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    Verified custom home building reviews

Find Custom home builders in Cotati

Avatar for IVP Design Studio

IVP Design Studio

5.00(
9
)
Approved Pro

IVP Design Studio

5.00(
9
)
Approved Pro
Customers say: Quick response
36 years of experience

Igino Pellizzari is the Sole Proprietor of IVP Design Studio. He has been involved in building design for over 35-years in the San Francisco Bay Area . From 2004 to 2012 he was a Principal and Director of Design of the licensed architectural firm Studio Abitare in Emeryville, CA. Currently Igino is providing his services as a Residential Building Designer under California Business and Professions Code 5537 that does not require a license. If the scope of a project exceeds Section 5537 limitations, then Igino works with a registered structural engineer who will provide the specifications and calculations for that scope plus sign and stamp the documents. This is an invitation to work together, to begin a conversation to understand your goals, explore options and opportunities, and get to know each other so that we may collaborate to arrive at the best solution to achieve your objectives. Igino would look forward to the meeting with you to start the process and begin next steps.

" After purchasing our historically registered Maybeck house which had been neglected for years, Igino worked with us to bring the house up to current building standards (new foundation, electrical, plumbing, and most recently, taking on the challenge of replacing a chimney situated in the middle of the house.) In addition to these basic but very important improvements, Igino worked his way through the rest of the house, interior and exterior, consulting with us and making updates in keeping with the design integrity of the home (including a full kitchen re-model.) Finally Igino re-designed and managed from the bottom up (foundation to new pitched roof) the construction of our backyard cottage for which he received a design award from the Piedmont Architectural Design Committee. Igino is a pleasure to work with. He listens. He communicates well. He pays attention to the budget. He’s dedicated to getting the job done right. "

William F on September 2025

Igino Pellizzari is the Sole Proprietor of IVP Design Studio. He has been involved in building design for over 35-years in the San Francisco Bay Area . From 2004 to 2012 he was a Principal and Director of Design of the licensed architectural firm Studio Abitare in Emeryville, CA. Currently Igino is providing his services as a Residential Building Designer under California Business and Professions Code 5537 that does not require a license. If the scope of a project exceeds Section 5537 limitations, then Igino works with a registered structural engineer who will provide the specifications and calculations for that scope plus sign and stamp the documents. This is an invitation to work together, to begin a conversation to understand your goals, explore options and opportunities, and get to know each other so that we may collaborate to arrive at the best solution to achieve your objectives. Igino would look forward to the meeting with you to start the process and begin next steps.

" After purchasing our historically registered Maybeck house which had been neglected for years, Igino worked with us to bring the house up to current building standards (new foundation, electrical, plumbing, and most recently, taking on the challenge of replacing a chimney situated in the middle of the house.) In addition to these basic but very important improvements, Igino worked his way through the rest of the house, interior and exterior, consulting with us and making updates in keeping with the design integrity of the home (including a full kitchen re-model.) Finally Igino re-designed and managed from the bottom up (foundation to new pitched roof) the construction of our backyard cottage for which he received a design award from the Piedmont Architectural Design Committee. Igino is a pleasure to work with. He listens. He communicates well. He pays attention to the budget. He’s dedicated to getting the job done right. "

William F on September 2025


Avatar for Whitfield Architects, Inc.

Whitfield Architects, Inc.

5.00(
4
)
Approved Pro

Whitfield Architects, Inc.

5.00(
4
)
Approved Pro
Customers say: Quick response
17 years of experience

Whitfield Architects : CLIENT-FIRST SOLUTIONS Please write or call directly with any questions (The fees Angi charges us mean we unfortunately cannot respond to questions through the app.) [email protected] 415.724.6279 We are dedicated to providing efficient and effective custom solutions for our clients' projects large or small. Efficient: Integrated 3D modeling insure rapid design and production; flexible outcomes tailored to each project. Effective: Careful listening and communication to understand, document and achieve our client's goals and aspirations. Service-centered: Face-to-face House-call meetings, project-specific designers Respectful: Transparent finances, zero up-charge on reimbursements Call Whitfield Architects today!

"David is an amazing professional. Very knowledgeable and helped us with all our needs. "

Julia P on October 2025

Whitfield Architects : CLIENT-FIRST SOLUTIONS Please write or call directly with any questions (The fees Angi charges us mean we unfortunately cannot respond to questions through the app.) [email protected] 415.724.6279 We are dedicated to providing efficient and effective custom solutions for our clients' projects large or small. Efficient: Integrated 3D modeling insure rapid design and production; flexible outcomes tailored to each project. Effective: Careful listening and communication to understand, document and achieve our client's goals and aspirations. Service-centered: Face-to-face House-call meetings, project-specific designers Respectful: Transparent finances, zero up-charge on reimbursements Call Whitfield Architects today!

