Subdivision Rules

Splitting Land Can Trigger Williamson County Plat Review

Dividing rural land in Williamson County can be a county review matter, even when the land sits outside any city. The county's Development Services and Drainage page links the Williamson County Subdivision Regulations and notes that each revised version applies to new applications received on or after its effective date, with revisions running through March 2025.

The county's Road and Bridge page adds that the County Engineer/Road and Bridge Division enforces development requirements in those regulations and inspects subdivision road construction and utility installation in county right-of-way.

Before selling a cut-out tract, recording a plat, or promising road access, check with Williamson County Development Services. If the land is in a city's ETJ, city plat approval or coordination may also be part of the process.

Source to confirm: Williamson County - Development Services & Drainage

More Williamson County notes

Property Tax Basics

Two Offices Handle Your Property Tax in Williamson County

The appraisal district sets your property's value and the tax office collects the money, and they are separate offices.

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Homestead Exemption

Texas Homestead Exemption Cuts Your School Tax Bill

Williamson County homeowners who live in their home can apply for a $140,000 reduction off the value used to figure school taxes.

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Age 65 / Disability Exemption

Extra Property Tax Breaks for Seniors and Disabled Homeowners

Homeowners who are 65 or older, or who have a qualifying disability, can get an additional property tax exemption and a school tax freeze.

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Disabled Veteran Exemption

Veterans with Service Disabilities Get a Property Tax Break

Texas veterans with a service-connected disability rating of 10% or more qualify for a property tax exemption in Williamson County.

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