Legal analysis: after the warranty period expires, the housing maintenance fund can be started for the maintenance, renewal and transformation of residential parts and facilities. Involving unsold commercial housing, non-residential housing or public housing, the developer's construction unit or public housing unit shall share the cost of maintenance, renewal and transformation according to the construction area of unsold commercial housing or public housing.

Legal basis: Measures for the Administration of Residential Special Maintenance Funds

Eighteenth residential special maintenance funds should be earmarked for residential * * * parts, * * facilities and equipment maintenance and renovation after the expiration of the warranty period, and shall not be used for other purposes.

Nineteenth residential special maintenance funds should be used in accordance with the principles of convenience, openness and transparency, and the beneficiaries and the burden subjects should be the same.

Article 21 Where the maintenance, renewal and transformation of residential parts and facilities involve unsold commercial housing, non-residential housing or public housing, the development and construction unit or public housing unit shall share the cost of maintenance, renewal and transformation according to the construction area of unsold commercial housing or public housing.