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4127-4129 Kirkham St

Outer Sunset, SF 94122 1891049 2 units · 2 fl · 2007

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 Outer Sunset
At or below average
avg 1.8
1
FewerMore

This building has 1 novs (7y), at or below the Outer Sunset average of 1.8.

Rent & eviction protection

Is 4127-4129 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 2007
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RH1
Not rent-controlled. Buildings constructed after 1978 are generally exempt from SF rent increase limits under the Costa-Hawkins Act.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors2
Year built2007
Total area2,606 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1891049
Ownership

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

Owner name
Hsieh Yun Chin & Sandra Koo
Mailing address
551 39th Ave San Francisco CA 94121
Last sale
082814

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.

4127 Kirkham St, San Francisco, CA 94122
4129 Kirkham St, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 4127-4129 Kirkham Street, a two-unit multi-family residential building constructed in 2007, has experienced several significant events throughout its history, with the most recent being completed siding repairs and window replacement work in April 2023 costing $15,000. The building has faced multiple compliance issues and complaints related to unauthorized modifications, including a 2019 incident involving an unpermitted shed in the rear yard that led to a Notice of Violation (NOV). This shed was subsequently legalized in 2020 through proper permitting. Between 2009 and 2011, there were several complaints regarding potential unlawful unit conversions and unauthorized modifications, though these issues were eventually resolved.

More recent concerns include two notable incidents in late 2024: a sewage backup discharge from the side sewer vent in November and a tree-related issue reported in December 2024. The building has also been the subject of multiple parking-related complaints in the surrounding area between November and December 2024. During its early years, the property faced some fire safety violations in 2007 related to combustible materials and poor housekeeping, though these were addressed and closed. The building's ownership is listed as Hsieh Yun Chin & Sandra Koo, and it has maintained its designation as a two-unit structure since its 2007 verification. A tenant buyout record from January 2019 shows an amount of $51,604 paid to two tenants at a nearby address (1542 46th Avenue), though this is separate from the Kirkham Street property.

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

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Risk rating

How 4127-4129 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
75th percentile

Out of 632 buildings in this neighborhood, 158 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
87%
No DBI
violation
13%
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.

DBI tenant complaints (past 7 years)

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

Neighborhood location

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

Neighborhood location

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

12-Month severity forecast
No violation 79.4%
Moderate concern 15.1%
Severe concern 5.5%
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

4127-4129 Kirkham St event timeline

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

2023
Building Permit Apr 04
Homeowners repairs for siding (around window and sliding door) at rear side of property and replacement of a window and a around window and sliding door.
$15,000 · 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 4127-4129 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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