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425 Lyon St

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

A handful of records on file over the last seven years, and our model puts this building at a low risk of further maintenance problems in the next 12 months. A few records worth reading before you sign. Check whether they were closed out, and ask what was actually fixed.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in North Panhandle — not a forecast
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.

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 1900
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
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).

Mailing address
429 Lyon St San Francisco CA 94117
Last sale
—

Landlord portfolio

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

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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

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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

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
55thpercentile

Out of 797 buildings in this neighborhood, 359 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
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 risk forecast
Low failure risk 23%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

425 Lyon St apartment reviews

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On the map

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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.
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See all 6 events

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

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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.

Side by side

How 425 Lyon St compares to the neighborhood

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