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421-423 Kirkham St

Inner Sunset, SF 94122 1854036 2 units · 2 fl · 1908

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Sunset
At or below average
avg 1.1
0
FewerMore

This building has 0 novs (7y), at or below the Inner Sunset average of 1.1.

Rent & eviction protection

Is 421-423 Kirkham 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
2 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.

Building characteristics
Units2
Floors2
Year built1908
Total area2,000 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1854036
Ownership

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

Owner name
Chin Family Trust
Mailing address
Winston & Busabon Bessie Ch 12345 Barley Hill Rd Los Altos CA 94024
Last sale
000000

Landlord portfolio

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

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Multiple entrances & addresses

Included addresses

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

423 Kirkham St, San Francisco, CA 94122
421 Kirkham St, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 421-423 Kirkham Street in San Francisco's Inner Sunset neighborhood is a two-unit, two-story multi-family residential building constructed in 1908, currently owned by the Chin Family Trust. The building has undergone several significant improvements over the past two decades, with the most recent major work being a roof replacement in 2009 costing $8,000. In 2003, a substantial renovation was completed that included kitchen remodeling, bathroom updates, and electrical work involving the installation of 10 lights and 11 plugs, with this work properly documented and marked as complete. Earlier maintenance attempts included a 2002 project to repair partial siding on the side and rear of the house, though this permit ultimately expired without completion.

The neighborhood surrounding the property has experienced recurring issues with abandoned vehicles and illegal parking, particularly between 2019 and 2022, with multiple reports to the Department of Parking and Traffic (DPT) and Parking Enforcement. While these incidents were consistently investigated and resolved, most vehicles were either towed (in one case for expired registration) or left voluntarily after investigation. Other neighborhood concerns have been minimal, including a flickering streetlight issue in 2012 that was promptly resolved with bulb replacement by PG&E. The building's maintenance record shows regular upkeep of major systems, though the expired siding repair permit from 2002 raises some historical concern about the condition of that particular building feature.

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

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Risk rating

How 421-423 Kirkham 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

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
84th percentile

Out of 1493 buildings in this neighborhood, 239 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
89%
No DBI
violation
11%
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.

Building age

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

Neighborhood location

Precise location is a proxy for neighborhood-level risk — some SF blocks have systematically higher DBI activity.

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 severity forecast
No violation 86.5%
Moderate concern 10.4%
Severe concern 3.1%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

421-423 Kirkham St event timeline

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

2026
311 Request Jun 14
Garbage and debris
other loose garbage debris yard waste

See all 1 events

Full history back to 2026 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 421-423 Kirkham St apartments

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

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