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433 Corbett Ave

Clarendon Heights, SF 94114 2712010 2 units · 3 fl · 1908

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 Clarendon Heights
At or below average
avg 1.5
0
FewerMore

This building has 0 novs (7y), at or below the Clarendon Heights average of 1.5.

Rent & eviction protection

Is 433 Corbett 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 1908
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 built1908
Total area1,788 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2712010
Ownership

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

Owner name
Cooper Worcester Family Tru
Mailing address
Cooper Maria & Worcester Sa 433 Corbett Ave San Francisco CA 94114
Last sale
061900

Landlord portfolio

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

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Augrented Insights
Initial analysis

The 433 Corbett Avenue property is a three-story, two-unit multi-family residential building located in the Clarendon Heights neighborhood, built in 1908 and currently owned by the Cooper Worcester Family Trust. The building's maintenance and improvement history includes several significant renovations and some concerning compliance issues. Major permitted improvements have included basement remodeling for storage and bathroom/kitchen updates in 1995, aluminum window installations in 1988-1989, a gas houseline extension in 2011 for both 433 and 435 Corbett, and a 200-amp underground electrical conversion in 2004. Of particular concern are two building complaints: one in 2014 regarding unpermitted roofing work, and another in 1994 involving unauthorized deck construction and basement room modifications, though the latter was eventually abated in 1996. Additionally, a short-term rental violation was recorded in the planning records, related to both 433 and 435 Corbett Avenue.

Recent activity at the property has been relatively minor, with several 311 calls primarily concerning street cleaning issues, including a Christmas tree pickup in 2023, and some reports of hazardous materials (glass) on the street in 2009 and 2014. The building has experienced two fire department responses: one for a carbon monoxide detector activation (malfunction) and another for assisting an invalid, neither resulting in civilian injuries. The property's permit history shows regular maintenance and upgrades, though the presence of multiple building complaints regarding unpermitted work raises some concerns about past compliance with construction regulations. The most recent major building system upgrades (electrical and plumbing) were completed over a decade ago, with no recent permits on record for significant improvements or repairs.

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

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Risk rating

How 433 Corbett 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
70th percentile

Out of 40 buildings in this neighborhood, 12 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
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 permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

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 79.7%
Moderate concern 14.6%
Severe concern 5.7%
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

433 Corbett Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 433 Corbett 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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