Land doesn’t depreciate in the same way that a house, vehicle, or other property does, but it can lose value based on various factors. Environmental changes, nearby development, zoning changes, and economic downturns can all cause land to lose value over time. Value is a comparative figure, so as other related factors change, so can land’s value.

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.

While some aspects of an appraisal, such as comparable properties nearby, are out of your control, there are several steps you can take to potentially increase your home's value. Make any necessary repairs and upgrades before the appraiser's visit, as they can only value what is currently part of the home, not its potential. Examples include renovating older areas, updating landscaping to boost curb appeal, and staging your home. You can also provide the appraiser with the cost of recent upgrades, which may increase your home's value by about 50% or more of what you paid for those improvements.

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.