Free SF apartment background check

3640 26Th St

Noe Valley, SF 94110 6532017 5 units · 3 fl · 1964

This building has significantly more problems than most nearby buildings. 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
Above average
avg 1.2
7
FewerMore

This building has 7 novs (7y), above the Noe Valley average of 1.2.

Rent & eviction protection

Is 3640 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 1964
2 or more units
5 units
Property type
Multi-Family Residential
Zoning
RM1
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
Units5
Floors3
Year built1964
Total area4,480 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot6532017
Ownership

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

Owner name
Aanka Llc
Mailing address
1228 Sandra Dr San Jose CA 95125
Last sale
022221

Landlord portfolio

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

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Augrented Insights
Initial analysis

Located in San Francisco's Noe Valley neighborhood, 3640 26th Street is a 5-unit, 3-story multi-family residential building constructed in 1964, currently owned by Aanka LLC. The property has undergone several significant renovations and improvements over the past few years, with the most substantial work occurring between 2019-2021, including a comprehensive building-wide electrical system upgrade, plumbing improvements, and unit remodels. In 2020, the building completed mandatory soft-story seismic retrofitting ($70,000) and fire system upgrades ($9,000). The building's five units have received extensive renovations, including kitchen and bathroom remodels, bedroom additions, and laundry facilities installation. The property has seen some tenant turnover, with documented buyouts ranging from $22,107.82 to $142,548.95 between 2018-2019, affecting at least 5 tenants in total.

The building has experienced several maintenance and compliance issues, particularly in 2018-2019, when multiple violations were documented regarding smoke detection systems, water damage, heating systems, and plumbing issues, all of which were subsequently addressed and abated. Recent building permits in 2022-2023 suggest continued minor modifications, with structural revisions being the primary focus. Two construction-related noise complaints were filed in early 2020, though these were ultimately resolved. The property's exterior areas have required attention to garbage management and landscaping, with multiple 311 calls about debris, tree maintenance, and parking violations between 2020-2024. As of October 2023, all major building systems have been upgraded or replaced, with evidence of ongoing maintenance and compliance with current safety standards, though a sidewalk defect reported in May 2020 remains listed as open.

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

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Risk rating

How 3640 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
15th percentile

Out of 1879 buildings in this neighborhood, 1597 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
53%
No DBI
violation
47%
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.

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.

12-Month severity forecast
No violation 37.9%
Moderate concern 35.5%
Severe concern 26.7%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

3640 26Th St apartment reviews

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The story over time

3640 26Th St event timeline

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

2026
Building Violation (NOV) Jun 16 Serious
Building violation
It is the property owners responsibility to be present or direct his/her representative to attend the re-inspection as scheduled on this no…
Building Violation (NOV)Jun 16
Building violation

See all 21 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3640 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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