"Development" means, on land, in or under water, the placement or erection of a solid material or structure; discharge or disposal of any dredged material or of any gaseous, liquid, solid, or thermal waste; change in density or intensity of use of land, including but not limited to, subdivision pursuant to the Subdivision Map Act (commencing with Section
66410 of the Government Code), and any other division of land, including lot splits, except where the land division is brought about in connection with the purchase of such land by a public agency for public recreational use; change in the intensity of use of water; or access thereto; construction, reconstruction, demolition, or alteration of the size of any structure, including any facility of any private or public or municipal utility; and the removal or harvesting of major vegetation other than for agricultural purposes; kelp harvesting, and timber operations which are in accordance with a timber harvesting plan submitted pursuant to the provisions of the Z'berg-Nejedly Forest Practice Act of 1973 (commencing with Section 4511). As used in this section structure includes, but is not limited to, any building, road, pipe, flume, conduit, siphon, aqueduct, telephone line, and electrical power transmission and distribution line.