What are the principles of property service cost evaluation?

Property service quality evaluation shall follow the following principles:

1. The principle of legality;

2. Evaluation time principle.

3.0.2 Following the principle of legality, the appraisers shall conduct the appraisal on the premise of complying with relevant laws and regulations.

3.0.3 Following the principle of evaluation time, it is required that the evaluation result should be the objective level of the property service quality of the evaluation project at the evaluation time.

See Beijing Property Service Quality Evaluation Standard for details.