Rare 1+ acre opportunity in the heart of Colleyville's highly desirable northwest corner, home to several multi-million dollar estates and large-lot properties. This ~99' x 499' deep lot offers exceptional potential for builders, investors, or buyers seeking a premier estate property, with plenty of room for future expansion. A large 40' x 60' workshop with electricity offers space for cars, furniture-making, woodworking, or other major hobbies. The existing 2,321 SF single-story home has great bones and a solid floorplan, ready for some cosmetics to bring it to its full potential--plus recent updates including roof, gutters, water heater, windows, well equipment, and HVAC system already in place. Inside you'll find 2 living + 2 dining areas plus a large bonus room next to the primary suite, currently used as a spacious closet for the primary bedroom. It could easily be re-purposed as a study or nursery. The house has an attached 2 car garage and the shop could accommodate 4 more vehicles. Functional water well. Less than one block to the Cotton Belt Trail - no HOA. Zoned R40, with horses allowed. Contact city to verify horses and number allowed. GCISD. Bring your vision and make this home your own.