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Verified Reviews for Custom Home Building pros in The Sea Ranch, CA
*The Angi rating for Custom Home Building companies in The Sea Ranch, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Custom Home Building needs.
*The HomeAdvisor rating for Custom Home Building companies in The Sea Ranch, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Custom Home Building needs.
Last update on December 13, 2025
Find Custom home builders in The Sea Ranch

Fine Point Architecture & Planning Incorporated
Fine Point Architecture & Planning Incorporated
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
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

Evolution Drafting
Evolution Drafting
Our firm is a dynamic provider of drafting and house plan services, dedicated to turning your visions into tangible and pleasing structures. With a commitment to excellence, we bring expertise and innovation to every project we undertake. We specialize in comprehensive drafting services tailored to meet diverse client needs. Our offering include: Design: Crafting unique and functional designs that blend creativity with practicality. Drafting Services: Precision and attention to detail in creating accurate and detailed drafts for seamless project execution. 3D Modeling: Bringing designs to life with realistic 3D models that provide a vivid preview of the final structure. Project Management: From concept to completion, we offer end-to-end project management ensuring timely and efficient delivery. Interior Design: Enhancing spaces with innovative interior designs that harmonize aesthetics and functionality. Detail Services Offered: - Building Code Compliance - Construction Documentation - Renovation and Remodeling Plans About our Team: Our team comprises draftsman and project managers, each bringing a unique skill, style and experience to the table. Collaborative teamwork and alliance is at the core of our success, ensuring a holist approach to every project. We take pride in our commitment to delivering high-quality work on every project. Our rigorous quality control measures, pays attention to client requirements, and adherence to industry standards are the cornerstones of our success. Your satisfaction is our top priority and guarantee. At Evolution Drafting, we don't design structures; we create environments that inspire and endure. Work with us and experience the art of living.
"slow response times. no onsite visit, so had to confirm all measures myself. good product in the end."
jim E on September 2025
Our firm is a dynamic provider of drafting and house plan services, dedicated to turning your visions into tangible and pleasing structures. With a commitment to excellence, we bring expertise and innovation to every project we undertake. We specialize in comprehensive drafting services tailored to meet diverse client needs. Our offering include: Design: Crafting unique and functional designs that blend creativity with practicality. Drafting Services: Precision and attention to detail in creating accurate and detailed drafts for seamless project execution. 3D Modeling: Bringing designs to life with realistic 3D models that provide a vivid preview of the final structure. Project Management: From concept to completion, we offer end-to-end project management ensuring timely and efficient delivery. Interior Design: Enhancing spaces with innovative interior designs that harmonize aesthetics and functionality. Detail Services Offered: - Building Code Compliance - Construction Documentation - Renovation and Remodeling Plans About our Team: Our team comprises draftsman and project managers, each bringing a unique skill, style and experience to the table. Collaborative teamwork and alliance is at the core of our success, ensuring a holist approach to every project. We take pride in our commitment to delivering high-quality work on every project. Our rigorous quality control measures, pays attention to client requirements, and adherence to industry standards are the cornerstones of our success. Your satisfaction is our top priority and guarantee. At Evolution Drafting, we don't design structures; we create environments that inspire and endure. Work with us and experience the art of living.
"slow response times. no onsite visit, so had to confirm all measures myself. good product in the end."
jim E on September 2025

LMS Design
LMS Design
Lance M. Sprague specializes in custom residential and interior design, with an emphasis on sustainability. Lance's experience spans over 35 years, and includes high-end custom residential, multi-family housing, retail, mixed use, institutional, health care facilities, educational campuses, wineries, office towers and tenet improvements. Lance is a creative, competent, self-motivated individual, a team player with a keen eye for detail, quality and craftsmanship. Lance has many years experience putting together building permit sets, and taking projects from design development through building department submittal. Lance's construction experience provides him with an extensive working knowledge of residential building construction means, methods, materials and systems selection. Passionate about the environment, Lance studied sustainable architecture in school, and practiced it here from the beginning. We recommend LMS Building Design. Give them a try.
"Lance is local, professional, and responsive."
Greg S on July 2022
Lance M. Sprague specializes in custom residential and interior design, with an emphasis on sustainability. Lance's experience spans over 35 years, and includes high-end custom residential, multi-family housing, retail, mixed use, institutional, health care facilities, educational campuses, wineries, office towers and tenet improvements. Lance is a creative, competent, self-motivated individual, a team player with a keen eye for detail, quality and craftsmanship. Lance has many years experience putting together building permit sets, and taking projects from design development through building department submittal. Lance's construction experience provides him with an extensive working knowledge of residential building construction means, methods, materials and systems selection. Passionate about the environment, Lance studied sustainable architecture in school, and practiced it here from the beginning. We recommend LMS Building Design. Give them a try.
"Lance is local, professional, and responsive."
Greg S on July 2022

