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1837-1845 Union St

Cow Hollow, SF 94123 0543030 7 units · 2 fl · 1906

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Cow Hollow
Above average
avg 0.7
1
FewerMore

This building has 1 novs (7y), above the Cow Hollow average of 0.7.

Rent & eviction protection

Is 1837-1845 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 1906
2 or more units
7 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
Units7
Floors2
Year built1906
Total area6,707 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0543030
Ownership

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

Owner name
Lucca Holdings Llc
Mailing address
1970 Avy Ave Menlo Park CA 94025
Last sale
062017

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.

1839 Union St, San Francisco, CA 94123
1841 Union St, San Francisco, CA 94123
1843 Union St, San Francisco, CA 94123
1837 Union St, San Francisco, CA 94123
1845 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The property at 1837-1845 Union Street is a two-story, seven-unit multi-family residential building with ground floor commercial space, constructed in 1906 and currently owned by Lucca Holdings LLC. The building has undergone significant recent improvements, with the most notable being an upcoming accessibility modification scheduled for February 2024 to relocate the front entry door and install an interior ramp with an automatic door, as part of the Accessible Business Entrance program. In 2021-2022, there were some compliance issues regarding unauthorized signage for "Honey & Stardust" that resulted in violations but were ultimately abated. The building has seen substantial unit upgrades, including a complete renovation of Unit C in 2017 with new plumbing, electrical, and fixtures, as well as significant commercial space improvements in 2017 involving electrical work, lighting, and disabled access modifications.

Historical records show a pattern of improvements and some permit compliance issues, particularly in 2015 when there were violations related to unpermitted demolition work. The property has also been subject to various maintenance and compliance calls in 2024 regarding garbage management and sidewalk cleanliness, though these are more indicative of general property maintenance rather than specific building issues. The building's systems have been regularly updated, with records showing the replacement of major systems including the furnace (2015), water heater (2015), and various unit upgrades involving electrical systems, plumbing, and kitchen/bathroom remodels between 2015-2017. The most recent building permit activity demonstrates ongoing investment in improving the property's accessibility and storefront appearance, while the 2024 311 calls primarily relate to street-level maintenance rather than building-specific issues.

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

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Risk rating

How 1837-1845 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
4th percentile

Out of 861 buildings in this neighborhood, 827 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
33%
No DBI
violation
67%
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.

DBI tenant complaints (past 7 years)

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

12-Month severity forecast
No violation 29.2%
Moderate concern 38.1%
Severe concern 32.7%
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

1837-1845 Union St event timeline

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

2026
Electrical Permit May 13
Install and wire for (19) new ceiling lights, (19) new wall sconces, (2) new center pendants, (4) new switches, (3) new circuits,
Issued

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 1837-1845 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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