Building permits, zoning and land rules in Newton County, Texas

Newton County requires every new development project to go through a Floodplain Development Application before construction starts¹. The scope includes new construction, subdivisions, RV parks, mobile homes, tiny homes, portable buildings, and substantial improvements⁴. Work cannot begin until the Floodplain Administrator issues an Authorization to Proceed⁴.

For projects in the floodplain process, the applicant consents to reasonable compliance inspections and the Floodplain Office completes its final compliance review from a project inspection⁸. We could not confirm a separate general residential building-code permit, inspection program, or certificate-of-occupancy requirement. Ask the Newton County Floodplain Office what additional approvals apply to the exact parcel and structure¹.

Start with the Newton County Floodplain Office at 509 Main St, Newton, TX 75966; call (409) 379-2169 or email floodplain@co.newton.tx.us¹. The county asks visitors to call for an appointment¹. The county publishes a $40 development permit fee and a $20 Letter of Zone Determination fee⁷. Rules inside an incorporated city can differ from the county's, and septic permits are a separate state-supervised approval, not part of the floodplain permit. The office receives the development application, determines requirements based on the site and project, and conducts the inspections needed to verify floodplain compliance^4,8.

We could not independently confirm Newton County’s current OSSF permitting authority³. Ask the Floodplain Office to identify the current authorized agent¹. In Texas, a local authorized agent issues OSSF permits where one exists; otherwise, the appropriate TCEQ regional office does³.

Unincorporated Newton County has no county zoning rule setting minimum dwelling size, minimum lot size, setbacks, lot coverage, building height, accessory-dwelling restrictions, RV occupancy limits, manufactured-home occupancy limits, or temporary-camping limits². Texas grants counties zoning authority only in limited statutory settings².

No zoning limit does not mean no county process. A new house, tiny home, mobile home, portable building, RV park, or subdivision must still go through the Floodplain Development Application⁴. Outside municipal limits, dividing land into two or more lots of five acres or less for residential use requires a subdivision plat; the final plat must be approved, filed, and recorded before the subdivided land is sold or conveyed⁵. Incorporated-city rules can differ.

Texas generally requires a permit and approved plan before an on-site sewage facility is constructed, installed, altered, extended, or repaired³. We could not confirm Newton County’s current authorized agent, so ask the Floodplain Office to identify the correct OSSF authority before hiring a designer^1,3.

A property owner may install an OSSF serving the owner's single-family home only if the permitting authority allows owner installation, the owner has the necessary knowledge, skills, and equipment, and the property is not being developed for sale or lease³. This is not a blanket owner-builder exemption from building or floodplain requirements³.

The state exemption for a single-family home on at least 10 acres requires a licensed site evaluation, only one dwelling, every system part at least 100 feet from the property line, and other conditions³. Only 12.8% of Newton County soils are rated without severe limits for a conventional drain field, so arrange the evaluation early⁹.

Unincorporated Newton County has no county zoning restriction on RV occupancy, temporary camping, manufactured-home occupancy, accessory dwellings, minimum dwelling size, or minimum lot size². That answer does not settle sanitation, floodplain, deed, subdivision, or city requirements.

Newton County includes RV parks, mobile homes, and tiny homes among new development requiring a Floodplain Development Application⁴. We could not confirm a certificate-of-occupancy rule or a separate rule for full-time occupancy of one RV outside an RV park. Describe the use and utility plan to the Floodplain Office before moving an RV or ordering a tiny home¹.

1. Contact the Floodplain Office and submit the application before construction¹.

1. Wait for the flood determination and additional requirements; the published process allows up to 30 days⁸. Do not start until authorization issues⁴.

1. Confirm the current OSSF authority and arrange a site evaluation³.

1. Register a planned well with the groundwater district⁶.

1. Include driveway or culvert work in county review⁸. State-highway access requires TxDOT Form 1058¹⁰.

1. Confirm any city, subdivision, deed, utility, or building-code requirement.

Check the flood determination first because Newton County puts all new development through its application process⁴. Check septic feasibility because only 12.8% of county soils are rated without severe limits for a conventional drain field⁹. Check road frontage and culvert needs, and use TxDOT’s process for a state-highway connection^8,10.

A private well must be registered even when permit-exempt⁶. If a seller divided unincorporated land into two or more residential lots of five acres or less, verify that the final plat was approved and recorded before sale⁵. The nearest city of 100,000 or more people is about 49 miles from the county center⁹. The effective property-tax rate is about 1%, the median annual bill about $856, and typical home value about $152,252⁹.