Free SF apartment background check

3524 21St St

Eureka Valley/Dolores Heights, SF 94114 3606016 2 units · 2 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 Eureka Valley/Dolores Heights
At or below average
avg 1.3
0
FewerMore

This building has 0 novs (7y), at or below the Eureka Valley/Dolores Heights average of 1.3.

Rent & eviction protection

Is 3524 21St 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
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 built1900
Total area3,350 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot3606016
Ownership

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

Owner name
Leach Family Lp
Mailing address
C/o Joseph Gerard Leach 3528 21St St San Francisco CA 94114
Last sale
052504

Landlord portfolio

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

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Augrented Insights
Initial analysis

The property at 3524 21st Street is a two-unit, two-story multi-family residential building located in the Eureka Valley/Dolores Heights neighborhood. Built in 1900 and currently owned by Leach Family LP, this flats/duplex structure has undergone several significant maintenance and repair activities over the years. Most notably, in 2012-2013, the building faced multiple building code violations that were documented in December 2012 and resolved by March 2013, including issues with weatherproofing, inadequate handrails, window repairs, interior plaster damage, and concerns regarding lead-based paint. During this period, the property underwent reroofing work with a permit issued in December 2012, though there were multiple complaints in March 2013 about roofing work being conducted without proper permits. The building's electrical system received an upgrade in 2004 with a 200-amp PG&E underground installation.

More recent history shows limited but relevant activities, including a routine reroofing project in 2013 costing over $20,000, and some maintenance activities like window repairs and handrail installations. The building experienced some construction-related issues in January 2014, when complaints were filed about interior work and floor sanding without visible permits. The property's 311 call history shows typical neighborhood concerns, including an abandoned vehicle report in 2019, a noise complaint in 2018, and some street lighting issues in 2013 that were resolved promptly. Throughout its history, the building has maintained compliance with major building codes since the 2012-2013 violations were addressed, though the pattern of complaints and violations in late 2012 suggests there had been some deferred maintenance issues that required attention during that period. The property has undergone various routine maintenance and upgrading work over the years, with particular attention to roofing systems being a recurring focus.

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

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Risk rating

How 3524 21St 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
65th percentile

Out of 1278 buildings in this neighborhood, 447 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
82%
No DBI
violation
18%
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.

Neighborhood location

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

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 67.7%
Moderate concern 13.5%
Severe concern 18.8%
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

3524 21St 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 3524 21St 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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