Free SF apartment background check

1945-1955 Lyon St

Pacific Heights, SF 94115 1007002 6 units · 3 fl · 1907

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

NOVs (7y) vs. neighborhood
Compared to a typical building in Pacific Heights
At or below average
avg 1.4
1
FewerMore

This building has 1 novs (7y), at or below the Pacific Heights average of 1.4.

Rent & eviction protection

Is 1945-1955 Lyon 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
6 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 1907
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
Units6
Floors3
Year built1907
Total area6,927 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1007002
Ownership

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

Mailing address
Bayer Carole Sole Member 3378 Washington St San Francisco CA 94118
Last sale
062600

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.

1955 Lyon St, San Francisco, CA 94115
1945 Lyon St, San Francisco, CA 94115
1949 Lyon St, San Francisco, CA 94115
1951 Lyon St, San Francisco, CA 94115
1953 Lyon St, San Francisco, CA 94115
1947 Lyon St, San Francisco, CA 94115
Augrented Insights
Initial analysis

The 1945-1955 Lyon Street property is a three-story, six-unit multi-family residential building located in Pacific Heights, constructed in 1907 and currently owned by 1945-1955 Lyon St LLC. The building recently suffered significant fire damage in April 2024, rendering it unsafe and uninhabitable, with extensive damage to the upper facade and roof. As of June 2024, permits have been issued for limited demolition to address safety concerns and additional re-roofing work, with the fire incident currently classified as an active violation. The building has undergone several important improvements over the years, including completion of mandatory seismic retrofit work in 2015 (compliance with 2012 IEBC Appendix A-4), and various unit renovations including kitchen and bathroom upgrades in 2005-2003. Historical maintenance records show attention to building safety features, though a routine inspection in 2017 identified issues with wood stairs that required repair.

The property has maintained compliance with soft-story requirements, achieving Tier 3 work complete status with CFC issuance. Various building complaints and routine inspections have been conducted over the years, revealing past safety and maintenance concerns including exterior peeling paint (2001), multiple violations in 2008 related to fire safety and security, and a 2017 issue with wood stairs. Recent municipal service calls primarily relate to exterior maintenance matters such as street and sidewalk issues, parking violations, and tree root damage to the sidewalk, with some cases still open as of late 2024. A proposed renovation project currently under consideration aims to expand unit sizes and improve amenities across all six units, including adding new bathrooms, kitchens, closets, and roof decks, though this is subject to the resolution of the current fire damage situation.

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 1945-1955 Lyon 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
13th percentile

Out of 963 buildings in this neighborhood, 838 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
36%
No DBI
violation
64%
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.

Building size

Total floor area — a proxy for building scale and the number of systems (plumbing, electrical, HVAC) that can fail.

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.

12-Month severity forecast
No violation 30.9%
Moderate concern 59.8%
Severe concern 9.3%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

1945-1955 Lyon 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.

The story over time

1945-1955 Lyon St event timeline

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

2026
Electrical Permit Jul 09
Survey permit to confirm location of meters. all 6 locations and 1 house meter. (survey for common area)
Issued
Planning RecordJun 12
Infill rear yard to raise grade, no (N) structures, (N) 50sqft side deck, (N) roof deck, set back 5' from side building edges and 10' from front building edge with 42'' cable guardrails within the buildable area, (N) 42'' fire-rated parapets at roof.

See all 22 events

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

Unlock complete timeline
Every record we have

Full data for 1945-1955 Lyon 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 1945-1955 Lyon St
Get alerted the moment a new violation or complaint is filed.