Weld County, Colorado Fort Collins, Greeley & Northern Colorado

Barndominium Builders in Weld County, Colorado

Weld County is farm and ranch country on a big scale, and a lot of the acreage buyers who reach us want a house and a working shop under one roof somewhere between Eaton, Kersey, Ault and Platteville. We design and build those barndominiums across unincorporated Weld County: post frame homes where a wide clear span for hay, trailers or equipment matters most, steel homes where the owner wants a bolted frame, and custom floor plans sized to the family rather than to a catalogue. The county runs its own building department, so plans for rural parcels go to Weld County rather than to a regional office, and the county publishes the snow, wind and frost numbers the drawings have to meet. It also changed code editions this year, which matters if you bought a kit drawn a while ago. Septic goes through the county health department, and water has to be proven before a residential permit is issued. As barndominium contractors working in Colorado's farm counties, we sort those pieces out early. Start the survey with your parcel number and we will tell you what it needs.

Weld County at a glance

County: Weld County
Building permit: County (unincorporated land)
Local facts on this page: 5, each linked to its source

Tell us about your land

Before you build in Weld County

The local answers that shape a build here, each taken from the office or document that publishes it. Rules change, so we confirm them again against your parcel before drawing.

County-issued permitWho issues the permit

Weld County Building Department (Planning and Development Services)

The county building department issues residential permits and inspects work on unincorporated land in Weld County, under Chapter 29 of the Weld County Code. Every project needs an application; the county keeps separate tracks for residential work, agricultural exempt buildings, commercial work and oil and gas equipment. Parcels inside a city or town answer to that municipality instead, so confirm the jurisdiction on the county property portal first.

Source: Building Permit Applications and Inspections - Weld County (weld.gov)

Design criteria for houses: Weld County's residential design criteria (2024 IRC) list a 30 psf ground snow load, a 115 mph wind speed (3-second gust), a 30-inch frost line depth, severe weathering and seismic design category B, and state that all of unincorporated Weld County is in wind Exposure C.
Code edition: Effective 15 June 2026, the Weld County Building Department began enforcing the 2024 International codes, including the 2024 IRC and 2024 IECC, plus the 2023 National Electrical Code, in all of unincorporated Weld County, with county amendments in Chapter 29 of the Weld County Code.
What a residential submittal includes: The county's residential checklist asks for a plot plan showing setbacks, a soils report by a geotechnical engineer, foundation plans wet-stamped by a Colorado-licensed engineer, septic permitting through Environmental Health, and proof of water: a well permit or a tap or water bill.
Septic (OWTS): The Weld County Department of Public Health and Environment regulates on-site wastewater treatment systems: new systems, repairs and vaults need its application, and it reviews engineer reports before and after installation. County policy is public sewer where feasible, with OWTS where sewer is not.
Farm buildings with a bathroom or office: Weld's Certificate of Compliance for an agricultural building covers barns, sheds and similar uses. If the building will include a bathroom, office or breakroom, a letter from a design professional is required, utilities need a separate application, and a setback inspection must pass after the poles are set.

Building on land near Weld County

Much of the land near Weld County's small towns is irrigated farmland and dryland pasture, so buyers here are often choosing between a parcel with an existing well or water tap and one that has neither. Settle that first, because the county will not take a residential permit without proof of water. A soils report is part of the submittal too, and its findings drive the foundation design. Metal building homes suit the flat, windy ground east of the Front Range, but door placement and roof details should respect the county's Exposure C wind rating. Our [site preparation](/services/site-preparation/) work lays out the pad, septic field and drive together. For town lots, see our [Greeley page](/areas/greeley-co/) or head east to [Morgan County](/areas/morgan-county-co/).

Where we build in this part of Colorado

Fort Collins, Greeley & Northern Colorado

What we build in Weld County

Kits, custom plans and turnkey builds. The parcel decides the budget more than the floor area does, so we price against your land rather than a rate card.

Custom Plans

Custom barndominium plans for Colorado: floor plans drawn around your land, snow load and soils, ready for a licensed engineer's seal where required.

Barndominium Kits

Barndominium kits for Colorado land: steel or pole barn shell packages drawn to the snow load your own county or city sets for your elevation.

Turnkey Builds

Turnkey barndominium builds in Colorado: one team from land and permits through well, septic, shell and finishes to a house you move into.

See every service

Have land in or near Weld County? Tell us about the parcel and what you want to build, and we will check it against the local rules before anything is drawn.

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Building in Weld County: questions

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How much does it cost to build a barndominium near Weld County towns like Eaton or Kersey?

The parcel shapes the number more than the floor plan: whether water is already there, what the soils report says about the foundation, how big the septic system has to be, and how far power and the drive have to run. We price against the actual site. Read our barndominium cost guide for sourced ranges, then send the parcel details through the survey.

Do I need a building permit for a barndominium in Weld County?

Yes. A home with a shop is a dwelling, and the county building department permits it on unincorporated land. Calling it a barn does not avoid that: the agricultural certificate is for farm uses, and even a bathroom or office in a farm building triggers a design professional's letter and separate utility permits. Our permitting service puts the submittal together, including the stamped foundation plans the county asks for.

Will barndominium kits drawn for another county pass review in Weld?

Only if the design is checked against Weld's own criteria and the 2024 code edition the county now enforces. A package drawn to an older edition or a lower wind rating needs revising before it is ordered. We review the kit you already have or supply one drawn for your parcel; see our barndominium kits page.

Who handles the septic permit on Weld County acreage?

The county's Department of Public Health and Environment. It takes the application for a new system, reviews the engineer's report, and inspects the installation before it is covered. Its published list of common red tags includes backfilling before inspection and too little fall on the sewer line, so we schedule the septic work around those inspections.

Keep reading

What usually comes next once you know what Weld County allows.

Barndominium Cost Guide

Sourced per-square-foot ranges by tier and size, and what moves the number on your land.

Read it

Is a Barndominium Legal in Colorado?

Zoning, septic and who inspects, before you buy the land.

Read it

How Long Does It Take?

From parcel to move-in, and which steps set the clock.

Read it

Sources for this page

The published pages behind the Weld County facts above. Rules change, so check the current version with the office before you rely on it.

Barndominium builders near Weld County

Nearby places we also build in. Across a city limit or a county line the permit office, zoning and septic rules can change, so each has its own page.

Greeley

Weld County, Colorado

Morgan County

Colorado county

Larimer County

Colorado county

Adams County

Colorado county

Building in Weld County?

Start with the survey. Tell us where the land is and what you want on it, and we will come back with which office permits it, what it will allow, and a plan to fit.

Start the survey