It shall be unlawful for any person, firm or corporation to place, keep or maintain any trailer or house car on any land within the unincorporated area of the Town of Hempstead, except that the occupant of any single-family dwelling therein may allow, upon written consent of the owner, not more than one trailer or house car of a guest to be placed, kept or maintained thereon for a period of time not exceeding three months in any calendar year by securing a permit, as provided under §
239 hereof.
This article shall not prohibit the use of trailers by municipalities
and governmental agencies or the use by contractors of trailers in
connection with construction work on job sites during the period of
actual construction of private or municipal projects.