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TRUSTED BY PLACENTIA, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon19
    Verified architectural services reviews

Find Architects in Placentia

Avatar for So Cal Builders & Design Inc

So Cal Builders & Design Inc

4.72(
187
)
Approved Pro

So Cal Builders & Design Inc

4.72(
187
)
Approved Pro
Customers say: True professional
43 years of experience
Free onsite estimate

So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025

So Cal Builders & Design have been helping the homes throughout California look perfect one nail and brick at a time! With the best prices and highest standard of service, we can deliver the kitchen or bathroom of your dreams on time and on budget! Our staff of trained technicians will build your addition or remodel to your specifications; using only the finest quality materials and the most up-to-date building procedures. We also have in house masonry service as well as perform a number of other services such as plumbing, lighting, painting, patios, and much more. Because we do it all ourselves, we eliminate miscommunication, stress and down time. We don’t use outside contractors or fancy gimmicks to get our customers. We combine new and modern building practices with tried and true hard work to deliver a work of art every time and that is why our customers make us #1. Request Your Free Estimate Voice Star: (888) 284-9122.

"Very good company . I am very satisfied with their professionalism . Highly recommended this company"

Leta W on December 2025


Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
Approved Pro

Sentri Homes

New on AngiNew on Angi
Approved Pro
743 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for New Beginning Engineering

New Beginning Engineering

5.00(
15
)
Approved Pro

New Beginning Engineering

5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
192 local quotes requested

We are a full service Architectural and Structural Engineering family-owned company and believe that quality, honesty, and fair pricing are the cornerstones to a trusting working relationship between home owner and engineer. Architectural and Structural Engineering Solutions For: --ADU's --New Home Design & Construction --2nd Floor Additions --Decks and Patio Covers --Retaining Walls and Basements --Home Design on Hillsides --All residential and commercial needs for Architectural and Structural Engineering We are a Christian based engineering company and conduct our business with the utmost ethics. We operate our business on a lump price fee. With this price, you don’t end up paying for change orders or comments back from the city. Our lump sum fee includes getting you all the way to permit. We will provide you with clean, clear, and professional looking architectural and structural engineering plans and calculations for both your contractor and for submission to your city agency. We also serve many realtors as well providing structural engineering assessment for properties either during a pre-approval process or during their contingency period to ensure the home being purchased is structurally adequate with no major issues. We chose to work in this industry because we want our customers to obtain their dreams. Your home is your sanctuary. Make your home the way you want it and work with a company that values trust, integrity, and quality.

"GS ArcDesign has had the privilege of working with New Beginning Engineering for many years, successfully completing over 15 projects together, with more projects currently in progress. Throughout this collaboration, I have consistently experienced the highest level of professionalism, reliability, and technical expertise from their team. Their services—including structural design, structural calculations, energy compliance (Title-24), and MEP engineering—have been integral to both residential and commercial projects, particularly those involving legalization and permitting. Each project has been handled with thoroughness, precision, and a commitment to excellence. As an architectural firm, we rely heavily on engineering partners who are not only skilled but also dependable and trustworthy. New Beginning Engineering has consistently met and exceeded those expectations, making them one of our most valued collaborators. I hold a very positive impression of New Beginning Engineering and confidently recommend their services to anyone seeking competent, reliable, and professional engineering support."

Sisitha E on August 2025

We are a full service Architectural and Structural Engineering family-owned company and believe that quality, honesty, and fair pricing are the cornerstones to a trusting working relationship between home owner and engineer. Architectural and Structural Engineering Solutions For: --ADU's --New Home Design & Construction --2nd Floor Additions --Decks and Patio Covers --Retaining Walls and Basements --Home Design on Hillsides --All residential and commercial needs for Architectural and Structural Engineering We are a Christian based engineering company and conduct our business with the utmost ethics. We operate our business on a lump price fee. With this price, you don’t end up paying for change orders or comments back from the city. Our lump sum fee includes getting you all the way to permit. We will provide you with clean, clear, and professional looking architectural and structural engineering plans and calculations for both your contractor and for submission to your city agency. We also serve many realtors as well providing structural engineering assessment for properties either during a pre-approval process or during their contingency period to ensure the home being purchased is structurally adequate with no major issues. We chose to work in this industry because we want our customers to obtain their dreams. Your home is your sanctuary. Make your home the way you want it and work with a company that values trust, integrity, and quality.

