How to Estimate Renovation and Construction Costs
Understanding project costs before you begin is essential for setting realistic budgets and avoiding the dreaded mid-project financial shock. Our cost estimator provides rough but useful estimates for common renovation and construction projects based on area, finish level, and your region's cost of living. While no calculator can replace a detailed contractor quote, having a ballpark figure helps you plan intelligently.
Renovation costs vary enormously based on three main factors: scope of work, finish level, and location. A budget kitchen renovation might cost $75–$150 per square foot, while a high-end kitchen with custom cabinetry and stone countertops can reach $300–$500 per square foot. Location has a massive impact too—the same renovation that costs $30,000 in a mid-sized city could cost $60,000 or more in New York or San Francisco due to higher labor rates and permit costs.
The typical cost breakdown for renovations is roughly 40% materials, 45% labor, and 15% permits, design fees, and contingency. Always include a contingency buffer of at least 15–20% in your budget for unexpected issues like hidden water damage, outdated wiring, or structural problems that only become apparent once walls are opened up.
Once you have a cost estimate, visualize the result before committing. Upload a photo of your current space to RoomLab and use AI to generate photorealistic previews at different budget levels. Seeing a mid-range versus high-end finish side by side helps you decide where to spend and where to save.