"David is an amazing professional. Very knowledgeable and helped us with all our needs. "

Julia P on October 2025


Avatar for RPS Design

RPS Design

4.90(
10
)
Approved Pro

RPS Design

4.90(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
23 years of experience

RPS Design has been helping homeowners in the North Bay and beyond to realize their dreams since 2003. We work closely with our clients to translate their vision into a built environment that is unique to each project. We enjoy exploring diverse design styles and strive to adapt to the homeowner's tastes. Our approach to design examines all aspects of the project needed to deliver a beautiful and functional product that satisfies the client's needs and wants.

"Outstanding. Great to work with. Provides the direction and guidance throughout the project! Can?t go wrong with Rob"

Steve S on August 2021

RPS Design has been helping homeowners in the North Bay and beyond to realize their dreams since 2003. We work closely with our clients to translate their vision into a built environment that is unique to each project. We enjoy exploring diverse design styles and strive to adapt to the homeowner's tastes. Our approach to design examines all aspects of the project needed to deliver a beautiful and functional product that satisfies the client's needs and wants.

"Outstanding. Great to work with. Provides the direction and guidance throughout the project! Can?t go wrong with Rob"

Steve S on August 2021


"Great job getting an ADU permiti through the city. Very easy, attentive. Gave good advice, a good sounding board to throw ideas at."

Jeff R on September 2024

FINE POINT Architecture & Planning, Inc. provides architectural services for for commercial and residential projects implementing 3D visualization tools to create design with finesse

"Great job getting an ADU permiti through the city. Very easy, attentive. Gave good advice, a good sounding board to throw ideas at."

Jeff R on September 2024


GLB ARCHITECTS

4.67(
6
)
Approved Pro

GLB ARCHITECTS

4.67(
6
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

At GLB Architects, we pride ourselves on providing creative Architectural Design in response to our client's needs. We offer a variety of residential and commercial design service, from new design and remodels to rehabs and ADA access analysis & upgrades.

"Wonderful experience."

Ted Y on November 2024

At GLB Architects, we pride ourselves on providing creative Architectural Design in response to our client's needs. We offer a variety of residential and commercial design service, from new design and remodels to rehabs and ADA access analysis & upgrades.

"Wonderful experience."

Ted Y on November 2024


Lake Design & Drafting

5.00(
4
)
Approved Pro

Lake Design & Drafting

5.00(
4
)
Approved Pro
Customers say: Quick response
22 years of experience
Free onsite estimate

We provide house plans for building permits, for residential remodeling and additions. We use 3D architectural software for full visualization and easy customization of your design ideas. We service entire San Francisco Bay area. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"I would highly recommend Christopher for his drafting skills.,his 3d software is especially useful for relaying the building concepts. In todays world it is rare to get a person on the phone when needed but Christopher was always there for me to answer questions and was quick to return requests. Be sure to give him all the necessary design criteria in the beginning to smooth out the design process for him which will ultimately save you money. "

James F on November 2025

We provide house plans for building permits, for residential remodeling and additions. We use 3D architectural software for full visualization and easy customization of your design ideas. We service entire San Francisco Bay area. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"I would highly recommend Christopher for his drafting skills.,his 3d software is especially useful for relaying the building concepts. In todays world it is rare to get a person on the phone when needed but Christopher was always there for me to answer questions and was quick to return requests. Be sure to give him all the necessary design criteria in the beginning to smooth out the design process for him which will ultimately save you money. "

James F on November 2025


Advanced Construction Company

5.00(
3
)
Approved Pro

Advanced Construction Company

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

ACC has been providing residential/commercial remodeling services to Northern CA since 1991. We are reliable, provide detailed estimates and competitive pricing. We are a Certified Green Builder. Advanced Construction Company has been in business since 1991, specializing in residential remodels. During the past 30 years, we have taken pride in providing 100% customer satisfaction through honesty, dependability and quality workmanship. Ed Story (owner/president) has more than 35 years of experience in the construction industry. An innovative problem solver, Ed brings experience and creative insight to every job. Experts in making your visions a reality, we use only quality materials and supplies and consistently work with the same subcontractors. Offering competitive fixed bid prices for any kind of work, ACC is the answer to all of your construction and remodeling needs.

"Very professional and easy to work with."

Carol H on July 2016

ACC has been providing residential/commercial remodeling services to Northern CA since 1991. We are reliable, provide detailed estimates and competitive pricing. We are a Certified Green Builder. Advanced Construction Company has been in business since 1991, specializing in residential remodels. During the past 30 years, we have taken pride in providing 100% customer satisfaction through honesty, dependability and quality workmanship. Ed Story (owner/president) has more than 35 years of experience in the construction industry. An innovative problem solver, Ed brings experience and creative insight to every job. Experts in making your visions a reality, we use only quality materials and supplies and consistently work with the same subcontractors. Offering competitive fixed bid prices for any kind of work, ACC is the answer to all of your construction and remodeling needs.

"Very professional and easy to work with."

