Permitting Process Guide

To achieve compliance with the Mandatory Retrofit Ordinance 183893 and 184081, Soft-Story property owners are required to hire or contract a State of California licensed engineer, like American Retrofitters, who will prepare technical documents such as structural analysis and structural plans to show compliance with the retrofit ordinance. These technical documents will need to be submitted to the City of Los Angeles Department of Building and Safety (LADBS) for review.

Once the technical documents are reviewed and compliance with the Mandatory Retrofit Ordinance is confirmed by plan check staff, a building permit will be issued. Once a building permit is issued, construction can begin.

Upon completion of construction and if final inspection is approved, a Certificate of Compliance will be issued to the property owner.

The technical documents that must be submitted to the LABDS include, but are not limited to:

  • Structural Plans, showing all pertinent areas of alteration including the existing foundation plan, the proposed foundation plan, the existing 1st floor framing plan, the proposed 1st floor framing plan with seismic strengthening system, and the structural framing and connection details;
  • Grading Plans, if grading is proposed (i.e. removal and recompaction);
  • Structural Calculations, showing the structural analysis and design to add new seismic strengthening system(s) or to keep the current existing condition as is;
  • Material specifications (Los Angeles Research Reports/ICC ESR); and
  • Copy(s) of permit(s) for previous retrofit work, if applicable.

Structural plans for an existing condition must show the following:

  • Existing diaphragm;
  • Sheer walls and sheathing type;
  • Framing materials;
  • Fastener type and spacing;
  • Diaphragm and shear wall connections;
  • Continuity ties and collector elements; and
  • Portion of the existing materials that needs verification during construction.

Whereas structural plans for new construction require:

  • The foundation plan
    • Size, type, location, and spacing of all anchor bolts with the required depth of embedment, edge, and end distance;
    • Location and size of all columns for braced moments frames;
    • Referenced details for the connection of braced or moment frames to their footing; and
    • Referenced sections for any grade beams and footings.
  • The framing plan
    • Length, location, and material of shear walls;
    • Width, location, and material of frames;
    • Reference detail callouts for the column to beam connections;
    • Beam to wall connections and shear transfers at floor and roof diaphragms; and
    • Required nailing and length for wall top plates splices.
  • The details
    • Shear wall schedule and referenced on the plans with capacity in pounds per foot with the following:
      • Required fastener type, length, gauge, and head size;
      • Complete specifications for the sheathing material, and its thickness;
      • Required location of 3-inch (76 mm) nominal or two 2-inch (51 mm) nominal edge members;
      • Required flush nailing at the plywood surface;
      • Limits of mechanical penetrations showing the maximum notching and drilled hole sizes;
      • Sill plate material with the detailed limits of mechanical penetrations; and
      • Required hold-down with its bolt, screw, or nail sizes.
    • Lumbar size, grade, and species of the attached framing member to the strengthening system;
    • Steel moment frame (include LADBS “Steel Moment Frame Quality Assurances” standard plans); and
    • Material specifications.
  • The grading plans
    • Pad elevations and ground slope drainage pattern;
    • Topographical plans (with 5′-0″ contours);
    • Retaining walls and drainage systems; and
    • Shoring details, if required.
By | 2018-02-07T23:38:34+00:00 February 7th, 2018|City of Los Angeles|