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1427 Larkin St

Nob Hill, SF 94109 0644006 9 units · 3 fl · 1917

Nothing on record for this building in the last seven years, but our model still flags a rising risk of maintenance problems in the next 12 months. That forecast comes from the owner's wider portfolio and the surrounding area, not from this building's own record — treat it as a reason to ask questions, not as evidence of a problem. 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 Nob Hill — not a forecast
At or below average
avg 2.4
0
FewerMore

This building has 0 novs (7y), at or below the Nob Hill average of 2.4.

The bar and the rating point different ways because they measure different things: the bar counts DBI violations already on file, the rating forecasts the next 12 months.

Rent & eviction protection

Is 1427 Larkin 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
9 units
Property type
Multi-Family Residential
Zoning
RM3
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
Units9
Floors3
Year built1917
Total area6,069 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot0644006
Ownership

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

Mailing address
Shaun Supanich, Trustee 1030 Masonic Ave Apt 4 San Francisco CA 94117
Last sale
February 24, 2004

Landlord portfolio

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

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Augrented Insights
Initial analysis

1427 Larkin Street is a 9-unit, 3-story multi-family residential building located in Nob Hill, owned by the Shaun Supanich Trust and constructed in 1917. The building has undergone significant renovations and safety upgrades in recent years, most notably following a substantial fire incident in December 2018 that caused considerable damage to multiple units (1-5 minor smoke and water damage; 6 total loss; 7-9 firefighting, water, and smoke damage). In 2019-2020, the property underwent comprehensive improvements including the installation of 61 sprinklers, complete fire alarm system upgrades, window replacements, and extensive remodeling of several units (2, 3, 6, 7) along with fire damage repairs. The electrical system was notably upgraded with a panel increase from 100 to 400 amps, and all units received new electrical work for bathrooms and kitchens.

The building's safety systems received particular attention, with multiple fire alarm system inspections and corrections between 2007 and 2022, though several fire-related incidents involving alarm systems and sprinklers were recorded. A significant modernization project in 2020 involved upgrading the fire alarm system to comply with current codes, including sprinkler monitoring. While the building achieved Soft-Story compliance as Tier 3 with work completed, there were historical violations related to fire escapes, smoke doors, and gas meter instructions from 2001-2005, all of which were addressed. The property has maintained active unit renovations, with the most recent work in 2023 involving kitchen cabinet installations in Unit 9, valued at $25,000.

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

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Risk rating

How 1427 Larkin 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
16thpercentile

Out of 1125 buildings in this neighborhood, 945 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
23%
No DBI
violation
77%
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 permits (past 7 years)

Number of permits pulled at this address — construction or renovation activity over 7 years.

12-Month risk forecast
High failure risk 77%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months. Model: full_hgb_balanced.
Apartment reviews

1427 Larkin St apartment reviews

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On the map

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The story over time

1427 Larkin St event timeline

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

2026
311 Request Jan 20
311 service request
Encampment

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 1427 Larkin St apartments

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

Side by side

How 1427 Larkin St compares to the neighborhood

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

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