An exceptional development opportunity in one of Toronto's rapidly evolving corridors. 39 Lanark Ave comes with approved permits for a substantial addition/extension, allowing for a custom 2-storey residence exceeding 2,600 sq.ft. Above-grade, a rare head start that saves significant time and soft costs for builders and investors. The property also features rear garage access with strong potential for a Garden Suite (1-bedroom), offering an attractive multi-unit income strategy in line with Toronto's intensification trends. Strategically located near Eglinton Crosstown LRT, Allen Road, and major transit routes, this site benefits from excellent connectivity, strong rental demand, and long-term growth upside. Ideal for developers, builders, and savvy investors looking to capitalize on a permit-ready project with expansion and income potential. The existing home also provides interim usability for end-users or holding income. A rare opportunity to build, expand, and maximize value in a high-demand Toronto neighbourhood.