How Long Does It Take to Build a Barndominium in Texas?

No Texas authority publishes a total build duration for a house of any kind, the Census has no barndominium category to sample, and the month counts that circulate on national sites are somebody's averaged impression rather than a measurement. What Texas jurisdictions do publish, in their own ordinances and on their own permit pages, are the individual clocks: how long plan review takes, how long a permit stays alive, how long an inspection request waits, how long a utility takes to set a meter. Those are checkable, and this page names the jurisdiction against every one of them. On a rural Texas barndominium the construction is usually not the critical path — the sequence that has to happen before construction is, and that sequence is not the same in two adjacent counties. Liberty County will not issue a building permit until a septic permit exists. Burnet County will not issue a septic permit until a building permit exists. Both statements come from the counties' own published guidance. A schedule built on the wrong order does not slip by a week; it stops.

Figures below are industry data from cited third-party sources, not a quote from Texas Barndominium Builders. Every project is priced individually.

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Bottom line up front

There is no general Texas permit-review deadline. The two 45-day rules in statute are a county provision reaching Harris County alone and a separate municipal one — merged, they produce a rule that is wrong in both directions.
Review targets are whatever the individual city publishes: Austin and Temple 10 business days, Round Rock 30 business days, Killeen 45 calendar days written into the ordinance, while Waco, Bryan and College Station publish no turnaround at all.
The pre-construction sequence, not the construction, is usually the critical path — and it reverses between adjacent counties. Liberty County will not issue a building permit until a septic permit exists; Burnet County will not issue a septic permit until a building permit exists.

The plan-review clocks Texas cities actually publish

Five of the cities researched put a number on residential review in their own ordinance or on their own permit page. Three publish none at all — and for one of those, the figure circulating online is not the city's.

Austin — 10 business days for new construction

Austin Development Services publishes a review time per project type. From 1 July 2026 the department reduced several of them, and new construction and additions sit at 10 business days, with demolition, fence, garage conversion, interior remodel, minor revision, relocation and pool reviews at 5 business days and update submittals at 7. Express review is typically same day. Those are the city's own published targets on an accepted application, not guarantees, and they are the front half of the schedule only. See Austin.

Temple — 10 business days, and the clock starts on payment

Temple's permit page states that after a permit is paid, the city has ten business days to review and make comments before a permit can be issued. The trigger is the part worth planning around: the clock runs from payment, not from submission, so a set that sits unpaid is a set that has not started. Temple also schedules an inspection requested before 4:00 p.m. for the next business day, and one requested after 4:00 p.m. for the second business day. See Temple.

Killeen — 45 calendar days, written into the ordinance

Killeen § 8-26(a) provides that construction permit applications "shall be reviewed and either approved or disapproved within forty-five (45) calendar days from the date submitted," with the building inspections division required to give written notice and reasons where it cannot grant the application. Note the unit. Calendar days and business days are not interchangeable, and a 45-calendar-day ordinance clock and a 30-business-day city target land closer together than the raw numbers suggest. See Killeen.

Round Rock — 30 business days, and no expedited option

Round Rock's new residential single-family construction page states that "the review process for your project will take approximately 30 business days from the date your application is received and accepted. Expedited review is not available," and repeats that "an expedited review service is not available, and no additional fees will be added to the permit fee." Round Rock also runs what it calls a one-permit system: the general contractor and every subcontractor must accept assignment in the portal before a permit issues, which is a sequencing dependency rather than a review one. See Round Rock.

Dallas — 10 business days for completeness, which is a different thing

Dallas Chapter 52, § 302.1.1 has the building official review an application "within 10 business days of receipt to determine completeness." § 302.1.1.2 reviews applications in the order they are received, and an applicant who answers an incompleteness notice within 10 business days "maintains its place in order of review"; § 302.1.1.1 voids an application that has not supplied requested information by the 45th day after filing. A completeness check is not a plan review, and reading the first as the second is the commonest way to under-plan a Dallas schedule. See Dallas.

Waco, Bryan and College Station publish no review turnaround at all

Waco's Inspection Services pages — registering and applying, residential construction permits, submission checklists, inspection procedures and fee schedules — carry no plan-review turnaround in calendar or business days anywhere. Waco Inspection Services answers that question on (254) 750-5612. Bryan publishes none either. College Station publishes none, and the "5–10 business days" figure that circulates for it is third-party permit-expediter content rather than the city's own statement; College Station takes the question on 979.764.3570. Establishing the number by telephone is the correct move, and it is a better basis for a schedule than a figure the city never wrote. See Waco, Bryan and College Station.

