Free SF apartment background check

3539 24Th St

Noe Valley, SF 94110 6513027 3 units · 2 fl · 1900

This building has significantly more problems than most nearby buildings. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Noe Valley
Above average
avg 1.2
14
FewerMore

This building has 14 novs (7y), above the Noe Valley average of 1.2.

Rent & eviction protection

Is 3539 24Th 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 1900
2 or more units
3 units
Property type
Multi-Family Residential
Zoning
RH3
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
Units3
Floors2
Year built1900
Total area2,010 sq ft
Property typeMulti-Family Residential
Tax statusHome Owners
Blocklot6513027
Ownership

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

Owner name
Lee Aizhu
Mailing address
3539 24th St San Francisco CA 94110
Last sale
050500

Landlord portfolio

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

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Augrented Insights
Initial analysis

The two-story multi-family residential building at 3539 24th Street in Noe Valley, owned by Lee Aizhu, was constructed in 1900 and contains three units. The property has experienced several significant maintenance and safety issues in recent years, with the most serious occurring in 2015-2016 when it underwent electrical repairs due to water damage and fire repairs that included debris removal, insulation, drywall work, and ceiling joist replacement costing over $17,000. In October 2018, multiple housing code violations were documented, including issues with kitchen cabinets, window sashes, electrical outlets, floor coverings, a broken window pane, lock problems, lighting, fire extinguishers, and interior painting requirements. These violations were referenced in subsequent complaints between 2019-2021, indicating ongoing maintenance challenges. More recent tenant complaints in 2021 reported rodent infestation, mold, leaking plumbing, and maintenance response issues affecting living conditions.

The building's permit history shows attention to repair work, including exterior repainting, stair repairs, and historical violations being addressed in 1986. The electrical systems have received some modernization, with 200-amp underground conversion completed in 2004, though the presence of knob-and-tube wiring was still noted in 2016. Recent inspection and violation records indicate attempts to address various maintenance issues, but the history of complaints suggests recurring problems with the building's upkeep. The property has also been the subject of multiple 311 calls regarding various issues, including mold and mildew (2021), hazardous materials (2019), and various street cleaning needs. While some permits show completed repairs, the pattern of complaints and violations over recent years indicates ongoing challenges with building maintenance and resident living conditions.

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

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Risk rating

How 3539 24Th 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
11th percentile

Out of 1879 buildings in this neighborhood, 1672 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
49%
No DBI
violation
51%
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.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

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 15.3%
Moderate concern 40.5%
Severe concern 44.1%
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

3539 24Th St event timeline

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

2025
Building Permit Feb 06
Re-roofing. no hot works.
$29,890 · Complete

See all 12 events

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

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Every record we have

Full data for 3539 24Th 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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