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12 Imperial Aly

Cow Hollow, SF 94123 0521028 2 units · 2 fl · 1906

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 Cow Hollow
At or below average
avg 0.7
0
FewerMore

This building has 0 novs (7y), at or below the Cow Hollow average of 0.7.

Rent & eviction protection

Is 12 Imperial Aly 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 1906
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH3
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 built1906
Total area1,638 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot0521028
Ownership

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

Owner name
Spear William L & Lynne
Mailing address
12 Imperial Ave San Francisco CA 94123
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 two-unit residential building at 12 Imperial Alley in Cow Hollow is a two-story flats and duplex structure built in 1906, currently owned by William L. and Lynne Spear. The building has undergone several significant maintenance and improvement projects over the years, including a reroofing project in 2019 costing $18,560, and substantial work on the rear steps and railing system in 2012 involving replacement of rotten components and upgrading safety features for $8,000. Earlier improvements included the installation of vinyl siding on the building's rear in 2000 and seismic and foundation repairs with additional improvements in 1991, though the latter two permits are noted as expired.

The property has experienced multiple sanitation-related issues over recent years, with nine documented instances between 2012 and 2015 regarding improper management of waste containers, specifically toters being left out continuously. These reports were primarily handled by the Department of Public Works (DPW), with several cases being marked as "Privately maintained street - DPW cannot enforce," particularly in 2012. Of particular note, there was one gas leak incident reported (though the date is not specified in the records) which resulted in no civilian injuries. The building's maintenance record shows regular upkeep of critical systems, though the frequency of waste management issues suggests ongoing challenges with refuse container handling in the vicinity.

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

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Risk rating

How 12 Imperial Aly'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
78th percentile

Out of 861 buildings in this neighborhood, 189 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
86%
No DBI
violation
14%
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.

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.

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 71.1%
Moderate concern 15.6%
Severe concern 13.3%
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

12 Imperial Aly event timeline

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

2024
Fire Incident Aug 03 Serious
740 Unintentional transmission of alarm, other
Injuries: 0 · Fatalities: 0

See all 3 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 12 Imperial Aly 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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