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Last update on December 25, 2025
Find Architects in Altadena

A.Design
A.Design
A.Design is a forward-thinking architecture firm led by Andi and Anila, bringing their expertise in both architecture and design to create exceptional residential and commercial projects in Los Angeles and its surrounding areas. Their dedication to innovation, sustainability, and client satisfaction makes them a sought-after firm in the region. A.period is a licensed architecture firm in California, with Andi at the helm as a fully accredited and experienced architect. Andi's California architect license ensures that the firm complies with all relevant regulations and building codes, guaranteeing clients the highest quality and safety in their projects. Anila, on the other hand, holds a background in architecture and a keen eye for design, making her the perfect creative force alongside Andi. The firm has an impressive portfolio of residential projects, ranging from single-family homes to multi-unit developments, whether it's contemporary, traditional, or a fusion of styles.
"I really enjoyed working with Anila and her team on my home remodel. She was very detail-oriented and very hardworking. She made the whole experience feel less hard and more enjoyable. I would definitely recommend working with A.Design and Architecture. "
Antonio K on March 2025
A.Design is a forward-thinking architecture firm led by Andi and Anila, bringing their expertise in both architecture and design to create exceptional residential and commercial projects in Los Angeles and its surrounding areas. Their dedication to innovation, sustainability, and client satisfaction makes them a sought-after firm in the region. A.period is a licensed architecture firm in California, with Andi at the helm as a fully accredited and experienced architect. Andi's California architect license ensures that the firm complies with all relevant regulations and building codes, guaranteeing clients the highest quality and safety in their projects. Anila, on the other hand, holds a background in architecture and a keen eye for design, making her the perfect creative force alongside Andi. The firm has an impressive portfolio of residential projects, ranging from single-family homes to multi-unit developments, whether it's contemporary, traditional, or a fusion of styles.
"I really enjoyed working with Anila and her team on my home remodel. She was very detail-oriented and very hardworking. She made the whole experience feel less hard and more enjoyable. I would definitely recommend working with A.Design and Architecture. "
Antonio K on March 2025

ESL Designs
ESL Designs
15 years of experience in the industry and with the right mixture of name brand products, excellent workmanship, and superior customer service is what allows us to provide our customers with the second-to-none ESL DESIGNS they deserve. ESL DESIGNS’s mission is to lead the residential home improvement industry by providing our customers with superior ESL DESIGNS work, top-notch workmanship, and excellent customer service – all at affordable prices!
"This project is on-going."
Dennis V on October 2022
15 years of experience in the industry and with the right mixture of name brand products, excellent workmanship, and superior customer service is what allows us to provide our customers with the second-to-none ESL DESIGNS they deserve. ESL DESIGNS’s mission is to lead the residential home improvement industry by providing our customers with superior ESL DESIGNS work, top-notch workmanship, and excellent customer service – all at affordable prices!
"This project is on-going."
Dennis V on October 2022

N & NC Designs
N & NC Designs
N&NC Designs is an Architectural Design firm Los Angeles. We take pride our ability to exceed expectations all aspects of business, which puts us among the top firms in Los Angeles. We specialize in Ground Up Homes, Building Additions, Home Remodels, Kitchen Design, Multi-Family Multi-Story Units, and Commercial Tenant Improvements.
"At this time (still early), Nathan has been responsive to all architectural suggestions and ideas we’ve provided. Am looking forward to detail work."
Gabriel L on October 2020
N&NC Designs is an Architectural Design firm Los Angeles. We take pride our ability to exceed expectations all aspects of business, which puts us among the top firms in Los Angeles. We specialize in Ground Up Homes, Building Additions, Home Remodels, Kitchen Design, Multi-Family Multi-Story Units, and Commercial Tenant Improvements.
"At this time (still early), Nathan has been responsive to all architectural suggestions and ideas we’ve provided. Am looking forward to detail work."
Gabriel L on October 2020

