Looking for an addition contractor in Calio, ND? Describe your project once and up to five addition contractors who work in Calio and Cavalier County get back to you with a quote. It's free and there is no obligation.
Calio is home to about 6 people (2024 Census Bureau estimate), a stable community (+0.0% since 2020). With 1 people per sq mi, it is a rural area. Growing families here often add space instead of moving.
Calio at a glance
- Population (Census Bureau estimate, 2024)
- 6 (+0.0% since 2020)
- Rank in North Dakota
- 353rd of 355 cities and towns
- Land area
- 8.2 sq mi
- Population density
- 1 people per sq mi (rural)
- Type
- City (Calio city)
- Main county
- Cavalier County
What to check before hiring in Calio
- Zoning: check Calio's setbacks, lot coverage and height limits first.
- License and permit: in North Dakota, additions are built by licensed contractors under a permit.
- Structure: second stories need an engineer to check the existing house.
- Price drivers: size, foundation, roof tie-in, plumbing and finishes.
Useful official resources
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ICC: International Code Council
Official information and guidance.
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NAHB
Official information and guidance.
Services available in Calio
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Room addition
Ground-floor addition with foundation, framing, roof and finishes.
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Second-story addition
New floor over the existing house, with structural engineering.
Frequently asked questions in Calio
How much does an addition cost in Calio, ND?
It depends on size, foundation and finishes. Describe your project: contractors who serve Calio reply with a quote.
How long does it take?
Often a few months, plus design and permits.
Does an addition raise property taxes?
Usually, since it increases the assessed value.
Which addition contractors will contact me?
Up to five independent addition contractors who serve Calio and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.