Los Angeles

Wood-Frame Soft-Story Structures

The city of Los Angeles Ordinance #183893 is effective as of November 22, 2015. The Los Angeles wood-frame soft-story ordinance can be found here: Article 1, Division 93: Mandatory Earthquake Hazard Reduction in Existing Wood-Frame Buildings with Soft, Weak, or Open Front Walls.


Los Angeles’ mandatory wood-frame soft-story program applies to existing buildings that have the following characteristics:

  • Wood-frame construction
  • Construction permit was applied for prior to January 1, 1978
  • Four or more dwelling units
  • Ground floor containing parking or similar open floor or basement space causing soft, weak, or open lines where there exists at least one or more levels above

Building officials have identified approximately 13,500 buildings in the city of Los Angeles that fall within the scope of this ordinance. As of April 2016, the preliminary inventory of wood-frame soft-story apartments (download the list) and condominiums (download the list) has been made public by the Los Angeles Department of Building and Safety (LADBS).


The city of Los Angeles requires that wood-frame soft-story building retrofits adhere to the timeline shown below. It is expected that notices to building owners will be delivered within the first 1.5 years following the ordinance’s approval in November 2015. The notice is intended to provide a description of the ordinance and additional guidance. Following delivery of notices, an official order to comply is issued to owners of buildings that fall within the scope of the ordinance. Once the order to comply has been received, the subsequent deadlines are initiated. It is important to note that notices and orders will be delivered in phases according to the priority level of the structure.

BEGIN PROCESS Order to comply received by building owner

Submit one of the following:
1. Proof that structure meets ordinance requirements OR
2. Plans for retrofit OR
3. Plans for demolition


Obtain one of the following:
1. Permit for rehabilitation OR 
2. Permit for demolition


Complete one of the following:
1. Construction/retrofit OR
2. Demolition


City of Los Angeles Priority Designations

The Los Angeles wood-frame soft-story ordinance will be carried out in phases. The timeline for compliance for each unique structure begins following service distribution of the order from the LADBS. Orders will be issued according to the priority levels outlined below.

Priority I

Buildings with 16 or more dwelling units

Priority II

Buildings with three or more stories with fewer than 16 dwelling units

Priority III

Buildings with fewer than three stories and fewer than 16 dwelling units


In the News

LA Times Soft-Story Buildings Map and Searchable Inventory

LA City Council Approves Seismic Retrofitting Measure (NBC)

Los Angeles City Council Approves Major Earthquake Retrofitting Ordinance (National Law Review)

Los Angeles Passes Nation’s Strictest Seismic Retrofit Ordinance (ASCE)

Los Angeles Will Have the Nation’s Toughest Earthquake Safety Rules (LA Times)

Mayor Garcetti Signs Historic Earthquake Retrofit Measure into Law

Infographic: Look at How Apartments Can Collapse During an Earthquake (LA Times)



Wiss, Janney, Elstner Associates, Inc.
Phone: 626.696.4650
E-mail: seismicordinances@wje.com

LADBS Soft-Story Retrofit Unit
201 N. Figueroa Street, Suite 890, Los Angeles, CA 90012
Phone: 213.202.9924
E-mail: Soft-storyretrofit@lacity.org