Free SF apartment background check

542-544 London St

Excelsior, SF 94112 6272005 2 units · 1 fl · 1966

Nothing on record for this building in the last seven years, and our model puts it at a low risk of maintenance problems over the next 12 months. No public enforcement record to go on. Walk the building, ask the current tenants how repairs get handled, and get any promises in writing.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Excelsior — not a forecast
At or below average
avg 1.4
0
FewerMore

This building has 0 novs (7y), at or below the Excelsior average of 1.4.

Rent & eviction protection

Is 542-544 London 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 1966
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH2
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 1966
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
Floors1
Year built1966
Total area2,104 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6272005
Ownership

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

Owner name
Mailing address
542-544 London St San Francisco CA 94112
Last sale
May 13, 2015

Landlord portfolio

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

Unlock complete report
Multiple entrances & addresses

Included addresses

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

542 London St, San Francisco, CA 94112
544 London St, San Francisco, CA 94112
Augrented Insights
Initial analysis

The property at 542-544 London Street is a single-story, two-unit multi-family residential building located in the Excelsior neighborhood, constructed in 1966 and currently owned by Liu Wanbing. The building has undergone significant renovations in recent years, with substantial work completed in 2016 including comprehensive kitchen and bathroom remodels, electrical rewiring, and bathroom demolitions and replacements totalling over $30,000 in building permits alone. Earlier improvements include bathroom tile and floor replacements, along with interior painting in 2014, and window replacements were attempted in 2015, though that permit was ultimately cancelled.

The property has been subject to numerous parking and sidewalk-related complaints in recent months, particularly during 2024, with multiple reports of parking violations including driveway blocking and sidewalk parking, though many of these incidents resulted in "Unable to Locate" responses from enforcement officers. There have also been several reports of garbage and debris issues, particularly involving abandoned electronics, with mixed resolution outcomes. The building's maintenance history shows regular upkeep, including window replacements in 1991 and front windows work planned in 2015. Notably, there was a tenant buyout recorded in January 2016 for $40,000, though only one tenant was involved in this transaction. The most recent building activity involves multiple resolved cases of street cleaning and parking enforcement, indicating ongoing attention to the property's immediate surroundings.

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 542-544 London 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
90thpercentile

Out of 337 buildings in this neighborhood, 34 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
82%
No DBI
violation
18%
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 risk forecast
Low failure risk 18%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

542-544 London 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

Create account

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
8 found
The story over time

542-544 London St event timeline

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

No dated public records on file yet.
Every record we have

Full data for 542-544 London St apartments

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

Side by side

How 542-544 London St compares to the neighborhood

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

Loading comparables…
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.

Search another address Get full report
Simple pricing

Get the complete picture

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

Pay once

Report Bundle

For the buildings you're deciding on right now

$10one time

3premium reports

$3.33 per report · charged once, never renews

Each credit unlocks one building's premium report for 30 days.

  • 3 premium reports — AI executive summary included
  • Live data across all 27 public record types
  • 200 records per dataset
  • PDF & Excel exports included
  • Compare up to 10 buildings side-by-side
  • Credits never expire until you use them
Buy 3 Reports — $10
Pay once

Apartment Hunter

For a wide search across many buildings

$39one time

30premium reports

$1.30 per report · charged once, never renews

Each credit unlocks one building's premium report for 30 days.

  • 30 premium reports — AI executive summary included
  • Live data across all 27 public record types
  • 200 records per dataset
  • PDF & Excel exports included
  • Compare up to 10 buildings side-by-side
  • Credits never expire until you use them
Buy 30 Reports — $39
Most Popular Current plan
Subscription

Renter

For the weeks when the stakes are highest

$8.33/mo

5premium reports / mo

Billed $100/year — save $44 vs monthly

Renews automatically until you cancel.

  • Unlimited standard reports — 50 records per dataset
  • 5 premium AI reports per month — live data, 200 records per dataset, all 27 record types
  • PDF & Excel exports on every report
  • Compare up to 10 buildings side-by-side
  • Full event timeline — every year of history
  • Landlord portfolio & ownership insights
Start Your Search

Less than $0.28/day. Cancel anytime.

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

Watch 542-544 London St
Get alerted the moment a new violation or complaint is filed.