Open rolling Blackland Prairie cropland grading into a post oak belt of the Eastern Cross Timbers, with a pecan-lined creek.
Bell County No county building code

Barndominium Builders in Bell County, TX

Bell County is 1,054 square miles between Belton Lake and the Little River bottoms, and the answer to what applies here changes at every city line. Outside them the county's own engineer puts it plainly: no building permit, no building code, no zoning. What does apply is a different list. The septic permit is the one that looks hardest at the house, and Bell County requires it on any size tract. Every septic application carries a floodplain certificate to the county engineer. On rural acreage the binding constraint is usually water rather than dirt, because the Clearwater Underground Water Conservation District permits wells across the whole county and the county's own sewage order then adopts the district's minimum lot size. Inside Killeen, Temple, Belton, Harker Heights, Salado, Nolanville or Troy, that city's adopted code and its own building official apply instead.

Bell County at a glance

County
Bell County
Population
402,248
Where we build
Belton, Temple, Killeen

ZIPs 76513, 76501, 76502, 76504, 76511, 76519, 76527, 76528 and more

Site visits
We meet you on the tract, Belton or anywhere else in Bell County
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Building conditions in Bell County

What actually changes from one Texas jurisdiction to the next: who issues the permit, whether the residential code is enforced there at all, what the structure has to be engineered to, and what the ground is like. These are the numbers your drawings have to satisfy.

Build conditions for Bell County , Texas . BUILD CONDITIONS BELL COUNTY, TXBell CountyNO COUNTY BUILDING…ADOPTED RESIDENTIAL CODENO COUNTY BUILDING…This jurisdiction publishes no design wind speed. It is settled in writing with the authority overyour parcel before the frame is ordered.ZONING · UNDEFINEDSet by the Bell County Health Distri…Texas counties have no general zoning power, and Local GovernmentCode Sec. 233.153(d)(2) confirms that even an opted-in county may…WHO ISSUES THE PERMITBell County Engineer's Office and th…County Engineer's Office, 206 N. Main Street, Belton, TX 76513, mailP.O. Box 264, Belton, TX 76513, (254) 933-5275. It reviews plats,…
Build conditions for Bell County, drawn from the sourced facts on this page. Every figure above is cited in the quick-facts panel below, with its source and vintage.
The county answers the building-code question itself
Bell County's engineer publishes the question and the answer. Asked whether the county requires building permits or has zoning in the unincorporated areas, the answer to both of these questions is no, and if you are building outside the cities there is no building permit, building code or zoning with which you must comply. The same page then lists what does apply: the Health District's on-site sewage rules and a floodplain review by the County Engineer.

Bell County Engineer, Land Development FAQ, bellcountytx.com/departments/engineer/faq.php

The water district decides whether the tract gets a well at all
Clearwater Underground Water Conservation District covers all of Bell County. A domestic well is exempt from its permitting only on a tract larger than ten acres, or on a smaller tract that was platted, met a platting exception or was otherwise lawfully configured before 1 March 2004 and has not been divided since. So a five- or ten-acre tract carved out of a larger one after that date does not get an exempt well: it has to be permitted. Exempt wells must also stand 75 feet from the property line and 150 feet from another well in the same aquifer.

Clearwater Underground Water Conservation District Rules 6.3 and 9.5.5, effective 26 August 2026

And the septic order adopts the water district's lot size
Bell County's own additional sewage rules require that all subdivisions approved after the date of those rules and not served by a public water supply must meet the minimum lot size requirements set by the Clearwater Underground Water Conservation District, wherever those exceed 30 TAC Chapter 285. Two agencies, one floor: the groundwater district sets the smallest lot the health district will approve.

Bell County Public Health District, Additional Rules beyond Chapter 285, Rule 3

The shop bay does not enlarge the drainfield here
Texas sizes a single-family septic system off bedrooms or the living area of the home, whichever gives the larger figure, so 1,800 square feet of three-bedroom living space with a 2,200 square foot shop is a 300 gallon-per-day house rather than a 375. Bell County's additional rules are exhaustive and none of them redefines living area, and the District's own application asks for the number of bedrooms and the square feet of living area. In McLennan County, 35 miles up I-35, the answer is the opposite: there a loft or a space attached to a garage is deemed a living structure.

Bell County Public Health District Additional Rules beyond Chapter 285 and its Application to Construct OSSF; TCEQ form TCEQ-0235 item 8 and 30 TAC Ch. 285 Table II; Waco-McLennan County Public Health District OSSF order

The floodplain permit is $2,000
The county's current subdivision regulations carry an engineer's fee schedule, and it is where the real construction gates live. A floodplain permit is $2,000 and a floodplain determination $30. A street or driveway permit is $300 and a utility permit $110. A preliminary plat is $500 plus $15 a lot and a final plat $250 plus $15 a lot. None of it is a code review of the house, and the county's older web pages still say plats are free, which they no longer are.

