Level southern Minnesota cropland on black soil, with corn and soybean fields, a gravel road to the horizon and a distant grove windbreak under a big sky.
Lyon County, Minnesota Mankato & Southern Minnesota

Barndominium Builders in Lyon County, Minnesota

Barndominium builders near Lyon County are usually building for someone who lives in or works in Marshall, the county seat, but wants land: a few acres in a township, a farm split, or a lot at the edge of town. This page covers Marshall as well as the countryside around it. The line between the two matters more here than in most counties, because Marshall, Tracy and Ghent enforce the building code with permits and inspections while most townships do not, and the county's zoning ordinance sets a low housing density on farmland. We sell barndominium kits to owners who plan to build themselves, draw custom plans sized to a rural lot or a city parcel, and deliver turnkey homes with site preparation and the permit paperwork included. On prairie land with long views and strong wind, many buyers want a big shop and a simple, tight shell. Share the parcel location and your plans, and we will sort out which office reviews it and what the density rules allow before design starts.

Lyon County at a glance

County
Lyon County
Building permit
County or township, by location
Land use
County zoning
Wastewater
Septic (SSTS) via the county
Frost depth / snow load (state rule)
3-1/2 feet / 50 psf
Tell us about your land

Barndominium Kits & Floor Plans for Lyon County

The parcel decides the budget more than the floor area does, so each option is priced against your land rather than a rate card.

Barndominium Kits

Barndominium kits and shell kits for Minnesota land, sized to your county's state-set snow load and frost depth, with the drawings your permit needs.

Custom Plans

Custom barndominium plans drawn for Minnesota: your layout and shop, your county's snow load and frost depth, and a set ready for plan review.

Barndominium Floor Plans

Stock plans by size and layout, each a starting point adjusted to your parcel.

Pole Barn Homes near Lyon County

A pole barn home sets its frame on posts and trusses (the engineering term is post-frame), which often suits a simple, wide layout with a shop bay under the same roof. Whether it fits your parcel comes down to the zoning and the site, set out below.

Pole Barn Homes

Pole barn homes in Minnesota: pole barn house kits and plans sized to your county's snow load, with posts and footings set below the state frost depth.

Permits, Zoning & Septic in Lyon County

Who issues the permit, who zones the land and who handles septic can change at a city limit or a county line. Here is who decides each part in Lyon County, taken from the office or document that publishes it. Rules change, so check them again against your parcel before anything is drawn.

Who issues the building permit County or township, by location

City building departments in Marshall, Tracy and Ghent; Lyon County Planning and Zoning elsewhere

In Lyon County, 3 of the 31 cities and townships in DLI's directory have adopted the State Building Code: Marshall, Tracy and Ghent, which permit inside their limits. Minnesota's State Building Code is the construction standard everywhere, but in the other townships and cities it is not enforced locally with inspections. On land outside the cities, the county zoning ordinance exempts only structures of 65 square feet or less from its building permit.

Source: The Lyon County Zoning Ordinance (effective April 1, 2015) (lyoncountymn.gov)

Who decides the land use County zoning

Planning and Zoning, Lyon County

Lyon County's zoning ordinance, effective April 1, 2015, regulates land use and population density in the parts of the county outside the incorporated limits, including township land. Districts include A Agricultural, RR Rural Residential, UE Urban Expansion near the cities, UV Unincorporated Village, C-I Highway Commercial and an older R Suburban Residence district in which no new districts may be created. Shoreland and floodplain rules sit on top.

Source: The Lyon County Zoning Ordinance (effective April 1, 2015) (lyoncountymn.gov)

Sewer or septic Septic (SSTS): county

Planning and Zoning, Lyon County

Lyon County Planning and Zoning administers the state SSTS rules through its local septic ordinance and permits systems up to 10,000 gallons per day. Inspections are required for all new and replacement systems, systems must comply at property transfer, and existing systems are inspected for a bedroom addition or for any building permit or variance in a shoreland area.

Source: Septic Systems, Planning and Zoning, Lyon County (lyoncountymn.gov)

Is the State Building Code enforced here?

In Lyon County, 3 of the 31 cities and townships in DLI's State Building Code Jurisdiction Directory have adopted the State Building Code, including Ghent, Marshall, Tracy; elsewhere the county's zoning, shoreland and septic rules still apply.

Source: State Building Code Jurisdiction Directory (Local Code Lookup), Minnesota Department of Labor and Industry (secure.doli.state.mn.us), read 27 September 2026. Check it again for your parcel, then call that office.

Design figures the state sets for Lyon County
Frost footing depth
3-1/2 feet (frost Zone II), unless an engineer competent in soil mechanics determines otherwise.

Source: Minn. R. 1303.1600, Footing Depth for Frost Protection (revisor.mn.gov)

Ground snow load
50 pounds per square foot of ground snow load, the starting point for the structure's snow design.