"GS ArcDesign has had the privilege of working with New Beginning Engineering for many years, successfully completing over 15 projects together, with more projects currently in progress. Throughout this collaboration, I have consistently experienced the highest level of professionalism, reliability, and technical expertise from their team. Their services—including structural design, structural calculations, energy compliance (Title-24), and MEP engineering—have been integral to both residential and commercial projects, particularly those involving legalization and permitting. Each project has been handled with thoroughness, precision, and a commitment to excellence. As an architectural firm, we rely heavily on engineering partners who are not only skilled but also dependable and trustworthy. New Beginning Engineering has consistently met and exceeded those expectations, making them one of our most valued collaborators. I hold a very positive impression of New Beginning Engineering and confidently recommend their services to anyone seeking competent, reliable, and professional engineering support."

Sisitha E on August 2025


Avatar for RCS Engineering Services

RCS Engineering Services

5.00(
3
)
Approved Pro

RCS Engineering Services

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"

Constantine P on January 2020

Our firm provides structural engineering support for all phases in the design and construction process. Our primary function is to create structural plan packages for submission to the governing authority. We are also available to conduct preliminary field visits and structural observations during construction. In whichever service you need, we pride ourselves in carrying out the job professionally, quickly, and for an affordable price.

"I searched many and started off with others and nobody came close in handling what we needed. I found Richard, he came in and took care of it all; it was completed in a timely manner with his accurate thinking. He definitely thought ahead and it saved me a lot of time, grief and money. He got ahead of any issues and resolved potential problems that could arise. He knew exactly what the city would require and did what needed to be done which saved us an untold amount of time and money. I did not know him from Adam, he works at a very different level of ability and knowledge. His pricing for me was the best! He is a gem, get him if you can!"

Constantine P on January 2020


"Responsive, helpful, easy to get along with, no high pressureâ ¦ They sent letter of recommendation from another customer and gave me a good book reference for my project. I am still working with CDB, but have only had good experiences so far."

James H on October 2021

CDB Architects provides custom design, planning and permit services for a smooth process during all phases of your project. Trust us to keep your project on schedule and within budget.

"Responsive, helpful, easy to get along with, no high pressureâ ¦ They sent letter of recommendation from another customer and gave me a good book reference for my project. I am still working with CDB, but have only had good experiences so far."

James H on October 2021


Envision Architecture

New on AngiNew on Angi
Approved Pro

Envision Architecture

New on AngiNew on Angi
Approved Pro
49 years of experience

Envision is a full-service architecture and interiors firm specializing in innovative design and client service. Our clients are linked by their desire to create imaginative spaces that improve the lives of the people that inhabit them. We build representing that reflect their core values. We work closely with our clients to gain an understanding of their culture and business operations. We view this as essential to the process of designing effective space. We believe in high performance sustainable design that provides long-term value.

Envision is a full-service architecture and interiors firm specializing in innovative design and client service. Our clients are linked by their desire to create imaginative spaces that improve the lives of the people that inhabit them. We build representing that reflect their core values. We work closely with our clients to gain an understanding of their culture and business operations. We view this as essential to the process of designing effective space. We believe in high performance sustainable design that provides long-term value.


Avatar for Opulent Design Build

Opulent Design Build

5.00(
1
)
Approved Pro

Opulent Design Build

5.00(
1
)
Approved Pro
33 local quotes requested
23 years of experience

Opulent Design Build is Orange County's premier design-build company. We take the complicated process of home design, building and remodeling and make it an experience that you will love! There's no need to fear the design and construction process. We personally handle every aspect of the design, permitting and construction project process. Opulent Design Build is truly a one-stop design-build company.

Opulent Design Build is Orange County's premier design-build company. We take the complicated process of home design, building and remodeling and make it an experience that you will love! There's no need to fear the design and construction process. We personally handle every aspect of the design, permitting and construction project process. Opulent Design Build is truly a one-stop design-build company.


