Construction / Renovation Cost Estimator

What you get

A six-sheet Excel workbook that structures a complete residential construction or renovation budget, from initial project assumptions through a phase-level cost summary and a six-month cash-flow draw schedule. Material costs and labor costs are separated and organized by trade, so the estimate reflects how a real project is priced and contracted. All sheets link to a central summary that shows where money is concentrated and flags the mandatory 10% hard-cost contingency as a distinct, non-negotiable line.

Who it's for

General contractors building a pre-construction estimate to share with an owner, owner-builders managing their first ground-up or major renovation, and homeowners who need a credible budget before approaching a lender or signing contracts. It is most useful at the moment a scope is defined but before commitments are made — when the numbers still need pressure-testing.

What's inside

• Assumptions sheet — set square footage, finish level, base labor rate, and location adjustment factor; every downstream calculation pulls from these inputs
• Material take-off sheet — quantity-based pricing for each material category, organized so you can update unit costs as bids come in
• Labor by trade sheet — hours and rates entered per trade (framing, electrical, plumbing, finish, and others), keeping labor visible and auditable separate from materials
• Contingency and soft costs sheet — a fixed 10% hard-cost contingency line plus dedicated rows for permits, design and engineering fees, and project management
• Summary by phase sheet — rolls up all costs into construction phases so you can see where the budget is weighted and identify where scope changes will hurt most
• Cash-flow timeline — a six-month draw schedule formatted for lender submissions and owner cash planning, showing projected spend by period

How to use it

Open the file in Microsoft Excel or upload it to Google Sheets. Start on the Assumptions sheet and enter your project parameters, then work through the material take-off and labor sheets, replacing the sample quantities and rates with your own. The summary and cash-flow sheets update automatically, giving you a project-ready estimate and draw schedule without manual consolidation.