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ADU Floor Plans from 17 Real SoCal Builds

Every plan below was drawn, permitted, and built for a real Southern California homeowner — garage conversions and new-construction ADUs from 400 to 900 sq ft. Use them to see what actually fits on a typical lot, then get a plan drawn for yours.

Home/ADU Floor Plans

Real Permitted Plans — Not Stock Templates

These are working drawings from completed Vision ADU projects: 1 and 2 bedroom layouts, garage conversions, two-story units, and detached new construction. Only the city is published for each plan — never a homeowner's address.

Gun Ave New Construction ADU floor plan — Chino, CA, 586 sq ft, 2 bed 1 bath
New Construction

Gun Ave New Construction ADU

Chino, CA
586 sqft · 2 Bed · 1 Bath

Two bedrooms and a heat-pump water heater in under 600 sq ft.

2nd St Garage Conversion floor plan — Santa Ana, CA, 640 sq ft, 2 bed 1 bath
Conversion

2nd St Garage Conversion

Santa Ana, CA
640 sqft · 2 Bed · 1 Bath

Full two-bedroom layout carved out of an existing garage footprint.

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Anola St ADU Conversion floor plan — Whittier, CA, 650 sq ft, 2 bed 1 bath
Conversion

Anola St ADU Conversion

Whittier, CA
650 sqft · 2 Bed · 1 Bath

Conversion plus addition with a separate dining area and entry.

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E Broadway ADU floor plan — Anaheim, CA, 554 sq ft, 2 bed 1 bath
New Construction

E Broadway ADU

Anaheim, CA
554 sqft · 2 Bed · 1 Bath

Compact two-bedroom plan with a central living room and full kitchen.

E Broadway ADU (Unit B) floor plan — Anaheim, CA, 554 sq ft, 2 bed 1 bath
New Construction

E Broadway ADU (Unit B)

Anaheim, CA
554 sqft · 2 Bed · 1 Bath

Second unit on the same lot — proof you can double up on one property.

W Cris Ave ADU floor plan — Anaheim, CA, 550 sq ft, 2 bed 1 bath
New Construction

W Cris Ave ADU

Anaheim, CA
550 sqft · 2 Bed · 1 Bath

Vaulted living room, dedicated laundry room, and two bedrooms in 550 sq ft.

Wichshire Ave Garage Conversion floor plan — Hacienda Heights, CA, 598 sq ft, 1 bed 1 bath
Conversion

Wichshire Ave Garage Conversion

Hacienda Heights, CA
598 sqft · 1 Bed · 1 Bath

Bedroom plus a flexible office/second-bedroom with its own panel service.

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Wright Rd ADU floor plan — Lynwood, CA, 600 sq ft, 2 bed 1 bath
New Construction

Wright Rd ADU

Lynwood, CA
600 sqft · 2 Bed · 1 Bath

Vaulted ceilings throughout — two bedrooms that live larger than 600 sq ft.

N Huntington St ADU floor plan — San Fernando, CA, 494 sq ft, 2 bed 1 bath
New Construction

N Huntington St ADU

San Fernando, CA
494 sqft · 2 Bed · 1 Bath

Two true bedrooms in under 500 sq ft with a combined kitchen/dining.

El Segundo Blvd Garage Conversion floor plan — Hawthorne, CA, 500 sq ft, 1 bed 1 bath
Conversion

El Segundo Blvd Garage Conversion

Hawthorne, CA
500 sqft · 1 Bed · 1 Bath

LA County-approved conversion with attic access and in-unit laundry.

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E Vine Ave ADU floor plan — West Covina, CA, 400 sq ft, 1 bed 1 bath
New Construction

E Vine Ave ADU

West Covina, CA
400 sqft · 1 Bed · 1 Bath

Efficient 400 sq ft one-bedroom — includes the full electrical plan.

Gloria Ave ADU floor plan — North Hills, CA, 414 sq ft, 1 bed 1 bath
Conversion

Gloria Ave ADU

North Hills, CA
414 sqft · 1 Bed · 1 Bath

Garage-and-workshop conversion tucked behind the main house.

W 79th St New Construction ADU floor plan — Inglewood, CA, 600 sq ft, 2 bed 1 bath
New Construction

W 79th St New Construction ADU

Inglewood, CA
600 sqft · 2 Bed · 1 Bath

Two bedrooms, walk-in closet, and a raised planter entry in 600 sq ft.

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Lingan Ln Garage Conversion floor plan — Santa Ana, CA, 510 sq ft, 1 bed 1 bath
Conversion

Lingan Ln Garage Conversion

Santa Ana, CA
510 sqft · 1 Bed · 1 Bath

Compact one-bedroom with a combined kitchen-dining nook and in-unit laundry.

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Mines Ave Garage Conversion floor plan — Whittier, CA, 360 sq ft, 1 bed 1 bath
Conversion

Mines Ave Garage Conversion

Whittier, CA
360 sqft · 1 Bed · 1 Bath

Vaulted ceilings and a full kitchen in an alley-access 360 sq ft footprint.

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Quill Cir New Construction ADU floor plan — Huntington Beach, CA, 320 sq ft, 1 bed 1 bath
New Construction

Quill Cir New Construction ADU

Huntington Beach, CA
320 sqft · 1 Bed · 1 Bath

Fully self-contained 320 sq ft studio-style unit with in-unit laundry.

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Sundale Ave New Construction ADU floor plan — Hawthorne, CA, 600 sq ft, 2 bed 1 bath
New Construction

Sundale Ave New Construction ADU

Hawthorne, CA
600 sqft · 2 Bed · 1 Bath

Two bedrooms with closets each, plus a slab-on-grade private entry pad.

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