PETER T ERDELYI & ASSOCIATES INC
PETER T ERDELYI & ASSOCIATES INC
Whether you're upgrading an existing structure or building from the ground up, Peter T. Erdelyi & Associates, Inc has the expertise to oversee your project through completion. We have designed more than 10,000 structures in the Los Angeles area over the past four decades; from apartment buildings to new single family homes to additions and remodels both for residential and commercial clients. Our team of professional engineers, drafters, expeditors and project staff will deliver plans that withstand the test of time.
"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."
Stefan W on September 2022
Whether you're upgrading an existing structure or building from the ground up, Peter T. Erdelyi & Associates, Inc has the expertise to oversee your project through completion. We have designed more than 10,000 structures in the Los Angeles area over the past four decades; from apartment buildings to new single family homes to additions and remodels both for residential and commercial clients. Our team of professional engineers, drafters, expeditors and project staff will deliver plans that withstand the test of time.
"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."
Stefan W on September 2022

Leslie Andersen Consulting
Leslie Andersen Consulting
Leslie Andersen Consulting specializes in comprehensive architectural design and permitting services for residential construction, including ADUs (Accessory Dwelling Units), remodels, and home additions. With over 30 years of professional construction experience, we offer a free feasibility outline to assess your project's potential, using publicly available data to provide a picture of what's possible. Whether you're planning a budget-conscious upgrade or a major renovation, we focus on enhancing your home's livability and value. Our expertise extends to building customized teams to suit your project's specific needs, optimizing costs, and ensuring smooth project execution. We have established strong relationships with trusted builders, structural engineers, and energy consultants, and are equally comfortable working alongside your preferred professionals. As the Founder and President of Leslie Andersen Consulting, I am dedicated to delivering high-quality design and permitting solutions that turn your residential construction visions into reality.
"I really appreciate Arch. Leslie Anderson taking the time to analyze the work my internet provider was planning to do and for offering your insights—all without charging for the consult. It was very kind of you! Thankfully, a tech from the new provider came by today and confirmed that the wire can actually be installed internally, so no need to run it along the exterior walls or bury it in the stucco channel. I also understand now that nothing should be buried in the stucco channel. Thanks again for your time and expertise!"
maritza d on February 2025
Leslie Andersen Consulting specializes in comprehensive architectural design and permitting services for residential construction, including ADUs (Accessory Dwelling Units), remodels, and home additions. With over 30 years of professional construction experience, we offer a free feasibility outline to assess your project's potential, using publicly available data to provide a picture of what's possible. Whether you're planning a budget-conscious upgrade or a major renovation, we focus on enhancing your home's livability and value. Our expertise extends to building customized teams to suit your project's specific needs, optimizing costs, and ensuring smooth project execution. We have established strong relationships with trusted builders, structural engineers, and energy consultants, and are equally comfortable working alongside your preferred professionals. As the Founder and President of Leslie Andersen Consulting, I am dedicated to delivering high-quality design and permitting solutions that turn your residential construction visions into reality.
"I really appreciate Arch. Leslie Anderson taking the time to analyze the work my internet provider was planning to do and for offering your insights—all without charging for the consult. It was very kind of you! Thankfully, a tech from the new provider came by today and confirmed that the wire can actually be installed internally, so no need to run it along the exterior walls or bury it in the stucco channel. I also understand now that nothing should be buried in the stucco channel. Thanks again for your time and expertise!"
maritza d on February 2025

Uni Construction
Uni Construction
ADU design and construction specialist. ADU | Complete design from concept to city permit | Structural design and engineering with license engineer stamp | Mechanical, Electrical, and Plumbing design and engineering with license engineer stamp | High resolution rendering | Drafting service | Design service for home owners, other design companies, and contractors.
"honest, fast and reliable stronly recommend"
sung k on September 2020
ADU design and construction specialist. ADU | Complete design from concept to city permit | Structural design and engineering with license engineer stamp | Mechanical, Electrical, and Plumbing design and engineering with license engineer stamp | High resolution rendering | Drafting service | Design service for home owners, other design companies, and contractors.
"honest, fast and reliable stronly recommend"
sung k on September 2020