Carol H on July 2016


Avatar for Studio Ecesis

Studio Ecesis

5.00(
3
)
Approved Pro

Studio Ecesis

5.00(
3
)
Approved Pro
Customers say: Quick response
25 years of experience

Studio Ecesis is a small, full-service architecture firm that provides conscientious solutions to both public and private sector clients. We are passionate about architectural design and its ability to positively impact people's lives. We proudly serve our customers with pride, integrity, and attention to the details that matter most to you.

"Michael is very detail orientated, but just as important he came up with design concepts that I could have never imagined. I used him on a cabin addition and the design was fantastic. I highly recommend him for your next project."

STEVE M on August 2021

Studio Ecesis is a small, full-service architecture firm that provides conscientious solutions to both public and private sector clients. We are passionate about architectural design and its ability to positively impact people's lives. We proudly serve our customers with pride, integrity, and attention to the details that matter most to you.

"Michael is very detail orientated, but just as important he came up with design concepts that I could have never imagined. I used him on a cabin addition and the design was fantastic. I highly recommend him for your next project."

STEVE M on August 2021


Avatar for Silverlining Construction

Silverlining Construction

3.80(
5
)
Approved Pro

Silverlining Construction

3.80(
5
)
Approved Pro
28 years of experience
Free onsite estimate

We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our review from satisfied clients. Give us a call today so we can answer all of your questions. Satisfaction guaranteed!

"Jim was extremely professional and his communication was excellent. He walked me through the process and gave me options. Jim amd his team gave me 5 star service on the 2,840 sq ft house they built for me. From the floors to the doors Jim helped me pick out everything came out great. I am so glad he was recommended to me by my neighbor Jared."

Brian M on April 2025

We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our review from satisfied clients. Give us a call today so we can answer all of your questions. Satisfaction guaranteed!

"Jim was extremely professional and his communication was excellent. He walked me through the process and gave me options. Jim amd his team gave me 5 star service on the 2,840 sq ft house they built for me. From the floors to the doors Jim helped me pick out everything came out great. I am so glad he was recommended to me by my neighbor Jared."

Brian M on April 2025


GLB Architects

3.70(
8
)
Approved Pro

GLB Architects

3.70(
8
)
Approved Pro
Customers say: Quick response
27 years of experience
Free onsite estimate

At GLB Architects, we pride ourselves on providing creative Architectural Design in response to our client's needs. We offer a variety of residential and commercial design service, from new design and remodels to rehabs and ADA access analysis & upgrades.

"we understand the process ? and the week of month for the push to get a responsive action on this one but it was never my intention to make sure that the other one gets to be ?? this week and I will be alright with you if you want me to come in for a interview with the hiring process and the other one is a little bit of time conformed to be an attachment with the video of the room and I will be alright with you if you have any other questions concerns please feel free to contact me if you haven't already sent it to the video of the guy who was in charge for a few days and then we can go to the other side of my life and I don't know what to tell you when I get home from the gym so I don't think I'll make you a few more to come in for me ?"

Tre J S on January 2020

At GLB Architects, we pride ourselves on providing creative Architectural Design in response to our client's needs. We offer a variety of residential and commercial design service, from new design and remodels to rehabs and ADA access analysis & upgrades.

"we understand the process ? and the week of month for the push to get a responsive action on this one but it was never my intention to make sure that the other one gets to be ?? this week and I will be alright with you if you want me to come in for a interview with the hiring process and the other one is a little bit of time conformed to be an attachment with the video of the room and I will be alright with you if you have any other questions concerns please feel free to contact me if you haven't already sent it to the video of the guy who was in charge for a few days and then we can go to the other side of my life and I don't know what to tell you when I get home from the gym so I don't think I'll make you a few more to come in for me ?"

Tre J S on January 2020

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Custom Home Builders questions, answered by experts

Custom homes can take an average of 18 months to build, mainly due to the lengthy design process, and most projects take somewhere between 12 and 24 months. When you work with the right custom home builders near you, they can help you map the road ahead and understand what can speed up or delay the timeline. Choosing locally available materials, for example, can speed things up without losing that customized touch.

The term “cottage” is subjective, so there’s no rigid definition, but it generally refers to a small home with simple and purposeful architecture that embraces nature and focuses on charm over everything else. Cottages are typically 1 or 1 1/2-stories tall, usually with gabled roofs, and are built out of natural materials that help make the structure a part of the surrounding nature rather than something that stands out from it. A big part of what makes a cottage a cottage is the decor, which includes natural materials from the nearby area.

Green homes are often more expensive to build, averaging around $200 per square foot compared to the $150 per square foot you’d spend to build a standard home. However, green homes can save you money on your utility bills by consuming less energy or creating energy using solar panels or wind turbines on-site. They’re more expensive to build, but they often end up costing less in the long run.

Yes, such as using eco-friendly materials and energy-efficient designs for long-term savings.

Local regulations dictate how big an ADU can be, and there may also be restrictions on the percentage of the main residence’s square footage an ADU can have. In most cases, an ADU must be smaller than the main residence, but check with your local building authority to confirm restrictions on ADU size.

The Cotati, CA homeowners’ guide to custom home building

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

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