The District’s proposed 37-mile streetcar network would spur development and raise property values by some $15 billion, not just give city residents more ways to get around, according to a new report. Some of the wealth generated by the eight lines could help pay the $1.5 billion it would cost to build it — or help with future operating costs — through options such as special taxing districts or business improvement districts.

“There’s some significant value increase that might give us a place to start the conversation with property owners,” Office of Planning Director Harriet Tregoning said.