ADUs + Additions
Design thoughtful new spaces that work naturally with your existing property.
- Detached and attached ADUs
- Garage conversions
- Additions and guest houses
- Layout planning and exterior design
Residential Design + Planning · Los Angeles
We turn ideas into thoughtful spaces, from ADUs and additions to floor plans, kitchens, bathrooms and complete residential design.

Sound familiar?
Three ways we help homeowners. Most projects touch more than one.
Design thoughtful new spaces that work naturally with your existing property.
See it before you build it. We turn your ideas and your existing home into a clear design direction.
Remodels designed down to the cabinet, the tile and the light over the sink.
Six steps, one team coordinating them. Join at the step you need.
Start your projectWe learn your goals, budget and timeline, then document the existing home or property.
You get existing-condition plans and a clear brief.
Two or three layout directions that balance space, light, flow and cost.
You react to real options instead of a blank page.
Floor plans, elevations, 3D renderings, materials and finishes come together.
You understand the layout and finishes before construction begins.
Drawings coordinated with engineers and other licensed professionals where required.
You get a complete, coordinated drawing set.
We help prepare submittals and respond to plan check comments for projects that need permits.
Fewer surprises between design and approval.
Budget review, value engineering and coordination with your contractor.
You start construction with clear drawings and a realistic number.
You don't need to know exactly what you want. We take your ideas from a rough sketch to a plan, then to a 3D view you can walk through before anything is built.


Concept imagery. Steps 1 and 2 show the same design; step 3 shows a finished space in the same style.
A beautiful plan that can't be built on budget isn't a plan. We design with construction in mind from the first sketch, so what you approve is what you can actually build.
Start your projectWe review cost as the design develops, not after the drawings are done.
Clear plans and finish selections mean fewer surprises in contractor bids.
We find savings in structure, systems and materials before anything goes to bid.
Hire us for the whole path, or for the part you need.
Start your project
A few quick questions about your home and your ideas. We'll recommend where to start.
Don't see yours? Schedule a consultation and ask us directly.
No. Many clients start with a feeling that the house isn't working, a few inspiration photos, or a single problem to solve. Developing the idea with you is part of the work.
No. Casa Forma is a residential design and planning studio, not a licensed architecture firm. When a project legally requires a licensed architect, engineer or contractor, we coordinate with appropriately licensed professionals and make clear who is responsible for what.
Yes. We often design and prepare plans for homeowners who already have a contractor, or who want design help before they choose one. Clear drawings make bids easier to compare.
Yes. You can hire us for a single piece, like a floor plan, a 3D rendering or finish selections, or for the full path from first idea to construction.
For projects that need them, we prepare and coordinate permit drawings with the required licensed professionals and help manage plan check. Many interior remodels need simpler permits, and some need none.
Los Angeles and surrounding communities. Ask us if you're unsure whether we cover your area.
It depends on scope. After a first conversation we send a clear proposal with a fixed fee or defined phases, so you know what each stage costs before we start.
A 30-minute call about your home, your goals and your budget. No obligation.