There are a number of factors that go into determining how well a project will pay back.  Payback value depends a lot on the current market conditions in your area.  If the market is hot and homes are selling fast, you can expect a higher payback value than you would get in a slow market.  

The type of project you do and how it fits in with other homes in the area can have a big influence on payback too.  If you put your money into the wrong type of improvement, you wont get your money back.  But if you're smart about what you do, you can make money. The payback will be better on improvements that are in demand and conform to neighborhood standards.  Adding a second bathroom in a neighborhood where most homes have two bathrooms will give a high return on investment.  Building a large addition that makes your home twice as big as the other homes on the block probably wont pay back very well.  Likewise, the popularity of a project will factor into how much it pays back.  An improvement heavily customized to your wants and needs wont pay back as well as something more common to other homes in the neighborhood.

Another factor to consider is the cost of the improvements.  If you can do the work yourself, you can save significantly on the cost of the project and greatly improve the chances of getting a good return on the investment.

The list below is compiled from several published surveys and shows typical payback for some popular remodeling projects:

• Kitchen remodeling; 90%
• Bathroom addition; 90%
• Bathroom remodeling; 80%
• Central heating installation; 90%
• Central air installation; 75%
• Deck addition; 70%
• Window replacement; 70%
• Room addition; 55%
• New swimming pool; 45%
• Basement refinishing; 40%