Under the dual guidance of digital transformation and high-quality development in the construction industry

the traditional design management model

plagued by drawbacks such as information silos and process fragmentation

exhibits problems including lengthy design cycles and prominent resource waste. Taking the guest room renovation project of Beijing Renaissance Wangfujing Hotel (a complex building project) as the empirical research object

this paper innovatively constructs an integrated project management framework centered on WBS (Work Breakdown Structure)

CPM (Critical Path Method)

MBO (Management by Objectives)

and BIM (Building Information Modeling).Project practice verification shows that this method shortens the design cycle from the industry average of 10 months to 7.5 months

a reduction of 25%; simultaneously

it achieves a design change rate reduced to 4%

a 30% increase in core resource utilization

a 100% occupancy rate of renovated guest rooms

and an increase in customer satisfaction to 92%. This study provides replicable and promotable digital transformation paths and management paradigms for hotel renovation projects.