4136 N Mammoth Ave
This building has significantly more problems than most nearby buildings. 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 Sherman Oaks average of 0.0.
What's in the 4136 N Mammoth Ave report
| Units | 2 |
|---|---|
| Zoning | LAR1 |
| Year built | 1925 |
| Total area | 2,076 sq ft |
| Use code | 200 |
| APN (Assessor's Parcel Number) | 2266020021 |
Registered owner per LA County Assessor records.
Landlord portfolio
Other LA County properties this owner holds, with risk grades for each.
Unlock complete reportThe two-unit property at 4136 N Mammoth Ave in Sherman Oaks, built in 1925, has had a documented history spanning over a decade, with the most recent available data extending into 2026. The building, currently owned by Pablo and Estela Herrera Trust, has experienced a notable pattern of waste management issues, particularly in 2024 and 2025, with multiple requests for item pickups, bulky items, and appliance removals. Most of these service requests were successfully closed, except for one cancellation in March 2024. The property's historical records indicate a concerning pattern of storage issues, with a 2013 code enforcement case regarding excessive junk storage on the property, though this was resolved within two months. The building's safety record shows minimal inspections, with only one building safety inspection recorded in the past seven years, and no major safety incidents or violations noted in the available data. The property has generated 21 MyLA311 service requests in the past seven years, though many of these appear to be routine service requests rather than urgent safety concerns.
AI-generated · may contain errors · check the source data tables below
How 4136 N Mammoth Ave'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 1159 buildings in this neighborhood, 950 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.
4136 N Mammoth Ave apartment reviews
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4136 N Mammoth Ave event timeline
Code enforcement cases, building & safety requests, foreclosure registrations, permits, and MyLA311 calls — most recent records in order.
See all 7 events
Full history back to 0013 — violations, complaints, permits, and 311 calls.
Unlock complete timelineFull data for 4136 N Mammoth Ave 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.
| Permit # | Type | Description | Submitted | Issued | Status | Valuation |
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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