CASSINI LABS / EXPERIMENTAL DEPARTMENT Explore Labs

Office status: Open — most residential permit applications are decided within 12 business days

What do you need to do?

Harlow County handles residential, commercial, and special-event permits through one review path, so your application’s status always means the same thing. Choose a task to get started.

Service eligibility

Which permit applies to you?

Harlow County reviews three permit categories. Each has its own document checklist and typical turnaround, and each requires the work or event to be within the county’s incorporated limits.

Residential addition or remodel

Additions, room conversions, decks, and structural remodels on a single-family or duplex property.

Typical decision time: 12 business days

Commercial signage

New or replacement signage on a commercial property, including illuminated and projecting signs.

Typical decision time: 10 business days

Special event

Temporary use of public or private property for a scheduled community, commercial, or private event.

Typical decision time: 15 business days

How review works

How a permit application is reviewed

The same review path for every application, so status always means the same thing.

  1. Guided eligibility path

    A short set of questions determines which permit type applies and what documents are required.

  2. Application intake

    You submit the application with required documents and receive a reference number.

  3. Reviewer assignment

    Your application is assigned to a reviewer based on permit type and current queue load.

  4. Review & decision

    The reviewer checks the application against requirements. If something is missing, you'll get a specific deficiency request rather than a generic denial.

Upload documents

Document checklist

Select your permit type to see what’s required. Click an item to mark it attached — this demo tracks your progress in this browser only.

0 of 3 documents marked attached

Check status / Fix a deficiency

Look up your application

Enter your reference number to see the current stage, full status history, and — if your reviewer requested something — exactly what’s needed and how to respond.

Demo reference numbers: HC-2026-4452 (deficiency), HC-2026-4460 (in review), HC-2026-4449 (approved).

Get help

Help and accessibility

Talk to the permitting office

Office hours: Monday–Friday, 8:00 AM–4:30 PM. Phone and in-person help is available for every task on this page, including applications started elsewhere.

Accessibility on this site

Every step on this page — the eligibility wizard, document checklist, and status lookup — can be completed with a keyboard alone, and no status is shown using color as the only signal. If something isn’t working with a screen reader or assistive technology, tell the office and they’ll complete the task with you directly.

What “deficiency” means

A deficiency is not a denial. It means your reviewer needs a specific item — like an updated site plan — before they can continue. You’ll always see exactly what’s requested, not a generic “incomplete” status.