Bryan — no review clock, but a published inspection rule

Bryan's code, at § 14-20 and again at § 14-47, requires that upon receipt of a request for inspection of items to be covered in future phases of construction, "the city inspectors shall perform the inspection within 48 workday hours" unless otherwise scheduled with the permit holder, "excluding weekends and holidays." That is a real, published Bryan timing, and on a build sequenced around cover-up inspections it is more useful than a review target would be. See Bryan.

A permit has a life of its own, and a stalled build can outlive it

A review clock tells you when you may start. A permit-life provision tells you when you must have shown progress — and two Texas cities set that dial nearly four times apart.

Austin: the 181st day

Austin § 25-12-267 expires a permit "on the 181st day" after issuance where the project has received no inspections, or on the 181st day after the last scheduled inspection where that inspection, once performed, "shows progress towards completion." § 25-12-268 lets the building official grant a one-time extension of not more than 180 days, and § 25-12-266 expires the application itself one year after filing where no permit has issued.

Dallas: the second anniversary

Dallas § 302.5.1 voids a permit only where "no progress has been made toward completion of the project" before the second anniversary of its issuance, subject to extension under § 302.5.2. The same building, drawn the same way, therefore faces a roughly six-month progress clock in one Texas city and a two-year one in another. Neither is the Texas rule; each is that city's rule.

Why a 181-day clock bites on this building type specifically

Barndominiums are frequently built in stages — shell erected, shop finished, living space last — and frequently part owner-built. That is exactly the pattern a progress clock is designed to catch. Austin's provision measures from the last inspection that showed progress, which means what keeps the permit alive is keeping inspections moving, not keeping the site busy. We do not put a completion date on a build, in Austin or anywhere else; what is worth doing before the design is finalised is establishing which clock the parcel is under.

Killeen expires the application as well as the permit

Killeen § 8-27 expires the application itself 45 calendar days after approval with fees unpaid, or 45 days after disapproval, with a 30-day extension available on written justification. § 8-28 then voids an issued permit if work does not start, or is suspended, for 180 days. Two separate dormancy traps on the same project, at two different stages.

The county instruments carry their own expiry dates

Montgomery County's development permit for a new residential structure expires in 180 days. A Bexar County floodplain development permit carries a six-month expiry without a performance guarantee, and the county publishes its own review sequence for it: 10 days for completeness, 30 days for the initial technical review and 15 days for follow-ups. Bryan takes the opposite approach and codifies the state dormancy rule at Chapter 27, expiring a project no earlier than the fifth anniversary of the first permit application where no progress has been made, with five defined kinds of qualifying progress.

Before the building permit: the order differs by county, and two counties run it backwards from each other

This is the finding that makes the difference between a schedule and a guess. Nothing here is a national rule, or even a Texas rule — it is a county rule, and it has to be read for the specific county.

Liberty County gates the building permit behind the septic permit

Liberty County's own Building and Septic Permit Guide states that "you must provide proof of an existing OSSF … OR purchase a septic permit … BEFORE a building permit will be issued." A permit is required there for any building 100 square feet or larger. Its septic order also makes the drainfield the fixed point on the site plan: § 9(P) makes it a violation for secondary structures "such as a garage, storage building, and/or shop" to be erected within the established setbacks. On a barndominium that means the shop bay is sited around the septic system, not the other way round. See Liberty County.

Burnet County runs it in exactly the opposite direction

Burnet County's on-site sewage facilities and development permits page states plainly: "You must have a Building Permit in order to get a Septic/OSSF Permit." It offers two classes — Class A outside any flood hazard area, Class B inside a designated flood hazard boundary — and its own parenthesis on the Class A permit reads "(No Inspections required for the structure)." So the building permit that gates the septic permit is itself an application and a payment with no structural review attached to it. See Burnet County.

In Burnet the 911 address comes before either of them

The same page's Step 1 reads: "You must apply for a 911 Address for any new residence or business project before you can apply for any permits." Addressing is easy to treat as an afterthought because it costs almost nothing and produces no drawing. In several counties it is the first gate in the chain, and everything downstream waits on it.

Travis County reaches the first disturbance of soil

Travis County Code § 464.061(a) provides that "a development permit or Special Flood Hazard Area Development Permit is required before any construction or other development begins" in the county's jurisdiction, and § 464.061(c) makes development within a special flood hazard area unlawful without one "regardless of whether a plat is required," adding that the development permit is required in addition to any other permit. That is the broadest trigger of the counties researched: it reaches clearing and earthwork, not just the building. See Travis County.

