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How Much Does It Cost to Build a Sunroom?

The average cost of a sunroom addition ranges from $69 to $260 per square foot (three-season room). This covers the cost of building a typical three-season sunroom. As with any addition project, the cost may vary based on the materials you choose and the size of the sunroom. Keep reading to learn more about the cost to build a sunroom.
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Updated on January 04, 2018

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How Much Does It Cost to Build a Sunroom?

Estimated Sunroom Construction Costs
Albuquerque, NM$91 - $130 per sq. ft.
Fargo, ND$77 - $110 per sq. ft.
Miami, FL$88 - $130 per sq. ft.
Nashville, TN$74 - $110 per sq. ft.
New Orleans, LA$83 - $120 per sq. ft.
Omaha, NE$73 - $110 per sq. ft.
Pittsburgh, PA$76 - $110 per sq. ft.
Providence, RI$100 - $150 per sq. ft.
Salt Lake City, UT$84 - $120 per sq. ft.
San Jose, CA$130 - $190 per sq. ft.
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Cost Factors for Building a Sunroom:

1. Size of sunroom

The size of your sunroom addition impacts the price. Smaller sunrooms are typically less expensive than large sunrooms because they take less time to build and require fewer materials. The contractor will take the total square footage of the addition into account when providing a price quote.

2. Quality of materials and finishes

There are many choices you will have to make when it comes to what materials and finishes you want for your sunroom. For the exterior, a metal roof is more expensive than a shingled roof, for example. On the inside of the sunroom, you’ll need to choose what kind of flooring, paint, and fixtures you want.

You may want to purchase new furniture for your sunroom, which will increase your total project cost.

3. Climate control features

The local climate may actually have an impact on the cost of your project. If you live in a colder climate, it may require extra steps to ensure your sunroom can be used comfortably all-year round, It is possible to create a climate-controlled four-season sunroom with heating, cooling, and insulation. This is typically more expensive than building a three-season sunroom.

If you don’t want to pay for a four-season room, you could still add some smaller climate control features. For example, you could install electric baseboard or spot heaters for the winter and ceiling fans to switch on in the summer.

4. Number of windows

How much area do you want to cover with windows and glass? This can have a major impact on the cost of the project. For example, some people want to have floor to ceiling glass. The cost of materials for glass can get expensive quickly. Energy-efficient windows, in particular, can be very pricey.

A budget option would be to use screens instead of windows (if you are lucky enough to live in a warm-weather region that doesn’t get much rain).

5. Placement of sunroom

Where do you plan to build the sunroom? Building onto or enclosing an existing patio or deck may help you save money. Building a new foundation may have a significant impact on the total price.

Read more about the cost of pouring a concrete foundation.

6. Cost of construction in your area

All construction projects vary in price depending on the going rate for labor in your area. Sunroom construction can be done by a general contractor, home addition builder, or sunroom builder.

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See More: ProMatcher's Sunroom Cost Report

Related:
Cost of Building a Home Addition
Home Addition Permits
Pros and Cons of a Home Addition