Home energy efficiency and sustainability have been major policy priorities for the Obama administration, but lurking in the background are two consistent, pesky questions:
Beyond the documentable savings on utilities bills, do such steps add to the resale value of a home? And do they make it easier or faster to sell your property?
Officials and housing groups say definitive statistical data covering multiple regions of the country are scarce. But some localized research projects in Oregon, Washington and California offer promising hints.