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549 Corbett Ave

Twin Peaks, SF 94114 2717007 6 units · 3 fl · 1957

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 549 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 1957
2 or more units
6 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
Units6
Floors3
Year built1957
Total area3,870 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2717007
Ownership

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

Owner name
Mccw Llc
Mailing address
Wilson M Chan P.O. Box 8474 Stockton CA 95208
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 6-unit, 3-story apartment building at 549 Corbett Avenue in Twin Peaks, owned by MCCW LLC and constructed in 1957, has undergone several significant improvements and repairs over the past few decades. Most notably, the building completed a mandatory seismic retrofit in 2017 to address soft-story vulnerabilities, as well as a comprehensive furnace replacement project that same year. In 2016, the property faced compliance issues regarding unauthorized work, including deck replacements and drainage modifications, which were subsequently addressed through proper permitting, including repairs to deck dry rot. Earlier maintenance includes a 2010 handrail installation to resolve a violation, and various infrastructure improvements such as roof replacement (1997), concrete garage floor replacement (1986), and fence repairs (1995).

The building has a documented history of addressing safety and code compliance issues, including multiple building violations from 2002-2010 related to handrails, security viewers, and fire safety requirements, all of which were brought into compliance. Recent 311 calls (2020-2023) primarily consist of routine street maintenance issues such as graffiti removal and general cleaning, though one call in 2018 regarding sewer issues was investigated and found to have no problems. The property has maintained active compliance with housing inspections, with the most recent routine inspection occurring in 2017, and has successfully completed all mandatory safety improvements, including the soft-story retrofit classified as Tier 3 with Certificate of Final Completion issued. The building's maintenance record shows regular attention to both building systems and safety requirements, though there have been some instances of work being performed without proper permits, which were subsequently addressed through appropriate channels.

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

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Risk rating

How 549 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
56th percentile

Out of 172 buildings in this neighborhood, 76 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
62%
No DBI
violation
38%
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 size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

Neighborhood location

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

12-Month severity forecast
No violation 44.6%
Moderate concern 20.3%
Severe concern 35.0%
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

549 Corbett Ave event timeline

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

2025
311 Request Mar 29
Not offensive
other

See all 1 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 549 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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