This article aims to find out the process for achieving smartness in urban architectural heritage conservation, maintenance, and operation and identify characteristics of the so-called smartness. It seeks to provide an example of introducing smart ideas into architectural heritage while encouraging more conservation. The discussions among architectural heritage conservation under the smart discourse are scattered in virtual applications, digital involvements, tourism, etc., and an integration method is worth considering. This article selected a platform for architectural heritage conservation and management of the Shanghai Federation of Literary and Art Circles (SFLAC), China. An integrated literature review is conducted to locate knowledge gaps. Thematic analysis is used for data analysis to develop the practising procedure and smart heritage features. Current practices lack a systematic consideration based on the perspective of conservation and management, which details applications for various groups in correspondence to stages. Interviews and policy document analysis were conducted to support the investigation. Smartness for architectural heritage should include policy guidance, digitalisation, platform integration, applications, and optimisations and has the feature of evolvement. Its practice should first promote heritage preservation and consider the benefits of different users, cultural inheritance, and urban regeneration based on different time durations.