Bell County Subdivision Regulations adopted 2 April 2001, revised 2 December 2024, Appendix D, Bell County Engineer Services & Fee Schedule

There is one thing a Texas county can zone, and Bell County is on the board
Counties may not zone, but the Airport Zoning Act defines a political subdivision as a municipality or county and lets one join a joint airport zoning board that may specify permitted land uses, regulate the type of structures and restrict their height. Bell County's commissioners court appoints two of the seven members of the Killeen, Harker Heights, Bell County Joint Airport Zoning Board. The ordinance it adopted protects Skylark Field, and it needs no permit for a structure under 75 feet in the horizontal and conical zones, so it does not reach a house.

Texas Local Government Code Secs. 241.003, 241.011 and 241.014; City of Harker Heights Code ch. 97 subch. I, Ords. 87-28 and 88-13; City of Killeen Code ch. 7 art. III, Ord. 88-27

Also worth knowing before you build in Bell County

Ten acres buys you nothing on septic
The widespread belief that ten acres exempts a house from the septic rules is wrong statewide, and Bell County forecloses it in its own words twice over. Its additional rules require that all construction of, alteration, extension or repair to on-site sewage facilities be permitted and inspected, regardless of the size of the tract of land. Its Health District page says the same in plainer English: Bell County requires all OSSFs to be permitted regardless of lot size or acreage.

Bell County Public Health District, Additional Rules beyond Chapter 285, Rule 1, and its OSSF Process page

The drainfield decides where the shop goes
Bell County publishes a setback the state rules leave to a table: no subsurface disposal system may be installed within five feet of a home or building's foundation slab. On a barndominium that is planned as one long slab with a shop bay on the end, the septic layout is settled before the building footprint is, not after. The same rules bar holding tanks for new construction outright, allowing a septic tank as a temporary holding tank for no more than sixty days.

Bell County Public Health District, Additional Rules beyond Chapter 285, Rules 12 and 13

The affidavit is filed before the application, not with it
Since 1 September 2024 all affidavits must be filed with the Bell County Clerk's Office before the septic application is submitted, and a copy of the filed affidavit must be attached to the initial application. An application submitted without it is rejected and the whole packet has to be resubmitted in full. The clerk requires original wet-ink legible affidavits at 1201 Huey Road, Belton, and charges a $10 filing fee.

Bell County Public Health District, On-Site Sewage Facilities page, New Affidavit Procedures starting 1 September 2024

What the septic permit costs
Bell County publishes $610 for a standard single-family residential on-site sewage permit and $710 where the design is a professional one, with a $150 initial design review that is applied to the permit fee but must be paid before review starts. Additional design reviews are $150, an amended design $300, a real estate inspection $200, and an unpermitted installation is charged at twice the current permit fee.

Bell County Public Health District, On-Site Sewage Fees, May 2024 revision, effective 1 September 2024

An agricultural exemption from platting is conditional, not spent
Bell County requires a plat wherever a resulting tract is ten acres or less, with exemptions for agricultural use, conveyances to close family, lots all over ten acres and sales to veterans through the Veterans' Land Board. The trap is in the next line: if the tract ceases to meet the exemption, platting requirements shall immediately apply. Buy a small ag-exempt carve-out, stop farming it, and the obligation attaches. Each platted lot also needs 50 feet of frontage on a public road.

Bell County Subdivision Regulations revised 2 December 2024, Sec. 103.1 and Appendix A items 5, 6 and 8

The county does set building setback lines
Bell County has never adopted a residential building code, but it has used a different part of the same chapter. Its subdivision regulations set building setback lines in accordance with Chapter 233 of the Local Government Code: fifty feet from the edge of the right of way on major highways and roads, twenty-five feet on other public roads, and fifteen feet in the turnaround of a cul-de-sac. Those lines are drawn on the plat.

Bell County Subdivision Regulations revised 2 December 2024, Sec. 301.1

Every septic application gets a floodplain check
The county engineer explains the link himself: when you apply for an on-site sewage permit from the Health District you are asked to fill out a Flood Plain Exemption Certificate, and that certificate goes to the County Engineer's Office for review to ensure you are not building in the flood plain. The County Engineer is the county's designated floodplain administrator, and on a platted lot in a flood hazard area the minimum first floor must be set at least one foot above the floodplain elevation, with no structures permitted in an identified floodway.

