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The Franklin — A 1,200 sqft family home — California's maximum-size ADU.
Custom Design by CALI ADU

The Franklin

A 1,200 sqft family home — California's maximum-size ADU.

1,200
sqft
3
Bedrooms
2
Bathrooms
Detached ADU
Type
Visualize My ADU
The project

Design story

The biggest ADU you can build in California. A true family-ready home with a 14-foot vaulted great room, a real kitchen with island, dedicated laundry, and indoor-outdoor flow designed for full-time living.

Our client needed a three-bedroom, two-bathroom home large enough for a family of four — without leaving their existing property. We designed a 1,200-square-foot ADU that pushes California's size limit while delivering the volume, storage, and livability of a traditional single-family home. The 14-foot vaulted great room, kitchen island, and private patio make the Franklin feel far larger than its footprint.

Custom Design

This is a one-of-one.

The Franklin was designed for a specific client, lot, and vision. It is not available as a transparently priced Signature Home.

Want something like this? CALI ADU has designed 126+ custom ADUs across Los Angeles. Custom projects run 20–30% above a comparable Signature Home.

Learn About Custom ADUs Or browse Signature Homes from $7,490 →
Floor plan

1,200 sqft — 3 Bed / 2 Bath

The Franklin floor plan — 1200 sqft
126+
ADUs designed since 2017
28
Projects built end-to-end
9
Signature Home models
50 mi
Service radius from West LA
Signature Homes

Want a transparent estimate?
Signature Homes. Ready to build.

Every Signature Home is a fixed-price, permit-ready plan set — architectural design and permit processing included. Construction is yours to arrange: build it yourself, bring your own licensed contractor, or use one of our vetted construction partners.

The Wilshire — Studio living, done right.

The Wilshire

Studio·1 bath·400 sqft
Plans$7,490Est. Cost to Build · $180K–$200K
The Sunset — A true one-bedroom ADU.

The Sunset

1 bed·1 bath·480 sqft
Plans$7,490Est. Cost to Build · $200K–$215K
The Westwood — One bedroom. Room to breathe.

The Westwood

1 bed·1 bath·550 sqft
Plans$8,990Est. Cost to Build · $215K–$235K
The Laurel Canyon — Two bedrooms. Single story.

The Laurel Canyon

2 bed·1 bath·660 sqft
Plans$8,990Est. Cost to Build · $240K–$265K
The Melrose — Two bedrooms, two baths, single level.

The Melrose

2 bed·2 bath·800 sqft
Plans$8,990Est. Cost to Build · $275K–$295K
The Lincoln — Three bedrooms. All on one level.

The Lincoln

3 bed·2 bath·1,000 sqft
Plans$12,990Est. Cost to Build · $325K–$350K
Browse the Signature Homes

Single-story from $7,490 · Two-story from $12,990 · Transparent pricing, every time.

Ready when you are

See what fits in your backyard.

Book a free 15-minute Backyard Review — we'll show you which Signature Home or custom design works best for your lot, your goals, and your budget.

Visualize My ADU Or call (213) 423-0470

Free · 15 minutes · No obligation

The CALI ADU permit guarantee

Approved, or every dollar of your plan fee back.

California ADU review is ministerial: a plan that meets state and local standards must be approved. Our plans are engineered to those standards, which is why we can put money behind the outcome.

Money-back permit guarantee
Once our feasibility study says we can permit your ADU, if your city refuses to issue the permit, you get every dollar of your plan fee back.
Unlimited corrections, one fixed fee
If your city comes back with plan-check corrections, we handle every round of revisions and resubmittals at no added fee until the plan is approved.
14-day submission on Signature plans
Choose a Signature Home with no design changes and your plan set is completed and submitted to the city within 14 days. City review itself typically takes 6–8 weeks.

126 Los Angeles ADU projects taken through permitting. Zero denied.

Visualize My ADU Full terms on the pricing page →