Portola Valley is one of California’s most peaceful, picturesque cities. As a city that relies on its extensive trails, beautiful and scenic roads, and natural views to keep both visitors and locals in awe of its environment, it’s only natural that the architectural structures only blend in with the city.

Our editorial team decided to list some of the most talented contractors that service the city and contribute to making the lives of local clients more visually attractive and functional through quality craftsmanship and customer service. Aside from carrying years of experience, these firms are also staffed by some of the most skilled craftsmen with backgrounds in various industry disciplines. These are the firms that build some of the most beautiful and functional homes in Portola Valley. 

Allcons Group

21060 Homestead Rd. #103 Cupertino, CA 95014

Allcons Group was established in 2015. With an experienced crew, high technology, and safe, efficient, and reliable building methods, Allcons Group became one of Silicon Valley’s top-rated general contractors. Over the years, the firm has become experienced in various services including the construction of custom homes, home additions, remodeling projects, and overall design.


Currently, the firm is managed by founder Ali Zaghi. Originally an architect, Zaghi discovered his talent for construction and started working with designers, work crews, and clients to provide the best methods for completing projects. 

BW Construction

110 Russell Ave, Portola Valley, CA 94028

Established in 1976, BW Construction specializes in residential remodeling for homes in the mid and south Peninsula. Over the years, its skills in residential remodeling have come to include room additions and interior remodels. Combining its years of experience and wide array of home building services, BW Construction has built up a list of repeat clients and referral clients who experienced the firm’s quality customer service.


In order to keep up this quality service, company founder Bruce Williard intentionally keeps the firm small to maintain quality remodeling standards. Aside from this high attention to quality, the firm also has a crew and subcontractors known for working well with clients and providing them with the quality customer service BW Construction is known for. 

Geoff Okarma Construction

5020 Alpine Rd., Portola Valley, CA 94028

Geoff Okarma Construction has been in the construction industry for a strong 15 years. During that time the highly skilled team has provided a range of general construction services. To this day, the firm is known for providing residential remodels, custom homes, and commercial construction. Adding to its general construction capabilities, Geoff Okarma Construction is a LEED accredited business and applies green building practices to all its projects by implementing a construction management process that helps reduce waste, energy consumption, and pollution. 


This eco-friendly process is guided by company principal Geoff Okarma who has worked as a carpenter, project engineer, and project manager for four construction firms in Sacramento and the Greater Bay area. During that time, Okarma was able to manage several high-profile projects for successful local construction companies. These projects include public works in school districts, municipal buildings, private sector work in hotels, hospitals, office buildings, and retail centers. Aside from these high-profile projects, Okrama has also completed two large projects LEED-certified by the U.S. Green Building Council (USGBC).

Hunner Associates

1247 Los Trancos Rd., Portola Valley, CA 94028

42 years in the construction industry has moved Hunner Associates firmly into the category of highly trusted contractors. Since its establishment, clients from the San Francisco Mid-Peninsula area have been privy to its striking residential and commercial tenant improvement projects. Though the firm is staffed by skilled contractors, it specializes in providing new and residential remodels. So far, this brand of work has brought Hunner Associates many repeat clients, designers, and engineers that have helped the firm create some of the most beautiful homes.


One of these is the Maywood house which was inspired by the homeowner’s fascination for 1950’s Californian contemporary homes which feature wide and open interior space—the kind of space that welcomes the outdoors inside through large expanses of glass and spacious floor plans. The home has several other distinctive features but its most notable might be the full height brick masonry wall dominating the living room. Earth colored, this wall of oversized brick carries a stacked bond pattern.

Portola Valley Builders 

Craftsman, ranch, contemporary, and Spanish styles: Portola Valley Builders has built up enough experience to craft beautiful and functional homes that are unique in style. That 50 years of experience spans general contracting, green building, design-building, consulting, and project management.

And that experience has helped the team effectively work with its clients to produce high-quality custom homes that remain on-schedule and on-budget. The firm’s consistent approach and impressive expertise have brought the firm a long line of clients in the form of referrals from around the entire Bay Area.

The Design Build Co.

3554 Round Barn Blvd. Suite #205, Santa Rosa, CA 95403

The Design Build Co. functions on the fundamental basis of balance in diversity. As a firm that has been around for over a century, The Design Build Co. is filled with a uniquely qualified group of professionals who have backgrounds in various disciplines.


Some are experienced in schedule management and the ability to efficiently execute construction projects that include semi-custom residential homes and commercial buildings. Others previously worked for the high-end multi-million dollar home sector. Thanks to this staff of experts, the firm now has a portfolio of homes that take on various styles from the modern to the modern farmhouse, transitional, and modern prairie.

Timeline Design + Build

14401 Big Basin Way, Saratoga, CA 95070

For more than 30 years, Timeline Design + Build has been designing and building homes for clients around Los Altos, Menlo Park, Portola Valley, Woodside, and Saratoga. Timeline’s vision is to be “The most trusted builder in Silicon Valley,” with the mission of “on time, on budget, and highest quality.” Their team of in-house architects, designers, craftsmen and estimators seamlessly collaborating to create outstanding home designs, detailed and accurate plans and specifications. The firm’s model of having a world class team all under one roof appeals to busy Silicon Valley executives, engineers, tech workers, and venture capitalists.

One project that best exudes Timeline Design + Build’s skill is the custom modern farmhouse in Portola Valley. A charming 5,000+-square-foot traditional style home, it has a design embracing classical simplicity and brightness through sweeping windows and sliding glass doors that bring in natural light from the outdoors. Timeline Design+Build has been featured in publications such as Punch, Home & Garden, Gentry, and Luxe Magazine, as well as winning both regional and national design awards over the years.

Wilkinson Construction

206 14th Avenue San Mateo, CA 94402

From the Peninsula on Hillsborough, Atherton, Portola Valley, Stanford Campus, Los Altos Hills, Burlingame, and the Bay Area Peninsula, Wilkinson Construction has awed clients with the many homes it has built over the years. Established in 1990, Wilkinson Construction is a full-service construction company with expertise in providing project management, coordination, and quality control.


With its team’s precise control over project management, Wilkinson Construction has been able to expand its services from new home construction to full-scale remodeling and home addition projects that vary in style. Those styles include the modern, Craftsman, and colonial revival.