What Is a Certificate of Occupancy (CO) and Why Do NH Homebuyers Need One?

🏡 What Is a Certificate of Occupancy (CO) and Why Do NH Homebuyers Need One?

Whether you’re buying a newly built home in Plymouth, a renovated property in Campton, or a converted cabin in Rumney, you may run into something called a Certificate of Occupancy (CO).

A CO confirms that a property is safe, meets building codes, and is legally allowed to be lived in.

Here’s what NH buyers should know.

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What Is a Certificate of Occupancy?

A Certificate of Occupancy (CO) is a document issued by the local NH building department stating that:

✔ All required inspections have been passed

✔ The home meets current building codes

✔ It’s legally approved for people to live in

✔ Construction or renovation is fully completed

New builds, major renovations, and use-changes all require CO approval before occupancy.

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When Do NH Buyers Need a CO?

You must have a CO when:

✔ Buying a brand-new construction home

✔ Moving into a home after major renovations

✔ Purchasing a flipped property that was heavily updated

✔ A building’s use was changed (garage → studio, barn → apartment, etc.)

Lenders typically won’t allow closing without a CO on new construction.

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Why COs Matter in Central New Hampshire

In Central NH towns like Thornton, Rumney, Ashland, and rural areas:

✔ Some older homes never had COs

✔ Renovations were done without permits

✔ Additions may not be inspected

✔ Basement conversions might not be legal living space

No CO = huge risk for buyers.

It can impact insurance, appraisals, resale value, and legal occupancy.

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Common CO Issues in NH

Buyers often discover:

⚠ Missing final electrical/plumbing inspections

⚠ Unapproved bedrooms (no egress windows)

⚠ Additions done without permits

⚠ Finished basements that aren’t legal living space

⚠ Old septic systems not sized for added rooms

These must be resolved before a CO is issued.

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How Buyers Can Protect Themselves

✔ Ask for permit history

✔ Verify final inspections were completed

✔ Confirm additions match town records

✔ Ensure bedrooms meet egress code

✔ Include CO requirements in your P&S agreement (for new construction)

A clean CO = peace of mind.

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Q&A

Q: Can you close on a home without a CO?

A: Not for new construction. For older homes, it depends on the town and lender.

Q: Does every renovation require a new CO?

A: No — only major structural, electrical, plumbing, or use-change work.

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Keywords

nh certificate of occupancy, plymouth nh building codes, campton nh new construction, central nh occupancy rules, rumney nh home buying, thornton nh inspections

Jim Johnson Real Estate

Phone: 857-249-7392

Serving Plymouth, Campton & Central New Hampshire

Brokered by Three Hills Real Estate Service