Bell County Engineer Land Development FAQ and Floodplain Management page; Bell County Subdivision Regulations revised 2 December 2024, Sec. 204(14)

Let it by the weekend and the county has a form for you
There is no county building code for a house you rent out here, but there is a tax. Bell County levies a hotel occupancy tax of 2 percent of taxable receipts on anyone owning, operating, managing or controlling a hotel, motel, tourist home, lodging house, inn, rooming house or bed and breakfast in the county, and it expressly excludes permanent residences of longer than 30 days. A monthly report is due by the 20th even when no tax is owed.

Bell County Hotel Occupancy Tax Order 291/15, rate effective 1 October 2015, Bell County Auditor's Office

A foster home or a day care is inspected, in the unincorporated county
The Bell County Fire Marshal's Office conducts fire and life safety inspections and witness tests throughout the unincorporated areas of the county and in some smaller municipalities, and publishes fees for them: foster or adoptive homes $75, day care centres $75, licensed facilities $60, nursing homes $150, plan review $50 and a construction final certificate of occupancy $50. Since 1 January 2025 it all runs through the My Government Online portal. So a change of use can put a county inspection on a building that needed no permit to build.

Bell County Fire Marshal's Office, Application for Service & Fee Schedule and Online Permits pages

This is Blackland Prairie, and the soil series is named for the county
The Branyon series, one of the two flagship soils of the Texas Blackland Prairies, was established in Bell County in 1972 and is classified as a Udic Haplustert, a Vertisol, the soil order defined by shrink-swell cracking clay. The NRCS regional soil survey office responsible for it is in Temple. That matters because Texas removes the exemption that otherwise lets a residential slab be designed without an engineer once the soil is expansive.

USDA-NRCS Official Series Description, BRANYON, soilseries.sc.egov.usda.gov; Texas Occupations Code Sec. 1001.056(c)(2); IRC R403.1.8 and IBC Sec. 1808.6

The Edwards Aquifer permit does not reach here
In the Hill Country counties an hour south, building over the Edwards Aquifer recharge zone brings a TCEQ approval onto land that has no building code at all. Bell County is outside that programme. TCEQ's own guidance describes the recharge zone construction restrictions as applying in Williamson, Travis, Hays, Comal, Bexar, Medina, Uvalde and Kinney counties. Bell is not among them, even though the Edwards Balcones Fault Zone aquifer underlies part of the county.

TCEQ Edwards Aquifer Protection Program, Rules page, describing RG-011

Climate zone 2A, and the edition does not change it
Bell County is climate zone 2A, hot-humid, on the pre-2021 map and on the 2021 and 2024 map alike. It is not one of the eight Texas counties whose insulation specification depends on which edition a jurisdiction happened to adopt, so the zone is the same in Killeen, Temple, Belton and out on the county roads between them.

DOE/PNNL-33270 climate zone assignments and the published IRC county tables for the 2018 and 2024 editions

A licensed plumber is required even where nothing else is
The rural exemption in the Texas plumbing licence law expressly excludes plumbing performed in conjunction with new construction. It is one of two statewide requirements that survive the absence of a county building code, and it applies on land with no permit and no inspector. The other is the state energy code: a builder working outside the limits of any municipality must certify the house against it and keep that certification for three years.

Texas Occupations Code Sec. 1301.052; Texas Health and Safety Code Secs. 388.003(a) and 388.004

Most of Bell County's people are inside a city, and the share is falling
Bell County's population estimate rose from 372,407 on 1 July 2020 to 402,248 on 1 July 2025, a gain of 8.0 percent. But the balance of the county, everyone outside every city limit, fell over the same period from 59,112 to 56,910, because Killeen, Temple, Belton, Nolanville and Troy have been annexing outward. The land is still there across 1,054 square miles, but the buildable private acreage sits east and south of the reservation rather than in the Killeen corridor.

U.S. Census Bureau county and subcounty population estimates, co-est2025-alldata and sub-est2025, computed on POPESTIMATE2020; 2024 Census Gazetteer county file

An excavator grading a compacted building pad on a cleared lot, with survey stakes and a drainage swale visible.
Below the slab

The expensive surprises are in the ground, not the building

What moves a Texas budget is usually below grade, and it is soil rather than rock: shrink-swell clay. The Blackland Prairie and the Gulf Coast clays move enough between a wet season and a dry one to drive the foundation design across the state's largest markets, which is why several DFW cities require an engineer's seal on the foundation of every new house. Those are the same conditions that decide whether a septic field passes its soil and site evaluation, so the grading plan, the foundation and the drainfield get resolved together rather than one at a time. We price the dirt before we price the building.

