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ADU · Santa Ana
Orange County, CaliforniaDetached ADU (Ground Up), Santa Ana
Detached ADU in Santa Ana
A ground-up detached ADU on a flat Santa Ana lot: new foundation, full utility runs, an open-plan living/kitchen core, and a pergola entry that gives the unit its own front-door presence. Designed, permitted, and built in-house by Avorino.
9 photographs · Avorino · Lic. #110753837 Orange County cities & communities · B-#1107538Scroll to explore ↓
Scope of work
What this build involved.
- New foundation + ground-up framing
- Independent utility runs (sewer, water, electrical)
- Open-plan living + white-shaker kitchen with quartz counters
- Full bath with walk-in shower
- Pergola entry + dedicated exterior approach
- Title 24 energy compliance, handled in-house
The finished build
Finish and structural detail (4)
Select any photograph to see it full screen.
Project record
Detached ADU in Santa Ana, by the numbers.
Permits & process
Santa Ana ADUs run through standard city plan check (typically 4–6+ weeks), with extra review layers only in the Downtown Specific Plan and historic districts. Avorino handled submittal, corrections, and inspections end-to-end.
The build
Ground-up detached units carry the full site-work load — trenching, foundation, and independent utilities — which is exactly where fixed-price design-build pays off: the number is set before ground breaks.
- Finished area (approx.)
- 800 sq ft
- Bedrooms (approx.)
- 2
- Bathrooms (approx.)
- 2
- Photographs in this set
- 9
- City
- Santa Ana, CA
- Builder
- Avorino · Lic. #1107538
- Typical budget
- $245K–$440K+ (detached ADU)
- Typical timeline
- 5–8+ months build, after design + permits
- Warranty
- 1-yr fit & finish · 4-yr systems · 10-yr structural
- Stories
- Single-story
- Build
- Ground-up · Flat lot
Sizes and room counts marked approx. are estimates from plans and photos.
On site
The build, stage by stage.
During construction — site progress photo
01The walled lot, cleared 02Footing forms and rebar set for the pour 03Ceiling insulated between the joists, rough-in runs in place 04Waterproofing going down on the subfloor
What clients say about this kind of build
“We had Avorino build us an ADU recently. They provided the full design and rendering, pulled permits, and built our 1,000 sqft ADU from start to finish. Easy to work with, prices very competitive. We've already recommended Avorino to friends.”
More work
Keep looking: the next project.
Next step
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AVORINO / SPATIAL STUDIESFIG. 01
Planning study · a conversation, not a committed designConcept only · cutaway walls lowered to reveal the layout
- 01Project
- 02Plans
- 03Context
- 04Contact