In this guide
Mount Blanca is 14,345 feet and you can see it from almost anywhere on this subdivision. That is the pitch, and it is a good one. Five acres with a view of the fourth-highest peak in Colorado, for less than a used car.
What the listings do not tell you is the order in which things have to happen out here. Septic before building permit. Building permit before you can legally sleep in your camper. A well permit that comes with a flow meter. Fourteen days of camping, and then you are done for three months.
Off-gridder, retiree, elk hunter, fella who wants a cabin at eight thousand feet and no neighbors within shouting distance? Y'all are in the right place. Here is the honest version, including the parts I got wrong before.
Where it is and what you are buying
Malcolm Forbes bought the Trinchera and Blanca ranches in 1969 and began subdividing in 1971, selling lots until around 2000. What came out of it is enormous. Sources put the subdivision anywhere from 56,000 to 66,000 acres across somewhere between 7,700 and 9,000 lots, and they do not agree, so treat any precise acreage you read with suspicion, including one I used to publish.
It starts about a mile east of Fort Garland and runs roughly twelve miles east along US 160 and about the same distance south along Colorado 159. So it is not seven miles from anything. One corner of it is close to town and another corner is a long gravel drive away, and which one your lot sits in matters more than the subdivision name.
Most lots on the market are around five acres, with some running to ten or twenty. That is a platting characteristic rather than a rule. Costilla County's own minimum lot size is far smaller, 7,000 square feet for lots created after 2013.
Fort Garland has a gas station, a post office, a grocery store and a few restaurants. Alamosa is twenty-five miles west of Fort Garland and has the hospital, the college and everything else.
What you can build
Two sets of rules apply and they are not the same. The recorded covenants require a one-story dwelling of at least 600 square feet of habitable floor space and a two-story of at least 800. Ancillary buildings carry no minimum dimensions. Costilla County, separately, sets a flat 600 square foot minimum for any single-family dwelling with no two-story distinction. Take whichever is stricter for your lot.
Manufactured homes are fine if they were built in 1976 or later. The county prohibits mobile homes manufactured before 1976 anywhere in the unincorporated county, and a manufactured home permit runs $300 for a single-wide and $350 for a double-wide or larger.
The sequence is the part people get wrong, and the county publishes it plainly. An onsite wastewater permit comes first. The construction permit will not issue until you have it, and the county may require the system installed. Electrical, plumbing and the well are separate permits. Then a final inspection, then an occupancy permit. Permits expire 365 days from issue with no extensions, and they are paid in full upfront.
| Permit | Fee |
|---|---|
| New onsite wastewater system (OWTS) | $500 |
| Residential construction, up to 600 sq ft | $300 |
| Residential construction, 1,001 to 1,500 sq ft | $450 |
| Manufactured home, single-wide | $300 |
| Temporary RV occupancy during construction | $350 |
| Occupancy permit | $300 |
The septic side is stricter here than the state. Costilla requires a tank of at least 1,250 gallons where Colorado's rule calls for 1,000 on a two or three bedroom house. Systems are not allowed on platted lots under an acre, and composting or incinerating toilets are prohibited where a conforming system will fit. Our general septic guide covers how the system types differ, and the county's Planning and Zoning office is at 719-937-7668.
Camping and RVs: the fourteen-day rule
Here is what the code actually says. Use of a recreational vehicle or other camping shelter for longer than a total of fourteen days during any consecutive three months on the same parcel is prohibited. No permit needed inside that window, and no fee. Fourteen days, then three months.
The one way to stay longer is the Temporary RV Occupancy During Home Construction permit, and the gate on it is real. You need an active construction permit for a new residence, which means you already have the septic permit. You need the RV hooked to an approved onsite system, a permitted well or an installed cistern, no outstanding code violations, compliance with the covenants, proof of ownership, one RV per parcel, visible progress toward completion, nothing attached to the RV, and a pre-approval inspection of its plumbing and electrical.