Avatar for Hedgemon PD

Hedgemon PD

5.00(
4
)
Approved Pro

Hedgemon PD

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

We are a reputable architectural design company that specializes in a variety of interior design and spatial planning projects. We take pride in our ability to exceed expectations in all aspects of business. We look forward to building long-term relationships with our clients.

"I worked with Hedgemon Group on a few projects and they are very professional and very responsive. They take care of everything from the beginning to the end"

Kamran A on April 2023

We are a reputable architectural design company that specializes in a variety of interior design and spatial planning projects. We take pride in our ability to exceed expectations in all aspects of business. We look forward to building long-term relationships with our clients.

"I worked with Hedgemon Group on a few projects and they are very professional and very responsive. They take care of everything from the beginning to the end"

Kamran A on April 2023


Avatar for Uni Construction

Uni Construction

5.00(
7
)
Approved Pro

Uni Construction

5.00(
7
)
Approved Pro
Customers say: Quick response
14 local quotes requested
5 years of experience

We provide complete design, drafting and rendering service. We can take project at any phases all the way to city permit. 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

We provide complete design, drafting and rendering service. We can take project at any phases all the way to city permit. 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


"Excellent service. He is very knowledgeable and help me out with ideas that I didn't know about and if there is problem he just want's me to call him and he'll fix it."

Steve B on January 2022

Drafting and Engineering. We will provide a complete set of architectural and structural plans to submit to building departments to obtain permits for your project. Custom Homes Room Additions Remodels Fire Damages Water Damages Spec Homes

"Excellent service. He is very knowledgeable and help me out with ideas that I didn't know about and if there is problem he just want's me to call him and he'll fix it."

Steve B on January 2022

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FAQs for architectural service projects in Placentia, CA

While you might think that architects only draw blueprints for buildings, they are much more involved in the overall construction process than you might realize. While they aren’t the ones swinging the hammers, architects do the following: 

  • Communicate with the homeowner on the project request, including assistance when exact plans aren’t known

  • Develop computer-aided models and blueprints of the requested design

  • Ensure that the design incorporates form, function, and safety features

  • Provide the contractor with the agreed-upon design

  • Supervise the general contractor and any subcontractors throughout the project

  • Communicate any needed changes to the project with the homeowner and draw new plans accordingly

Before settling on and hiring an architect, it’s beneficial to you as a homeowner to ask some questions to familiarize yourself with their work. After all, you wouldn’t want to spend time and resources on a professional that doesn’t specialize in exactly what you want in a house. Some questions to ask your architect include: 

  • How do you charge for services? Is it on an hourly basis, based on square footage, or based on project size?

  • How do we work together to stay on budget for this project?

  • Do you anticipate any future challenges with this project? How are these communicated?

  • What is your project management style? If you are not handling the day-to-day details, who is my point of contact? 

  • Can I see previous similar projects that you’ve completed?

  • Do you have any specialty experience, like working on historic homes or using sustainable building materials?

The average cost to hire an architect for your home project ranges between $2,200 and $10,500. However, depending on location and project type, you might end up paying as little as $600 or as much as $45,000 or more. For example, the average cost of hiring an architect in North Carolina is between $1,800 and $2,000, but in California, that price tag jumps to $3,600 to $15,200

The price you pay for your architect also depends on their experience level. For example, a principal architect, the firm's owner, typically charges $150 to $250 per hour. However, an intern architect with three to five years of experience usually only charges $45 per hour. 

After you’ve spoken with your contractor and agreed on a project, they’ll draw up blueprints, or plans, that the construction crew will use. The blueprint process can take between four and six months to complete. While this can seem like a long time, remember that the architect must communicate with your municipality to determine codes, communicate with you as the homeowner with any changes or adjustments, and coordinate with the construction crew. 

If you simply remodel your home or add an addition, the time to draw up the plans will be shorter since fewer permits and surveys are required. Even still, it’s best to plan for a few months for the architect to complete this part of the project.

Knowing if you need an architect for your project can be tricky, especially if you've never worked with one before. In general, small remodeling projects like replacing fixtures typically don't require the expertise of an architect. However, larger projects, like moving walls or adding an addition to your home, should include an architect to ensure the project is structurally sound.

The Placentia, CA homeowners’ guide to architectural services

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