San Martín de los Andes

San Martín de los Andes is Argentine Patagonia's most coveted alpine resort town, set on the eastern shore of Lake Lácar at the gateway to Lanín National Park and the Chapelco ski resort. With dollar-denominated pricing dominating a cash market, the average Patagonian family home runs around US$230,000 as of January 2026, but scarce flat, buildable land near the centre commands far more. The Centro and Chapelco corridor is forecast to post 10-15% price growth in 2026, roughly double the regional average, driven by record passenger numbers at Patagonian airports and a 500%+ year-over-year surge in Argentine mortgage activity as inflation cooled to around 31% by late 2025. Five-year cumulative appreciation could reach 35-60% in best-case scenarios. Turnkey winterized chalets and lakefront apartments suit dual long-term and seasonal-tourism rental strategies, with gross yields typically 5-7% in dollars. Foreign buyers should note Ley 26.737 border-security-zone restrictions: San Martín lies near the Chilean frontier, and although Milei's Decree 70/2023 repealed foreign-ownership caps, that repeal faces a constitutional challenge and remains legally ambiguous as of 2026. Urban, non-rural plots in town are generally unaffected, but rural or water-bordering parcels warrant prior INSF clearance and local counsel before purchase.