Intelligence-driven civil engineering, since 2006.
This page is a summary of 20 years of land development work across Southern Idaho. The numbers are pulled from Bailey's active project tracker, refreshed quarterly.
The work, in numbers.
Bailey Engineering has engineered land development across Southern Idaho for 20 years. The numbers below come from our active project tracker.
Individually platted residential and commercial lots, from our first subdivision in 2006 through the most recent plat filed this quarter.
Private land developments where Bailey served as engineer of record.
Formal subdivisions recorded with Bailey's PE stamp. Our core practice.
Projects where Bailey provided land surveying in addition to engineering services.
Lots currently moving through preliminary or final plat review across Bailey's active project tracker. Snapshot as of April 2026.
Private developments where Bailey is currently the engineer of record — from raw parcel to recorded plat.
Ada, Canyon, Boise, Elmore, Owyhee, and Blaine. Additional historical work across Valley, Payette, and Gem counties.
From Boise to Sun Valley, Nampa to Mountain Home.
Stats refreshed quarterly from Bailey's project records. Last refresh: April 2026.
Twenty years in Eagle, Idaho.
Bailey Engineering was founded in 2006 by David Bailey, a Professional Engineer based in Eagle, Idaho. What started as a one-person civil engineering practice grew alongside the Treasure Valley itself — from early subdivisions in Meridian and Nampa through the 2008 recession, into the commercial and residential expansion that followed, and now into the intelligence-driven era where AI tooling and proprietary parcel data make civil engineering faster and more accurate.
In 2026, after two decades of building the firm, David transitioned Bailey Engineering to new ownership led by CEO Shane Leavitt. Kelli Black serves as Chief Operating Officer. Jonah Duncan leads engineering as Chief Engineer. David remains on the team as Professional Engineer, continuing to stamp plans and mentor the next generation of engineers. The firm's core practice — subdivision infrastructure, commercial site development, water and wastewater systems, municipal planning — stayed constant through the transition.
Where we work.
Bailey's primary service area covers six counties in Southern Idaho's Treasure Valley and surrounding region. Within that footprint, our work concentrates where the growth is — Ada and Canyon counties together account for nearly 90% of our recent project volume.
In Ada County: 3,992 acres across 202 projects since 2019.
In Canyon County: 2,885 acres across 167 projects since 2019.
In Elmore County: 152 acres across 13 projects since 2019.
In Boise County: 258 acres across 2 projects since 2019.
In Owyhee County: 35 acres across 1 projects since 2019.
Additional historical work in Blaine, Gem, Payette, and Valley counties.
The network we work in.
Civil engineering in Idaho is a relationship business. Jurisdictions, irrigation districts, highway districts, and surveyors each have their own processes and preferences. Twenty years of projects in the Treasure Valley means we know most of them by name.
Events from Bailey's project records, covering 2019 forward. Counts reflect documented interactions — applications, reviews, meetings, correspondence — not the full depth of any single relationship.
What we do.
Four core practice areas, all in service of moving land from raw parcel to recorded plat.
Subdivision infrastructure
Grading, drainage, utilities, streets. From early site analysis through PE-stamped construction documents.
Civil engineering services →Commercial site development
Civil engineering for commercial, retail, industrial, and mixed-use projects.
Commercial services →Water and wastewater systems
Water main and sewer design, lift stations, pump systems, coordination with municipal utilities.
All services →Municipal planning
Entitlements, agency coordination, neighborhood meetings, and public hearings across Southern Idaho.
Land planning services →The team.
Bailey Engineering operates as a 14-person team out of our Eagle, Idaho office. The leadership team:
- Shane Leavitt — Chief Executive Officer
- Kelli Black — Chief Operating Officer
- Jonah Duncan — Chief Engineer
See the full team for our engineers, project managers, and support staff.
Work with Bailey.
Bailey Engineering takes projects across Southern Idaho — from subdivision land development for private clients to municipal infrastructure work for cities and counties. If you're planning land development in our service area, we'd like to talk.
The quickest way to start is to reach out with a site address or parcel ID. We can usually tell you the zoning, entitlement status, and applicable review process within a business day.