Large ADU Plans (1,000+ Square Feet, California)
These ADUs maximize the 1,200 sq ft statewide ceiling for detached units. The extra space supports a second bedroom, larger living area, and dedicated laundry — without crossing into the more expensive multi-family permit category.
Showing 10 plans from the ADU plan catalog.
A12-1067
1,067 sqft•2 bed / 2 bath•1 storyFrom $250
A12-1084
1,084 sqft•2 bed / 2 bath•1 storyFrom $250
A12-1100
1,100 sqft•2 bed / 1.5 bath•1 storyFrom $250
A12-1133
1,133 sqft•2 bed / 1 bath•1 storyFrom $250
A12-1200
1,200 sqft•2 bed / 2.5 bath•1 storyFrom $250
A21-1017
1,017 sqft•1 bed / 1.5 bath•2 storiesFrom $250
A22-1084
1,084 sqft•2 bed / 1.5 bath•2 storiesFrom $250
A22-1158
1,158 sqft•2 bed / 1.5 bath•2 storiesFrom $250
A22-1199
1,199 sqft•2 bed / 2 bath•2 storiesFrom $250
A22-1200
1,200 sqft•2 bed / 2 bath•2 storiesFrom $250