It costs $350, runs ninety days at a time, must be renewed before it expires, and the county writes the ceiling in capital letters: temporary RV occupancy shall not exceed eighteen months, and under no circumstances is an RV to be used as a permanent dwelling.
Which means the plan a lot of people arrive with, park the camper and take a few years about the house, does not work here. You can own the land as long as you like. You just cannot live on it until there is a house going up.
Water, and the augmentation plan that makes it work
Start with the good news, because it is genuinely good and almost nobody selling land out here explains it.
The San Luis Valley is in Water Division 3, the Rio Grande, and it is over-appropriated. Under normal Colorado rules a five-acre lot inside a subdivision in an over-appropriated basin would be limited to household use with no outdoor use at all, if a permit issued at all. What changes that here is a decreed augmentation plan from a 1973 water court case, and every recent well permit in this subdivision cites it.
The result is that new domestic wells are still being permitted. Seventeen domestic permits were issued on parcels in this subdivision in 2026 alone, the most recent on September 21. That is not a historical footnote, it is three days before I wrote this.
Now the conditions, because they are specific. The permits carry a cap of one acre-foot a year, a maximum of 15 gallons per minute, and a required totalizing flow meter with annual records going to the Division Engineer. The one permit I was able to read in full states that the water is limited to ordinary household purposes inside one single family dwelling and shall not be used outside the house for any purpose.
Two permit shapes exist here and the difference is the whole question. A household-use-only permit is exactly that: indoor use in one dwelling, nothing outside. A domestic permit is broader and typically covers the house plus household-scale outdoor use, a garden and a few animals. Which one you hold is written on your own permit, not inferred from a neighbor's. Recent permits on parcels in this subdivision are being issued as Domestic. The older one I was able to read in full was household-use-only and prohibited outdoor use entirely, so do not assume they are the same.
Where it genuinely changes is scale. Irrigating acreage, or watering livestock as a working operation rather than a few head, is a different level of water right and a separate conversation. If that is the plan, settle it before you buy. Costilla County Land Use at 719-937-7668 and the Division of Water Resources Division 3 office in Alamosa at 719-589-6683 will both tell you what a specific parcel can get.
On depth, I pulled the state well database rather than repeat the usual anecdote. Across 299 wells recorded on parcels in this subdivision, depths run from 40 feet to 893. The median is 257 feet and the mean 270, with three quarters of them between 150 and 400. So budget around 250 feet and know that a few people have gone past 600.
257 ft
Median well depth
Across 299 recorded wells
1 acre-ft
Annual permit cap
With a required flow meter
15 GPM
Maximum pumping rate
Under the augmentation plan
Drilling is not cheap and it is not guaranteed. Reporting from last year put a well in this valley around $25,000 with no guarantee of success, and a local survey earlier this year had drilling at $28 to $62 a foot. A lot of people out here run a cistern instead and haul.
Which brings up something that happened recently and matters if hauling is your plan. Fort Garland sells bulk water at ten cents a gallon. In August 2025 the water district voted to stop selling to residents outside town limits after its pump failed, cutting off cistern-dependent households across this subdivision with no notice. It reinstated sales the following month, at the same price, with a waiver releasing the district from liability once the water leaves the station. Hauled water is available. It is not free, and it has been switched off once inside the last fourteen months.
Power, propane and getting online
Xcel Energy serves this area, not San Luis Valley REC. I checked the state's utility service territory map at five points across the subdivision and every one came back Xcel. The REC serves southern Costilla County around San Luis, which is where the confusion comes from.
There is no published per-foot line extension rate, whatever you read. Xcel prices extensions on standardized charges plus a construction allowance and estimates anything non-standard case by case, and a remote lot out here is non-standard by definition. Most of this subdivision runs on solar, and our piece on whether solar is worth it off grid covers the sizing. Our rundown of what utilities actually cost on rural land covers the rest.
