All-in$0± range
Johnson County, Texas · real 2026 data

How much does a barndominium cost in Johnson County?

A typical build is below — tap to make it yours
✓ Add a shop / garage (the barndo classic)
All-in · build + land + utilities + soft costs
$0
$436,476 — $819,060 range
For a 3 bed / 2 bath barndo in Johnson County · ≈ $296/sf
Rough estimate · we'll sharpen it
Build $302k 51%
Land $165k 28%
Site & utilities $73k 12%
Soft costs $6k 1%
Buffer $46k 8%
The steel kit + slab is only ~9% of your all-in — the rest is land, site work, utilities & finish. That gap is what blindsides people.
≈ 14% less ($98k saved) than the same home built traditional (~$689k)
Modeled from Johnson County records + real owner build reports · updated 2026-06 · shown as low–median–high ranges, never a blind average.
$0 building permitno zoningcounty development permit
A few quick questions — we handle the rest
Do you have land yet?
Roughly where in Johnson County?
How much land?
What are you picturing?
tile/LVP, mid-grade cabinets, a few custom touches — finish swings this build ~$150k from basic to high-end. It's where budgets quietly blow up.
Water
Sewer
Electric
Insulation
Contingency buffer
Your itemized all-in — exactly where every dollar goes
Know a real figure for any line — a well quote, your land price? Type it in the box and that line locks to your cost.
The build
Kit shell + slab
2,000 sf shell · $22–$38/sf · incl. engineered slab for clay
$56,000$44,000–$76,000
Interior build-out
2,000 sf living · nice finish · $95–$150/sf
$240,000$190,000–$300,000
Insulation — spray foam
Closed-cell foam — owners' #1 'don't skimp' item (it sets your power bill)
$6,000$4,000–$9,000
The land
Land
~3 ac near the Cleburne area · $38k–$85k/ac
$165,000$114,000–$255,000
Site & utilities
Site prep
Clearing, grading, driveway, building pad
$22,000$15,000–$35,000
Water — drill a well
No city water at most the Cleburne area lots. Trinity, 350–550 ft.
$25,000$15,000–$35,000
Septic — aerobic
Clay soil needs aerobic. Incl. $425 county permit.
$19,425$14,425–$26,425
Electric service
Power's typically at the road here
$1,500$500–$4,000
Propane tank & line
No natural gas — propane
$2,000$700–$4,000
Water softener
Trinity well water is hard
$2,800$1,500–$4,000
Soft costs & permits
Plans & engineering
Design + engineered-slab stamp
$4,500$2,000–$8,000
Land survey
Required for septic, lender & build
$900$500–$1,500
Soil & perc test
Before septic design
$500$300–$700
Building permit
$0 — Johnson County requires none
$0
Buffer & financing
Contingency (12%)
Cushion on build & site — every real build needs one
$45,675$34,551–$60,435
All-in (median)$591,300
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Most “barndominium cost” pages give you a vague $/sq ft and a quote button. This one gives you a real, itemized all-in number for building in Johnson County, Texas — including the lines nobody else accounts for: a 350–550 ft Trinity well and its $500 Prairielands district registration, the aerobic septic the eastern blackland clay usually forces, the county Development Permit step, running power to a rural lot, the survey, plans and engineering, propane, and a contingency buffer. Tell us about you and your land in plain English; we translate it into Johnson County costs.

What's actually under a Johnson County barndo

CLAY SOIL — DOESN'T DRAINTRINITY AQUIFER · ~350–550 FT DOWNENGINEERED SLAB1234
  1. Drilled well — Trinity aquifer, 350–550 ft down · $15k–$35k
  2. Aerobic septic — the clay won't perc, so it's required · $14k–$26k + $425 permit
  3. Power from the road — $1k–$4k (much more on a long rural run)
  4. Engineered slab — clay soil demands it, baked into the build
Not to scale — a 550-ft well is deeper than this whole page. That's the point: your number includes what's under the dirt, not just the building.

How we calculate this

  1. You pick a build (by bedrooms or by size) and tell us about your land in plain English — where, how big, what finish.
  2. We translate that into real Johnson County costs: Trinity-aquifer well depth, the septic type the soil forces, permit rules, and how far power has to run.
  3. Every line shows a low–median–high range, not a blind average, so outliers don't distort your number.
  4. Know a real figure (a well quote, your land price)? Enter it and that line locks to your actual cost — the estimate converges on reality.

Frequently asked: barndominiums in Johnson County

Do you need a building permit for a barndominium in Johnson County?
No building code, inspections, or certificate of occupancy in the unincorporated county — but Johnson does require a county Development Permit from Public Works before new development, covering the floodplain check, 911 addressing, and septic coordination. Add the OSSF permit ($375 conventional / $475 aerobic, with a recorded affidavit and maintenance contract for aerobic) and a culvert permit (about $25/ft) for county-road access. Since the county inspects nothing, your lender and insurer will likely want third-party inspections.
How deep are wells in Johnson County and what do they cost?
The Trinity's Twin Mountains zone is the main producer at roughly 350–550 ft — expect drillers to quote that even if a neighbor's 1990s well is shallower, because levels are declining. A complete turnkey well typically runs $15,000–$35,000; the shallower Paluxy zone toward the Parker County line can come in around $9,000–$16,000. Every new well must be registered with Prairielands GCD ($500 application), and wells drilled since 2017 need a 2-acre minimum tract plus spacing compliance.
Conventional or aerobic septic in Johnson County?
Usually aerobic, and it's pricier here than in counties west. The eastern half sits on Blackland Prairie expansive clay that rarely percs (plan on a post-tension slab too); toward Godley and Glen Rose it's shallow soil over limestone, which also pushes designs to aerobic or non-standard drainfields. Figure $14,000–$26,000 aerobic versus $8,000–$18,000 conventional where soil allows. Single-family tracts of 10+ acres with everything 100+ ft inside the property lines can skip the permit under the state exemption.
Is Johnson County a cheap place to build a barndo?
The build itself prices like the rest of the Fort Worth-south market, and contractor competition around Cleburne keeps shells honest. The swing is land: the Chisholm Trail Parkway put Godley, Joshua, and north Cleburne within ~30 minutes of downtown Fort Worth, so the Burleson edge runs well over $100,000/acre for small lots while Grandview and the far south still trade near $20,000–$30,000/acre. Go south for cheap dirt, north for the commute.

What this estimate does not include

Where these numbers come from

These costs are modeled from public Johnson County records and real, published build-cost reports from owners and builders — shown as low–median–high ranges, never a blind average, and updated 2026-06. Sources: Johnson County Public Works OSSF permit packet + development services; Prairielands Groundwater Conservation District (registration rules, fees); LandWatch / Land.com / LandSearch active land listings by acreage band; Published Cleburne-area builder pricing & owner build reports. Note: Texas is a non-disclosure state, so true land sale prices aren't public — land figures are modeled from active listings by acreage band, which is exactly why entering your own parcel price gives the most accurate result.