Free SF apartment background check

858-862 Union St

Russian Hill, SF 94133 0100018 4 units · 3 fl · 1907

This building has more problems than most buildings in this neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

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 858-862 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 1907
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units4
Floors3
Year built1907
Total area4,731 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0100018
Ownership

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

Owner name
Mash Abbas & Mofrad Dalileh
Mailing address
18 Deer Oaks Dr Pleasanton CA 94588
Last sale
032316

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.

860 Union St, San Francisco, CA 94133
858 Union St, San Francisco, CA 94133
862 Union St, San Francisco, CA 94133
Augrented Insights
Initial analysis

The three-story multi-family residential building at 858-862 Union Street in Russian Hill, owned by Mash Abbas & Mofrad Dalileh, is a four-unit flats and duplex structure built in 1907. The building has experienced several significant maintenance and safety issues in recent years, most notably in early 2023 when at least three wind-damaged broken flue pipes on the rooftop created safety concerns regarding debris falling hazards. This followed earlier ventilation issues documented in mid-2022, and heating system violations in late 2012 when the building failed to maintain required heat levels and smoke detector compliance, leading to official notices and a mandatory heating system replacement completed in 2013. The property has a history of addressing necessary improvements, including roofing work in 1989 and aluminum window installations in 1986, though some issues have recurred, such as the 2022 and 2023 rooftop vent concerns.

The building's recent history shows particular attention to ventilation and heating system issues, with multiple complaints and violations related to these systems between 2012 and 2023. Additional maintenance history includes a sewage backup incident in 2004 and various routine inspections. The property has experienced frequent issues with parking enforcement in the vicinity, with multiple citations issued for driveway blocking between 2020 and 2023, though these are not directly related to building maintenance or resident safety. While recent building permits indicate some ongoing maintenance attention, the pattern of recurring ventilation issues suggests a need for continued monitoring of building systems. The property has had two categorized fire complaints, though both were found to have no merit or were referred to another agency.

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 858-862 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
22th percentile

Out of 1133 buildings in this neighborhood, 884 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
44%
No DBI
violation
56%
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.

DBI tenant complaints (past 7 years)

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

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 28.1%
Moderate concern 22.8%
Severe concern 49.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

858-862 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

858-862 Union St event timeline

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

2025
DBI Complaint Nov 13
No heat, small holes in the walls bdrms, draft, mold
Housing Inspection Services

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 858-862 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 858-862 Union St
Get alerted the moment a new violation or complaint is filed.