Following the lead of Roswell and Milton, Alpharetta has consented to a proposed expansion of the North Fulton Community Improvement District.

The CID is a self-taxing district that taxes commercial property owners for local improvements. The expansion would add 366 properties to the district, 28 of them commercial for a total CID value increase of $173,886 a year, according to a letter by CID Chairman Kerry Armstrong to Alpharetta Mayor David Belle Isle.

Of the 28 commercial parcels, 13 are in Alpharetta, 15 are in Roswell and none are in Milton. A majority of property owners, and the owners representing at least 75 percent of the value of all affected real estate, have consented in writing to be taken into the CID, according to a resolution approved May 22 by the Alpharetta City Council.

The Roswell and Milton city councils passed their own resolutions earlier this month.