Propane does the heating, cooking and often the refrigeration, delivered by local vendors. Plenty of people burn wood as the primary heat.
For internet, Blanca Telephone now trades as Blanca Networks and its sister company Jade serves Alamosa. Blanca offers fiber in and around Fort Garland, running roughly $63 a month for 125 megabits up to $135 for two gigabits. Those are town-centered footprints, so check your specific parcel rather than assuming the subdivision is covered.
Hunting, and what a tag actually costs
This subdivision sits in Game Management Unit 83, which covers Alamosa, Costilla and Huerfano counties. One caution: unit 83's northern boundary is US 160, and the subdivision straddles that highway, so confirm your specific parcel on the Colorado Parks and Wildlife hunting atlas rather than trusting a single unit number across sixty thousand acres.
Correcting something the earlier version had wrong: rifle elk in unit 83 is not over the counter. Every rifle elk code there is a limited draw code, and they are either-sex rather than bull-only. If you are counting on walking into a license, you will not be. Our guide to what makes a great hunting property gets into how to read a unit before you buy into one.
Current 2026 license fees, since the numbers in the old version were years stale. A resident adult elk license is $70.40 and a resident youth $20.30. A nonresident adult runs $845.16 and a nonresident youth $130.07. The old article said $554 for a nonresident adult, which understated it by better than half.
Shooting across roads and within a quarter mile of an occupied residence is prohibited, which in a subdivision with thousands of platted lots is worth thinking about before you plan a hunt from your own ground.
Weather at eight thousand feet
Fort Garland averages about 285 sunny days and 44 inches of snow a year against eleven inches of rain. Average July high is right around 80 degrees. Average January low is about 8, and the subdivision sits higher than town, so colder.
An earlier version of this article said temperatures range 30 to 80. That is wrong in the direction that matters. If you are planning to camp your fourteen days or build through a shoulder season, plan for single digits and a monsoon pattern that moves up from Arizona in July and August.
Taxes, covenants and the association
Colorado taxes actual value times an assessment rate times the mill levy. The assessment rate is where vacant land gets you: 26 percent for 2026, against about 6.8 percent for a residence. So an empty lot is taxed on better than three times the share of its value that a house would be.
The Fort Garland tax districts that cover this subdivision run roughly 78 to 87 mills. Worked out, a lot with an actual value of $15,000 assesses at $3,900 and comes to somewhere around $320 a year. Run it on a real assessed value before you budget from it.
The covenants are short and worth reading before you buy. Household pets are allowed. Horses, cows and poultry may be kept only with the prior written permission of the Declarant. Here is the wrinkle nobody mentions: the Declarant was the Forbes selling entity, which wound up around 2000. There is, practically speaking, nobody left to grant that permission and nobody enforcing it. That is not the same as the covenant being void, and I would not build a horse operation on the assumption.
The Sangre de Cristo Ranch Owners association is not an HOA. Its own site says so directly: membership is absolutely voluntary, it is not an HOA or POA, and owners are not required to join or pay dues. Dues are $25 a year per family or lot, and what you get is voting, the newsletter, community events and Dumpster Days. Join it if you want to know your neighbors. Nobody will bill you if you do not.
What I would check before I bought one
Four things, in this order. Pull the well permit records for the lots around yours and see what people actually hit. Read the outdoor-use condition on the permit for your own parcel, and call Division 3 if you are planning past household scale. Confirm which side of US 160 your parcel sits on for the elk unit. And read the plat filing's covenants rather than a summary, because this subdivision has sixty-odd filings and they are not identical.
If it checks out, owner-financed land in Colorado is how most people out here get started, and the off-grid land page is sorted for the ones who mean to run on solar and a cistern. The approval mechanics are in our piece on buying land with no credit check.
Blanca has been standing there since before any of this was platted and it will be there long after the paperwork is settled. The mountain is the easy part. Everything else out here is a sequence, and the sequence rewards the people who learn it first.
