Unincorporated Hays County
Hays County, Texas
Last verified September 16, 2026
Unincorporated Hays County is the unincorporated portion of Hays County, Texas — the area outside the limits of any city or town, with an online portal for searching and pulling active or historical building permits. Use the contact information below to reach the local building department, or the mailing address if the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.
Contact
- Phone
- 512-393-2150
- permits@co.hays.tx.us
- Department Site
- Hays County Development Services (opens in a new tab)
Permit Search
Certificate Holder Mailing Address
Hays County Development ServicesSan Marcos, TX 78666
Use this address when the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.
Additional Notes
Development permit required for all development in unincorporated Hays County; building code adopted via the International Fire Code for multi-family/public/commercial buildings.
What You Need Before Applying for a Permit
Most building departments ask for the same core package before they'll issue a permit: a completed application naming the property owner and contractor, the contractor's state license number and proof of insurance (general liability, and workers' comp if employees are on the job), a notice of commencement or equivalent recorded filing for larger jobs where the state requires one, and scaled plans or a site plan for anything beyond minor repairs. Roofing, fence, pool, and solar permits typically have their own simplified checklists — Unincorporated Hays County's department (above) can confirm exactly what applies to your project.
Why this matters for insurance: permit history is one of the first things an underwriter or adjuster checks. Unpermitted work — a finished basement, an added bedroom, a rebuilt roof — can complicate a claim or even void coverage for that portion of the loss, and it routinely surfaces during a home inspection. Pulling the right permit up front, and keeping the closed-permit record on file, protects both the property's value and its insurability at resale.
More in Hays County
See Hays County property and court records →
Other building permit jurisdictions in Hays County: