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Find out if your property qualifies to Build
an Accessory Dwelling Unit (ADU).
Clients Testimonial
Rogelio Castaneda - North Hollywood, CA
"Working with Alonso and the Premier ADU team was an exceptional experience. I had a 2nd story, 950 sq. ft. Accessory Dwelling Unit (ADU) built on top of my existing garage, and Alonso guided me seamlessly through every step of the design, permits, and construction process. His expertise ensured that we met all regulations and achieved a smooth final certificate of occupancy. Not only am I thrilled with my new ADU, but the process was so enjoyable that we’ve developed a lasting friendship. I highly recommend Alonso and Premier ADU for anyone looking to build a high-quality, custom ADU."
Roberto - Mission Hills, CA
"Working with Alonso and the Premier ADU team was an exceptional experience. We built a beautiful 1,200 sq. ft. single-story Accessory Dwelling Unit (ADU) in Mission Hills, featuring 2 bedrooms, 2 bathrooms, a full kitchen, and vaulted ceilings. Alonso expertly guided us through every step of the design, permits, and construction process, ensuring compliance with all regulations and a smooth final certificate of occupancy. I am absolutely thrilled with the result, and the positive experience led to a lasting friendship. I highly recommend Alonso and Premier ADU to anyone seeking a top-quality, custom ADU."
Luis Javier - San Bernardino, CA
"Teaming up with Alonso and the Premier ADU crew was a fantastic experience. We transformed our 2-car garage into a cozy 420 sq. ft. Accessory Dwelling Unit (ADU) in San Bernardino, complete with 1 bedroom and 1 bathroom. Alonso expertly managed every aspect of the project—from the initial design and permit process to the final construction—ensuring everything met regulatory standards and culminating in a smooth final certificate of occupancy. The entire journey was so positive that I had to refer him to my family and friends. I highly recommend Alonso and Premier ADU to anyone looking to build a high-quality, custom ADU."
