Enter your current property value and the square footage of your existing home to estimate both the potential cost to build a high‑quality ADU and the additional equity it may create. This tool helps Arizona homeowners visualize the financial impact of adding a professionally built casita before requesting a proposal.
Use the fields to estimate the current market value per square foot of your home. Once entered, this calculator estimates potential property value growth, estimated construction cost, and possible net equity for the casita size you would like to build.
This visual compares your current property value with the projected value after adding the ADU size you entered above, along with the estimated value added by that new space.
Based on a 600 sq ft casita, estimated monthly rental income may range from $1,500 to $2,100 per month depending on location, finishes, amenities, parking, and market demand. That equates to approximately $18,000 to $25,200 in potential annual rental income.
Based on the property details entered above, an ADU of 600 sq ft may add approximately $203,116 in estimated property value. Using an estimated average build cost of $250.00 per square foot, the projected construction cost would be about $150,000, which may result in approximately $53,116 in estimated net equity. This estimate assumes a high‑quality ADU built to the standards used by Arizona Casita Builders. Our team manages the entire process including engineering, permitting, and coordination with local municipalities. We also provide no‑cost consultations, custom proposals, and 3D renderings so homeowners can clearly visualize their project before construction begins.
Unlike basic backyard structures, our casitas are designed as full‑quality living spaces built to the same standards as a primary home. Typical projects include:
This calculator uses an estimated construction cost based on the type of high‑quality ADU builds completed by Arizona Casita Builders. Actual pricing may vary depending on finishes, site conditions, excavation requirements, utility connections, and material costs.
Creates a clean equity report you can save as a PDF.
