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TRUSTED BY ALTADENA, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon18
    Verified architectural services reviews

Find Architects in Altadena

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

Serving Altadena, CA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"We worked with Andi on our house remodel, and they exceeded our expectations. His team was professional, creative, and attentive to our vision while providing expert guidance throughout the process. They balanced aesthetics with functionality, ensuring the design was both beautiful and practical. Communication was seamless, and they were always responsive to our questions and feedback. The final result truly transformed our space, and we couldn’t be happier. Highly recommend them for anyone looking for quality architectural work!"
Front
Kitchen
Dining
Living Room
Kitchen

+464

Response time1 day
Recommended by81%of homeowners
Avatar for PETER T ERDELYI & ASSOCIATES INC
PETER T ERDELYI & ASSOCIATES INC
4.8(
12
)
ArchitectArchitect - For BusinessDesigner - Building+1 more

Serving Altadena, 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."
Beverly Hills
Pacific Palisades
Culver City
Recommended by87%of homeowners
Avatar for Design 1 Studio
Design 1 Studio
4.9(
74
)
ArchitectDraftsperson/CADD

Serving Altadena, CA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"I?m a real estate investor and I?ve used Design1 Studio for three projects now ? two ADUs and a small lot subdivision. They understand the investor mindset and don?t over-design things. They know how to maximize square footage while keeping construction costs reasonable. That?s rare."
Different Projects
Different Projects
Different Projects
Different Projects
Homes and Buildings

+30

Response time1 day
9 neighbors recently requested a quote
Recommended by24%of homeowners
Avatar for ESL Designs
ESL Designs
4.7(
33
)
ArchitectDesigner - BuildingDraftsperson/CADD

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
Response rate100%
6 neighbors recently requested a quote
Avatar for Hye Turf Designs Landscaping and Pool Remodeling
Hye Turf Designs Landscaping and Pool Remodeling
5.0(
20
)
Architect - LandscapeArchitect - Landscape - For Business

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

2 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Jean Prescott Studio
Jean Prescott Studio
4.7(
33
)
ArchitectDraftsperson/CADD

Serving Altadena, CA and surrounding areas

Approved

In business since 2017

Emergency services offered

Credit card accepted

"Entire interior house remodel was done. Excellent company to hire and follow through with every little detail of your house. Add a price that fits your budget. Friendly and congenial people to work with."
Scavolini Kitchen
Livingroom
White and Bright Livingroom
Corona Del Mar
Corona Del Mar

+47

Response time4 hrs
Response rate98%
3 neighbors recently requested a quote
Avatar for Drafting Design Services
Drafting Design Services
4.8(
18
)
Draftsperson/CADD

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
6 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Green Republic Landscape Design Services
Green Republic Landscape Design Services
4.6(
52
)
Architect - LandscapeArchitect - Landscape - For Business

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
Response rate100%
10 neighbors recently requested a quote
Avatar for C Perez Sprinkler & Landscape
C Perez Sprinkler & Landscape
4.5(
142
)
Architect - LandscapeArchitect - Landscape - For Business

Serving Altadena, CA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Cipriano has been working with us for 7 years on maintaining our yard. He has a wealth of knowledge on plants, flowers, and trees. He landscaped our front and back yards, which included fencing and irrigation and drainage. When dealt with a problem he is able to provide workable ideas to solve it…which he has done several times for us. He has a “good eye” for what works best and a real passion for gardening and landscaping."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+59

Response time1 day
1 neighbors recently requested a quote
Recommended by91%of homeowners
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Showing 1-10 of 493
Architects questions, answered by experts

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?

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?

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?

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?

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?

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.