Here's a question worth asking before you sign a purchase agreement on that twenty-acre parcel outside Bismarck: which permit do you need first, the one for the house or the one for the driveway?
Most buyers assume it doesn't matter. Land closes, plans get drawn, a builder breaks ground. But in Burleigh County's extra-territorial area around Bismarck, the building department will not issue your residential building permit until you already hold an approved road approach permit from the county highway department. The house permit depends on the driveway permit. Not the other way around, and not at the same time.
That single sequencing rule is the tip of a larger pattern. Building custom on rural acreage near Bismarck-Mandan isn't governed by one clear checklist. It's governed by a stack of separate approvals, each with its own office, its own timeline, and its own quiet way of resizing what you thought you were buying. The acreage number on the listing tells you almost nothing about how the transaction will actually unfold.
The Permit That Has to Exist Before You Apply for a Permit
Bismarck's own residential building permit checklist spells it out directly: a copy of an approved road approach permit must be submitted with every residential permit application for a project inside the city's extra-territorial area, and the building department will not issue a permit without it. The county highway department, not the city, controls that first approval.
Burleigh County's road approach process runs like this:
- Contact the Burleigh County Highway Department and request an approach permit. The fee is $50.
- Engineering staff conducts an on-site survey to check drainage, sight distance, and the culvert size the approach will need.
- Depending on seasonal workload, expect one to three days for that site inspection.
- The county records the approved permit at the County Recorder's office, notarizes it, and mails it back to you.
- Only after that paperwork is in hand can you submit your building permit application.
The part that catches people off guard isn't the fee or the wait. It's the limit. Burleigh County allows rural properties only one approach. If your parcel already has an access point from a previous owner or a shared driveway arrangement, and your build plan calls for a second entrance, you don't just apply for it. You submit a written request with a legal description, a plat map, and a hand-drawn site sketch, and the County Engineer brings it to the County Board at a regular monthly meeting. The second approach also has to sit at least 100 feet, center to center, from any existing approach. If the board says no, your only path forward is an appeal back to that same board.
None of this shows up on a listing sheet. It shows up when your contractor asks where the driveway goes and the answer depends on a meeting that hasn't happened yet.
What "Ten Acres" Actually Means to Your Lender
Morton County's own guide for people planning to build tells prospective buyers something most land listings never mention: many lenders will not originate a mortgage on a property greater than 10 acres. The county isn't warning you away from big parcels. It's warning you that the number on the plat and the number your lender is willing to finance are not always the same number.
The Bank of North Dakota's rural mortgage program, the backstop the state built specifically for rural residential financing, states its own preference plainly: eligible property should be residential with no more than 40 acres, and preferably 10 acres or less. That's the state's own bank, built to serve rural borrowers, still drawing the line near ten acres.
The practical effect is this. When a property runs larger than that threshold, a lender's appraisal typically won't credit the full acreage toward the loan. The acreage above that line doesn't disappear from the deed, but it stops counting toward what the bank will lend against. Buyers who assumed their down payment covered "the land" often discover it only covered the first ten acres of it, and the rest has to come from cash they didn't plan to bring to closing.
This is worth confirming with a lender before you write an offer, not after your loan officer runs the appraisal. A parcel that looks like a bargain per acre can turn into a much larger cash requirement than the price per acre implies, simply because of where the ten-acre line falls on your specific plat.
The Septic Formula That Quietly Resizes Your Building Envelope
Even once the road approach and the financing line up, the septic permit can still shrink where your house is allowed to sit. Burleigh County's septic system permit allows an alternative sizing method of 350 square feet of drainfield per bedroom, but it comes with hard limits: no individual drain run can exceed 100 feet, and trench depth can't run deeper than four feet or sit closer than two feet above any water table or soil mottling.
On a flat, generously proportioned lot, that math rarely causes a problem. On a lot with slope, a high water table, or an irregular shape, a five-bedroom plan can suddenly require more contiguous, level, well-draining ground than the parcel actually offers in the spot you pictured your house. That's a conversation to have with a septic contractor before your architect finalizes a floor plan, not after the foundation is staked.
Frost, Code, and Who's Actually Enforcing What
North Dakota's frost depth runs between 48 and 60 inches, deepest in the western part of the state, which means footings for a rural custom home have to reach well below four feet to avoid frost heave. That's a real cost driver for foundation work regardless of where you build.
What varies is who checks that you did it right. North Dakota's State Building Code was updated effective January 1, 2026, to the 2024 editions of the International Building, Residential, Mechanical, and Fuel Gas codes. But enforcement in North Dakota is opt-in. Cities like Bismarck and Mandan actively enforce the code through their building departments. Many rural townships have not adopted any building code enforcement at all, which means general construction in some pockets outside city limits carries no local building permit requirement whatsoever, even though electrical and plumbing permits are still required statewide through the State Electrical and Plumbing Boards. Two properties a few miles apart can sit under entirely different levels of scrutiny, and the only way to know which rules apply to your specific parcel is to ask the township or county directly.
Who to Call Before You Write an Offer
If you're serious about a rural parcel near Bismarck or Mandan, these are the calls that belong before the purchase agreement, not after:
- Burleigh County Highway Department for the road approach permit and whether your parcel already has one on record.
- Burleigh County Building, Planning and Zoning for the septic permit application and whether the county or a township enforces the state building code on that specific parcel.
- Morton County Planning and Zoning if the land sits on the Mandan side, to confirm the parcel is entitled for a residence and isn't one of the non-conforming lots the county flags as needing a subdivision process first.
- A local construction lender who already handles rural acreage financing. Capital Credit Union, with offices in Bismarck and Mandan, offers dedicated lot loans and new construction loans that convert into permanent financing once the home is built. First Community Credit Union structures its construction draws in stages tied to completed work, with interest-only payments during the build. Ask any lender directly how they treat acreage past the ten-acre mark before you assume your pre-approval covers the whole parcel.
A Few Questions Worth Asking Directly
Can I request a second driveway approach on a rural parcel I already own? Yes, but it isn't automatic. You submit a written request with maps and a site sketch to the Burleigh County Engineer, and the request goes to the County Board for approval at a regular monthly meeting. If it's denied, you can appeal the decision back to the board.
Does a USDA loan avoid the ten-acre financing issue? Even USDA-oriented rural financing through the state's own program lists a preference for parcels at or under ten acres, so the safest move is to ask your specific lender how they treat your parcel's acreage before assuming any loan type sidesteps the appraisal cap entirely.
Is the building code the same whether I'm inside Bismarck's city limits or out in the county? Not necessarily. Bismarck and Mandan actively enforce the 2024-edition state building code. Some rural townships haven't adopted any building code enforcement at all, so the applicable rules depend on the specific township or county jurisdiction your parcel sits in.
Rural land near Bismarck-Mandan rewards buyers who ask about sequencing and financing thresholds before they're under contract, not after. If you're weighing a custom build on acreage and want someone who has walked builders through this exact stack of approvals, Patrick Koski can help you map the order of operations for your specific parcel before you write an offer. Get a free home valuation and consultation to start.
