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331-335 Willard St

Lone Mountain, SF 94118 1168005 4 units · 3 fl · 1910

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 Lone Mountain — not a forecast
At or below average
avg 0.9
0
FewerMore

This building has 0 novs (7y), at or below the Lone Mountain average of 0.9.

Rent & eviction protection

Is 331-335 Willard 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 1910
2 or more units
4 units
Property type
Multi-Family Residential
Zoning
RM1
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 1910
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
Floors3
Year built1910
Total area4,602 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1168005
Ownership

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

Mailing address
Wayne Y Lee & James Sue 331 N Willard St San Francisco CA 94118
Last sale

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

335 Willard St North, San Francisco, CA 94118
333 Willard St North, San Francisco, CA 94118
331 Willard St North, San Francisco, CA 94118
Augrented Insights
Initial analysis

The three-story, four-unit multi-family residential building at 331-335 Willard Street in the Lone Mountain neighborhood, owned by Wayne Y Lee & May S Chow 20, has undergone several significant improvements since its construction in 1910. Most notably, the building has completed mandatory seismic safety retrofit work as a designated Tier 3 soft-story building, installing blocking, shear walls, and anchors in the crawl space and basement at a cost of $30,000. Recent maintenance includes a completed reroofing project totaling $18,689 in March 2024. The building has experienced some safety-related incidents in the past, most notably in 2004 when a routine inspection revealed multiple fire safety concerns including issues with smoke detectors, emergency exits, and fire extinguisher maintenance - all of which were abated by May 21, 2004. A 2016 complaint regarding unauthorized construction of an oversized shed in the rear yard was filed but ultimately marked as not active.

The property has maintained compliance with major safety requirements since 2004, with no active building violations recorded in recent years. Infrastructure maintenance has been proactive, as evidenced by the recent reroofing project and completed soft-story retrofit. The building's plumbing systems received an upgrade with a gas houseline extension in 2007. Recent 311 calls primarily relate to external issues such as street cleaning, parking violations, and tree maintenance, with three sewer-related flooding incidents reported on the street in January 2021. While there are several open service requests from 2023-2024, these generally relate to street maintenance and parking rather than building-specific issues. The attempted legalization of an additional dwelling unit (UDU) on the ground floor in 2018 was cancelled, and a related planning application was withdrawn.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 331-335 Willard 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
34thpercentile

Out of 519 buildings in this neighborhood, 343 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
78%
No DBI
violation
22%
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.

Owner's portfolio size

Number of SF parcels this owner is registered on — larger portfolios have distinct risk patterns.

Building age

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

12-Month risk forecast
Low failure risk 22%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

331-335 Willard St apartment reviews

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On the map

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The story over time

331-335 Willard St event timeline

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

2024
Building Permit Mar 13
Reroofing
$18,689 · Complete

See all 4 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 331-335 Willard St apartments

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

Side by side

How 331-335 Willard St compares to the neighborhood

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

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

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