Building Research Section (BRS)
The BRS approves alternate building materials or products that are at least equivalent to the materials prescribed in the code in terms of quality, effective time period of fire resistance, strength, effectiveness, durability and safety.
Additional Information
Approved materials are published as Los Angeles Research Reports (LARR).
The Building Research Section is located at our Metro location (201 N Figueroa St, Rm 880, Los Angeles, CA 90012)
LA Research Reports (LARR)
LADBS approves alternate building materials or products that are at least equivalent to the materials prescribed in the code in terms of quality, effective time period of fire resistance, strength, effectiveness, durability and safety.
Approved materials are published as Los Angeles Research Reports (LARR).
Additional Resources
- FAQ
- Applications
- Publications
FAQ Search Results
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Plan check is when your building plans are reviewed to make sure they comply with basic safety, engineering and planning rules. LADBS plan check engineers will review the design of such things as the structure, plumbing and electrical systems to make sure they are safe and properly designed. They will also look at other items, like building setbacks, heights and lot coverage to see that the construction is compatible with the neighborhood.
Plan check is part of the permit process. If your project disqualifies you from directly receiving an Express Permit, you will need to have a plan check. If it's a small project, a Counter Plan Check will suffice. If it's a large project, you might need to have a Regular Plan Check, where your plans are submitted and reviewed over the period of several weeks.
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A prevailing setback is a calculation used to determine minimum distance construction can be from the front property line, essentially a front yard measurement. An online Yard Setback Information File is provided to assist in determining this complex calculation.
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A Range File is a Code Enforcement Violation.
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A soft-story building is a structure which has a weaker first floor and is unable to carry the weight of the stories above during an earthquake. The first floor generally would have large openings in the perimeter walls such as garages, tuck under parking or even large windows.
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A soft-story building is a structure which has a weaker first floor and is unable to carry the weight of the stories above during an earthquake. The first floor generally would have large openings in the perimeter walls such as garages, tuck under parking or even large windows.
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UL Standard is an Underwriters Laboratories standard used as the basis of evaluation and testing of equipment.
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Turning space shall be a circular space of 60” diameter, or a T-shaped space with a 60” length for arms width, and a base that is 36” wide. See 11B-304.3.2.
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Also known as an Online Permit or Express Permit, e-permit is a service we provide to expedite less complex permit types.
Obtain permits on our website through Online Services or see a list of available online permits on our Express Permit page.
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ePlanLA, short for Electronic Plan Review Los Angeles, is an online service for submitting plans for plan check, applying for permits, and tracking the progress of these applications. Plans submitted must be scaled pdf drawings. Plan review and correspondence will be done through the online service.
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"Extra Inspection Trip Payment" is an online service offered by LADBS to provide its customers the capability to pay extra inspection trip fees via the e-Permit system, when an inspection is scheduled but cannot be performed due to customer error.
Customers can pay for "Extra Inspection Trip" fees through Online Services.
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