Free SF apartment background check

1743-1747 Union St

Cow Hollow, SF 94123 0544014 2 units · 2 fl · 1908

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 1743-1747 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 1908
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.

Building characteristics
Units2
Floors2
Year built1908
Total area1,450 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0544014
Ownership

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

Owner name
Tse Living Trust
Mailing address
Alan Tse 191 San Felipe Ave San Francisco CA 94127
Last sale
041498

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

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

1747 Union St, San Francisco, CA 94123
1743 Union St, San Francisco, CA 94123
1745 Union St, San Francisco, CA 94123
Augrented Insights
Initial analysis

The property at 1743-1747 Union Street is a two-story, multi-family residential building with a ground-floor storefront, built in 1908 and owned by Tse Living Trust. The building underwent significant improvements in late 2017, including a comprehensive kitchen and bathroom remodel with new fixtures, tiles, and electrical updates, with a total renovation cost of $15,000. The building has a documented history of maintaining its infrastructure, including a rooftop replacement (2000) and several window upgrades (1994), though an expired roofing permit from 2000 and a completed permit to remove unauthorized work from 2000 are noteworthy. The property has experienced two fire-related incidents in recent years (2022-2023), with violations issued for hazardous materials handling and general permit issues, though all violations were subsequently abated.

The surrounding area has experienced ongoing maintenance challenges, as evidenced by multiple 311 calls in 2024 regarding garbage and debris, street lighting issues, and pavement defects. Recent municipal service records show recurring street cleaning needs, with three cases of abandoned furniture and debris between July and October 2024. The building's immediate location has faced persistent urban maintenance issues, with multiple street cleaning operations required over the past two years, including the need for general cleaning in 2023-2024. While the building itself has generally complied with permit requirements following the 2017 renovations, the surrounding area continues to experience various infrastructure and maintenance challenges that may impact resident quality of life.

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

Free account unlocks the full analysis — plus 2× more records across all data categories and the complete landlord portfolio.
Risk rating

How 1743-1747 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
56th percentile

Out of 861 buildings in this neighborhood, 379 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
81%
No DBI
violation
19%
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.

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

Property class: apartment building

Apartment building — this property classification influences expected violation rates.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

12-Month severity forecast
No violation 73.9%
Moderate concern 14.5%
Severe concern 11.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1743-1747 Union St apartment reviews

Real experiences from people who have lived here. Share yours to help other renters decide.

Share your experience — Help other renters by leaving an honest apartment review

Loading reviews…

On the map

Compare nearby alternatives

This building and nearby alternatives, color-coded by risk level. Click any marker to explore.

Buildings nearby
Loading…
The story over time

1743-1747 Union St event timeline

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

2026
DBI Complaint Jan 12
Date last observed: 11-jan-26; exact location: main bldg; building type: residence/dwelling ; additional information: this is a nail care shop. address numbers are not atleast 4 inches high and don’t have required stroke width in violation of the code ;
Code Enforcement Section
DBI ComplaintJan 12
Date last observed: 11-jan-26; exact location: main bldg; building type: residence/dwelling other building; ; additional information: this is a shoe repair shop. no address identification displayed ;

See all 4 events

Full history back to 2022 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 1743-1747 Union St apartments

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

Still apartment hunting in SF?

Look up the next apartment before you sign

Search any SF address free — no account needed to see the risk rating.

Simple pricing

Get the complete picture

Every plan unlocks the complete report: all 13 SF datasets, full history, landlord portfolio, and PDF & Excel exports.

Report Bundle

For the buildings you're deciding on right now

$10 one-time

~$3.33 per building. No subscription ever. Each credit unlocks one building's premium report for 30 days.

  • 3 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 3 Reports — $10

Apartment Hunter

For a wide search across many buildings

$39 one-time

30 reports — ~$1.30 each. No subscription ever.

  • 30 full AI-powered reports
  • Download PDF reports
  • Advanced safety analysis
  • Compare multiple buildings
  • Credits never expire until you use them
  • Full public records (200 rows per dataset)
Buy 30 Reports — $39

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

Watch 1743-1747 Union St
Get alerted the moment a new violation or complaint is filed.