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
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See the Los Angeles Municipal Code (L.A.M.C.), Section 91.106.2 for when a Building permit is required.
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See the Los Angeles Municipal Code (L.A.M.C.), Section 95.112.1 for when a Mechanical permit is required.
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See the Los Angeles Municipal Code (L.A.M.C.), Section 93.0201 for when an Electrical permit is required.
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See the Los Angeles Municipal Code (L.A.M.C.), Section 92.0129(b) for when an Elevator permit is required.
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No permit is required for a wood fence or wrought iron fence up to 10 feet.
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See the Los Angeles Municipal Code (L.A.M.C.), Section 94.103.1 for when a Plumbing permit is required.
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A LA Research Report is required for any structural items. Please see Information Bulletin P/BC 2014-119 to learn more.
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A geology report is needed for development within an Alquist-Priolo Earthquake Fault Zone or a Preliminary Fault Rupture Study Area or for new onsite wastewater treatment systems (OWTS).A combined report is needed for projects in a Hillside Grading Area or where bedrock is encountered in addition to the requirements for a soils report.
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A soils report is needed for construction on a slope steeper than 3:1 (Horizontal:Vertical), excavations removing lateral support, when a structure cannot be designed per building code values, and/or for structures which do not conform to chapter 18 of the 2014 LABC. Reports are also required for sites in seismic hazard zones that are not exempt under Information Bulletin P/BC 2014-044.
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Floor control valves and waterflow detection assemblies shall be installed at each floor where any of the following occur:
- Buildings where the floor level of the highest story is located more than 30 feet above the lowest level of fire department vehicle access
- Buildings that are four or more stories in height
- Buildings that are two or more stories below the highest level of fire department vehicle access
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