Petite ADU for Mom in Chula Vista
Davidson Street, Chula Vista, CA 91910
Homeowner Story: Bring aging family closer
Other Features: Covered porch
Built for his mother to move into, this homeowner took advantage of his accessible back lot and opted to build a petite 500 sqft ADU in the space available. Minimal modifications were made to this open, comfortable floor plan, but utilities were upgraded to accommodate a pool installation in the future. This necessitated various reinforcements on the foundation.
Floor Plan:
1BR/1BA 29×17 Long
Community:
The Chula Vista ADU Guide
SnapADU is proud to have been selected by the City of Chula Vista through a competitive bid process to design the City’s pre-approved ADU plans. This experience has given our team a deep understanding of Chula Vista’s ADU regulations, permitting requirements, and development standards. Learn more about pre-approved ADU plans.
One of the biggest changes in recent years occurred in 2025 when the City repealed its local ADU ordinance and shifted to relying primarily on California’s state ADU regulations. While this simplified some aspects of ADU development, homeowners should still understand the local permitting requirements and site-specific considerations that can impact their project.
We’ve worked on a variety of ADU projects throughout Chula Vista, including homes for aging parents, rental units, standard & custom ADUs.
Chula Vista ADU Permitting
One of the more unique local requirements is the City’s approach to soils reports. Chula Vista generally requires soils reports for ADU projects, although some one-story detached ADUs may qualify for a waiver depending on site conditions and foundation design. Two-story projects may also qualify for a waiver if specific foundation requirements are met.
Permit fees are generally moderate for smaller ADUs, though projects larger than 750 square feet should anticipate higher permitting costs. Generally expect permit fees to range from $3-5/sqft under 750 sqft, or closer to $20/sqft for projects over 750 sqft.
Portions of Chula Vista are located within the Coastal Zone and may be subject to the Bayfront Local Coastal Program. Depending on the property’s location, additional coastal review requirements may apply.
