Addition square footage
Quality Tier
Standard materials, solid craftsmanship
Scope of Work
Labor
Home Addition Cost: 2026 Guide
Use the calculator above to get a quick estimate. The guide below explains what drives home addition costs and what to expect from contractors in your area.
Typical Home Addition Costs
| Project Scope | Low | High |
|---|---|---|
| Simple room bump-out (100–200 sqft) | $8,800 | $16,200 |
| Standard bedroom addition (200–350 sqft) | $25,000 | $55,000 |
| Master suite with bathroom (350–500 sqft) | $55,000 | $65,000 |
| Full in-law suite or major addition (600–1,000 sqft) | $65,000 | $150,000 |
What Affects Home Addition Costs in your area?
Labor rates: Contractors in your area charge $45–$90/hour for home addition work — close to the national average.
Material costs: Material prices in the national region are close to national average due to local supply, transportation costs, and market demand.
Project complexity: Site conditions, permitting requirements, and non-standard layouts can add 15–30% to total project cost.
Frequently Asked Questions
How much does a home addition cost?
Home additions cost $25,000–$150,000 depending on size and scope. A simple bedroom addition (200–300 sqft) runs $25,000–$55,000. A master suite or in-law addition with a bathroom runs $65,000–$150,000.
What is the cost per square foot for a home addition?
Home additions cost $150–$400 per square foot fully finished. The national region averages close to national rates due to local labor market. Basic additions run $45/sqft; luxury finishes hit $90/sqft+.
How long does a home addition take?
A standard bedroom addition (200–400 sqft) takes 2–4 months from permit to completion. Additions requiring new plumbing or HVAC take 3–6 months. Permitting adds 4–8 weeks upfront.
Is a home addition worth it vs. moving?
In your area, home additions often cost less than selling and buying a larger home (especially with closing costs and moving expenses). A $65,000 addition can add $55,000–$65,000 in home value while keeping your current location.
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