Free SF apartment background check

20 Lessing St

Outer Mission, SF 94112 7160016 2 units · 2 fl · 1930

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 Outer Mission
At or below average
avg 2.6
0
FewerMore

This building has 0 novs (7y), at or below the Outer Mission average of 2.6.

Rent & eviction protection

Is 20 Lessing 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 1930
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
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 built1930
Total area2,200 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot7160016
Ownership

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

Owner name
Helen Yang Trust
Mailing address
Yang Helen,trustee 20 Lessing St San Francisco CA 94112
Last sale
042799

Landlord portfolio

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

Unlock complete report
Augrented Insights
Initial analysis

The property at 20 Lessing Street is a two-unit, two-story multi-family residential building located in the Outer Mission neighborhood, built in 1930 and currently owned by the Helen Yang Trust. The building's maintenance history shows two significant permitted improvements: a bathroom remodel completed in 1990 and a roof replacement undertaken in 2015 at a cost of $5,900.

The most pressing recent issues affecting the property and surrounding area relate to parking and waste management. Between August and October 2024, there were eight documented incidents of parking violations, including multiple cases of vehicles parking on sidewalks and one instance of a blocked driveway, all resulting in citations. There was also a notable cluster of waste management issues in August 2024, with several reports of abandoned furniture and mattresses on or near the property, though some of these cases were marked as unable to locate or resolved by Recology.

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 20 Lessing 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
45th percentile

Out of 112 buildings in this neighborhood, 62 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
68%
No DBI
violation
32%
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.

Construction spend, owner's portfolio

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

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

12-Month severity forecast
No violation 49.9%
Moderate concern 21.1%
Severe concern 29.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

20 Lessing 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

20 Lessing St event timeline

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

2026
311 Request Apr 08
Blocking driveway cite only
Parking Enforcement

See all 2 events

Full history back to 2024 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 20 Lessing 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 20 Lessing St
Get alerted the moment a new violation or complaint is filed.