Gaona Construction, Inc.
Gaona Construction, Inc.
We're a locally owned and operated company with over 20 years of industry experience. We value honesty and integrity, and stand behind our work. We specialize in home building, additions, remodels. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We give free estimates! We look forward to building long-term relationships with our clients and guarantee your satisfaction
"It is rare that we find a contractor or trades person who exceeds our expectations, but that is what we found in Leonardo. He was fast and reliable, does clean, accurate work, and was able to fit our job into his schedule quickly. I could not be happier with Gaona Construction and he will be our first call the next time we need help."
Jeff R on March 2025
We're a locally owned and operated company with over 20 years of industry experience. We value honesty and integrity, and stand behind our work. We specialize in home building, additions, remodels. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We give free estimates! We look forward to building long-term relationships with our clients and guarantee your satisfaction
"It is rare that we find a contractor or trades person who exceeds our expectations, but that is what we found in Leonardo. He was fast and reliable, does clean, accurate work, and was able to fit our job into his schedule quickly. I could not be happier with Gaona Construction and he will be our first call the next time we need help."
Jeff R on March 2025

Studio Ecesis
Studio Ecesis
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
Holly Construction, Inc.
Holly Construction, Inc.
Holly Construction, Inc. is a licensed General Contractor servicing Sonoma County and the North Bay. We focus on providing you with the highest value and service whether it is a commercial building, winery and/or tasting room, tenant building improvement, new luxury home build, remodel or addition. We are dedicated to a high standard of workmanship and use the finest materials and craftsmanship to assure that you are a completely satisfied and happy client. Our 38 years of experience in the construction industry afford us the resources and skills to complete your project on time and on budget.
"High quality work that really took into account our goals and worked with us for the project, they made if happen."
Anne B on February 2022
Holly Construction, Inc. is a licensed General Contractor servicing Sonoma County and the North Bay. We focus on providing you with the highest value and service whether it is a commercial building, winery and/or tasting room, tenant building improvement, new luxury home build, remodel or addition. We are dedicated to a high standard of workmanship and use the finest materials and craftsmanship to assure that you are a completely satisfied and happy client. Our 38 years of experience in the construction industry afford us the resources and skills to complete your project on time and on budget.
"High quality work that really took into account our goals and worked with us for the project, they made if happen."
Anne B on February 2022

Sentri Homes
Sentri Homes
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.

Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018

TC BUILDER
TC BUILDER
TC BUILDER is a small company which completes small home improvement projects through the man power directly driven by the owner. Because of great planning and efficiency TC BUILDER can handle work loads normally done by a small crew of workers. Providing quality work, professionalism, and customer satisfaction one project at a time.
"Expert workmanship! Tony assessed the situation thoughtfully and presented several options. His work was meticulous and top-notch. We already hace a couple of future projects planned with Tony. We are thrilled to have found him!"
Cathy K on July 2024
TC BUILDER is a small company which completes small home improvement projects through the man power directly driven by the owner. Because of great planning and efficiency TC BUILDER can handle work loads normally done by a small crew of workers. Providing quality work, professionalism, and customer satisfaction one project at a time.
"Expert workmanship! Tony assessed the situation thoughtfully and presented several options. His work was meticulous and top-notch. We already hace a couple of future projects planned with Tony. We are thrilled to have found him!"
Cathy K on July 2024

