Free SF apartment background check

580-582 Corbett Ave

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

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 Twin Peaks
At or below average
avg 3.0
0
FewerMore

This building has 0 novs (7y), at or below the Twin Peaks average of 3.0.

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.

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
Ng-Tang Fmly Tr
Mailing address
Ng-tang Terrence E K Ttee 580 Corbett Ave #582 San Francisco CA 94114
Last sale
042621

Landlord portfolio

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

Unlock complete report
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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
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

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
98th percentile

Out of 172 buildings in this neighborhood, 3 are predicted to be safer.

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 severity forecast
No violation 77.7%
Moderate concern 17.4%
Severe concern 4.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

580-582 Corbett Ave apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
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.

Unlock complete timeline
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.

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

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

Watch 580-582 Corbett Ave
Get alerted the moment a new violation or complaint is filed.