Looking for an addition contractor in Cave Junction, OR? Describe your project once and up to five addition contractors who work in Cave Junction and Josephine County get back to you with a quote. It's free and there is no obligation.
Cave Junction is home to about 2,092 people (2024 Census Bureau estimate), a stable community (−0.3% since 2020). With 1,162 people per sq mi, it is a suburban area. Growing families here often add space instead of moving.
Cave Junction at a glance
- Population (Census Bureau estimate, 2024)
- 2,092 (−0.3% since 2020)
- Rank in Oregon
- 120th of 240 cities and towns
- Land area
- 1.8 sq mi
- Population density
- 1,162 people per sq mi (suburban)
- Type
- City (Cave Junction city)
- Main county
- Josephine County
What to check before hiring in Cave Junction
- Zoning: check Cave Junction's setbacks, lot coverage and height limits first.
- License and permit: in Oregon, 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 Cave Junction
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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 Cave Junction
How much does an addition cost in Cave Junction, OR?
It depends on size, foundation and finishes. Describe your project: contractors who serve Cave Junction 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 Cave Junction 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.