Unlock the Potential of Your
Property with an ADU
From start to finish, we build beautiful, code-compliant ADUs for rental income, family needs, or flexible living.
- Permit‑Ready Plans
- Title 24 Energy Calc's
- Structural Coordination
- Fixed‑Fee Packages
Unlock the Potential of Your Property with an ADU
From start to finish, we build beautiful, code-compliant ADUs for rental income, family needs, or flexible living.
- Permit‑Ready Plans
- Title 24 Energy Calc's
- Structural Coordination
- Fixed‑Fee Packages
ADU Services We Offer
We streamline the path from idea to approval with a single, coordinated team.
Custom ADU Design
Personalized architectural designs that reflect your specific vision and needs.
Feasibility & Site Planning
Helps you understand what can be built on your property by reviewing zoning, setbacks, and site conditions.
3D Renderings
Experience your design’s scale, materials, and interiors before construction to make informed choices.
Permit & Plan Check
Complete submittal set and responses until your permit is issued.
Structural Coordination
Coordinate with Engineering, Title 24, and Surveyor.
Construction Visits
Ongoing site visits to confirm the project is being constructed as designed.
ADU Services We Offer
We streamline the path from idea to approval with a single, coordinated team.
Custom Design
Personalized architectural designs that reflect your specific vision and needs.
Feasibility & Site Planning
Helps you understand what can be built on your property by reviewing zoning, setbacks, and site conditions.
3D Renderings
Experience your design’s scale, materials, and interiors before construction to make informed choices.
Permit & Plan Check
Complete submittal set and responses until your permit is issued.
Structural Coordination
Coordinate with Engineering, Title 24, and Surveyor.
Construction Visits
Ongoing site visits to confirm the project is being constructed as designed.
A Clear Six‑Step Process
From start to finish, your permitting process made simple.
1. Discovery Call
Goals, budget, timeline, and a quick look at zoning and utilities.
2. Site Measure & As‑Builts
We document existing conditions for accurate planning and engineering.
3. Concept Design
Layout options, massing studies, and preliminary finishes for feedback.
4. Permit Set
Code‑compliant plans with energy/Title 24 and engineering packages.
5. Plan‑Check & Revisions
We manage comments and update drawings until approval.
6. Begin Construction
On‑call clarifications; optional site visits to keep construction aligned.
A Clear Six‑Step Process
From start to finish, your permitting process made simple.
1. Discovery Call
Goals, budget, timeline, and a quick look at zoning and utilities.
2. Site Measure & As‑Builts
We document existing conditions for accurate planning and engineering.
3. Concept Design
Layout options, massing studies, and preliminary finishes for feedback.
4. Permit Set
Code‑compliant plans with energy/Title 24 and engineering packages.
5. Plan‑Check & Revisions
We manage comments and update drawings until approval.
6. Begin Construction
On‑call clarifications; optional site visits to keep construction aligned.
Check out some of our Pre Approved Plans
To help envision the possibilities of your future ADU
What Clients Are Saying
Homeowners trust us for clear communication, smart design, and on‑time permits.
EXCELLENT Based on 11 reviews Posted on Google Karl FergusonTrustindex verifies that the original source of the review is Google. I just finished my ADU project with I Arch Studio, and honestly, they did an amazing job! They really took the time to understand what I wanted, helped me deal with all the permit stuff, and designed a space that looks great and feels super functional. Totally recommend them to anyone thinking about building an ADU!Posted on Google Levon PogosianTrustindex verifies that the original source of the review is Google. I recently worked with the I Arch Studio to design my ADU, and the experience was fantastic. They listened carefully to my needs, guided me through permits, and created a layout that feels both spacious and practical. The final result is beautiful, efficient, and blends perfectly with my property. Highly recommend!Posted on Google Peter AvetisyanTrustindex verifies that the original source of the review is Google. Highly recommend they are professional and get everything done fast and easy. I Arch Studios You guys are the best thank you.Posted on Google Dikran ParsekyanTrustindex verifies that the original source of the review is Google. Peter and Todd do real quality work at a great value. They are responsive, patient, and work with you from start to finish. I am onto my second project with them after a successful initial project just wrapped up. Highly recommend them!Posted on Google Revival OasisTrustindex verifies that the original source of the review is Google. The ADU experts!!! They got my plans approved in 3 months 5 stars for Todd and PeterPosted on Google HAKOP AVETISYANTrustindex verifies that the original source of the review is Google. Peter and Todd are the dream team. I needed a few service lifts installed in my shop and they were able to handle everything related to permitting for me. They're quick, knowledgeable and super responsive. My permits were granted on the initial submission.Posted on Google Edward AvetsianTrustindex verifies that the original source of the review is Google. The team at i Arch is really top-notch. Excellent communication, quick turnaround and great work. I have zero regrets with my choice.Posted on Google VaheTrustindex verifies that the original source of the review is Google. Having a goal to build your own home the way you’ve visioned is fun but when the project isn’t to start right away finding the answers are difficult. Thanks to Todd and Peter I’m now more confident about what it’ll take to prepare for my project. They’ve been helpful and will definitely work with them to accomplish my work. Highly recommended!Posted on Google minas badalyanTrustindex verifies that the original source of the review is Google. I called and spoke to Todd, they answered all my questions regarding my ADU in Glendale and gave me a reasonable quote compared to all the other architectural firms. Excited to start with them very soon! Call them for all your ADU needs they'll take care of you.Posted on Google Kristina ArtizTrustindex verifies that the original source of the review is Google. Working with I Arch Studios for our home addition project was stress-free and enjoyable. They were attentive to our wishes and made sure the permitting process was hassle-free. We're delighted with the outcomes and can't wait to move on to the construction phase!
ADU FAQs
Straight answers to common questions about cost, timing, and approvals.
Typical timelines are 3–4 month for design and permitting (varies by city workload)
Yes. We prepare the full submittal set (plans, energy/Title 24, structural engineering) and handle plan‑check responses until permit issuance.
Popular options include 400–500 sq ft studios, 600–750 sq ft 1‑beds, and 800–1,200 sq ft 2‑beds).
Absolutely. We include concept visuals and optional immersive walkthroughs to help you make fast, confident decisions.
Get a Free ADU Consultation
Tell us about your property and goals. We’ll review zoning, timelines, and budget ranges on a short call.
✔ 48‑hour proposal turnaround
✔ Fixed‑fee design packages
✔ Permit submittal included
✔ LA City expertise