Looking for an addition contractor in Shasta Lake, CA? Describe your project once and up to five addition contractors who work in Shasta Lake and Shasta County get back to you with a quote. It's free and there is no obligation.
Shasta Lake is home to about 10,244 people (2024 Census Bureau estimate), a shrinking community (−1.2% since 2020). With 940 people per sq mi, it is a semi-rural area. Growing families here often add space instead of moving.
Shasta Lake at a glance
- Population (Census Bureau estimate, 2024)
- 10,244 (−1.2% since 2020)
- Rank in California
- 374th of 482 cities and towns
- Land area
- 11 sq mi
- Population density
- 940 people per sq mi (semi-rural)
- Type
- City (Shasta Lake city)
- Main county
- Shasta County
What to check before hiring in Shasta Lake
- Zoning: check Shasta Lake's setbacks, lot coverage and height limits first.
- License and permit: in California, 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 Shasta Lake
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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 Shasta Lake
How much does an addition cost in Shasta Lake, CA?
It depends on size, foundation and finishes. Describe your project: contractors who serve Shasta Lake 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 Shasta Lake 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.