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447 26Th Ave

Central Richmond, SF 94121 1458009 6 units · 2 fl · 1963

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

NOVs (7y) vs. neighborhood
Compared to a typical building in Central Richmond
At or below average
avg 0.5
0
FewerMore

This building has 0 novs (7y), at or below the Central Richmond average of 0.5.

Rent & eviction protection

Is 447 26Th 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 1963
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units6
Floors2
Year built1963
Total area4,320 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1458009
Ownership

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

Owner name
Hung Yuen Woo Surviving Spo
Mailing address
Hung Yuen Woo Trustee 1961 23Rd Ave San Francisco CA 94116
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 six-unit, two-story multi-family residential building at 447 26th Avenue in the Central Richmond neighborhood has undergone several notable safety system upgrades and faced various maintenance issues since its construction in 1963. Most recently, in March 2023, the building received an upgrade to its fire alarm system, including the installation of low-frequency horns, indicating ongoing efforts to maintain and improve safety systems. The building experienced significant safety system violations in 2003, with multiple citations issued for problems with the central alarm system, fire escape drop ladder maintenance, and smoke enclosure door closers, though these were all promptly addressed and abated by September 18, 2003. A similar pattern of attention to safety systems was evidenced by a fire alarm systems complaint in April 2016 that was resolved within four days.

More recent occurrences in 2023 have raised some concerns, including two hazardous materials incidents in October 2023, one of which related to paint and lead safety practices that was accepted by DBI for further review. The property has also experienced recurring parking enforcement issues, with multiple citations for blocked driveways between 2017 and 2024, though enforcement response has often been unable to locate the offending vehicles. General maintenance and sanitation issues have been addressed through various DPW operations calls for street and sidewalk cleaning between 2017 and 2024, though most of these were resolved without direct intervention. The building's most recent routine inspection occurred in 1996, suggesting a potential gap in comprehensive building evaluations since that time.

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

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Risk rating

How 447 26Th 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
29th percentile

Out of 2250 buildings in this neighborhood, 1598 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
78%
No DBI
violation
22%
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 age

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

Estimated permit spend (past 7 years)

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

12-Month severity forecast
No violation 70.4%
Moderate concern 19.9%
Severe concern 9.6%
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

447 26Th Ave event timeline

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

2026
Electrical Permit Feb 04
Pa# 202510097079 ref# e202601208382
Complete
Electrical PermitJan 20
Online electrical permit: 60 of buildings of 6 dwelling units or less. 6 unit 3 story building upgrade fas to comply with sffd ab 3.08 sar.

See all 5 events

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

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Every record we have

Full data for 447 26Th 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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