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1280-1282 4Th Ave

Inner Sunset, SF 94122 1752016 4 units · 3 fl · 1900

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 1280-1282 4Th Ave 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 1900
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.

Building characteristics
Units4
Floors3
Year built1900
Total area3,000 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot1752016
Ownership

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

Owner name
Kallenbach Rudolf Edward
Mailing address
1278 4th Ave Apt 3 San Francisco CA 94122
Last sale
041007

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.

1280 04th Ave, San Francisco, CA 94122
1282 04th Ave, San Francisco, CA 94122
Augrented Insights
Initial analysis

The property at 1280-1282 4th Avenue is a 3-story, 4-unit multi-family residential building located in the Inner Sunset neighborhood, built in 1900 and currently owned by Rudolf Edward Kallenbach. The building has undergone several significant improvements over the past decades, with the most recent major work occurring in 2009, which included the addition of a ground floor laundry room and important structural maintenance such as foundation repairs, installation of anchor bolts, and remediation of dry rot in sill plates and studs, all valued at $10,000. Prior to this, the building faced multiple violations in 2005 that were successfully abated by June 2005, including issues related to window frames, handrails, fire proofing, stairs, damaged walls, fire extinguishers, and garbage receptacle placement. These violations led to several corrective actions, including the installation of R13 insulation, renovation of the rear closet, and stair repairs.

The building's maintenance history shows attention to basic upkeep needs, such as deck repairs (2006), and roof replacements in both 1991 and 1992. More recent concerns have primarily involved external issues like sidewalk parking violations (most recently documented in December 2024), occasional noise complaints (with a current open noise issue from June 2024), and periodic sidewalk cleaning needs. A general complaint was transferred to the Department of Public Health in February 2020, though details on the outcome are not specified in the records. The property underwent a routine housing inspection in 2007 that remains active, and previous routine inspections have been successfully resolved. While the building has experienced various maintenance issues over time, the records indicate that most violations have been addressed appropriately, particularly the significant cluster of issues identified and resolved in 2005.

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

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Risk rating

How 1280-1282 4Th Ave'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
31th percentile

Out of 1493 buildings in this neighborhood, 1030 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
70%
No DBI
violation
30%
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.

Neighborhood (ZIP code)

The ZIP code captures local housing market and enforcement patterns that affect all buildings in the area.

Building age

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

12-Month severity forecast
No violation 39.8%
Moderate concern 16.5%
Severe concern 43.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
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The story over time

1280-1282 4Th Ave event timeline

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

No dated public records on file yet.
Every record we have

Full data for 1280-1282 4Th Ave apartments

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

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

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