Hathaway Dinwiddie’s leadership in the construction industry is built upon the skilled professionalism and dedication of our employees, and the integrity of our client relationships. This foundation has fostered a culture that incorporates client focus, innovative thinking, proactivity and teamwork to deliver superior services.

Experience That Breeds Confidence


In 2006 Hathaway Dinwiddie transitioned company-wide to a model-based estimating workflow to improve transparency and substantially enhance the accuracy of our estimates. Deployed as standard practice during the estimating process, from partial floor tenant improvement projects to large-scale multi-building campus developments, our in-house estimators create Revit models to derive the quantities upon which they build their estimates, provide visual backup to project stakeholders, and serve as a permanent asset over the course of the project’s lifespan in estimation.


Quality starts with our people and the dedicated resources made available on a daily basis, from preconstruction through construction. Quality is about the dedication of individual team members, who take the time to assure that every detail is reviewed. Beginning in the preconstruction phase, our experienced team performs constructability reviews and uses BIM tools to analyze all systems and details. This ensures that final fit and finish exceeds architect and owner expectations. We study options for materials, details, phasing and sequencing to maximize overall value. To monitor and improve the finished product, we employ rigorous quality at the source measures. In short, our team leaves no detail unchecked to ensure the best possible results.



We believe design-build success begins with mutual respect for all team members. We foster a work environment that simplifies both free-form and structured information exchange between all participants. Hathaway Dinwiddie design-build professionals are experts in their field, who partner with owners and manage all aspects of the project, from architecture and engineering to the design and installation of the trades. Our design-build engagements cover entire construction projects or specialty components, such as trade management, MEP, drywall, grade shoring systems, curtainwall, exterior framing, fireplaces, pool design and more.

General Construction

Hathaway Dinwiddie is a Builder. We provide general contracting and complete project planning and management services in California’s most dynamic markets. For over a century, we’ve helped the nation’s premier companies and institutions develop landmark structures and quality interior spaces. With a tradition of innovation and superior project delivery, we are a leader in the construction of large-scale, commercial and institutional projects, tenant improvements and historic renovations. Our experienced field staff and labor forces create options in the performance of direct work. We specialize in a variety of project delivery methods, from the traditional plans and specs approach to full service program management and design-build. Our vast project portfolio covers everything from 1,000+-square-foot interior buildouts and renovations to 1,000,000+-square-foot ground-up, core-shell structures.


Our advanced preconstruction services utilize the most progressive techniques and technologies like Revit, Bluebeam and Assemble. Our team is composed of individuals who possess the necessary experience and capabilities to successfully deliver projects to our clients, while working in alignment with the Hathaway Dinwiddie project teams that are on-site. Our coworker relationships are based upon open communication and mutual trust. In doing so, we quickly gain a thorough understanding of project goals, interrelationships, responsibilities, schedules, budgets, protocols and accountabilities in order to ensure predictable and effective project delivery.

Construction Management

Hathaway Dinwiddie project managers see the big picture and the minute details. We help clarify overall goals before design time is invested, and stay highly engaged through project completion. We recommend the best delivery process and then coordinate and track all resources to achieve scheduling milestones. Experts in planning and time management, we build project plans that incorporate conceptual and detailed estimating, budget tracking, sub-contractor identification and construction scheduling. Every component of our management process is built around project delivery that is safe, timely, cost-efficient and of premium quality.

Tenant Improvement

While primarily known for construction of larger projects, Hathaway Dinwiddie is also one of the most active interior and renovation contractors in California. On average, we complete over one hundred million dollars’ worth of interior construction per year. Regardless of project size, we approach each with the same level of detail and collaboration. Our interiors group is highly specialized and understands the challenges inherent in this type of construction. Occupied buildings, tight budgets, fast track schedules and quality workmanship are our strengths. Projects range from small remodel work to large buildouts in both core-shell space and occupied buildings.