The objective of this research was to investigate common problems, circumstances and conditions that had taken place in Tung Tan Tawan Apartment in regards to developing and assessment of management efficiency before and after the application of strategies. The sample groups were 10 apartment-for-rent entrepreneurs and 40 tenants. The first group was selected through purposive sampling, and data collected through in-depth interviewing. The second sample group was provided with questionnaires as the research instrument for further investigation. In addition, 10 of 40 apartment tenants were selected by convenience sampling methodology for collecting data by means of in-depth interview. After completing in-depth analysis, in both qualitative and quantitative aspects, the analytical outcome was extracted to guide and improve management development issues with the owner of Tung Tan Tawan Apartment Building. The research statistics was percentage, mean, and t-test statistics (Paired-Sample test).
The research revealed that problems of business dealings at Tung Tan Tawan Apartment Building resulted from unproductive performance in industries. It caused a reduction in the apartment-for-rent. It was also noticed that Tung Tan Tawan Apartments ineffective service was inferior to its rivals. The investigation showed the seven marketing strategies for development of management efficiency of Tung Tan Tawan Apartment, they consisted of comprised products, price, service, staff, marketing promotion, practical performance, and environment management. After the action research was conducted and applied to management efficiency, the number of occupied rooms had increased, from 40 to 60, with the increased total more than ten percent. The level of satisfaction was significantly different at 0.01. However, regarding to staff and service were the same; it reflected the application of strategies on management efficiency.
