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2662-2664 Union St

Cow Hollow, SF 94123 0946011A 2 units · 4 fl · 1922

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 2662-2664 Union St 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 1922
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
Floors4
Year built1922
Total area5,908 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0946011A
Ownership

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

Owner name
Coyne Walter James
Mailing address
Kiernan Sheila D 2662 Union St San Francisco CA 94123
Last sale
050119

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.

2664 Union St, San Francisco, CA 94123
2662 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The Cow Hollow duplex at 2662-2664 Union Street, owned by Walter James Coyne, is a 4-story, 2-unit multi-family residential building constructed in 1922. The property has undergone several significant improvements over the past few decades, with the most recent major work being a $17,800 reroofing project completed in 2021. Other notable upgrades include the installation of an elevator in 1994, bathroom alterations in 1987, and various window improvements including the replacement of one window in 2018. The building has experienced two concerning fire-related incidents - one involving carbon monoxide and another hazardous condition - though thankfully neither resulted in civilian injuries. Potential health and safety issues were addressed promptly, including a fire alarm system issue in 2011 that was corrected the same day it was reported.

The property's recent maintenance and service history indicates active management, though there have been some recurring issues in the immediate vicinity. In 2023 alone, there were multiple reports of parking violations, including vehicles blocking driveways and parking on sidewalks. The building experienced a water leak in October 2023 that required PUC involvement, and there have been various infrastructure maintenance issues in the surrounding area, such as pavement defects and street cleaning needs. Earlier records show the 1995 removal of a solarium due to leaks and dry rot, though this work was completed. The property appears to be generally well-maintained, with most recent work focusing on routine upkeep and addressing specific issues as they arise.

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

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Risk rating

How 2662-2664 Union St'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
86th percentile

Out of 861 buildings in this neighborhood, 121 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.

Number of floors

Building height affects maintenance complexity and is one of the size signals the model uses.

Building size

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

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

12-Month severity forecast
No violation 78.4%
Moderate concern 16.9%
Severe concern 4.7%
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

2662-2664 Union St event timeline

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

2021
Building Permit Feb 25
Reroofing
$17,800 · Issued

See all 1 events

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

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Every record we have

Full data for 2662-2664 Union St 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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