Upon passage of an ordinance annexing territory to the city the clerk shall record the ordinance with the register of deeds. The clerk shall certify annually to the secretary of state and record with the register of deeds a legal description of the total boundaries of the city as those boundaries existed on December 1, unless there has been no change in the 12 months preceding.
There shall be adopted an official map of the city consisting of two sheets, which shall be and remain on file in the office of city clerk, and which is made a part hereof by reference as follows: sheet 2 of 2 (street development plan), showing the location and width of streets within the city limits; and sheet 1 of 2 (street expansion plan), showing the location and width of the extension of the major street system of the city into the adjacent unincorporated area over which the city can exercise extraterritorial jurisdiction.
No land subdivision plat shall be approved unless such plat conforms to the official map.
The council may, after a public hearing as provided in section 62.23(6)(c) of the Wisconsin statutes, change or add to the official map of the city so as to establish the exterior lines of planned new streets, highways and parkways or to widen, narrow, extend or close streets, highways or parkways.
To conserve the integrity of the official map, no building shall be erected or located within the bed of any street or highway shown on the official map unless a permit shall first have been applied for and issued under section 62.23(6) of the Wisconsin statutes.
The city clerk shall file with the register of deeds of Green County a certificate showing any changes or additions to the official map.