Board approves Hermosillo accessory dwelling permit after owner-occupancy debate

Jul 14, 2025

King William County supervisors approved a conditional use permit for a detached accessory dwelling unit at 194 Flat Lane after debating whether to require owner-occupancy of the main residence; county attorney said owner-occupancy conditions can run with the land.

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The Board of Supervisors approved a conditional use permit (CUP 2-2025) for an accessory dwelling unit proposed at 194 Flat Lane, the planning staff reported. The proposed detached ADU would total 1,628 gross square feet (about 900 square feet of living area and a roughly 720-square-foot attached two-car garage) on an 11.9-acre R-1 parcel; zoning allows detached accessory dwellings only up to 800 square feet without a CUP.

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