A soft story building is a multi-story structure with a weaker first floor that has large openings like garages, tuck-under parking, or commercial storefronts. These open areas lack the same structural support as the upper floors, making them vulnerable during earthquakes.

In the event of an earthquake, the weak lower level can collapse under the weight of the floors above. Retrofitting strengthens the building’s foundation and framing to prevent collapse, protect lives, and reduce property damage.

Yes, in many areas such as Los Angeles, San Francisco, and other California cities, soft story retrofitting is required by law for certain buildings. Local ordinances typically apply to wood-frame buildings with three or more stories and multiple residential units built before the 1980s.

Retrofitting typically includes:

• Installing steel moment frames or shear walls

• Reinforcing foundations

• Strengthening existing support columns and beams
  The exact scope depends on the building’s structure and local requirements.

The construction process usually takes 4–12 weeks, depending on the building’s size and complexity. However, the entire process—from evaluation to permits and final inspection—can take several months.

Often, yes—especially if the work is focused on the ground level or parking areas. However, temporary parking restrictions or minor disruptions may occur. Communication with tenants is key.