Gov. Deval Patrick has signed legislation allowing the Boston Parks and Recreation Commission to convert two historic restroom buildings into commercial and restaurant space.

The legislation allows for the restoration and commercial development of the former comfort stations, the Duck House in the Back Bay Fens and the Pink Palace on Boston Common.

Under terms of the new law, commercial leases at the two comfort stations must ensure the preservation and maintenance of the historic properties for park-related purposes.

"This law will give these two historic buildings a new lease on life, providing the City of Boston with new sources of revenue and park visitors with much-needed places to rest, refresh and refuel," said Patrick.

Boston City Council President Michael Ross added, "We have seen restaurants transform neighborhoods from the South End to Mission Hill, and I believe we will see the same shift in the Boston Common and Back Bay Fens once a restaurant or small business opens in these parks."