Yes, installing a tennis court can be a worthwhile home improvement project that adds value to your property. The potential increase in value can range from $20,000 to $150,000, and in some cases, the return on investment can cover more than 60% of the installation cost. However, the impact on value heavily depends on the size of your property. For homes with multiple acres, a tennis court is often a valuable amenity. In contrast, for homes on smaller lots, installing a court can decrease the property's value because it consumes a significant portion of the usable yard space. It's crucial to consider your property size and the remaining usable yard before proceeding.

Typically during transactions or refinancing, or whenever significant improvements are made.

In most cases, you can expect home automation to boost your home value. This technology makes the homeowner’s life easier and more comfortable, and some provide increased safety and protection. Buyers will likely recognize value in security systems and utility monitors, as well as comfort-focused upgrades that save on electric bills while keeping interior rooms at the desired temperature and humidity. On average, you can expect a 50% and 75% return on investment on home automation services, and potentially even more if the automation reduces homeowner’s insurance.

Whether or not new windows increase property taxes depends on where you live and by how much your upgrade increases your home’s value. Smaller projects likely won’t result in increased property taxes, but it’s always a good idea to err on the side of caution and check. Contact your local county appraisal department for the most accurate information about property taxes in your area.