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The Best Custom Home Builders in Portola Valley, California

6 Min Read

Traditional, contemporary, or Mediterranean: these are just some of the styles the best custom home builders in Portola Valley are capable of creating. After years of experience polishing their skill sets, each of these firms is highly capable of building unique homes that reflect the client’s lifestyle and personality.

Most of these firms are affiliated with industry organizations like Build It Green, the National Association of the Remodeling Industry (NARI), the National Association of Home Builders (NAHB), and the U.S. Green Building Council (USGBC). Most of the principals and owners who run these firms have plenty of experience, having worked in the industry for more than 20 years.

Alftin Construction

2995 Woodside Rd, Woodside, CA 94062

There are some builders who follow the rule of taking up only a limited amount of projects per year. Alftin Construction is one of those firms. A company that has been in the industry for over 30 years, Alftin Construction has teamed up with a number of Bay area clients who either want a new home or wish to remodel their homes and with different styles from the traditional to the Mediterranean, contemporary, Spanish colonial, and the French farmhouse styles.

To help clients with unique visions for their new or remodeled homes, Alftin Construction has a team of talented professionals who provide the projects with the thorough attention to detail that results in homes like this contemporary transitional custom home in San Francisco. A mid-sized home with a rustic exterior in a warm and classy brown palette with a mixed siding exterior and a metal roof, it is a great example of the modern and striking projects provided by Alftin Construction.

Bill Fry Construction

10351 San Fernando Ave., Cupertino, CA 95014

Considered to be the professional’s choice when building residential projects, Bill Fry Construction is an award-winning Bay area home remodeling contractor and custom home builder for clients on the Peninsula. With over 20 years of industry experience, the firm has built a reputation for quality workmanship, attention to detail, and services that cater to the needs of a variety of clients. Among its many projects, its most notable might be this modern Tuscan style home in Menlo Park. Completed for a local architect, it has Blomberg windows and a standing seam metal roof that highlights its modern California Mediterranean design. Alongside the main house is a little Italian Tuscan Villa that serves as a guest house hidden snuggly between some beautiful oak trees. 

These projects are guided by the expertise of company principal Bill Fry. For over 20 years, Fry has been working on building and improving homes for clients in the San Francisco Bay area. Fry has also built over 100 hillside homes at Portola Valley ranch where he worked as a journeyman carpenter and foreman. 

Conrado Home Builders

14363 Saratoga Ave, Ste. #206, Saratoga, CA 95070

Conrado Home Builders is a contracting firm specializing in crafting large custom estates for clients in the Peninsula and Silicon Valley. In its 33 years of operations, the firm has built and remodeled over 90 custom homes and local estates that can range in sizes from 2,200-square-feet jewelry box homes to 16,000-square-foot luxury estates. One great example of the firm’s work is this French country custom home in Portola Valley. Despite its traditional look, it has all the modern necessities and luxuries such as an office, a basement theater, and an outdoor entertainment area which makes it the perfect home for hosting a festive gathering. Other home styles the firm is capable of crafting are the contemporary, Mediterranean,

Tuscan, and eclectic shingle styles among many others. As a veteran firm, Conrado Home Builders has been working with a building approach that involves high collaboration between the client and its team of highly skilled builders, designers, landscape architects, and structural and energy engineers.  This building approach has helped the firm endure and thrive for years after its establishment, allowing it to create unique homes.

CSI Custom Homes

1755 E Bayshore Road, #27A, Redwood City, CA 94063

In its 30 years of existence in the construction industry, CSI Custom Homes has built a reputation for providing clients with exceptional customer service. From the initial design to the final walkthrough, this firm’s team takes a hands-on approach that creates highly crafted and exceptional homes in either the traditional or contemporary styles. Over the years, the firm has been able to foster and care for its connections with some of the leading architects, designers, and subcontractors in the area.

Along with these connections, the firm is currently managed by co-principals Todd Blocker and Mike Maldonado. While Blocker brings more than 30 years of home building and construction project management experience, Maldonado is known for providing precise craftsmanship that revolves around high attention to detail mixed with the ability to deliver exceptional customer service. 

Innovative Custom Builders

633 Quarry Road, Unit A, San Carlos, CA 94070

Innovative Custom Builders’ niche involves building high-end custom homes and specialty remodeling for clients around Portola Valley, Los Altos Hills, Los Altos, San Carlos, and Menlo Park. As a firm that has been working in the industry for over 25 years, Innovative Custom Builders has become known as a premier builder with a keen eye for the most modern trends.

Over the years, the firm has crafted homes in a variety of styles including the Spanish revival and modern. These homes are the product of a building process that involves the entire team— the firm’s architects, designers, engineers, and consultants. The process has brought the firm recognition from clients, and the firm is selective about the new projects it takes on.

Supple Homes Inc.

2087 Avy Ave., Menlo Park, CA 94025 

A 16-year-old firm, Supple homes, Inc. has created several home projects that are beautiful enough to be recognized by industry publications like The Mercury News and Build Magazine. Magazines have also recognized the firm with honors like the 2021 Home Builder Awards for Best Luxury Residential Construction Company in California.

Architect: Marshall Schneider, Schneider Design Associates

Over the years, that recognition has helped Supple Homes Inc. gain more clients with unique tastes in home design. From the traditional to the Craftsman, modern, and Mediterranean styles among many others, this firm is well-equipped with a highly collaborative team known for delivering projects on time and on budget.  Supple Homes, Inc. grew into one of the San Francisco Bay area’s most respected and trusted home builders and remodelers.

Timeline Design-Build

14401 Big Basin Way, Saratoga, CA 95070

Timeline Design Build is an architecture, design, and construction firm established in 1990. Ever since then, it has amassed a team of highly experienced professionals who have over a century of combined experience. Collaborating with some of the best architects and interior designers, Timeline Design Build is able to dive into the needs and desires of its clients while gathering knowledge of the client’s area and local regulations. During the process, clients can also count on daily updates through their own project manager. Once the project is completed, clients are given a Construction Completion Certificate that assures the project’s absolute completion.

One great result of this precise project management process is this traditional home in Portola Valley. The home is designed with tall windows, sliding glass doors, and white surfaces with classical elements accentuated in the wainscoting and crown moldings. This custom home takes full advantage of the picturesque views surrounding the house. Inside, the floors are made of dark stained oak that grounds the white casework and warms the interior to make it feel cozier and less muted. Over time, the firm has created more homes in various styles including the prairie, California mission, Old World, Mediterranean, and contemporary styles. Since the firm has been around for several years, it has many other home styles in its portfolio. 


  • Jake Gustafson

    Jake has served as a brings a wealth of experience rooted in his passion for building. Holding a degree in Construction Engineering Management from Oregon State University, he actively engaged in industry-related activities, including membership in the Associated General Contractors of America student chapter and participation in the Associated Schools in Construction student competition. Previously, Jake served as a project engineer for a prominent general contractor in Portland, where he played a pivotal role in various aspects of construction projects, from pre-construction to subcontractor management. His expertise extends to working on innovative projects, such as North America's largest CLT commercial building. Expertise: Commercial Construction, Commercial Remodeling, Home Design and Build Key Highlights: Editor at HomeBuilderDigest, Project Engineer for Portland-based general contractor, Field Engineer for the largest CLT commercial building in North America Education: Oregon State University - Degree in Construction Engineering Management