WILLIAM FISHER ARCHITECTURE INC.
WILLIAM FISHER ARCHITECTURE INC.
With 60 years experience, we create buildings of all types throughout California and the West. Although we specialize in new mid-century modern homes and businesses, we can work in any style. We have an office space in both Santa Cruz and Los Angeles. Please VISIT OUR WEB SITE at www.modern-architecture.com or CALL BILL at 831-246-0117.
"They were so helpful, knowledgeable, and accommodating. I made the process so much more enjoyable. And I look forward to working with them on future projects."
Laurel B on May 2020
With 60 years experience, we create buildings of all types throughout California and the West. Although we specialize in new mid-century modern homes and businesses, we can work in any style. We have an office space in both Santa Cruz and Los Angeles. Please VISIT OUR WEB SITE at www.modern-architecture.com or CALL BILL at 831-246-0117.
"They were so helpful, knowledgeable, and accommodating. I made the process so much more enjoyable. And I look forward to working with them on future projects."
Laurel B on May 2020

Pac Sands Corp
Pac Sands Corp
We specialize in home designs, structural engineering, and architectural plans for new homes and ADUs, and helping customers get building permits fast. We've been licensed professional engineers in California for over 20 years. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!
"Muy buen servicio y excelente compania "
Ernesto M on August 2025
We specialize in home designs, structural engineering, and architectural plans for new homes and ADUs, and helping customers get building permits fast. We've been licensed professional engineers in California for over 20 years. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!
"Muy buen servicio y excelente compania "
Ernesto M on August 2025

Toro Noir Designs
Toro Noir Designs
With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.
"After reaching out to several others on Angiâ s list, they never respond or did not return your call. Christian was very professional, answered all my questions, was on time and presented us with an efficient blueprint. If youâ re looking for someone to take care of business give him a call. Toro Noir Designs."
Olivia B on November 2023
With several years of experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.
"After reaching out to several others on Angiâ s list, they never respond or did not return your call. Christian was very professional, answered all my questions, was on time and presented us with an efficient blueprint. If youâ re looking for someone to take care of business give him a call. Toro Noir Designs."
Olivia B on November 2023
Sturgill Associates, Inc.
Sturgill Associates, Inc.
Sturgill Associates Architects is a client-oriented architectural firm, providing a full spectrum of design services including new custom designs, additions, alterations, remodels and tenant improvements for commercial and residential properties. We maintain a close relationship with our clients throughout the entire design process, from conceptual design through to the completion of construction, to ensure that their needs and expectations are met. The precision and detail with which we prepare our working drawings enables realistic, competitive bidding and a clear understanding of the construction requirements for the project. This standard of care is applied to every aspect of our performance, from the aesthetics and functionality of our designs to the close attention we pay to the budget constraints that affect most projects. It is our aim to provide you with beautiful, affordable, buildable designs. We invite you to give us a call or send us an email to find out how we can assist you with your upcoming project.
"Great service"
Michael T on October 2024
Sturgill Associates Architects is a client-oriented architectural firm, providing a full spectrum of design services including new custom designs, additions, alterations, remodels and tenant improvements for commercial and residential properties. We maintain a close relationship with our clients throughout the entire design process, from conceptual design through to the completion of construction, to ensure that their needs and expectations are met. The precision and detail with which we prepare our working drawings enables realistic, competitive bidding and a clear understanding of the construction requirements for the project. This standard of care is applied to every aspect of our performance, from the aesthetics and functionality of our designs to the close attention we pay to the budget constraints that affect most projects. It is our aim to provide you with beautiful, affordable, buildable designs. We invite you to give us a call or send us an email to find out how we can assist you with your upcoming project.
"Great service"
Michael T on October 2024
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