Missouri County Coverage
Single-Level Homes & Barndominiums in Franklin County, Missouri
Franklin County runs from the Missouri River at Washington to the Meramec and I-44 corridor, with Union as the county seat. It has an adopted residential code and hospitals in Washington and Sullivan, and it suits St. Louis-area families looking for land and a home on one level.
New Build — Not a Barn Conversion. DreamStart homestead shells are purpose-built, single-level homes using Solid-Core SIP panels, designed from the start as a permanent residence rather than a converted farm building. Your home starts as a home.
Franklin County at a Glance
Official contacts and public data for Franklin County, with the source for each.
📋 Who to call first
We haven't received Franklin County's written answers yet, so we don't publish permit, zoning or setback rules for it. Before you buy land, call the County Clerk and ask what applies to your parcel.
Franklin County Clerk
400 East Locust, Room 201, Union, MO 63084
(636) 583-6355Source: Missouri State Tax Commission county clerk list, August 2025
📐 Building code
According to the state's county building-code table, Franklin County has adopted the 2015 IRC residential code. Cities inside the county may have their own codes, and permits, zoning and septic rules can still apply. We haven't received Franklin County's written answers yet, so call the Franklin County Clerk at (636) 583-6355 before you buy land.
Source: Missouri Department of Economic Development, County Building Codes for Missouri (data.mo.gov), updated August 2021
🗺️ People and land
County seat
Union
Population (2020)
104,682
Land area
922 sq mi
People per sq mi
114
Homes (2020)
45,275
From St. Joseph
223 miles
Source: U.S. Census Bureau, 2020 Census. Distance is straight-line.
🏥 Nearest emergency room
Franklin County has 2 hospitals with emergency rooms, including Mercy Hospital Washington in Washington and Missouri Baptist Sullivan Hospital in Sullivan.
Source: CMS Hospital General Information (hospitals with emergency services)
Aging in Place in Franklin County
With about 114 people per square mile, Franklin County keeps services and family close. Franklin County has 2 hospitals with emergency rooms, including Mercy Hospital Washington in Washington and Missouri Baptist Sullivan Hospital in Sullivan. Every DreamStart design is one level on a slab with no stairs: a zero-step entry, wide doorways and a curbless shower, so the home still works if a knee, a hip or a wheelchair changes how you get around.
What DreamStart provides for Franklin County projects
Custom documentation
Structural plans, foundation anchor-bolt layout, and energy compliance documents are prepared when the permit office or lender requires them.
EPS panel order
Your GC secures third-party certified EPS panels directly from EPS at DreamStart's quoted pricing, with quality documentation for appraisers, lenders, and insurance carriers.
Local builder handoff
You select, contract, and pay your local GC; that builder separately quotes and performs shell erection, then you finish the interior on your timeline.
Why SIP Construction Works in Franklin County
Six reasons metro-adjacent Missouri builds choose Solid-Core SIP over stick-frame.
Weather-Tight in 3–5 Days
SIP panels arrive factory-cut to your exact dimensions — secured directly from EPS by your GC at DreamStart's quoted pricing. In Franklin County's active construction market, speed matters — Your local builder separately contracts to assemble a weather-tight shell in 3–5 days, bypassing the extended framing and sheathing timelines that slow conventional builds in busy metro-adjacent counties.
R-26+ Walls, R-40 Roof
Solid-Core SIP panels deliver R-26+ walls and R-40+ roof performance. For Franklin County buyers commuting to a nearby metro, energy bills compound over time — SIP construction's thermal envelope means meaningfully lower monthly operating costs versus a comparably sized stick-frame home.
Permit-Ready Drawings
DreamStart coordinates engineering documentation — including stamped drawings when required by the county or lender — plus foundation specs and energy compliance documentation. In a county with active code enforcement, a complete, professionally prepared drawing package is the difference between a smooth single review and repeated resubmissions.
USDA Loan Eligible
Many rural parcels in Franklin County qualify for USDA Rural Development financing, even in metro-adjacent counties — eligibility is determined by parcel location, not the county's overall character. DreamStart coordinates the full lender documentation package to support your loan application and appraisal.
Owner-Builder Friendly
Missouri allows owner-builders to self-contract interior finish work. Even close to the metro, the owner-builder option lets you control interior costs— your GC secures EPS panels directly from EPS at DreamStart's quoted pricing, then a local builder you hire separately contracts to erect a code-compliant, weather-tight shell, and you set the pace and scope of your interior finish.
EPS Authorized Dealer
DreamStart is an EPS Authorized Dealer. Our panels meet third-party certified foam density and quality standards — important documentation for Franklin County's active code-enforcement environment and for construction lenders who require material certification.
Planning to stay for good? Every DreamStart design is one level on a slab, with no stairs. See what goes into an aging-in-place home in Franklin County: a zero-step entry, wide doors and a curbless shower.
Franklin County — Frequently Asked Questions
Building codes, hospitals, timelines and financing for Franklin County, Missouri.
Does Franklin County, Missouri have a building code?+
Where is the nearest hospital emergency room in Franklin County?+
How long does it take to build a homestead shell in Franklin County?+
Can I finance a barndominium in Franklin County MO?+
Does DreamStart serve Franklin County, Missouri?+
Serving Franklin County, Missouri
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