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A sunroom is worth installing on a deck, both for the value and your own enjoyment. A Florida room addition costs between $10,000 and $140,000, so it’s pretty expensive. However, a quality sunroom can offer a 50% return on investment, making your home more sellable. Plus, if it’s a space you and your family enjoy relaxing in daily for years to come, it’s worth the money, time, and effort, even without the added monetary value.

A Florida room doesn’t have insulation, nor is the space heated, so in most cases, the room won’t be comfortable enough to use during the winter months. A four-season room, which is like a Florida room that’s insulated, heated, and cooled, is a better option if you’re looking to enjoy your sunroom all year long.

The cost to screen in a porch depends on whether you are adding screens to an existing structure or building a new one from scratch. Adding screens to an existing porch costs about $5 to $7 per square foot, with a national average cost of around $2,800. For example, screening a 12-by-12-foot (144-square-foot) porch would likely cost between $700 and $1,000. If you are building a new screened-in porch, the cost is substantially higher. A new 12-by-12-foot screened-in porch can cost between $6,400 and $18,300, while a new 14-by-16-foot one averages around $11,000. The final price will vary based on the size of the porch, labor costs, and the materials you choose.

A screened-in porch can add value to your home, with a potential return on investment (ROI) of 70% to 84%. The actual value added depends heavily on several factors. Climate is a major consideration; homes in warm, humid, or buggy areas (like the Southern regions) see the highest ROI. In colder climates, the value is diminished as the unconditioned space is unusable for much of the year. Other factors that influence the return include the quality of materials and construction, the size of the porch, and the local real estate market. While a screened-in porch can enhance curb appeal and attract potential buyers, it is not included in the home's total square footage for appraisal purposes.