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4.5

(37 reviews)

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Avatar for A.Design
A.Design
5.0(
20
)

Serving Altadena, CA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"Working with A. was hands down one of the best decisions I made for my remodel. From our first meeting, they really listened to what I wanted and brought ideas to the table that I hadn’t even considered. They found the perfect balance between style and functionality, making my home not just beautiful but also incredibly livable. Throughout the process, they were easy to communicate with, super responsive, and always on top of things. Remodeling can be stressful, but they made it as smooth as possible. The attention to detail was next level—I kept noticing little thoughtful touches even after the project was done. I couldn’t be happier with how everything turned out. Andi was friendly and helpful. If you’re looking for an architect who genuinely cares about their work and their clients, A. is the way to go. Highly recommend!"
Front
Kitchen
Dining
Living Room
Kitchen

+464

Response time1 day
Recommended by81%of homeowners
Avatar for ESL Designs
ESL Designs
4.7(
33
)

Serving Altadena, CA and surrounding areas

Approved

In business since 2018

Free estimates

Small jobs welcome

"We had a great experience working with Eran. He is a professional and is an expert in his field for our specific project, he handled all the structural work for the seismic retrofit and when my architect had a melt down, he even stepped in and took on that responsibility too. He collaborated with us and we spent the time to understand our needs and where we wanted to take the project. He made our life much easier by getting the building permits and worked with the planning department and the inspectors. Invaluable. We look forward to working with him in our next phase and would recommend him for future work."
3D Design for a Remodel
New Build
Kitchen Remodel
Bedroom
Bedroom

+23

Response time1 day
6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Design 1 Studio
Design 1 Studio
4.9(
73
)

Serving Altadena, CA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"From our very first meeting I knew these were the right people for our project. We added a second story to our home in El Monte and they designed it so beautifully that it doesn?t look like an addition at all. Neighbors keep asking who our architect is."
Different Projects
Different Projects
Different Projects
Different Projects
Homes and Buildings

+30

Response time12 hrs
10 neighbors recently requested a quote
Recommended by22%of homeowners
Avatar for Hye Turf Designs Landscaping and Pool Remodeling
Hye Turf Designs Landscaping and Pool Remodeling
5.0(
20
)

Serving Altadena, CA and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"Hutch was professional and personable , easy to talk to about my design for front yard. His experience in design suggested minor adjustment of my idea/drawings but willing to landscape any way of my preferences. His contract was thoroughly itemized and didn’t add any additional “surprise” costs. Payments were installments as project progressed. Hardworking Crew stayed on expected timeline. Hutch came by every day to supervise progress of our landscaping. Our front and backyards were transformed from weed fields into beautiful landscaping. Removed weeds and unwanted plants, prepped surface, laid weed barrier and installed Artificial turf in backyard, laid pavers and stone walkway. Transformed front yard into rock riverbed surrounded by plants accented with boulders, and installing drip system. Planted border shrubs and a rose garden. Lined walkway and rose garden with pavers matching our flagstone. Our sewer line needed realignment which Hutch arranged to be repaired. Other company estimate quotes were either vague, didn’t itemize, or way over priced. Offered a few addresses for us to drive by to see his actual work which helped us on our decision to work with Hye Turf Design. I would highly recommend Hye Turf Designs. Thanks Hutch !"
Landscaping Project
Landscaping Project
Landscaping Project
Additional Photos
Additional Photos

+28

1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Leslie Andersen Consulting
Leslie Andersen Consulting
5.0(
8
)

Serving Altadena, CA and surrounding areas

Approved

In business since 2017

Customers say: True professional

"I had the pleasure of working with Leslie Andersen on two separate projects: an ADU and a Guest House. I can't speak highly enough about the exceptional experience we had from start to finish. First and foremost, her quick response time was truly impressive. Every query was met with prompt, detailed answers, which made the entire process smooth and stress-free. It was clear that Leslie values their clients' time and prioritizes effective communication. As for the projects themselves, the results exceeded my expectations. The ADU design is both functional and aesthetically pleasing, blending seamlessly with the existing structures while adding a fresh touch. The guest house is equally crafted with attention to detail and a clear understanding of our needs and preferences. The professionalism, creativity, and efficiency displayed throughout were remarkable. I highly recommend Leslie to anyone seeking a top-notch architecture. Her commitment to excellence and client satisfaction truly sets her apart. Thank you for making our vision a reality!"
Architects & Building Design Project
Architects & Building Design Project
Architects & Building Design Project
Architects & Building Design Project
Architects & Building Design Project

