From Raw Land to a Home in Costilla County: A Building Timeline

If you are buying raw land to build on someday, it helps to know the order things happen in — because the timeline is longer than most people expect, and a few rules catch buyers by surprise.

Step 1: Confirm what you can build, before you buy. Check zoning and the county's minimum dwelling size rule for the parcel. That rule alone stops some plans — a tiny home or small cabin that is under the minimum will not get approved, no matter how well it is built. Ask the county planning office, in writing if you can, what is allowed on that specific parcel.

Step 2: Get your building permit, and keep it current. Building needs a county building permit. Construction permits renew yearly in Costilla County, so a build that stretches across years needs renewals — plan for that, and do not assume a permit stays open forever.

Step 3: Plan septic early, not last. On-site septic (OWTS) needs its own permit, and the system must be installed and inspected before occupancy. A soil test is part of that process. Septic is often the slowest piece of a rural build, so start it early in your timeline, not after the house is framed.

Step 4: Sort water and power in parallel. There is no municipal water on our parcels — the usual options are a permitted well, a cistern, or hauling (see my water guide for the comparison). Power, where it exists nearby, needs a connection arranged with the local provider; where it does not, plan on solar. Neither of these should be left to move-in week.

Step 5: Build the primary dwelling first. This is the rule that surprises people most: the county does not allow a shed or structure on vacant land before the primary dwelling. Storage comes only once construction documents are submitted and a building permit is opened. If your plan starts with "put a shed up first," check that rule with the county before you count on it.

Step 6: Do not plan a move-in date until permits are in hand. A realistic timeline is: verify zoning and dwelling size, open permits, install and inspect septic, arrange water and power, then build. Rushing any step — especially septic and permits — is how a build stalls. I would rather you buy with a patient timeline than with a date that the county rules will not support.

If you are looking at one of our parcels and want to talk through what building on it would look like, tell me what you plan to build and I will send you the details for that parcel. And as always: check the county's rules for what you want to do, and walk the parcel yourself before you decide.