Source: Minn. R. 1303.1700, Ground Snow Load (revisor.mn.gov)

Farmland density: 80 acres per home
Section 15.11 of the county zoning ordinance sets the density factor at eighty acres (two quarter-quarter sections) in the A Agricultural district and forty acres (one quarter-quarter) in the RR and UE districts; A-district lots must be at least five acres, with smaller lots only through clustering by conditional use permit.

Source: The Lyon County Zoning Ordinance (effective April 1, 2015) (lyoncountymn.gov)

Land around Marshall held for growth
The ordinance's Urban Expansion district keeps land near the cities in agricultural, low-density residential or open-space use in large parcels, at one home per forty acres, until urban services are extended; higher densities need a rezoning to a planned unit development (read 27 Sep 2026).

Source: The Lyon County Zoning Ordinance (effective April 1, 2015) (lyoncountymn.gov)

Building inside Marshall
Marshall's Building Permits and Construction FAQ says permits are applied for online, a building official must sign the permit before work starts, and a project disturbing more than 2,000 square feet of land needs an Engineering Department land disturbance permit before the building permit can be issued (read 27 Sep 2026).

Source: Building Permits and Construction FAQ, City of Marshall (ci.marshall.mn.us)

Turnkey Builds

Turnkey barndominium builds in Minnesota: land check, plans, permits, foundation, frame and finish under one agreement, from raw land to move-in.

Site Preparation

Barndominium site preparation in Minnesota: shoreland and septic checks first, then clearing, grading, the driveway and a pad for frost-depth footings.

Permits & Approvals

Barndominium permits in Minnesota: who enforces the building code on your parcel, and the zoning, septic and well approvals that apply everywhere.

Metal Building Homes & Shouses near Lyon County

A steel frame instead of posts, or a home and a workshop under one roof: the same parcel questions apply, so start from the rules above.

Metal Building Homes

Metal building homes in Minnesota, insulated and air-sealed for a long winter, with condensation and radon handled before the walls close in.

Shouses

Shouses in Minnesota: a heated shop and a home under one roof, laid out for big doors, winter work and the separation a house needs from its shop.

Steel & Metal Building Construction

Red-iron steel frames for Minnesota barndominiums and shops: wide clear spans, roofs sized to your county's snow load, columns on frost-depth footings.

Building on land near Lyon County

Lyon County is open prairie farmland cut by river valleys and dotted with lakes, and the county keeps rural housing sparse: one home per eighty acres on agricultural land, one per forty in rural residential and urban-expansion areas, with five-acre minimum lots. Lakes and streams bring shoreland review, and the county adopted a floodplain ordinance in 2022 and publishes flood insurance rate maps. County ditches cross much of the land, and the Planning and Zoning office also handles drainage questions. Lots inside Marshall follow the city's rules instead. For land farther east, see the New Ulm page; to the north, the Kandiyohi County page.

Other places in this part of Minnesota

Mankato & Southern Minnesota

See every service

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

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Building in Lyon County: questions

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How much does it cost to build a barndominium in Lyon County?
Beyond the building itself, rural land here usually means a well, a septic system, a long driveway and wind-exposed siting, while a Marshall lot adds city connection and land-disturbance steps. Our barndominium cost guide sets out sourced ranges, and the survey is how we price your site.
Do I need a building permit for a barndominium near Marshall?
Inside Marshall, yes: apply online, and the building official signs the permit before work starts. Tracy and Ghent also enforce the code. In most townships there is no local code inspection, but the county's zoning permit, septic permit, shoreland rules, well notification and the state electrical and plumbing rules still apply. We handle permitting on turnkey builds.
How much acreage does zoning require for a pole barn house in Lyon County?
On agricultural land the county counts one home per eighty acres, so a tract generally has to contain that density factor, and each lot must be at least five acres. Rural residential and urban-expansion districts count one per forty. Landowners can apply for a density variance in the agricultural district. A pole barn home is zoned as a house, not a farm building.
Does my septic system need an inspection before I build?
New systems are always inspected. For an existing system, Lyon County requires an inspection for a bedroom addition, at property transfer, and for any building permit or variance in a shoreland area. A county septic permit is required before installation, and the design and installation are done by MPCA-licensed professionals, not by us.

Keep reading

What usually comes next once you know what Lyon 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 Minnesota?

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

Other places near Lyon County

Nearby places with their own pages. Across a city limit or a county line the permit office, the zoning and the septic rules can change, so each is covered separately.

New Ulm

Brown County, Minnesota

Kandiyohi County

Minnesota county

Willmar

Kandiyohi County, Minnesota

Building in Lyon County?

Start with the survey. Tell us where the land is and what you want on it, and we will come back with which offices decide it, what the zoning allows, and a plan to fit.

Start the survey