How Much Does a Home Addition Cost in Denver
Home additions in Denver typically cost between $200 and $500 or more per square foot, with total project budgets often ranging from $150,000 to over $500,000. Costs vary based on whether the addition is built outward or upward, overall project size, and whether structural or utility upgrades are required. Second-story additions and pop-tops generally cost more due to increased structural, plumbing, electrical, and permitting complexity.
Key Cost Factors in Denver
Home Addition Cost Per Square Foot
Ground-level additions typically range from $80 to $200 per square foot. Second-story additions and pop-tops usually range from $200 to $500 per square foot, with many projects exceeding $400 per square foot when major structural or mechanical upgrades are involved.
Total Project Cost Ranges
Small room additions may cost $18,000 to $36,000, while larger additions and second-story expansions often range from $150,000 to $500,000 or more.
Building Out vs Building Up
Building outward generally costs less when zoning allows, while building upward preserves yard space but increases cost due to demolition and structural reinforcement.
Plumbing, Sewer, and Utility Requirements
Additions that add bathrooms, kitchens, or expanded footprints may require sewer, drainage, or water service upgrades, increasing project cost.
Electrical Capacity and System Upgrades
Electrical panel upgrades, service modifications, or replacement of outdated wiring are common cost drivers, especially in older Denver homes.
Permitting and Market Conditions
Design requirements, permitting standards, and Denver’s labor market contribute to overall construction costs.
What This Means for Homeowners
Home addition costs in Denver are shaped by utilities, structure, and permitting as much as by square footage. Early evaluation of these factors is key to accurate budgeting.
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