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21 Lyell St

Bernal Heights, SF 94112 6753046 3 units · 2 fl · 1908

This building has a substantial enforcement record over the last seven years, and our model sees a moderate chance of more in the next 12 months. Read the records below before you sign. Ask which issues were resolved, get repair commitments in writing, and inspect the unit yourself.

NOVs (7y) vs. neighborhood
Records already on file, against a typical building in Bernal Heights — not a forecast
Above average
avg 1.2
6
FewerMore

This building has 6 novs (7y), above the Bernal Heights average of 1.2.

Rent & eviction protection

Is 21 Lyell 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 1908
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH1
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 1908
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
Units3
Floors2
Year built1908
Total area2,100 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6753046
Ownership

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

Owner name
Mailing address
21 Lyell St San Francisco CA 94112
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 two-story multi-family residential building at 21 Lyell Street in Bernal Heights, owned by Ikuko Roth, was constructed in 1908 and contains three units. The property has undergone various maintenance and improvement works over the decades, including reroofing in 1996, several renovations in the mid-1980s, and most recently, sewer house trap work completed in August 2023. The building has faced several significant health and safety issues, most notably in late 2022 when multiple violations were recorded relating to lead-based paint, general paint conditions, and weather-proofing concerns, though these were abated by December 2022. A more recent plumbing issue was documented in July 2023 regarding a broken/defective sewer house trap that created health and sanitary concerns, though this situation was subsequently addressed.

The building's history includes several concerning habitation issues, particularly during the late 1990s, with multiple complaints regarding electrical systems, safety concerns, and potentially unauthorized alterations, including reports of lighting issues, electrical problems, and questionable modifications. More recent complaints from 2020 documented water damage, mold issues, and infrastructure concerns. A fire safety violation was recorded in January 2013 regarding blocked exits, though this was promptly corrected. The most recent permit activity shows attention to both roofing and plumbing infrastructure, suggesting ongoing maintenance of the building's essential systems. The property has experienced some external issues as evidenced by multiple 311 calls in early 2025 regarding garbage, debris, and street conditions, though these appear to be related to street cleaning rather than building-specific problems.

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

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Risk rating

How 21 Lyell 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
8thpercentile

Out of 1276 buildings in this neighborhood, 1174 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
44%
No DBI
violation
56%
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.

NOV rate, owner's portfolio

Per-building NOV rate across everything this owner manages — high rates signal pattern neglect.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

12-Month risk forecast
Moderate failure risk 56%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

21 Lyell St apartment reviews

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On the map

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The story over time

21 Lyell St event timeline

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

2025
311 Request Dec 10
Garbage and debris
other bagged boxed contained garbage
311 RequestOct 06
Pavement defect

See all 16 events

Full history back to 2020 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 21 Lyell St apartments

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

Side by side

How 21 Lyell St compares to the neighborhood

This building against comparable properties in Bernal Heights. 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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