21621 W Dupont St
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.
This building has 0 code enforcement cases (7y), at or below the Chatsworth average of 0.1.
What's in the 21621 W Dupont St report
| Units | 2 |
|---|---|
| Zoning | LAR2 |
| Year built | 1955 |
| Total area | 1,368 sq ft |
| Use code | 200 |
| APN (Assessor's Parcel Number) | 2747012008 |
Registered owner per LA County Assessor records.
Landlord portfolio
Other LA County properties this owner holds, with risk grades for each.
Unlock complete reportIs 21621 W Dupont St rent-stabilized?
The Los Angeles Rent Stabilization Ordinance (RSO) caps annual rent increases and requires a legal reason to evict for most rental units first built on or before October 1, 1978. Here's how this building scores on the signals that usually point to coverage.
Based on LA County Assessor records. Coverage also extends to condos, townhomes, duplexes, and units attached to commercial buildings. Not legal advice — confirm with the LA Housing Department.
California Tenant Protection Act of 2019
Even when a building isn't covered by local rent stabilization, the statewide Tenant Protection Act (AB 1482) may still apply. It caps annual rent increases and requires the landlord to state a legal reason to end most tenancies.
AB 1482 does not apply to single-family homes and condos unless owned by a corporation, REIT, or an LLC with a corporate member; to owner-occupied duplexes; or to deed-restricted affordable housing. The Act is in effect until January 1, 2030. Not legal advice — see the California landlord–tenant guide.
The two-unit residential building at 21621 W Dupont St in Chatsworth, owned by John and Catherine Dietzen, has been in operation since 1955. Over the past seven years, the property has undergone 17 building safety inspections and generated 45 service requests through the MyLA311 system, indicating regular interaction with municipal services. The most recent cluster of service requests in early 2025 suggests heightened activity around this property, with three separate bulky item removal requests between January and March 2025, followed by a metal/household appliance pickup request in March. A notable illegal dumping incident required municipal intervention in August 2024. The property appears to have generated more waste or required more municipal services than typical for a small residential building, though all recorded service requests have been promptly closed. While the volume of service requests may indicate some maintenance or waste management challenges, it's important to note that not all service requests necessarily reflect building problems, as many were related to proper disposal of items rather than safety or structural concerns.
AI-generated · may contain errors · check the source data tables below
How 21621 W Dupont St's risk score is calculated
We trained a model on 7 years of LA County code enforcement data — code enforcement cases, building & safety requests, foreclosure registrations, and owner track records. It estimates the probability that LA County will open a code enforcement case at this address in the next 12 months. Lower % = safer.
What the score means for you
Grade A–B — Low risk
LA County rarely opens code cases 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. LA County has opened cases here before and is statistically likely to again.
Out of 92 buildings in this neighborhood, 45 are predicted to be safer.
case
likely
What's driving this score
The data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.
21621 W Dupont St apartment reviews
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21621 W Dupont St event timeline
Code enforcement cases, building & safety requests, foreclosure registrations, permits, and MyLA311 calls — most recent records in order.
See all 5 events
Full history back to 2025 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 21621 W Dupont St apartments
LA County public datasets for this parcel — code enforcement cases, permits, MyLA311 calls, building & safety requests, and foreclosure registrations.
What this is
Open and recently generated code enforcement cases filed by LA County/LADBS against this property.
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What this is
Code enforcement cases at this property that have been resolved and closed — the historical enforcement record.
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What this is
Building permits issued by LA County for new construction, alterations, and repairs at this parcel.
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What this is
Electrical permits issued for this parcel — rewiring, panel upgrades, EV chargers, solar tie-ins.
| Permit # | Type | Description | Issued | Status |
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What this is
Mechanical permits submitted for this parcel — HVAC, plumbing, and other mechanical systems work.
| Permit # | Type | Description | Issued | Status |
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What this is
MyLA311 service requests recorded at this parcel — maintenance complaints and quality-of-life requests.
| SR # | Created | Closed | Type | Status |
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What this is
Closed customer service requests filed with LA County Building & Safety about this property.
| CSR # | Received | Closed | Problem | Priority | Response Days |
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What this is
Open customer service requests filed with LA County Building & Safety about this property.
| CSR # | Received | Due | Problem | Priority |
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Cancel anytime · Data sourced from LA County Code Enforcement, MyLA311, LA County Assessor & LA County Public Works