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1763-1771 Union St

Cow Hollow, SF 94123 0544011B 19 units · 4 fl · 1927

This building has more problems than most buildings in this neighborhood. 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 1763-1771 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 1927
2 or more units
19 units
Property type
Multi-Family Residential
Zoning
UNION
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
Units19
Floors4
Year built1927
Total area15,500 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0544011B
Ownership

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

Owner name
Cow Hollow Apts Llc
Mailing address
Peter F Chan 1235 31St Ave San Mateo CA 94403
Last sale
021402

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.

1771 Union St, San Francisco, CA 94123
1763 Union St, San Francisco, CA 94123
1767 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The Cow Hollow Apartments at 1763-1771 Union Street is a 4-story, 19-unit multi-family residential building with commercial space, constructed in 1927 and currently owned by Cow Hollow Apts LLC. The property has undergone several significant improvements in recent years, including a major dental office renovation in 2022 ($300,000) with associated electrical ($45,000) and plumbing ($5,500) work. A fire alarm system modification to comply with current sleeping area requirements was recently issued in July 2024 ($31,546), and a subsequent fire alarm witness test is scheduled for December 2024. The building has experienced multiple fire safety-related issues over the years, with recent violations including a December 2023 citation for sleeping area requirements, though some past violations have been abated, including those related to exits/obstructions and fire extinguishers in 2019.

The building has a history of maintenance and safety compliance issues, with the most significant cluster of violations occurring in 2005 related to heating system maintenance, fire escape maintenance, and smoke enclosure requirements, all of which were abated by January 21, 2005. In 2014, the building experienced fire damage and flooding in unit 103, which generated multiple complaints regarding unpermitted construction work during repairs. Recent maintenance work has included boiler pipe replacement in 2019, reroofing in 2017, and window replacement in 2011. The property has also faced some water drainage issues, with complaints in 2016 regarding overflowing gutters affecting neighboring properties. While the building has had various fire safety complaints and incidents over the years, including sprinkler system issues and multiple false alarms, it is notable that recent construction and modifications have focused on improving safety systems, particularly the fire alarm modifications currently in progress. The property is subject to ongoing oversight, with several recent permits and violations indicating active efforts to maintain and upgrade building systems, though occasional safety violations do occur, as evidenced by the most recent sleeping area requirement violation from December 2023.

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

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Risk rating

How 1763-1771 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
27th percentile

Out of 861 buildings in this neighborhood, 629 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.

Property class

The assessor's property-class code, which correlates with building type and the violation rates the model expects. This code is grouped with other less-common classes.

Building size

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

12-Month severity forecast
No violation 38.0%
Moderate concern 52.6%
Severe concern 9.3%
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

1763-1771 Union St event timeline

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

2024
Electrical Permit Dec 11
Fire alarm and witness test
Complete
Building PermitJul 03
Fire alarm system modification to comply with sffc 3.08 section 1103.7.6.1 sleeping area requirements

See all 13 events

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

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Every record we have

Full data for 1763-1771 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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