+6

Response time1 day
Response rate100%
Recommended by100%of homeowners
Avatar for Jean Prescott Studio
Jean Prescott Studio
4.7(
33
)

Serving Altadena, CA and surrounding areas

Approved

In business since 2017

Emergency services offered

Credit card accepted

"Jean Prescott Studio did a great job on my medical office! They made the whole process easy and handled everything from design to permits. The team was helpful, clear, and kept things on track. If you need solid architectural work that looks good and stays on budget, I highly recommend them!"
Scavolini Kitchen
Livingroom
White and Bright Livingroom
Corona Del Mar
Corona Del Mar

+47

Response time4 hrs
Response rate98%
12 neighbors recently requested a quote
Avatar for Drafting Design Services
Drafting Design Services
4.8(
18
)

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Credit card accepted

Offers commercial services

"If you?re here looking for an architect, look no further. Francisco is the man for the job. He helped us with a garage to ADU conversion. Francisco kept us informed and communicated with us throughout the entire project. He was very professional, helpful and patient. We had tons of questions and he had the answers. He is very efficient and great at his job. We would hire him again with no hesitation. Thank you Francisco for making for making this process a breeze!"
Response time2 days
7 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Green Republic Landscape Design Services
Green Republic Landscape Design Services
4.6(
52
)

Serving Altadena, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Green Republic did an amazing job. They worked with us to give us what we wanted and within our budget. The work was fast. Seriously, their staff are fantastic. And extremely friendly. They completed the entire job in days. The best part about this is I’m pretty positive I now have the best front yard on my block. The neighbors continue to compliment the job and ask who did the work. Will totally be using them again when we start on the backyard."
Formosa Project
Linda Flora
Allot Ave
Oak Meadow Ln.
Lake Hollywood

+264

Response time4 days
6 neighbors recently requested a quote
Recommended by95%of homeowners
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Showing 1-10 of 485
Architects questions, answered by experts

In Altadena, CA, architectural service projects often have unexpected costs from site-specific challenges. These include geological surveys for hillside properties, soil testing for expansive clay, and arborist reports for heritage oaks. Additionally, you may face fees for fire department plan reviews, historic district assessments, and HOA architectural reviews, all of which can impact your project's budget beyond initial estimates.

Helpful?

A seasonal routine is vital for architectural service projects in California. In fall, inspect fire-resistant landscaping and check drainage systems before the rains. During winter, monitor for water intrusion and foundation stability on hillsides. After the wet season in spring, assess any post-rain damage. In summer, check for heat-related material expansion and ensure all fire safety measures are compliant and ready.

Helpful?

It's time for an architectural service project in Altadena when you notice specific structural or climate-related signs. These include foundation settling on hillside properties, new cracks after earthquake activity, or persistent drainage issues during winter rains. Also consider a project if your HVAC system struggles with local temperature swings or you plan an ADU addition, which is a popular upgrade.

Helpful?

For architectural service projects in Altadena, having the right supplies is key. Keep tarps for winter rain protection and dust masks for Santa Ana wind conditions. Sandbags help with erosion control, while a generator is useful for power outages. Also, a digital camera for documenting progress and a tablet for accessing plans on-site will help you stay organized and prepared for local conditions.

Helpful?

When hiring for an architectural service project in Altadena, prioritize pros with specific local expertise. Look for experience with Los Angeles County building codes, hillside construction challenges, and fire-resistant design principles. Their portfolio should show successful projects in similar foothill communities. Ensure they can coordinate effectively with specialized consultants like geologists and arborists, which is often necessary for local projects.

Helpful?

The Altadena, CA homeowners’ guide to architectural services

From average costs to expert advice, get all the answers you need to get your job done.