Embarking on a home renovation can be an exciting timedepending on the project, you have carte blanche to make your home unique, fix problem areas that have been neglected, and even boost your homes value should you decide to sell it down the line.But not every renovation will sustain that last goal. In addition to renovations that dont increase value, there are even some that can hurt a sale. Ahead, seasoned realtors and home improvement pros reveal the nine renovations that can devalue your homeplus what you should be considering instead.Overly personalized designIts natural to make your home your own, but if you have plans to sell your house at any point, steer clear from overcustomizing your space. This can include anything from eye-catching kitchen backsplashes to trendy wallpapers or painted murals. Bold accent walls, ultra-modern fixtures, or anything too niche can turn buyers off, explains Yoann Dorat, global real estate advisor with ONE Sothebys International Realty. They cant picture themselves living there, and buyers think renovation project as soon as they see it. Neutral design wins every time.Bedroom conversionsWorking from home has become more ubiquitous, so converting a bedroom into a beautiful home office (or a home gym or even a walk-in closet) might feel like a smart movebut beware if you do. This one is a deal killer. Bedrooms add direct value, and most buyers search for homes based on bedroom count, says Dorat. Turn a bedroom into an office, walk-in closet, or gym, and you lose serious appealespecially if youre dropping from four beds to three.Garage conversionsMost buyers still want garages. If you plan to use yours for something other than storing cars, consider if its an easily reversible design should you plan to sell in the future.Photo: Don Mason/Getty ImagesConversely, if you barely use your garage for housing your car, it might seem smart to convert that space into something livable or more usablelike an accessory dwelling unit or a gym. But resist the urge if you plan to sell, because garages are truly valuable to a prospective buyer. While its tempting to create extra living space, buyers still want garages, Dorat says. In suburban and family-friendly markets, this is especially true. Losing a garage often means losing buyer interest.Overimprovingor overbuildinga homeEven if you have the funds to add more square footage or luxury, high-end finishes, it doesnt make sense if itll make your home stand out badly. An oversized home in a neighborhood of modest three-bedroom homes can make the property stick out to the point that it can deter prospective buyers, says Leo Peak, a realtor with Peak Family Real Estate Group. People shopping for homes in a specific price range or community often expect homes that align with the areas overall aesthetic and functionality.Adding a poolPools can be great in the summer. But their seasonality and upkeep can make them unattractive to potential buyers.Photo: Scott Van Dyke/Getty Images