"No county building code" does not mean the county issues nothing

Every county researched issues some construction instrument. Montgomery County requires a development permit for all proposed development in the unincorporated areas. Ellis County has permitted since 1977 under its Water Code authority and doubles the fee where work proceeds without one. Fort Bend County's residential development permit triggers on any fully enclosed structure or concrete slab of 400 square feet or more, and the county's own page names "a barn, garage, workshop, or storage building." These are floodplain and drainage instruments rather than building codes — but they are permits, they have to be obtained in order, and they take time.

Platting comes first, and it can foreclose everything downstream

The single most expensive schedule mistake available in rural Texas is buying a tract that was divided in a way that disqualifies it from the permits a house needs. It is checkable in advance, sometimes free, and almost nobody checks it.

Grayson County: no plat, no permits

Grayson County's subdivision regulations, § 8.10, added 9 April 2024, state that "no OSSF Permit, Culvert Permit, nor other applicable required permit shall be issued for a lot in a subdivision for which a plat has not been approved." That is the general rule, and it is upstream of the septic system, the driveway and the house. See Grayson County.

And the cheap exemptions carry a sting

Grayson § 8.3 (phased subdivisions) and § 8.4 (agricultural use) each end with the same sentence: "Properties subdividing under this exemption are not eligible for an E911 address or an OSSF permit." Agricultural-use land is cheap and it is how a great deal of North Texas acreage is carved up — so taking the exemption to avoid platting costs the buyer the address and the septic permit, which is to say the ability to build a house at all. Read the specific exemption carefully: § 8.1's more-than-ten-acres exemption does not carry that sentence, and flattening the three together would be wrong in the buyer's favour.

Grayson will answer the question in writing, free, in ten business days

Grayson § 8.9, also added 9 April 2024, requires an owner to apply for a formal determination by filing an Application for Formal Determination of Exemption Status with the Director of Development Services, states that "no fee is required," and gives the Director ten business days from receipt to make the formal determination in writing. For a buyer in Grayson County that is the actual first move — before an option period closes, before a survey, before money changes hands.

Williamson County reaches the same result through its septic order

Williamson County's on-site sewage facility order, § 10(D)(3), provides that a tract subdivided without complying with the county's subdivision regulations "will be ineligible to obtain an authorization to construct an on-site sewage facility." The county requires that authorization to issue before any construction of the system begins. Two different counties, two different instruments, the same outcome: the platting history of the tract decides whether a septic system may be built on it. See Williamson County.

Brazos County is the counter-example, and it matters

Brazos County's subdivision regulations, Article 3 § C — requirements for exempted property — keep the on-site sewage facility, addressing, driveway and floodplain permits available on tracts that are exempt from platting, where Grayson's agricultural and phased exemptions extinguish the address and the septic permit outright. Article 3 § D then sets out how a tract can lose the exception. So "exempt from platting" carries opposite consequences in two Texas counties, and the only way to know which applies is to read that county's own regulations. See Brazos County.

Water can be the longest item, and on some tracts it is simply not available

Where there is no public water main, the well is a permit, a lot-size test and a drilling schedule — in that order. On the recharge zone, a state agency sits ahead of the county entirely.

Kerr County: ten acres, or you may not drill

The Headwaters Groundwater Conservation District's Rule 4, Section 3.A(4) requires a minimum tract size of ten acres to drill an exempt well on a tract in Kerr County subdivided or platted on or after 10 August 2023, and Rule 5, Section 1(4) applies the same ten-acre minimum to drilling a well generally on such a tract. The district also prohibits the drilling of any well until a signed registration is in place. A five-acre parcel carved out of a ranch after that date cannot get water from a well at all — and no buyer checks the deed history for a rule keyed to a subdivision date. See Kerr County.

Hays County: even the "exempt" well takes a permit

The Hays Trinity Groundwater Conservation District's published New Exempt Well requirements charge a $450 application fee and require a completed application form that is notarized, together with a site plan and the location of the septic system. "Exempt" there describes the class of well, not an exemption from permitting. That is a materially different front end from the ordinary Texas position, where a domestic or livestock well is registered rather than permitted, and only commercial, irrigation and municipal wells carry spacing and production limits. Which district a tract falls in decides which of those two worlds it is in. See Hays County.