Landmark Energy Upgrades
Landmark Energy Upgrades
Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!
"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."
Tony T on March 2019
Whether your project is a new construction, custom built home, an existing remodel, or an energy efficient upgrade, Landmark Construction has the industry experience and skilled staff to make your construction project a success. Our goal is to save you money through energy-efficient construction. Landmark Construction is California’s premier Air-Conditioning Contractor and Heating Contractor. Along with HVAC contracting we can better regulate your home’s temperature with new insulation and a new roof. Landmark Construction doesn’t stop at just energy upgrades. When it comes to renovations of existing homes, we pride ourselves in the ability to maintain your home’s charm and style with solutions for every kind of interior need from tile, drywall accents and wainscoting detail, cabinetry and countertop selection, to redesigning entire interior floor plans. Our network of interior designers can help you get just the look you envisioned from your remodeling or new construction project. We proudly serve Southern California including Bel Air, San Marino, Malibu, Calabasas, Beverly Hills, Century City, Encino, Brentwood and everywhere in between! When clients want to build it strong, build it beautiful, they build it Landmark! Do not hesitate to contact us regarding your next general construction project in Southern California. We look forward to providing you with a free, no obligation consultation today!
"Ezra and Charles are very friendly and personable. That is, when they want to take your money. What good is a 12-year warranty if you start ignoring your customers at 2 years. I needed my HVAC replaced. Because the HVAC sits on my roof, I decided to redo the roof too. Ezra and Charles came out and were really friendly so I immediately had a good impression of them. Even though it would’ve been cheaper to go with a roofer and a separate HVAC company, I decided to go with Landmark Construction Crew, aka Landmark Energy Upgrades. I figured it would be a more seamless process for one company to do both. I got this done in December of 2016. The thing with a roof is that you don’t know if it’s a good job or not until it rains so I waited to write a review. Around January 2018 ( a little over a year later ) we got some much needed rain but unfortunately, I had a leak coming from one of my vents. I emailed Ezra and he sent out a roofer. The roofer came, looked at the vent, jumped up on the roof for ten minutes and said he was done. Months later, it rained again, it leaked again, I emailed Ezra again. I decided to take a closer look at the vent and noticed that there was sunlight in the ductwork. I figured sunlight equals gap somewhere. When the roofer came, I told him and he said it’s nothing, probably just a reflection, without even taking a look. Then the roofer tells me that the next time there is a leak, I need to call the HVAC guy because it’s not a roof problem. I couldn’t believe it so I told him that HIS company IS the HVAC guy!! I used one company to do the roof and the HVAC so there is NOBODY else to blame. So, he jumps back on the roof and was done and gone in 10 minutes. About a month goes by and the rain is back and so is my leak. It’s 2019 so it rained a lot this year. Good for California, bad for me. So, I emailed Ezra again. After a few weeks, no reply. So, I email him again with pictures, a few more weeks go by and no reply. So, I call him and he picked up the phone. He sounded surprised to hear from me (probably didn’t recognize my phone number) and I start telling him about the leak. He said he didn’t get my emails but just text him my address and he’ll send somebody. A couple of weeks goes by and nothing. So, I text him again and after weeks and weeks of waiting, no reply. I’ve emailed, called, and texted so, at this point, it’s very obvious he’s avoiding me. If you are looking for a friendly company that is willing to take your hard-earned cash then Landmark is for you. But if you’re looking for a company that is accountable for their work then look elsewhere. I know I am."
Tony T on March 2019
FAQs for custom home building projects in The Sea Ranch, CA
One starting point to find a local home builder is to collect suggestions from friends and neighbors. However, it’s still wise to do some more research before you hire a builder. Read reviews to supplement any word-of-mouth recommendations. Check sources like Angi that have standards and criteria in place to screen the pros it lists can also help you find more reputable local home builders.
Typically, it’s more affordable to buy an existing home than it is to build a new one. New construction loan interest rates tend to be higher than interest rates for traditional mortgages. Additionally, the cost of materials is likely higher when building a new home than it was when an existing home was built (unless it’s a very new one). You’re also paying for all new appliances, finishes, permits, inspections, and connections for water, gas, and electricity.
The average price per square foot to build a house is about $150 per square foot. Overall, the cost to build a house ranges anywhere from $100 to $500 per square foot, depending on where you build. The primary cost factors include location, size, and style of house you build.
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.
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 The Sea Ranch, 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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