Del. Code tit. 25 § 81-120
If a cooperative or planned community created within this State before the effective date of this chapter, contains no more than 20 units and is not subject to any development rights expanding it to include more than 20 units, or the annual average common expense liability of each unit restricted to residential purposes, exclusive of optional user fees and any insurance premiums paid by the association, does not exceed $500, as adjusted pursuant to this section, it is subject only to §§ 81-105 (Separate titles and taxation), 81-106 (Applicability of local ordinances, regulations, and building codes), and 81-107 of this title (Eminent domain), but to no other sections of this chapter unless the declaration is amended in conformity with applicable law and with the procedures and requirements of the declaration to take advantage of the provisions of §§ 81-121 of this title, in which case all the sections enumerated in § 81-119 of this title apply to that cooperative or planned community. Commencing with the July 1 next following the effective date of this chapter and each July 1 thereafter, the $500 maximum assessment specified in this section may be increased by an amount not in excess of 3 percent over the amount so calculated for the previous year. The bylaws of any such cooperative or planned community, and any amendments thereto, shall be recorded.
25 Del. C. § 81-120