as evidenced by subsequent permits in 2012 showing the installation of new fireplaces, furnaces, kitchen hoods, and an extensive electrical upgrade with 200 amps main service, three meters, and numerous electrical fixtures and appliances.

The building underwent several critical infrastructure improvements in the late 1980s, including foundation work in 1986-1988, and received additional renovations in 2012 involving structural revisions, floor plan updates, and the addition of two fireplaces. A minor building complaint was filed in December 2012 regarding unauthorized work on a stairwell wall, though this was promptly addressed. The property has seen regular maintenance and compliance with safety standards, including the installation of 16 smoke detectors during the 2012 renovations. While there have been multiple 311 calls related to parking violations and sidewalk access issues between 2020-2024, these do not directly reflect on the building's conditions or management. The most recent building activity includes reports of abandoned furniture and debris on the street outside the property in late 2024, though these were promptly resolved by city services.

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

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Risk rating

How 449-451 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
61th percentile

Out of 1040 buildings in this neighborhood, 406 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

Building age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

12-Month severity forecast
No violation 70.4%
Moderate concern 17.3%
Severe concern 12.4%
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

449-451 34Th Ave event timeline

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

2024
311 Request Nov 04
Garbage and debris
furniture

See all 1 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 449-451 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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