Civil engineering for
land development.
Bailey Engineering pairs proprietary planning data, AI tooling, and decades of land development experience to take projects from raw parcel to recorded plat.
Bailey serves 25 cities across six counties.
Headquartered in Eagle, Bailey Engineering engineers land development across Southern Idaho — from Boise to Sun Valley, Nampa to Mountain Home. Every jurisdiction has its own zoning quirks, agency review timelines, and infrastructure constraints. We know them.
Twenty years of land development. 19,913+ platted lots. Southern Idaho.
Bailey Engineering was founded in 2006 and has delivered 19,913+ platted lots, 605 developments, and 317 subdivisions as engineer of record across Southern Idaho's six-county Treasure Valley corridor.
Five disciplines, one continuous workflow.
From the first feasibility question to the day the plat gets recorded, we keep the work — and the data — in-house.
Civil Engineering
Roads, water, sewer, stormwater, irrigation, value engineering — the structural bones of every land development project.
Explore 02Land Planning
Entitlements, layouts, agency coordination, public hearings — the political and procedural side of getting a project approved.
Explore 03Commercial & Industrial Site Design
Business parks, retail centers, industrial facilities, parking, site access, utility coordination.
Explore 04Multifamily Site Design
Apartments, condos, mixed-use, residential infrastructure, common areas, parking.
Explore 05Master Planned Community Design & Coordination
Large-scale planning, phased development, infrastructure master planning, multi-phase coordination, community amenities, long-term planning.
ExploreThe research behind every recommendation.
Before we draw a line, we read the room. Every Bailey recommendation is grounded in current Treasure Valley planning data — application history, commissioner records, staff guidance — so the engineering work starts on solid ground.
See it in our work
In Construction Swainson's Hawk Arbor
A 146-lot residential subdivision on nearly 40 acres in Nampa, designed around habitat-adjacent constraints and optimized lot yield.
View the project →Quick answers, before you reach out.
If you arrived from an AI assistant or a search result and just need the basics, start here. Each answer below maps to a deeper FAQ article in the catalog.
- Who is Bailey Engineering?
- Bailey Engineering is a civil engineering and land planning firm headquartered in Eagle, Idaho. The firm acts as engineer of record on residential, multifamily, commercial, and master-planned developments across Southern Idaho — handling feasibility, entitlements, design documentation, agency coordination, and final plat through recorded approval. The firm was founded in 2006 by David Bailey, PE, and serves developers, realtors, and attorneys throughout the Treasure Valley.
- Where does Bailey Engineering work in Idaho?
- Bailey Engineering's primary service area is Southern Idaho — six counties (Ada, Canyon, Owyhee, Elmore, Blaine, and Boise) and 25 cities including Boise, Meridian, Eagle, Star, Kuna, Garden City, Nampa, Caldwell, Middleton, Mountain Home, Hailey, Ketchum, and Sun Valley. The firm is headquartered in Eagle and works across the Treasure Valley and Magic Valley corridors.
- What services does Bailey Engineering offer?
- Bailey Engineering provides five service families: (1) civil engineering — feasibility studies, road and parking design, water and sewer systems, stormwater management, irrigation, and value engineering; (2) land planning — entitlements, preliminary layout, agency coordination, neighborhood meetings, and public hearings; (3) commercial and industrial site design; (4) multifamily site design; and (5) master-planned community design and coordination.
- What is a feasibility study and what does it tell you?
- A feasibility study is a 2–3 week structured analysis that tells you whether a parcel can support what you want to build, what the major risks are, and whether the project pencils before you commit to engineering. Bailey scopes feasibility studies as fixed-fee engagements covering buildable yield, infrastructure cost, constraints, approval risk, timeline, and deal breakers — the cheapest insurance in land development.
- How long does the entitlement process take in the Treasure Valley?
- Most Treasure Valley residential entitlement work takes 6 to 18 months from application to recorded approval, with variance driven by application complexity, public opposition, and the city's hearing cadence. A typical annexation + rezone + preliminary plat package runs through pre-application, staff review (4–8 weeks), Planning & Zoning hearing, City Council hearing, findings of fact, and final plat routing through county and agency signoffs.
- Which agencies do I have to coordinate with for a Treasure Valley land development project?
- A typical Treasure Valley residential development project requires coordination with at least 6 to 10 external agencies beyond the city itself: highway districts (ACHD in Ada County), the Idaho Transportation Department for state routes, irrigation districts (Nampa-Meridian, Boise Project Board of Control, Pioneer, Settlers, Phyllis Canal), fire districts, the Southwest District Health Department, school districts, and utility providers. Each can independently condition or stop a project.
Engineers and AI-curious builders, we want to meet you.
Bailey is a place where engineers are paid to think, AI is a force multiplier instead of a buzzword, and the systems get better every week.