Building a custom home in Vail
Vail draws people who want room: larger lots toward the Rincons, space for a shop or a casita, and quieter streets. Most of Vail is unincorporated Pima County, so your permit comes from Pima County Development Services. Building on a rural lot brings steps that an in-town lot doesn't, like a septic system, sometimes a well, and floodplain checks. Knowing them before you buy or design saves money.
The county permit
Pima County takes building permits and site development submittals electronically, and lists custom homes as their own permit type on its building and site development page. For a single-family home, the county's final inspection approval serves as the certificate of occupancy. A separate certificate isn't issued. We prepare the submittal, answer review comments and schedule the inspections.
Septic
Many Vail lots aren't on sewer. A new home on septic needs a Construction Authorization from Pima County before the system is built, and a Discharge Authorization after the final field inspection before it can be used. A site investigation decides whether a conventional or an alternative system is needed. That choice affects budget and where the house can sit, so it belongs at the start of planning. The septic area also limits where a pool, a shop or a future guest house can go later, so we lay all of those out on the site plan together.
Wells
Some rural Vail parcels rely on a private well. Drilling, deepening or modifying a well needs a Notice of Intent to Drill filed with the Arizona Department of Water Resources, and the work must be done by a licensed well-drilling contractor. Domestic wells are generally exempt wells, equipped to pump 35 gallons per minute or less. If you're buying land, find out whether there is water service, an existing well or neither.
Before you buy a lot: ask about sewer or septic, water source, washes and access. These four answers move a rural build's budget more than almost anything in the house itself.
Washes, native plants and slope
- Floodplains. Nearly any structure in a regulatory floodplain or erosion hazard area needs a Floodplain Use Permit from the county before construction.
- Native plants. The county's native plant preservation rules apply once grading reaches 14,000 sq ft or a grading plan is required. A new home with a long driveway on a large lot can reach that, which means a plant inventory and preservation plan.
- Hillsides. On steeper lots near the Rincons, the hillside chapter applies to slopes of 15% or more over a set length and height, and favors minimal grading.
- Caliche. Common across Vail, it can slow excavation and affect footing design.
Access, power and outbuildings
On a rural parcel, getting to the house is part of the build. A long driveway needs a base that holds up to monsoon runoff and construction traffic, and any crossing of a wash needs thought before the floodplain review. Power may have to be extended from the road, and the cost of that run depends on distance and the utility's requirements. Many Vail owners also want a shop, an RV garage or a guest house. Planning those with the home lets the pad, utilities and driveway serve everything at once instead of being dug up again later.
How we build your Vail home
- Consultation and site walk. Lot, access, slope, washes, septic and water.
- Plans review. We review your drawings or talk through design next steps.
- Written estimate. A clear scope, including site work and utilities.
- Approvals. Building permit plus septic, floodplain and any well steps.
- Build. Our own crew does the framing, structural work, stucco and roofing, with one licensed contractor (AZ ROC #344537) in charge.
- Inspections and handover. Final county inspection and a walk-through with you.
Want a guest house too? See our Vail casita page. For budgets, read the custom home cost guide and our custom home building process. More local work is on our Vail contractor page.