Macon County, Illinois Municipal building code & permit

Barndominium Builders in Decatur, Illinois

Looking for barndominium builders in Decatur, Illinois? We plan and build barndominiums, pole barn homes and shop houses for owners in Decatur and across Macon County, from kit packages you finish yourself to turnkey builds.

Get a Decatur build quote (217) 794-6214

Decatur at a glance

County: Macon County
Residential permits: City of Decatur Building Inspections division (Economic and Community Development)

Barndominium services in Decatur

We supply barndominium kits, draw custom plans and run turnkey builds for owners around Decatur, Illinois. Inside the corporate limits the City of Decatur's Building Inspections division reviews the plans and inspects the work; in the unincorporated county, Macon County Planning and Zoning issues the permit. Send us your parcel details and we will lay out the permit path, the build sequence and a price range.

Barndominium Kits in Decatur

Barndominium kits for Illinois land: shell kits or fuller packages, sized to your county's snow load and frost line, delivered and put up by our crew.

Custom Plans in Decatur

Custom and modified barndominium plans drawn for your Illinois lot, your county's code and the kit or build we quote — sealed where your county requires.

Turnkey Builds in Decatur

One contract from land to keys. We coordinate permits, septic, well, site work, shell and finish for your barndominium anywhere in Illinois.

Pole Barn Homes (Post-Frame) in Decatur

Pole barn homes built post-frame for Illinois acreage: wide clear spans, fewer footings, and posts and footings set to your county's rules.

Steel Construction in Decatur

Red-iron clear-span steel frames for homes, shops and commercial barndominiums in Illinois, with sealed drawings wherever your county requires them.

Shouses in Decatur

Shouse and shop house builds in Illinois: a heated shop and a finished home under one roof, planned around your doors, your county and your land.

Metal Homes in Decatur

Metal building homes for Illinois winters: steel or wood frame, metal skin, and an insulation plan that stops condensation before it starts.

Site Preparation in Decatur

Barndominium site preparation in Illinois: pad, footings, driveway, septic and well coordination, planned around your county's rules and your soil.

Permitting & Approvals in Decatur

Barndominium permits in Illinois, handled: we find out who has authority over your parcel and take the zoning, building, septic and well approvals through.

Before you build in Decatur

Building in Decatur: the local facts

Municipal building code & permit

Inside Decatur's corporate limits the city's Building Inspections division permits and inspects new homes under the 2021 International Residential Code; outside them, Macon County Planning and Zoning issues building permits.

Residential permits: City of Decatur Building Inspections division (Economic and Community Development)
Septic permits: Macon County Health Department, Environmental Health

01
The City of Decatur's Building Inspections division reviews building plans, issues permits and inspects new residential and commercial construction inside the corporate limits.

Source: Building Inspections | Decatur, IL
02
Since January 1, 2024, the City of Decatur has enforced the 2021 International Residential Code and the Illinois Energy Conservation Code in plan reviews and inspections.

Source: Building Code Information | Decatur, IL
03
Outside the incorporated cities, villages and towns, Macon County's Planning and Zoning Department issues building permits and administers the county's zoning, subdivision, floodplain and stormwater ordinances.

Source: Planning and Zoning - Macon County, Illinois
04
The Macon County Health Department's environmental staff review plans and issue permits for septic systems and inspect their construction and installation.

Source: Macon County Health Department | Decatur, IL

Decatur's homeowner permit guide lists a new home and any detached accessory structure over 120 square feet among the projects that need a permit, and says plumbing and roofing contractors must hold Illinois state licences. Homeowner Permit Process (Building Inspections Division, 08/2024)

Finding land

Acreage near Decatur

Decatur is mostly platted city lots, so buyers who want room for a shop usually look at acreage in unincorporated Macon County or next door in Christian County. Outside the city sewer, a new home needs a septic permit from the Macon County Health Department.

Tell us what you want to build in Decatur and we will price it against your land.

Start your project

Building in Decatur: common questions

Who builds barndominiums in Decatur, Illinois?

We do. We supply barndominium kits and custom plans and run turnkey builds for owners in Decatur and across Macon County. Fill in the free land survey with your parcel details and plans for the building, and we will return a layout, a build sequence and a price range.

Do I need a permit to build a barndominium in Decatur?

Yes. Inside the city, the Building Inspections division reviews the plans, issues the permit and inspects the work under the 2021 International Residential Code. Outside the city limits, Macon County Planning and Zoning issues the building permit and handles zoning.

How much does a barndominium cost near Decatur, Illinois?

Cost follows the size of the building, the shop-to-living split, the finish level and the site work your land needs, such as a driveway, septic system and well. We price your building against your parcel after the survey rather than quoting a flat figure.

Can I put a barndominium on rural land in Macon County?

Often, yes, subject to county zoning and a county building permit. A rural home usually needs a private septic system, and the Macon County Health Department reviews the plans and issues that permit before it is installed.

Do you sell barndominium kits for owners near Decatur?

Yes. You can buy a kit package and manage part of the build yourself, or have us take it turnkey. The metal roof is installed by a licensed Illinois roofing contractor and plumbing by a licensed Illinois plumber, as the City of Decatur requires state licences for both trades.

Keep reading

What usually comes next once you are planning a build in Decatur.

Nearby areas we build in

Barndominium builders in Christian County

Springfield, Decatur & the Capital Region

Barndominium builders in Springfield

Sangamon County

Barndominium builders in Champaign

Champaign County

Ready to build in Decatur?

Answer a few questions about your land, size and budget. We will come back with a plan, a price range for your parcel, and the permit path for where you are building.