What we build in Bell County

All nine of our services — kits, custom plans, post-frame and steel construction, site preparation, permitting and engineering, through to turnkey builds — are available across Bell County. What a project costs depends far more on the parcel than on square footage, so we work from your land rather than from a rate card.

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What a build looks like

Three stages every Bell County project passes through, from a raw parcel to a finished home. Site work first, because that is where the budget is decided.

Aerial view of an undeveloped rural lot with cleared grass, a live oak and cedar elm treeline, and a pale gravel access track.
Stage one

The parcel

Zoning, setbacks, flood zone and utility access get checked before anything is drawn.

An excavator grading a compacted building pad on a cleared lot, with survey stakes and a drainage swale visible.
Stage two

Pad and permit

Clearing, grading and a compacted pad, while the submittal works through Bell County.

A finished barndominium at dusk with warm interior lighting glowing through its large windows.
Stage three

Frame to finish

Shell erected and dried in, then systems, insulation and interior finish through to CO.

Those are the rules for Bell County. Tell us what you want to build and we will draw it to them.

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Where we build around Bell County

Bell County and the rural land around it. The buildable acreage for a project this size usually sits outside the city limits, which is frequently what changes who issues your permit.

Our Bell County service area, covering Bell County and the surrounding rural acreage. This map marks the territory we serve, not a branch location.

Keep reading

The questions that usually come next once you know what Bell County allows.

Barndominium Cost Guide

Sourced per-square-foot ranges by tier and by size, with a calculator built on the same figures.

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Is It Legal in Texas?

Classification, zoning, the HOA gate, and why "nonresidential farm building" does not cover a home.

Read it

How Long Does It Take?

Census build-duration data, and what actually sets the permit clock where you are building.

Read it

Nearby areas we build in

Others we cover in this part of Texas. The permitting authority, the adopted design criteria and the zoning can all differ from one to the next.

Temple

Bell County
Killeen

Bell County
McLennan County

McLennan County
Williamson County

Williamson County

Building in Bell County: common questions

8 questions we get asked most often about building in Bell County. If yours is not on the list, ask it directly.

