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This Is Especially Important Locally
Clark County states that accessory buildings, casitas, carports, shade structures, covered patios and room additions constructed without valid building permits are illegal regardless of age and must meet applicable permit and zoning requirements.
Henderson also regulates construction, alteration, enlargement, repair and occupancy under its adopted building codes and maintains address-based permit records.
Common Examples
- Garage conversion
- Patio enclosure
- Additional bedroom
- Casita
- Electrical changes
- Plumbing additions
- Wall removal
- Added bathroom
- Pool structure
- Shed
"THE PREVIOUS OWNER DID IT" DOES NOT MAKE IT PERMITTED
The current owner may not have created the condition. The property can still have the issue.
What Should the Seller Do?
First determine:
- What was built?
- When?
- Is there a permit record?
- Was it finaled?
- Does assessor or MLS square footage match?
- Does zoning allow the use?
Post-Construction Permitting
Some jurisdictions may provide processes for bringing existing construction into compliance, but requirements vary.
Important
DO NOT PROMISE A SELLER "WE'LL JUST PULL A PERMIT." The structure may need plans, inspections, corrections, engineering, or removal. What is possible depends on the jurisdiction, the work, and the current code.
Value Problem
Example
Seller says: "My house is 2,400 square feet."
Official permitted home: 1,900 square feet.
Garage conversion: 500 square feet.
You cannot blindly value the house as a legal 2,400-square-foot residence without investigating.
How Lisa Helps
Lisa can compare how buyers may perceive the space, what official records indicate, comparable properties, and whether permit investigation before listing is worthwhile. This is one of the places where local knowledge matters enormously.
Before Assuming an Addition Is Legal
Important
BEFORE ASSUMING AN ADDITION IS LEGAL. Southern Nevada properties may fall under different building jurisdictions: Henderson, the City of Las Vegas, North Las Vegas, or unincorporated Clark County. They have different permitting offices and records. Do not contact Clark County automatically just because the property is geographically within Clark County. Determine the actual jurisdiction first. For unincorporated Clark County, current county guidance states that unpermitted room additions, casitas, patio structures and other specified residential structures remain violations regardless of age until properly addressed. Henderson adopted updated building codes effective January 2, 2026 and maintains permit records by property address. Verify current details and cite the official jurisdiction page: Clark County Building & Fire Prevention, Henderson Building & Fire Safety permits, City of Las Vegas Building & Safety, North Las Vegas Building Safety. Last verified September 2026.
