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1680-1682 Union St

Cow Hollow, SF 94123 0528009A 2 units · 2 fl · 1922

A handful of records on file over the last seven years, and our model sees a moderate chance of more in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Cow Hollow — not a forecast
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 1680-1682 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
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.

Statewide backstop · AB 1482

California Tenant Protection Act of 2019

Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.

15+ years since occupancy
Built 1922
Annual rent increase cap
5% + CPI, max 10%
Just-cause eviction
After 12 months
Local rent control likely takes priority. This building appears to fall under the local ordinance above, which is stronger than AB 1482. Where a local just-cause ordinance applies, its rules govern instead of the state cap.

AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.

Building characteristics
Units2
Floors2
Year built1922
Total area3,100 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0528009A
Ownership

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

Owner name
Mailing address
1901 Lawton St San Francisco CA 94122
Last sale
October 31, 2003

Landlord portfolio

Other SF properties this owner holds, with a risk rating for each.

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Multiple entrances & addresses

Included addresses

All street addresses sharing this blocklot that are covered by this report.

1680 Union St, San Francisco, CA 94123
1682 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The two-unit, two-story multi-family residential building at 1680-1682 Union Street in Cow Hollow, owned by California 1 LLC, has a documented history dating back to its construction in 1922. The building has undergone several maintenance and improvement projects over the years, including a significant $24,000 reroofing project in 2011 and stair repair work in 1993. A noteworthy incident occurred in late 2019 when unpermitted work in a basement unit allegedly caused flooding and damage to tenant property, though this complaint is listed as not active in the system. The building has experienced various maintenance issues, including a sewage backup in 2019 that required immediate repairs, and a blocked exit violation that was promptly corrected in 2010.

The property has faced multiple incidents of graffiti and sidewalk obstruction between 2017-2023, with several involving public infrastructure like mailboxes and sidewalks, though these are not directly related to the building's condition. In 2018, there was a sewer vent issue requiring urgent attention. A proposed project from 2002 to raise the top two stories and add a new story was ultimately cancelled. A carbon monoxide detector activation was recorded at some point, though no civilian injuries were reported. The building's maintenance history shows regular upkeep in the form of reroofing and stair repairs, while the 2019 incident remains the most concerning from a resident safety perspective, despite not being classified as an active complaint.

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

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Risk rating

How 1680-1682 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

Lower risk — safer than most nearby

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Typical — about average for the neighborhood

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Higher risk — riskier than most nearby

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
36thpercentile

Out of 861 buildings in this neighborhood, 551 are predicted to be safer. The band is relative to this neighborhood, so a share of every neighborhood falls in each colour.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Permit rate, owner's portfolio

Per-building permit rate across the owner's portfolio.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month risk forecast
Moderate failure risk 30%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1680-1682 Union St apartment reviews

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The story over time

1680-1682 Union St event timeline

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

2026
Plumbing Permit Jul 10
Work category: 1m; install new heat pump ducted system with air handler installed in the closet and outdoor hp on the roof.
Issued
Plumbing PermitMar 09
Remodel two bathrooms, one kitchem and one laundry room.

See all 5 events

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

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Every record we have

Full data for 1680-1682 Union St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

Side by side

How 1680-1682 Union St compares to the neighborhood

This building against comparable properties in Cow Hollow. Toggle filters to narrow the peer group.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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