Replacing old elements, such as doors, windows and siding, in general yielded a better financial return than bigger remodeling projects, such as additions. But real estate agents and remodelers say updated kitchens and baths still bring a significant payoff, especially at resale time. The report found that kitchen projects yielded a higher return than bath projects, with a minor kitchen remodel adding 82.7 percent of the project’s cost back to the home’s value. Kitchens are important, Aaron says, because would-be buyers often overestimate how much they would cost to update.