San Diego's Premier Design-Build Firm for Custom ADUs
Experience a seamless, single-source process — from architectural design and permitting to luxury construction. One team. One contract. No compromises.
200+
ADUs Built
15+
Years in Business
4.9★
Average Rating
1 Team
Design-Build, Start to Finish
Real Clients · Real Results
Real Clients. Real Builds.
Don't take our word for it — watch what San Diego homeowners say about working with IL Total Design.
Why Homeowners Choose IL Total
Generate Rental Income
ADUs in San Diego rent for $1,500–$3,000/mo. Many clients fully offset their mortgage payment.
Increase Home Value
ADUs add 20–30% to your property value — one of the highest ROI home improvements available.
House Family Nearby
Keep aging parents or adult children close while maintaining everyone's independence.
Fully Permitted
Every ADU we build is fully permitted and code-compliant. We pull every required permit.
True Design-Build — One Team, One Contract
Most ADU companies are either designers or builders. We're both. Our in-house architects, engineers, and construction crew work under one roof — no handoffs, no finger-pointing, no delays between phases.
No Contractor Coordination
Hiring separate architects, structural engineers, and general contractors means managing three timelines. With our design-build model, you get a single point of contact and one unified schedule.
One Team. Every Step.
Design-build means you hire us once and we handle the rest.
Free Property Consultation
We visit your property, assess your options, and give you a detailed written estimate — completely free. No separate architect consultation needed.
In-House Design & Engineering
Our architects and engineers design your ADU under one roof. Plans, structural calcs, and Title 24 energy compliance — all handled internally, not farmed out.
Permitting
We submit to the city, manage revisions, and handle every inspection. Because we designed it, we can resolve plan check comments fast — no waiting on a third-party architect.
Construction & Walkthrough
Our own crew builds your ADU with weekly photo updates. One team from first sketch to final walkthrough — no handoffs, no surprises.
Our Work
Recent ADU projects across San Diego County
Hear It Straight From Our Homeowners
The Halley Street Conversion — $220k Garage-to-ADU
"IL Total built our garage conversion in 8 weeks. It's now renting for $2,200/mo. Best investment we've ever made in our home."
Maria S.
Chula Vista, CA
The El Cajon Project — Fully Permitted Custom Build
"Professional from start to finish. They handled all the permits and kept us informed every single week. Zero surprises."
James K.
El Cajon, CA
The Escondido Suite — Multi-Generational Luxury ADU
"We built a detached unit for my mother-in-law. The quality is incredible and it actually came in under budget."
Priya & Tom R.
Escondido, CA
See Our ADU Builds in Action
Real projects. Real homeowners. Follow along on YouTube.
Ready to Begin Your Custom ADU Project?
One team from architectural design to final walkthrough. Schedule a private consultation with San Diego's premier design-build ADU firm.
Licensed · Insured · San Diego, CA