If you're looking for a property with a massive backyard and room to grow, 541 Old Abbey Court #B is one to pay attention to. Tucked away on a quiet court in one of Waterloo's best neighbourhoods, with very little traffic and great neighbours, this home offers the kind of space, flexibility and setting that is becoming harder and harder to find.Inside, the home is warm, comfortable and nicely updated, with hardwood flooring and a quality kitchen renovation completed in 2016. Both bathrooms have received quality-of-life upgrades, with the third-level bathroom most recently renovated in May 2026 with a new oversized shower. The entire home was freshly painted in June 2026, all appliances are owned, and a new hot water tank was installed in 2026. The layout gives you plenty of options for the future, with the potential to create four bedrooms, possibilities for in-law living, and even potential for a future ADU. A side entrance leads to a private side deck with convenient access to the backyard, while an attached garage, natural gas BBQ line, Kinetico water softener and reverse-osmosis drinking water system add to the everyday functionality of the home. The backyard is what really separates this property. It's massive, with room for a pool, cabana, gardens, play space, outdoor entertaining, an outbuilding and potentially an ADU. On most properties, you have to decide which of those things matters most. Here, the lot gives you enough space that you may not have to choose.You're also close to shopping, restaurants, parks, services and transit, giving you the peace and privacy of a quiet court without sacrificing convenience. This is a property where choice means getting what you want, not deciding what won't fit. A nicely updated home, a great court and an exceptional lot with the space and flexibility to make it your own.