Free SF apartment background check

4126 26Th St

Noe Valley, SF 94131 6554007 2 units · 2 fl · 1910

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 Noe Valley
At or below average
avg 1.2
0
FewerMore

This building has 0 novs (7y), at or below the Noe Valley average of 1.2.

Rent & eviction protection

Is 4126 26Th 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 1910
2 or more units
2 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
Units2
Floors2
Year built1910
Total area1,794 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6554007
Ownership

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

Owner name
Yung Rene
Mailing address
4126 26th St San Francisco CA 94131
Last sale
000000

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-unit residential building at 4126 26th Street in Noe Valley is a two-story flats and duplex structure built in 1910, currently owned by Rene Yung. The building has experienced recurring maintenance issues, particularly with dry rot, as evidenced by repairs documented in 2013 (in the kitchen area around a skylight) and 2001 (at the northwest wall), suggesting ongoing attention to structural maintenance is required. Other significant maintenance work includes a gas line extension in 2014 and an electrical survey in 2003. Earlier modifications include a deck addition at the rear of the building permitted in 1985, though that permit has since expired.

Of particular note is the building's ongoing parking enforcement challenges, with multiple incidents of driveway blocking documented between 2018 and 2023. There have been at least ten reported cases of vehicles blocking the driveway, with eight resulting in citations or other enforcement action, though in several instances the responding officers were unable to locate the offending vehicles. While not directly related to the building's condition, this pattern of parking enforcement issues may impact resident convenience and access. The most recent building maintenance work on record was the 2013 roof repair and skylight replacement, completed at a cost of $4,000. The property's permit history suggests regular maintenance but also indicates some deferred work, as evidenced by the expired reroofing permit from 2000 and the expired deck addition permit from 1985.

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

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Risk rating

How 4126 26Th 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
54th percentile

Out of 1879 buildings in this neighborhood, 864 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
79%
No DBI
violation
21%
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.

Building permits, owner's portfolio

Permits pulled across all of this owner's buildings over 7 years.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

12-Month severity forecast
No violation 84.4%
Moderate concern 10.6%
Severe concern 5.0%
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

4126 26Th St 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 4126 26Th St 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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