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834 Corbett Ave

Twin Peaks, SF 94131 2779006 12 units · 3 fl · 1963

This building has more problems than most buildings in this neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

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 834 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 1963
2 or more units
12 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units12
Floors3
Year built1963
Total area10,770 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot2779006
Ownership

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

Owner name
Gaehwiler Family Llc
Mailing address
154 Miraloma Dr San Francisco CA 94127
Last sale
042898

Landlord portfolio

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

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Augrented Insights
Initial analysis

834 Corbett Avenue is a 12-unit, 3-story multi-family residential building constructed in 1963, currently owned by Gaehwiler Family Llc. The property has undergone several significant upgrades in recent years, with the most notable being a 2024 fire alarm system upgrade to comply with San Francisco Fire Code requirements, including new conduit, wiring, and devices, at a cost of approximately $68,000. The building successfully completed its mandatory soft-story retrofit in 2016, along with major improvements including window replacements (2016), complete stucco replacement (2017), and electrical system upgrades transitioning units from fuse panels to circuit breakers (2017-2019). Historical records show consistent maintenance including reroofing in 2011 and window replacements in 1994/1995.

The building has experienced occasional issues with its fire alarm system, as evidenced by multiple fire department responses for alarm malfunctions between 2015 and 2021, though none resulted in injuries or significant incidents. A notable complaint in 2016 regarding construction dust affecting a neighbor's health was documented but marked as resolved. The property has maintained good overall compliance with safety requirements, completing its soft-story retrofit and addressing various building violations in 2003 related to fire safety elements (e.g., fire escapes, exit signs) which were abated by March 2003. Recent 311 calls primarily relate to parking issues and occasional construction noise, with multiple documented cases of vehicles blocking driveways in 2024.

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

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Risk rating

How 834 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
26th percentile

Out of 172 buildings in this neighborhood, 127 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
41%
No DBI
violation
59%
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 35.5%
Moderate concern 33.5%
Severe concern 31.0%
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

834 Corbett Ave event timeline

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

2024
Building Permit Mar 12
Upgrade e) fire alarm system to comply w/ sffc
$45,560 · Complete
Electrical PermitMar 11
Install conduit and wire and devices for a new fire alarm system.

See all 3 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 834 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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