This research aimed to undertake an assessment of project management maturity inrnconstruction projects by taking the case of an Ethiopian grade-1 contractor—YOTEKrnConstruction PLC. The assessment was done by investigating the maturity level ofrnthirteen PMBOK’s knowledge areas, which were taken from the ConstructionrnExtension of the PMBOK Guide. Among the various project management maturityrnmodels (PMMMs), the PM Solutions’ PMMM was adopted as a model for conductingrnthe project management maturity assessment. The research was a descriptive type ofrnstudy having a cross-sectional time scope in data collection. It followed a mixedrnresearch approach, specifically the “Embedded Design Mixed Method,†where arnquantitative approach using a questionnaire survey was used as a primary method,rnwhile a qualitative approach using a document review had a secondary role in thernstudy to support the quantitative results. The research found that there was a generallyrnlow application of project management practices in the company as 65.5% ofrnknowledge area components were practiced below average and a company-widernmaturity level of 2.64 (from 1-5 maturity level scale) was scored. Project time,rnfinancial, and scope management were the highest matured knowledge areas in therncompany, while project risk management was the least matured knowledge area withrna maturity level of 1.8, followed by project equipment management with 2.01.rnMoreover, the results were compared with an industry benchmark values, and only thernproject time management knowledge area excelled its benchmark value counterpart.rnFinally, recommendations for identified project management practice gaps andrnpriority areas are put forward so as to provide a road map towards improvement ofrnmaturity level for each knowledge area and the company as a whole.