Free SF apartment background check

425 Lyon St

North Panhandle, SF 94117 1198002 4 units · 2 fl · 1900

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 North Panhandle
At or below average
avg 1.7
1
FewerMore

This building has 1 novs (7y), at or below the North Panhandle average of 1.7.

Rent & eviction protection

Is 425 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 1900
2 or more units
4 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
Units4
Floors2
Year built1900
Total area4,350 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1198002
Ownership

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

Owner name
Mt Hermon Missionary Bapt C
Mailing address
429 Lyon St San Francisco CA 94117
Last sale
000000

Landlord portfolio

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

Unlock complete report
Augrented Insights
Initial analysis

The property at 425 Lyon Street is a 4-unit, 2-story multi-family residential building constructed in 1900, currently owned by Mt Hermon Missionary Baptist Church. The building has experienced several significant maintenance and safety issues over the past decade, with the most serious concerns emerging between 2014-2019, including multiple violations related to rodent infestation, unauthorized combustible storage, and a dilapidated rear structure that was deemed uninhabitable in 2015. Numerous building violations were filed in 2016 and earlier in 2014, though all were officially abated by July 2019. The building underwent substantial renovation work in 2006, costing $175,000, which included remodeling bathrooms and kitchen, replacing windows and doors, and other improvements. Additional repairs have been documented through various permits, including electrical rewiring in 2005, bathroom/kitchen renovations, and structural repairs to address dry rot in 2017.

Recent activity around the property (January 2025) has primarily involved multiple reports of encampments and street cleaning issues, though these appear to be related to the property's vicinity rather than the building itself. There are also historical complaints from 2012 regarding unauthorized construction work and concerns about the conversion of the building from two to six bedrooms without proper permits, which were addressed at the time. The property had its only reported tenant buyout in November 2016, involving a payment of $24,500 to one tenant at the adjacent address (421 Lyon Street). While many past violations have been resolved, the building's history shows a pattern of maintenance issues and regulatory compliance challenges, particularly regarding the rear structure and unauthorized modifications.

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 425 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
55th percentile

Out of 797 buildings in this neighborhood, 359 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
77%
No DBI
violation
23%
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 age

Older buildings tend to have more maintenance challenges; SF's pre-1906 earthquake housing stock carries distinct risk.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 52.4%
Moderate concern 19.3%
Severe concern 28.4%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

425 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.

Buildings nearby
Loading…
The story over time

425 Lyon St event timeline

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

2026
Planning Record Apr 05
The property owner at 425 Lyon is filing a permit to demolish a historic structure at the rear of the property at 425 Lyon St. The structure has deteriorated because of the lack of maintenance and upkeep by property owner. This structure had previously (although many years back) accommodated at lease two units of housing. See 1990 Sanborn map that shows "D" for Dwelling units in this structure.
Open

See all 6 events

Full history back to 2025 — violations, complaints, permits, buyouts, and fire incidents.

Unlock complete timeline
Every record we have

Full data for 425 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 425 Lyon St
Get alerted the moment a new violation or complaint is filed.