General Background: Construction project planning relies on structured cost estimation to maintain financial feasibility and operational control. Specific Background: The PringSewu Cultural Market development project requires a comprehensive Cost Budget Plan to govern expenditures effectively during implementation. Knowledge Gap: Precise quantification of material proportions, labor allocations, and infrastructural costs for local cultural market developments is rarely detailed systematically in preliminary project documents. Aims: This study aims to estimate total construction costs and establish a reference framework for controlling project expenditures throughout the execution of the PringSewu Cultural Market development. Results: Applying a descriptive quantitative approach revealed a total estimated cost of Rp 13,814,500.00, with market building materials comprising the largest financial proportion, followed by labor and road construction works. Novelty: This research provides an empirical breakdown of cost structures specifically tailored for a community cultural market project combining building and access road components. Implications: Implementing this structured cost budget plan supports efficient resource management, prevents budget overruns, and ensures well-controlled project execution. Key Findings Highlights Market building materials represent the largest portion of the total budget at 64.2%. Labor costs account for 23.8% of the budget, highlighting the significant role of human resources. Road construction works comprise 12.0% of the total budget, ensuring vital accessibility to the cultural market. Keywords Cost Budget Plan (Rab), Construction Cost Estimation, Cultural Market, Project Planning, Budget Control