Free SF apartment background check

1159-1169 Union St

Russian Hill, SF 94109 0122025 6 units · 3 fl · 1925

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 Russian Hill
At or below average
avg 1.9
1
FewerMore

This building has 1 novs (7y), at or below the Russian Hill average of 1.9.

Rent & eviction protection

Is 1159-1169 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 1925
2 or more units
6 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units6
Floors3
Year built1925
Total area9,123 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0122025
Ownership

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

Owner name
2017 Lem Sek Wong Lvg Tr
Mailing address
Wong Lem Sek Ttee 1169 Union St San Francisco CA 94109
Last sale
101395

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.

1167 Union St, San Francisco, CA 94109
1159 Union St, San Francisco, CA 94109
1163 Union St, San Francisco, CA 94109
1169 Union St, San Francisco, CA 94109
1165 Union St, San Francisco, CA 94109
1161 Union St, San Francisco, CA 94109
Augrented Insights
Initial analysis

The 6-unit, 3-story multi-family residential building at 1159-1169 Union St in Russian Hill, managed by the 2017 Lem Sek Wong Living Trust, has undergone several significant improvements and faced some notable challenges since its construction in 1925. Most recently, in September 2023, a complaint was filed regarding mold presence in one of the units, with reports of health impacts and insufficient remediation following positive test results. The building achieved important seismic safety improvements with the completion of a $77,000 soft-story retrofit in 2016, complying with San Francisco building codes, and also underwent sewer line repairs in 2015.

The property has experienced several structural and maintenance issues over the years, including a concerning incident in February 2011 where a large piece of metal/wood fell from the building, and a series of violations in 2008 requiring licensed electrical and plumbing contractor services. Historical records show past improvements including reroofing work in 1998 and minor electrical work in 2009. The building has been the subject of multiple routine inspections by Housing Inspection Services between 2004 and 2023, though most recent routine complaints have been resolved. There has been consistent reporting of parking enforcement issues in the vicinity, with multiple citations issued for driveway blocking between 2020 and 2024, although these are external to the building's operations.

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 1159-1169 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
25th percentile

Out of 1133 buildings in this neighborhood, 850 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
52%
No DBI
violation
48%
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.

Neighborhood location

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

12-Month severity forecast
No violation 34.3%
Moderate concern 27.1%
Severe concern 38.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1159-1169 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

1159-1169 Union St event timeline

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

2026
Plumbing Permit Feb 26
Work category: 11p; replace existing backflow 1/2" wilkin 975xl , serial no. 613591 in the boiler room.
Complete
311 RequestJan 03
Encampment

See all 6 events

Full history back to 2023 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 1159-1169 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 1159-1169 Union St
Get alerted the moment a new violation or complaint is filed.