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476-478 Corbett Ave

Clarendon Heights, SF 94114 2719017 2 units · 2 fl · 1948

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 476-478 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 1948
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
Floors2
Year built1948
Total area2,248 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2719017
Ownership

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

Owner name
Andreas J & Mary Mourelatos
Mailing address
Mary Mourelatos Trustee Po Box 72 Tahoe Vista CA 96148
Last sale
040897

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

478 Corbett Ave, San Francisco, CA 94114
476 Corbett Ave, San Francisco, CA 94114
Augrented Insights
Initial analysis

The duplex at 476-478 Corbett Avenue, located in the Clarendon Heights neighborhood, is a two-story multi-family residential building constructed in 1948 and currently owned by Andreas J & Mary Mourelatos. The property has undergone several significant maintenance and infrastructure improvements over the years, including a 2013 complete replacement of the house trap, installation of underground electrical service in 2005, and multiple plumbing upgrades. Of particular note is a substantial cluster of building violations filed in April 2000, which included issues with windows, stairs, insulation, and fire safety concerns, though all violations were officially abated by February 2002. The building's maintenance history shows attention to window and exterior upkeep, with permits for vinyl windows and siding installation in 2000, and a stair repair in 1995.

Recent records indicate several infrastructure issues, particularly in the years 2013-2014, including multiple sewage backup incidents that required professional intervention and coordination between the owner and city services. The property has also experienced some exterior maintenance challenges more recently, with a collapsed sidewalk reported in 2022. All known violations and complaints have been resolved according to official records, with the most recent building-related service calls being for utility billing matters in 2024. The building's unit configuration remains as originally built, with two separate residential units under the flats/duplex classification.

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

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Risk rating

How 476-478 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
88th percentile

Out of 40 buildings in this neighborhood, 5 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
88%
No DBI
violation
12%
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 age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 82.0%
Moderate concern 12.1%
Severe concern 5.9%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

476-478 Corbett Ave event timeline

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

2024
311 Request Sep 25
Public utilities commission
billing customer callback

See all 1 events

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

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Every record we have

Full data for 476-478 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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