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1861-1863 Union St

Cow Hollow, SF 94123 0543027 3 units · 2 fl · 1905

This building has significantly more problems than most nearby buildings. 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 1861-1863 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 1905
2 or more units
3 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
Units3
Floors2
Year built1905
Total area6,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0543027
Ownership

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

Owner name
Oak Union Street Llc
Mailing address
3650 Mt Diablo Blvd Ste 220 Lafayette CA 94549
Last sale
032219

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.

1861 Union St, San Francisco, CA 94123
1863 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The mixed-use property at 1861-1863 Union Street in Cow Hollow is a two-story, three-unit building constructed in 1905, currently owned by Oak Union Street LLC. The building has undergone significant recent changes, most notably a major renovation in 2021-2022 that included rafter repairs and roof restoration ($16,000) following a collapse, structural revisions, wall repairs, and concrete work ($5,000). The property underwent a substantial interior renovation in 2021 ($850,000) to modernize the retail store space, along with plumbing and electrical upgrades. In late 2021, the second floor was converted from a single-family dwelling to a two-unit dwelling, including the addition of new kitchen and bathroom facilities.

The building has a history of compliance issues regarding the Vacant Commercial Storefront Ordinance, with multiple violations recorded between 2018-2019, though these were all eventually abated. More recently, there was an illegal occupancy violation issued in November 2023, and an open violation regarding change of use was noted in the building's fire inspection records. The property has generated several noise complaints in 2024 related to entertainment activities, with at least one resulting in a notice of violation for operating entertainment after 11 PM. Historical records show a significant building incident in 2006 when the structure was reported to be leaning approximately 8 inches.

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

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Risk rating

How 1861-1863 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
16th percentile

Out of 861 buildings in this neighborhood, 723 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
54%
No DBI
violation
46%
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.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

Building age

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

12-Month severity forecast
No violation 40.7%
Moderate concern 55.9%
Severe concern 3.3%
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

1861-1863 Union St event timeline

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

2024
311 Request Mar 17
Mechanical equipment
Noise Report - mechanical equipment
311 RequestMar 17
Mechanical equipment

See all 16 events

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

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Every record we have

Full data for 1861-1863 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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