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627 Corbett Ave

Twin Peaks, SF 94114 2717029 7 units · 3 fl · 1962

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 627 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 1962
2 or more units
7 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
Units7
Floors3
Year built1962
Total area4,698 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2717029
Ownership

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

Owner name
Ging S & Cynthia L Wong Rev
Mailing address
1566 Portola Dr San Francisco CA 94127
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 7-unit, 3-story multi-family residential building at 627 Corbett Ave in Twin Peaks, owned by Ging S & Cynthia L Wong Rev, has undergone several significant safety and maintenance improvements since its construction in 1962. Most notably, the building completed a mandatory soft-story retrofit in 2015 (cost: $75,000) and is currently updating its fire safety features with a new fire alarm control panel and bedroom sounders in 2024 (cost: $26,057). The building has experienced recurring issues with its alarm system, with multiple complaints documented between 2006 and 2024, including three violations in 2023-2024 related to sleeping area requirements and system maintenance. Historical maintenance work includes substantial deck repairs in 2012-2013 addressing dry rot issues (cost: $38,000 combined), two roof replacements in 1991 and 2017 (cost: $11,400), and various electrical upgrades including the recent meter relocation in 2024.

The property has a documented history of fire safety violations from 2002 and 2011 that were resolved, including issues with fire-rated doors, self-closing devices, and sprinkler requirements. More recent fire system violations were noted in 2023, though some earlier violations from 2006 and 2008 were closed. The building's maintenance history shows regular attention to structural issues, particularly regarding exterior decks, which have required multiple repairs and improvements over the years. Recent complaints primarily relate to parking enforcement matters on the surrounding street, with several documented cases of vehicles blocking driveways between 2022-2024, though these are external to the building itself and relate to street parking regulations. The property has experienced two recorded fire incidents, though neither resulted in civilian injuries, with causes listed as cooking-related and electrical equipment issues.

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

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Risk rating

How 627 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
81th percentile

Out of 172 buildings in this neighborhood, 33 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
72%
No DBI
violation
28%
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.

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.

12-Month severity forecast
No violation 55.1%
Moderate concern 23.8%
Severe concern 21.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

627 Corbett Ave event timeline

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

2025
Building Permit Sep 26
Approx 4 x 4 stucco repair, back of bldg, like for like repair and materials.
$2,000 · Complete
311 RequestApr 18
Blocking driveway cite only

See all 6 events

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

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Every record we have

Full data for 627 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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