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Permits and zoning · Johnston County, NC

Do I need a permit to put a mobile home on my land in Johnston County?

Yes. In North Carolina a manufactured home is set under a setup permit from the local inspections office, and the lot needs zoning sign-off before that. Johnston County publishes "Single and Doublewide Mobile Homes" on the county's own website — read it before you call, and bring it when you apply.

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Short answer: In Johnston County the permits, in order, are: Zoning, Well/Septic, Building & separate Trade permits- deck permit if over 36 sf (MMHG field research, 2026-09-03). One thing the county cannot do: refuse manufactured homes everywhere in its jurisdiction, or refuse them because of the home's age. State law forbids both. It can limit them to certain districts and set conditions — and that distinction is the whole question.

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Buying land in Johnston County for a mobile home? The Land Check reads Johnston County's own permit rules for the one parcel you give us, and says where each answer came from and when.

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What is true in North Carolina

G.S. 160D-910(c): "A local government may not adopt or enforce zoning regulations or other provisions that have the effect of excluding manufactured homes from the entire zoning jurisdiction or that exclude manufactured homes based on the age of the home."
NC General Statutes, G.S. 160D-910(c) · checked 2026-09-04
G.S. 160D-910(d): "A local government may adopt and enforce appearance and dimensional criteria for manufactured homes." — so a county can say where and how, not whether.
NC General Statutes, G.S. 160D-910(d) · checked 2026-09-04
Manufactured home setup and installation in North Carolina is regulated by the Office of State Fire Marshal, Manufactured Building Division; the permit and inspections come from the local inspections office.
NC Office of State Fire Marshal, Manufactured Building · checked 2026-08-28
Johnston County publishes its own manufactured home requirements: "Single and Doublewide Mobile Homes".
Johnston County: Single and Doublewide Mobile Homes · checked 2026-09-03

What to check first

Start with the exact property, quote, record, or job detail behind your question. Mark what is confirmed, what still needs a current source, and who must answer it. Use the checklist to keep the next call, document, or decision clear.

Zoning sign-off comes first: the Johnston County planning office confirms the district allows a manufactured home on that lot and what conditions apply.

The setup permit is for the home itself — piers, anchoring, connections and the inspections that follow — and it is issued by the local inspections office.

If the lot is not on public sewer, the septic permit from environmental health comes before the home is set.

Step 1

Read Johnston County's own page (linked below) and note which office issues each permit.

Step 2

Call the planning office with the parcel number and ask two things: is a manufactured home allowed in this district, and what conditions apply.

Step 3

Line up septic or sewer, then the setup permit, then the inspections — and keep every approval in writing.

Details to Sort

The checks that usually matter before you commit money.

Can Johnston County say no to mobile homes altogether?

No. Under G.S. 160D-910(c) no North Carolina local government may adopt or enforce rules that exclude manufactured homes from its entire zoning jurisdiction, or exclude them because of the home's age. What Johnston County can do is decide where they go — by zoning district — and set appearance and dimensional conditions under 160D-910(d). So the answer to "can I put a mobile home here" is never "the county bans them"; it is "which districts, and on what conditions." Checked against the statute on 2026-09-04.

Which Johnston County office do I call?

Start with planning and zoning for the district and the setbacks, environmental health for well and septic, and the inspections department for the setup permit and the inspection list. Johnston County publishes "Single and Doublewide Mobile Homes" on the county's own website — read it before you call, and bring it when you apply. County requirements can vary, and homeowners should confirm current requirements with the local planning, zoning, building, and environmental health offices.

Manufactured Home Land Check

This page answers the question for Johnston County in general. A Land Check answers it for your parcel: zoning district, wastewater, access and the permits in order.

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Common questions

Can Johnston County ban mobile homes?

No. State law (G.S. 160D-910(c), checked 2026-09-04) forbids any North Carolina local government from excluding manufactured homes from its whole jurisdiction or by the home's age. The county can restrict them to certain zoning districts and set appearance and size conditions.

Are singlewide homes allowed in Johnston County?

YES - Zoning Districts allowed; AR, R-MHP & MH overlay district - min 1 acre lot. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Is there a minimum width for the home?

No. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Is a minimum roof pitch required?

Not stated in the county's published rules. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

What are the zoning setbacks in Johnston County?

AR - 50 front, 20 interior property lines - RMHP 50 front, 20 side/rear. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Are the setbacks different in a mobile home park?

20 feet min separation from another home. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Are poured footers required in Johnston County?

No. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Is there a drainage rule beyond the state's?

½” per foot for a minimum of first 10’. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Is masonry or brick skirting required in Johnston County?

brick curtain wall or ABS/PVC plastic color skirting with interlocking (keylocked) edges. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Is a gravel driveway acceptable?

Does not mandate a specific rigid surface. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Are there tree-cutting rules in Johnston County?

Not at this time; there are new rules proposed. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Any other environmental rules to know about?

Stream buffers, Protected Wetlands, watersheds - ES areas - Environmentally Sensitive Areas. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Which permits does Johnston County require, and in what order?

Zoning, Well/Septic, Building & separate Trade permits- deck permit if over 36 sf. (MMHG field research in Johnston County, 2026-09-03. Confirm with the county before you rely on it; rules change.)

Is there an age limit on a mobile home in Johnston County?

The line that matters is June 15, 1976, when the federal HUD code took effect; homes built before it are treated differently by lenders and installers. Johnston County adds no age rule of its own (MMHG field research, 2026-09-03).

Who sets the septic setbacks in Johnston County?

The state's wastewater rules set the distances from the home, the well, surface water, property lines and the repair area; the county health department applies them when it issues the septic permit. Johnston County adds nothing beyond the state rule (MMHG field research, 2026-09-03).

Are there special rules for steps and decks in Johnston County?

Steps, landings, decks and handrails follow the state building code. Johnston County requires nothing beyond it (MMHG field research, 2026-09-03).

Are gutters required on a mobile home in Johnston County?

No. Johnston County does not require gutters (MMHG field research, 2026-09-03).

Is seed and straw or landscaping required in Johnston County?

No landscaping requirement in Johnston County (MMHG field research, 2026-09-03). One exception applies everywhere: a site on a steep slope needs soil stabilization, and that can bring an engineer or a stormwater inspector into the job.

What size do the 911 address numbers have to be in Johnston County?

Standard 911 address numbers, at least 4 inches tall, visible from the road. Johnston County has no special requirement (MMHG field research, 2026-09-03).