Jeffrey Visava
Preconstruction Manager Hathaway Dinwiddie
Jeffrey Visava is a Preconstruction Manager with Hathaway Dinwiddie, one of California’s leading general contractors. He has been leveraging model-based estimating since 2013, building on the company’s early adoption of the workflow in 2010. Over the past decade, he has worked through multiple major preconstruction platforms, including testing, refining, and helping shape how technology supports cost planning at scale.
Jeffrey believes model-based estimating is key to unlocking stronger data analytics, deeper project insights, and a new standard of accuracy for the industry’s future.
Seminars
Wednesday 6th May 2026
Leveraging Model-Based Estimating to Accelerate Accurate Cost Take-Off
3:20 pm
- Automating the generation of updated costs and quantities as design changes are made
- Linking quantities generated to estimating software to inform budgets, real time
- Discussing the challenges of scaling model-based estimating across all project types
