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1921 Lake St

Lake Street, SF 94121 1380037 4 units · 2 fl · 1917

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 Lake Street — not a forecast
At or below average
avg 0.6
0
FewerMore

This building has 0 novs (7y), at or below the Lake Street average of 0.6.

Rent & eviction protection

Is 1921 Lake 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 1917
2 or more units
4 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 1917
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 built1917
Total area3,820 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1380037
Ownership

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

Mailing address
Lombardi Kenneth J & Jeanne 517 Chapman Dr Corte Madera CA 94925
Last sale
July 15, 2019

Landlord portfolio

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

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Augrented Insights
Initial analysis

Located at 1921 Lake Street in The Presidio/Lake neighborhood, this two-story, four-unit multi-family residential building was constructed in 1917 and is currently owned by Kenneth J. and Jeanne W. Lomb. The building has undergone several significant improvements and modifications over the past two decades, most notably the recent addition of an accessory dwelling unit (ADU) in 2020, completed in conjunction with seismic retrofits valued at $174,000. The property has received substantial infrastructure upgrades, including a complete electrical system overhaul in 2015 with new 200-amp service and five-meter panels, plumbing improvements such as sewer lateral replacement in 2018, and various unit renovations including bathroom and kitchen updates in multiple apartments between 2015-2019.

Historical records indicate that the building experienced several maintenance and safety compliance issues in the mid-2000s, including multiple fire safety violations in 2005-2007 related to smoke detectors, fire extinguishers, and egress obstructions, though all were subsequently resolved. There were also heating system problems, with complaints about no heat for extended periods in 2006-2011, and a boiler permit violation in 2016. Recent maintenance history suggests ongoing investment in building improvements, with no active violations or complaints on record since 2016. The property has generated periodic police and municipal service calls primarily related to street parking issues, with the most recent external incident recorded in 2024 regarding furniture debris on the property. The building's recent focus has been on unit upgrades and structural improvements, with no significant safety or habitability issues reported in the past several years.

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

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Risk rating

How 1921 Lake 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
69thpercentile

Out of 660 buildings in this neighborhood, 205 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
86%
No DBI
violation
14%
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 size

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

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 14%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1921 Lake St apartment reviews

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On the map

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The story over time

1921 Lake St event timeline

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

2026
Plumbing Permit Jun 17
Work category: 4pa; provide and install new fire sprinkler system throughout ground floor only per nfpa 13 and new underground fire service per nfpa 24
Issued
Plumbing PermitMay 14
Install gree 18t btu wall mounted heat pump system in adu.

See all 14 events

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

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Every record we have

Full data for 1921 Lake St apartments

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

Side by side

How 1921 Lake St compares to the neighborhood

This building against comparable properties in Lake Street. 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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