On the Edwards zones, TCEQ sits ahead of the county

Comal County subordinates its own approvals to the state programme in terms. Its order at 10.10 provides that "a Contributing Zone Plan or modification to a plan as required by TAC § 213.21, shall be approved by the appropriate TCEQ regional office before an authorization to construct may be issued by Comal County for an OSSF located over the Contributing Zone," and the county's platting provisions require proof of an accepted TCEQ application with the plat application, with "final plat approval shall be contingent on WPAP approval." So on a recharge-zone parcel the state review is not a parallel task; it is a predecessor to both the plat and the septic authorization. See Comal County.

Ask which zone, not which county

The Chapter 213 programme is written around the recharge, transition and contributing zones, and those zones do not follow county lines. Testing TCEQ's own Chapter 213 zone data against county boundaries returns four zone types over parts of Bexar and Comal, contributing zone only over Bandera, and none at all over Kerr or Dallas. A county-level answer to "am I on the Edwards Aquifer" is therefore the wrong shape of answer. It is also worth keeping the bodies straight: TCEQ's protection programme and the Edwards Aquifer Authority are different organisations with different remits.

The parts that are craft rather than paperwork

The material and utility clocks are the ones a national timeline article treats as background. On a metal-frame house on raw land they are frequently the long pole.

Steel drawings are the input to fabrication, and changes restart part of it

Universal Steel of America publishes working ranges for a building of average complexity: "roughly 3 to 6 weeks on drawings and 6 to 10 weeks on fabrication and delivery," and frames them itself as "working ranges rather than a promise." It names slow approval turnaround and changes made after the set is issued as what stretches the drawings phase, and complex geometry, cranes, special coatings, specialty panels and doors, seasonal plant backlog and freight distance as what stretches the second. That is a single supplier's published figure rather than an industry statistic, and it is the argument for spending longer on design rather than shorter — the fabrication clock does not start until the set is issued, and a change after issue puts part of it back.

The utility connection has its own calendar, and it is often the longest one

Georgetown's electric line-extension policy, approved 28 October 2025 and effective 1 July 2026, gives the customer 90 days to pay after the preliminary design and estimate, releases the Letter of Serviceability at 50 per cent paid, and states it is city policy to collect 100 per cent of the invoiced project cost before acquiring materials — noting on the same page that "some materials may have prolonged lead times (6 months or more)." A recorded easement for the primary route is required before scheduling, and the meter work order is scheduled within 7 to 10 business days after the permanent-power inspection passes. On a rural build the power schedule, not the plan review, is frequently the item that sets the finish date. See Georgetown.

A working shop can add a step to the electrical connection

Bryan Texas Utilities publishes 3 to 5 business days for a service order requiring only the installation of an electric meter, and 7 to 10 business days where any construction is needed, with the scheduling clock not beginning until the customer has mounted an approved meter loop, signed the damage waiver, executed easements and paid the contribution in aid of construction. It also requires, for all installations greater than 200 amps, an electric load analysis provided by the customer or their contractor before service is extended or any contribution amount is even determined. A barndominium with a welder, a compressor, a lift and a sub-panel routinely goes past 200 amps, so on this building type that analysis is a scheduled step rather than an edge case.

Concrete answers to the engineer, not to a calendar

The slab has to reach strength before a frame is erected on it, and compressive strength is conventionally specified and tested at 28 days. The erection date follows the strength the engineer actually required for that mix and that structure, not a number read off a web page. This guide does not publish a cure figure for that reason. It is worth planning around as a real gap between two trades rather than treating the slab pour and the steel raise as consecutive weeks.

Weather decides which stages are exposed, and the exposure is not uniform

Using NOAA's 1991–2020 U.S. Climate Normals, the Houston station records 64.2 days a year with at least a tenth of an inch of precipitation against Midland's 27.3, and Amarillo records 107.4 nights a year below freezing against Houston's 9.7. Wet days are an earthwork and foundation problem; freezing nights are a concrete and mortar problem. The practical consequence is that the same building has a different weather-exposed window on the Gulf Coast, in the Hill Country and in the Panhandle, and dry-in is the milestone that closes it in all three.

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What's different about Texas

There is no general Texas permit-review deadline

Two separate 45-day rules exist in Texas statute and neither is a statewide permit clock. Local Government Code § 233.901 requires a decision within 45 days on a county building permit, but applies only to a county with a population of 3.3 million or more — that is Harris County alone — and it expressly excludes on-site sewage disposal permits. § 214.904 is a different provision entirely: a municipal permit deadline carrying a fee refund, which reaches into a city's extraterritorial jurisdiction. Merging the two produces a rule that is wrong in both directions. So a review target in Texas is whatever the individual city publishes, and several publish nothing.

