4.3 
328 *The Angi rating for Residential Design companies in Downey, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Residential Design needs.
*The HomeAdvisor rating for Residential Design companies in Downey, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Residential Design needs.
Last update on May 13, 2026
Serving Downey, CA and surrounding areas
Approved
In business since 1976
Warranties offered
Credit card accepted
"The work Erdelyi associates did is great, but communication and timeliness were lacking. I didn’t have a consistent point of contact throughout the project - it just seems my project was handed off from one person to the next with no continuity and I had to proactively reach out for updates."
Serving Downey, CA and surrounding areas
Approved
In business since 2007
Free estimates
Credit card accepted
"The landscape designer provided creative and practical ideas for our outdoor space. We are thrilled with the end result!"
Serving Downey, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2007
Free estimates
Emergency services offered
"From start to finish, very professional and detailed. I love the outcome and would choose this company again and again! The result was better than I could have hoped for. 10/10 recommend!"
+34
Serving Downey, CA and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"I hired Kyle as my structural engineer for my ADU. Long story short, my original architect ghosted me, and left an incomplete plan and about two months before application expires. I had to change my design a bit and Kyle was so kind. He helped me finished my revision over a weekend even though he had a lot of work at hand after he leaned my situation. And the city revision only cost him a day. With his help I was able to pull my permit two days before the deadline! Excellent work Kyle! Much appreciated!"
Serving Downey, CA and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: True professional
"Our kitchen remodel with McCormick Home Builders went beyond our expectations. Leoni and her team took the time to understand exactly what we wanted. The open layout design changed the way we use the space, and it’s been perfect for family gatherings. They were prompt, courteous, and genuinely invested in making sure we were happy. Really impressed!"
+1
Serving Downey, CA and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"All work has been really great."
Serving Downey, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2017
Free estimates
Credit card accepted
"Hired Pacific Sands after we lost our home in the Eaton Fires in Altadena. We were very happy with their team and the designs they finished for us. Their permitting team was amazing too, so happy they were able to help with that part of the process. too."
Serving Downey, CA and surrounding areas
Approved
"She listen to my wants and advised me and showed me options when I wasn’t sure what I wanted which helped me decide what would look better She listened to my desires, provided guidance, and presented me with options when I was uncertain about my preferences. Her assistance helped me make a more informed decision."
+2
Serving Downey, CA and surrounding areas
Approved
In business since 2003
Free estimates
Small jobs welcome
"Good project management with Ellise"
+13
Serving Downey, CA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Very quick and easy to work with. The drawings and the design for our project was perfect! Thank you!"
+23
From average costs to expert advice, get all the answers you need to get your job done.
Find out how much an architect costs in Los Angeles, CA. Learn what you can expect to pay for local architectural design services and start your project today.
Find out the average blueprints cost in Los Angeles, CA. Learn what you can expect to pay for local architectural plans and get your project started.
Find out the average draftsperson cost in Los Angeles, CA. Learn what you can expect to pay for local architectural blueprints and get your project started.
What type of building handles most of its own heating and cooling? Take a look at how passive design lowers carbon footprint while increasing comfort.
The first step towards a remodel—whether it’s the kitchen, bathroom, or basement—is a consultation. Here’s what to expect during a home remodel consultation.
A cottage is a popular home style that has been around for centuries and is going through a resurgence. But what is a cottage? Find out in this complete guide.