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Do I need a building permit for a barndominium on unincorporated land in Bell County?
No, and the county says so itself rather than leaving you to infer it. Its engineer's own FAQ asks whether Bell County requires building permits or has zoning in the unincorporated areas and answers that the answer to both is no, and that there is no building permit, building code or zoning with which you must comply outside the cities. Chapter 233 of the Local Government Code is the whole of a Texas county's authority over structures and it contains no general building-code subchapter, so unless a commissioners court adopts a Subchapter F order there is nothing to comply with. A full-text search of the county's own site and documents turns up no adopted International Residential Code and no reference to Chapter 233 Subchapter F. What you will deal with is the septic permit, a floodplain review, platting if the tract was divided, and a driveway permit. Inside Killeen, Temple, Belton, Harker Heights, Salado, Nolanville, Troy or the smaller towns, that city's adopted code and building official apply instead, and the answer changes completely.
I found five acres near Salado with no water on it. What do I check first?
The well, before anything else, and before the offer if you can manage it. Clearwater Underground Water Conservation District covers all of Bell County and its rules exempt a domestic well from permitting only on a tract larger than ten acres, or on a smaller tract that was platted, met a platting exception or was otherwise lawfully configured before 1 March 2004 and has not been subdivided since. A five-acre tract carved out of a bigger parcel after that date is not exempt, so drilling it means a district permit, and the district may only grant a combined drilling and operating permit on a tract of two to ten acres producing no more than one acre-foot a year. Then check septic, because the county's sewage order pulls the district's minimum lot sizes into its own rules for any new subdivision without public water. Then platting and the floodplain. The district is at 254-933-0120 and the Health District's wastewater division at (254) 778-7557.
Does my shop bay make the septic system bigger?
Not in Bell County. Texas sizes a single-family system off the number of bedrooms or the living area of the home, whichever gives the larger figure, and the shop is not living area. A house with 1,800 square feet of three-bedroom living space and a 2,200 square foot shop is sized as a three-bedroom, 300 gallon-per-day house rather than the 375 a total-footprint reading would give, and on heavy clay that is the difference between roughly 3,000 and 3,750 square feet of drainfield. An authorised agent is allowed to be stricter than the state, and this is exactly where counties diverge: Bell County's additional rules are an exhaustive list of fourteen items and none of them redefines living area, and its own application form asks for square feet of living area. Thirty-five miles up I-35 in McLennan County the order does redefine it, so a loft or a space attached to a garage counts there. Same interstate, opposite answers, and Bell is the side you want. Where the shop goes is still constrained: no subsurface disposal system may be installed within five feet of a building foundation.
I am at Fort Cavazos and looking at land nearby. Is there anything around the post I would not think to check?
Two things, and one is not what people expect. First, Bell County publishes no compatible-use overlay, no noise contours and no accident potential zones of its own, and a Texas county has no general zoning power to impose one, so there is no county land-use restriction around the reservation on the record. If the parcel abuts the boundary, ask the County Engineer at (254) 933-5275 and the installation before you commit, because the absence of a published county rule is not the same as an absence of federal interest. Second, there is one land-use board Bell County genuinely sits on. The Airport Zoning Act treats a county as a political subdivision and lets it join a joint airport zoning board, and the county appoints two of the seven members of the Killeen, Harker Heights, Bell County Joint Airport Zoning Board. That board's ordinance protects Skylark Field, not the post's airfields, and it requires no permit for a structure under 75 feet in its horizontal and conical zones. A single-storey barndominium is nowhere near that.
I want to rent it out, or let it while I am posted elsewhere. Does that change anything?
It changes the tax and it may change the inspections, and it is worth settling before you build rather than after. Bell County levies a hotel occupancy tax of 2 percent of taxable receipts on anyone operating a lodging house, inn, rooming house or bed and breakfast in the county, and it expressly excludes permanent residences occupied longer than 30 days. So a twelve-month lease sits outside it and a weekend let sits inside it, with a monthly report due by the 20th whether or not tax is owed. On the building itself, some Texas counties route anything that is rented out through a commercial track where a fire code genuinely is enforced. Bell County publishes nothing of that kind, and no adopted fire code appears anywhere on its site. What it does publish is fees for fire and life safety inspections of foster and adoptive homes, day cares, licensed facilities and nursing homes in the unincorporated county, so a change of use into a licensed one puts an inspector on a building that needed no permit to build. If the plan involves letting, call the Fire Marshal's Office on (254) 831-2241 first.
How much does the county actually charge, if there is no building permit?
More than people expect, and almost none of it is for the building. The septic permit is $610 standard or $710 where the design is professional, with a $150 initial design review that must be paid before review starts and is then credited against the permit; an unpermitted installation is charged at twice the permit fee. On the engineer's side the fee schedule in the current subdivision regulations lists a floodplain permit at $2,000, a floodplain determination at $30, a street or driveway permit at $300 and a utility permit at $110, with a preliminary plat at $500 plus $15 a lot and a final plat at $250 plus $15 a lot. The county clerk charges $10 to record the septic affidavit. Note that the county's older web pages still say there is no fee for submitting a plat, which the December 2024 revision changed.
Everyone says rural Texas has no rules. Is that right here?
It is half right, and the expensive half is the half that is wrong. There is genuinely no county residential building code and no county inspector for a house. But a licensed plumber is required on new construction even where nothing else is, because the rural exemption in the plumbing licence law expressly excludes plumbing done in conjunction with new construction. A builder outside any municipality must certify the house against the state energy code and keep the certification for three years. The septic permit and inspection apply on any size tract, in the county's own words, regardless of the size of the tract of land. Every septic application carries a floodplain certificate to the county engineer. The county sets building setback lines on platted lots under Chapter 233. Its public nuisance order lets a county official charged with health, environmental, safety or fire enforcement enter premises in the unincorporated area to inspect or abate, and a surface discharge from a septic system is on the list. And recorded deed restrictions bind whether or not a public body is enforcing anything, which in Texas is where most of the real constraint lives. Read the title commitment.
Is there a percolation test?
There is no percolation test in Texas at all. A site evaluator or a professional engineer classifies the soil by texture into classes Ia through IV and each class carries a loading rate in gallons per square foot per day. This is Blackland Prairie: the Branyon series, established in Bell County in 1972, is a Vertisol, the soil order defined by shrink-swell cracking clay, and heavy clay at a loading rate of 0.10 needs a large drainfield. A site can also fail at the other end, because TCEQ's own rule says Class Ia sandy and gravelly soils do not provide adequate treatment through soil contact, and the remedy there is imported soil or secondary treatment with disinfection. The same clay is why the slab question is not optional here: Texas removes the exemption that otherwise lets a residential foundation be designed without an engineer once the soil is expansive. Buy the site evaluation early, and pull the parcel up on the NRCS Web Soil Survey rather than assuming the county-level picture.

Building in Bell County?

Start with the plan. Tell us what you want to build and we will draw it, then confirm what Bell County will actually let you put on the parcel and what wind load it has to meet. That conversation costs nothing.

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