Plymouth County, Iowa Sioux City & Northwest Iowa

Barndominium Builders in Plymouth County, Iowa

Plymouth County is farm country first, with its county offices in Le Mars and wide stretches of cropland between the towns, and that shapes how a barndominium gets approved here. Iowa Barndominium Builders works as barndominium contractors for buyers who want a home and a working shop on rural ground, and we also ship barndominium kits to owners who want to handle the erection themselves. The county's Planning and Zoning Department issues building and zoning permits for unincorporated land, and its zoning ordinance is written to keep farmland in production. That means the first thing we check on any parcel is not the floor plan but whether the zoning district allows another house there at all. Wells and septic systems run through the county sanitarian as a separate permit. The facts below are taken from the county's own ordinance and department pages. If you are weighing a tract anywhere in or near Plymouth County, [start the survey](/survey/) with the parcel location, your acreage and the size of home and shop you want, and we will tell you what the county will want to see.

Plymouth County at a glance

County: Plymouth 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 Plymouth 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

Plymouth County Planning & Zoning (Zoning Administrator)

Plymouth County's Planning and Zoning Department issues building permits and zoning permits for the unincorporated county and enforces its zoning, subdivision and floodplain ordinances. Land inside a city's limits is regulated by that city.

Source: Planning & Zoning - Plymouth County Iowa (plymouthcountyiowa.gov)

One new home per quarter section: In the A-1 Primary Agricultural District, acreage dwellings not tied to a farming operation are limited to one new dwelling unit per quarter section, and must meet the ordinance's agricultural separation standards.
A-1 lot size: A residential dwelling in the A-1 district needs a 2-acre lot with 300 feet of width; the ordinance table sets a 40-foot maximum height for it.
Loess Hills overlay: In A-1, a conditional use permit is required for single-family dwellings on farmsteads within the Conservation and Loess Hills Overlay Districts, and for development in the Loess Hills Sub-District Overlay.
What counts as agriculture: The ordinance's definition of agricultural use excludes any parcel of land of less than twenty acres.
Well and septic permits: Well and septic permits are required from the Plymouth County Sanitarian and are valid for one year. A new home or septic system needs a permit before installation, and a new system needs a site analysis to set its location and the amount of leach line.

Building on land near Plymouth County

Because the A-1 district allows only one new non-farm house per quarter section, a buyer can find a pretty parcel and still be told the quarter's allotment is used up. Ask the zoning office before you close. Under 20 acres, the ordinance's definition of agricultural use does not reach the parcel, which matters if you were counting on the farm exemption. Where a Loess Hills overlay is mapped, a farmstead house also needs a conditional use permit. Once the site clears, our [site preparation](/services/site-preparation/) crew builds the pad and drive, and the sanitarian's site analysis tells us where the leach field can go.

Where we build in this part of Iowa

Sioux City & Northwest Iowa

Sioux City
Woodbury County
Plymouth County

What we build in Plymouth 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 floor plans drawn for your Iowa parcel: slab or basement, septic sized to bedroom count, design values from your own jurisdiction.

Barndominium Kits

Barndominium kits for Iowa land: steel or post-frame shell packages drawn to the design criteria your own county or city publishes, delivered to your site.

Turnkey Builds

Barndominium builders in Iowa for the whole job: site work, foundation, shell and interior finish under one contract, with county permits handled in order.

See every service

Have land in or near Plymouth 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.

Start your build survey

Building in Plymouth County: questions

Start the survey

How much does it cost to build a barndominium in Plymouth County?

Budget swings on a Plymouth County build mostly come from the ground: well depth, the septic design the site analysis calls for, driveway length and any grading on sloped ground. After that, frame type and interior finish set the total. Our barndominium cost guide lays out the cost drivers with third-party figures; the survey lets us price your specific parcel.

Do I need a permit to build a barndominium in Plymouth County?

Yes. The county Planning and Zoning Department issues the building and zoning permits for unincorporated land, and in a Loess Hills overlay a farmstead dwelling also needs a conditional use permit. Well and septic permits come separately from the county sanitarian. Iowa law exempts genuine farm buildings from county zoning, but the county decides what qualifies; our permitting service prepares the application.

Can I get pole barn homes or metal building homes near Plymouth County towns like Le Mars?

Yes. We build post frame homes and pole barn homes on wood columns, and metal building homes on steel frames, for rural sites across the county. Pick the frame for the spans and doors your shop needs, then choose an interior from our floor plans.

Keep reading

What usually comes next once you know what Plymouth 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 Iowa?

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 Plymouth County facts above. Rules change, so check the current version with the office before you rely on it.

Barndominium builders near Plymouth 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.

Woodbury County

Iowa county

Sioux City

Woodbury County, Iowa

Building in Plymouth 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