Exceptional 3.14-acre luxury estate lot in The Reserve in the heart of Colleyville. One of the last remaining large-acreage opportunities in a fully built-out luxury area, surrounded by established custom homes and minutes from Southlake Town Square, premier dining, shopping, schools, and DFW Airport. Features R-40 zoning, no HOA, flat topography, and all utilities verified to site including city water, sanitary sewer, gas, and electric. Potential to create a private estate, family compound, or subdivide into two (1.5) acre estate lots, subject to buyer verification and approvals. Optional $300,000 City-approved, permit-issued 36,000+ SF French Chateau plan package includes architectural, structural, MEP, civil plans and specs. Shallow front detention area is manmade per approved civil plans, not a natural pond, and may be reconfigured with revised drainage plans subject to engineering and City approval. Buyer's agents welcome.