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580-582 Corbett Ave

Twin Peaks, SF 94114 2718014 2 units · 1 fl · 1959

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Twin Peaks — not a forecast
At or below average
avg 2.7
0
FewerMore

This building has 0 novs (7y), at or below the Twin Peaks average of 2.7.

Rent & eviction protection

Is 580-582 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 1959
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.

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
Units2
Floors1
Year built1959
Total area2,233 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot2718014
Ownership

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

Owner name
Mailing address
Ng-tang Terrence E K Ttee 580 Corbett Ave #582 San Francisco CA 94114
Last sale
March 20, 2018

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

582 Corbett Ave, San Francisco, CA 94114
580 Corbett Ave, San Francisco, CA 94114
Augrented Insights
Initial analysis

The two-unit residential building at 580-582 Corbett Avenue in Twin Peaks is a single-story flats/duplex structure built in 1959 and currently owned by the Ng-Tang Family Trust. The property has undergone several significant renovations over the past decade, with the most recent work being a complete bathroom remodel in unit 582 in 2020 ($44,000), which included electrical upgrades such as exhaust fans and recessed lighting. In 2017, both units received kitchen updates including new cabinets, countertops, appliances, and electrical systems ($42,000), with subsequent structural revisions to install a new recessed beam in the kitchen. Additional improvements include a Level 2 EV charger installation in 2018, underground service conversion and 200A upgrade in 2004, and a reroofing project completed in 1990.

The building has experienced some infrastructure challenges, including a sewer backup incident in November 2017 and multiple sewer line permit applications in October-November 2017, though these issues do not appear to have persisted. A construction-related complaint was filed in July 2020 regarding work exceeding permit scope and construction noise, though this complaint is currently listed as not active. The property has experienced recurring issues with driveway blocking, with three incidents reported between 2019-2023, though enforcement officers were typically unable to locate the offending vehicles. A 2013 tree-related issue was resolved through replanting, and a 2010 building inspection complaint was assigned to Inspector Schroeder for follow-up.

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

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Risk rating

How 580-582 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

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
97thpercentile

Out of 172 buildings in this neighborhood, 5 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
89%
No DBI
violation
11%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Neighborhood location

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

DBI complaints, owner's portfolio

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

12-Month risk forecast
Low failure risk 11%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

580-582 Corbett Ave apartment reviews

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On the map

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The story over time

580-582 Corbett Ave event timeline

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

2025
311 Request Oct 30
Not offensive
pole
Building PermitJul 17
Remodel one kitchen and one full bathroom in kind. add a sub panel. no removal of walls

See all 9 events

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

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Every record we have

Full data for 580-582 Corbett Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 580-582 Corbett 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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