Homeowners get permits faster for a house’s vertical or horizontal expansion

[Felicia Nitu]

In Long Beach, homeowners can expand vertically (adding stories) or horizontally (extending the footprint) and get permits faster under SB-423 if they add 2 or more units. This law streamlines approvals, reducing delays for multi-unit developments.

Why Expansion Matters
Adding units through vertical or horizontal expansion maximizes property value and rental potential without requiring a lot split. Homeowners in urban areas with limited space benefit from building upward, while those with larger lots can extend outward to create additional units.

// Faster Review Process
· Local agencies must process qualifying projects within a set timeframe. (60-180 days depending on the total number of units)
· Projects adding 2 or more units face fewer delays compared to standard home expansions.

// Multi-Family Zoning Advantage
· Homes in multi-family zones gain automatic eligibility for faster permitting.
· Single-family zoned properties may require additional approvals before qualifying.

// Environmental and Safety Considerations
· Projects must comply with local safety and environmental regulations.
· Expansions in areas vulnerable to sea-level rise, flood zones, earthquake-prone areas, or fire hazard zones may still face restrictions.