Homeowners with oil or gas heating systems are anticipating price reductions of up to 30% when selling their properties, as energy efficiency becomes a crucial factor in real estate valuation. Experts indicate that unsanited homes will continue to face growing depreciation, shifting the traditional view that location alone determines property prices. The rising costs of energy, alongside the impacts of climate change, are expected to exacerbate this trend, potentially leading to significant declines in market value by 2050.

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