While there's not a lot of definite research, some experts suggest that an in-ground or wall-mounted basketball hoop can add value to your home by increasing curb appeal. In addition, having a basketball hoop is an attractive feature of a house since it promotes physical activity, especially for children.

In most cases, installing a tennis court on your property will drive up your property taxes. Property taxes are determined, in part, based on improvements made to your property, which includes anything with a permanent foundation. Since most home tennis courts include a large concrete foundation, your property taxes will likely increase following the installation. A general rule of thumb is that if your project requires permits—like for a foundation or fencing for a tennis court—then your property taxes will be affected.

In short, yes, a pond can add to your home’s value. However, whether it adds value will depend on the condition and aesthetic of your pond. Having this feature already built into a yard’s home can be appealing to homebuyers who value its aesthetic and would prefer not to build it themselves. But if it is not kept in good condition, it could turn buyers away.

Yes, built-in bookshelves can be worth the investment and can add value to your home, especially when constructed from high-quality, timeless materials like luxury hardwood. They offer a practical and stylish storage solution that utilizes wall space effectively. While they cost more than store-bought units, the custom fit and potential to increase your property's resale value make them a desirable feature for many buyers, particularly for homeowners with large book collections. For the best return on investment, consider having them professionally built.