A county can issue a permit and never look at the building

Liberty County requires a permit for any building 100 square feet or larger, and its own permit guide is explicit that proof of an existing on-site sewage facility, or the purchase of a septic permit, must come before a building permit will be issued. Its legal root is the county's Flood Damage Prevention Ordinance, not a building code, and no edition, design criterion or structural inspection appears anywhere in the county's documents. Burnet County states the same thing in its own parenthesis on its Class A building permit: "No Inspections required for the structure." For a schedule that means the county step is short and administrative — but it is still a gate, and it is still in a fixed order.

The septic authorisation does not end when you move in

Bexar County's on-site sewage facility regulations require every system in the jurisdiction to be registered and issued a License to Operate, prepared by a professional engineer or registered sanitarian, and the regulations state that those "will remain in effect for a five-year period. Upon expiration, the owner is required to renew the license." A standard system is renewed every five years by pumping the tank and submitting the record. That is a recurring obligation on a five-year cycle rather than a one-off permit, and it belongs in the ownership plan, not only the build plan. See Bexar County.

Letting the building can move it onto a different review track

Montgomery County's permit pages route rental homes — "anything that is rented out" — through the commercial office, where the Fire Marshal enforces the 2024 International Fire Code and International Building Code and the permit is priced as a commercial one. The schedule consequence is a different reviewer applying a different code to the same drawings. A barndominium intended as a guest house, a short-term let or eventual income property is worth establishing on that basis before design, not after. See Montgomery County.

Texas is not one build climate, and the spread is large

NOAA's National Centers for Environmental Information publishes 1991–2020 U.S. Climate Normals by station. Houston Intercontinental Airport records 49.77 inches of annual precipitation and 64.2 days a year with at least a tenth of an inch, against 9.7 nights below 32°F. Midland International Airport records 14.60 inches and 27.3 such days, against 58.2 freezing nights. Amarillo International Airport records 107.4 freezing nights — more than eleven times Houston's. Austin Bergstrom sits at 34.64 inches and 47.9 wet days, Waco Regional at 34.69 and 50.3, San Antonio International at 32.27 and 46.3, and the Dallas–Fort Worth station at 36.18 and 52.8. Earthwork and concrete are the weather-exposed stages, dry-in is the milestone that ends the exposure, and which of those two constraints binds depends on which end of the state the parcel is on.

Pros and cons, honestly

Pros

Once the package is on site, a steel or post-frame shell goes up quickly and dry-in ends the weather exposure earlier than a comparable stick-framed footprint.
Much of the structural engineering happens before submittal rather than during review, because the building package is designed and stamped ahead of the permit — so the review queue is generally reviewing a complete set rather than iterating with the applicant.
Austin, Temple, Killeen, Round Rock and Dallas all publish a number for their part of the process, which makes the front half of the schedule genuinely plannable in those jurisdictions.
On unincorporated land with no county building code there is no structural plan review to queue for at all; Burnet County's Class A permit is an application and a payment, and its own page says no inspections are required for the structure.
Grayson County will tell an owner in writing, at no fee, within ten business days whether a tract is exempt from platting — the cheapest schedule insurance available in this state.
Where a build is staged deliberately — shell first, shop next, living space last — a two-year progress clock like Dallas's accommodates it comfortably.

Cons

The platting, address, septic and water steps sit ahead of the building permit and are the ones that actually slip, and none of them appears on a national build-timeline article.
The order of those steps is not consistent: Liberty County requires the septic permit before the building permit and Burnet County requires the building permit before the septic permit.
Austin expires a permit on the 181st day without progress, which is short for a staged or partly owner-built barndominium; Dallas allows until the second anniversary.
Three of the cities researched publish no plan-review turnaround at all, so the front of the schedule there has to be established by telephone rather than read off a page.
A well may not be drillable: Kerr County's district requires a ten-acre tract to drill on land subdivided or platted on or after 10 August 2023, and no buyer checks deed history for that.
Taking an agricultural-use platting exemption in Grayson County extinguishes eligibility for both the E911 address and the septic permit, which ends the project rather than delaying it.
Steel drawings are the input to fabrication, so a change made after the set is issued puts part of a lead time already measured in weeks back to the start.
On a recharge-zone parcel in Comal County the state review is a predecessor to both final plat approval and the septic authorization, not a parallel task.

Common questions

9 questions people ask most about barndominium cost. If yours is not on the list, ask it directly.